Johnson Controls HVAHP0721CW Series Service Manual
  1. Manuals
  2. Brands
  3. Johnson Controls Manuals
  4. Air Conditioner
  5. HVAHP0721CW Series
  6. Service manual
Johnson Controls HVAHP0721CW Series Service Manual

Johnson Controls HVAHP0721CW Series Service Manual

Inverter-driven multi-split system heat pump air conditioners, outdoor units low ambient vrf heat pump
Hide thumbs
1
2
3
4
5
6
7
8
9
10
Table Of Contents
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
Table of Contents

Advertisement

Quick Links

Download this manual
SERVICE MANUAL
INVERTER-DRIVEN MULTI-SPLIT SYSTEM
HEAT PUMP AIR CONDITIONERS
Service Manual
< Outdoor Units
(Low Ambient VRF Heat Pump)
(H,Y)VAHP072(3,4)1CW
(H,Y)VAHP096(3,4)1CW
(H,Y)VAHP144(3,4)1CW
(H,Y)VAHP168(3,4)1CW
(H,Y)VAHP192(3,4)1CW
(H,Y)VAHP288(3,4)1CW
>
SM-16007

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the HVAHP0721CW Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Johnson Controls HVAHP0721CW Series

Summary of Contents for Johnson Controls HVAHP0721CW Series

  • Page 1 SERVICE MANUAL INVERTER-DRIVEN MULTI-SPLIT SYSTEM HEAT PUMP AIR CONDITIONERS Service Manual < Outdoor Units (Low Ambient VRF Heat Pump) > (H,Y)VAHP072(3,4)1CW (H,Y)VAHP096(3,4)1CW (H,Y)VAHP144(3,4)1CW (H,Y)VAHP168(3,4)1CW (H,Y)VAHP192(3,4)1CW (H,Y)VAHP288(3,4)1CW SM-16007...
  • Page 3 Important Notice Johnson Controls Inc. pursues a policy of continuing improvement in design and performance in its products. As such, Johnson Controls Inc. reserves the right to make changes at any time without prior notice. Johnson Controls Inc. cannot anticipate every possible circumstance that might involve a potential hazard.
  • Page 4 4. Please contact your local agent or contractor as any issues involving installation, performance, or performed by a customer without the written consent of Johnson Controls, Inc. Performing any mechanical alterations on this product without the consent of the manufacturer will render your warranty null and void.
  • Page 5 If these devices are improperly adjusted or tampered with in any way, a serious accident can occur. Never bypass or jump-out any safety device or switch. Johnson Controls will not assume any liability for injuries or damage caused by not following steps prohibited as they…...
  • Page 6 Take the following precautions to reduce the risk of property damage. Be careful that moisture, dust, or variant refrigerant compounds not enter the refrigerant cycle during installation work. Foreign matter could damage internal components or cause blockages. Do not install this unit in any place where silicon gases can coalesce. If the silicon gas molecules could run inside of the electrical box, possibly causing electrical failures.
  • Page 7 As originally manufactured, this unit contains refrigerant installed by Johnson Controls. Johnson or market. Johnson Controls distributors similarly are only authorized to provide refrigerants that have been approved for use in the countries or markets they serve. The refrigerant used in this unit obtained from Johnson Controls distributors.
  • Page 8 When shielded cabling is applied, proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.
  • Page 9 Be sure to install circuit breakers (ground fault interrupter, isolating switch, molded case circuit Clamp electrical wires securely with a cable clamp after all wiring is connected to the terminal block. In addition, run wires securely through the wiring access channel. When installing the power lines, do not apply tension to the cables.
  • Page 10 viii SM-16007...

  • Page 11: Table Of Contents

    - Table of Contents - 1. Installation ..........................1-1 1.1 Outdoor Unit ............................1-2 1.2 Optional Parts..........................1-75 1.2.1 For Outdoor Unit ........................1-75 1.2.1.1 Drain Adaptor ........................1-76 1.2.1.2 Protection Net ........................1-78 1.2.1.3 Snow Protection Hood ......................1-87 1.2.1.4 Topping Prevention Tool ....................1-113 1.2.1.5 Seismic Kit ........................1-115 1.2.2 Piping Kit ..........................1-119 1.2.2.1 Piping Connection Kit ......................1-120...
  • Page 12 - Table of Contents - 4. Maintenance ..........................4-1 4.1 Maintenance of Outdoor Unit ......................4-2 4.1.1 Removing Front Service Cover ....................4-2 4.1.2 Attaching Front Service Cover ....................4-3 4.1.3 Removing Top Cover and Upper Cover .................4-4 4.1.4 Removing Protection Net .......................4-6 4.1.5 Removing Electrical Box Cover ....................4-7 4.1.6 Removing Electrical Box ......................4-8...
  • Page 13 Power Consumption Display Function ...................5-29 6. Field Work Instructions ......................6-1 6.1 Caution for Refrigerant Leakage .....................6-2 6.2 Modifications of Charging Refrigerants Other than Those Specified by Johnson Controls .....6-3 6.3 Maintenance Work ..........................6-4 6.4 Service and Maintenance Record by 7-Segment Display ...............6-5 6.5 Service and Maintenance Record by Wired Controller ..............6-6...

  • Page 15: Installation

    INSTALLATION 1. Installation SM-16007...
  • Page 16 INSTALLATION 1.1 Outdoor Unit - Table of Contents - 1. Introduction ..............................1-3 2. Important Safety Instructions .........................1-3 3. Before Installation ............................1-8 3.1 Factory-Supplied Accessories .......................1-8 3.2 Necessary Tools and Instrument List for Installation ................1-9 3.3 Flaring and Joint ............................1-11 3.4 Line-Up of Outdoor Units ........................1-13 3.5 Combinations of Indoor Units and Outdoor Units ..................1-14 3.6 Caution about Outdoor Unit Installation ....................1-15 3.7 Piping Work between Outdoor Units .....................1-15...

  • Page 17: Introduction

    If these devices are improperly adjusted or tampered with in any way, a serious accident can occur. Never bypass or jump-out any safety device or switch. Johnson Controls will not assume any liability for injuries or damage caused by not following steps prohibited as they…...
  • Page 18 INSTALLATION Take the following precautions to reduce the risk of property damage. Be careful that moisture, dust, or variant refrigerant compounds not enter the refrigerant cycle during installation work. Foreign matter could damage internal components or cause blockages. Do not install this unit in any place where silicon gases can coalesce. If the silicon gas molecules could run inside of the electrical box, possibly causing electrical failures.
  • Page 19 Controls uses only refrigerants that have been approved for use in the unit’s intended home country or market. Johnson Controls distributors similarly are only authorized to provide refrigerants that have been approved for use in the countries or markets they serve. The refrigerant used in this unit this unit must comply with the country’s requirements with regard to refrigerant use and should be...
  • Page 20 When shielded cabling is applied, proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.
  • Page 21 INSTALLATION Be sure to install circuit breakers (ground fault interrupter, isolating switch, molded case circuit Clamp electrical wires securely with a cable clamp after all wiring is connected to the terminal block. In addition, run wires securely through the wiring access channel. When installing the power lines, do not apply tension to the cables.

  • Page 22: Before Installation

    INSTALLATION 3. Before Installation Factory-Supplied Accessories Check to ensure that the following accessories are packed with the outdoor unit. inch (mm) Accessory 72 Type 96 Type Remarks Cable Clamp For Fixing Power Supply Wiring and PVC Tube Cable Band × 5 ×...

  • Page 23: Necessary Tools And Instrument List For Installation

    INSTALLATION Necessary Tools and Instrument List for Installation Tool Tool Tool Handsaw Pliers Wire Cutters Phillips Screwdriver Pipe Cutter Gas Leak Detector Vacuum Pump Brazing Kit Level Refrigerant Gas Hose Hexagon Wrench Crimper for Solderless Terminals Megohmmeter Wrench Hoist (for Indoor Unit) Copper Pipe Bender Scale Ammeter...
  • Page 24 INSTALLATION : Interchangeability is available with current R22 : Only for Refrigerant R410A (No Interchangeability with R22) : Prohibited : Only for Refrigerant R407C (No Interchangeability with R22) Interchangeability Reason of Non-Interchangeability and Attention with R22 Measuring Instrument and Tool ( : Strictly Required) R410A R407C...

  • Page 25: Flaring And Joint

    INSTALLATION Flaring and Joint Flaring Dimension inch (mm) Diameter -0.02 (-0.4) R410A 1/4 (6.35) 0.36 (9.1) 3/8 (9.52) 0.52 (13.2) 1/64 ~ 1/32R 1/2 (12.7) 0.65 (16.6) 5/8 (15.88) 0.78 (19.7) with hard temper pipe. 3/4 (19.05) Joint Selection the table below. <...
  • Page 26 INSTALLATION Processing at Brazing Connection To prevent gas leakage at the brazing connection, refer to the table for the insertion depth and the gap for joint pipe. inch (mm) Diameter Min. Insertion Depth (A - D) 3/16 < D < 5/16 1/4 (6) (5 <...

  • Page 27: Line-Up Of Outdoor Units

    INSTALLATION Line-Up of Outdoor Units (1) This outdoor unit series capacity range is from 72 MBH to 288 MBH. 144 MBH to 288 MBH are made of 72 MBH and 96 MBH combinations. (2) The outdoor unit of 144 to 288 MBH consists of the combination of two or three base units. The capacities not shown in the table below are unavailable.

  • Page 28: Combinations Of Indoor Units And Outdoor Units

    INSTALLATION Combinations of Indoor Units and Outdoor Units Table 3.1 Indoor Unit Type List Capacity (MBH) Indoor Unit Type Ducted (High Static) (H,Y)IDH_B21S Ducted (Medium Static) (H,Y)IDM_B21S Ducted Ducted (Slim) (H,Y)IDS_B21S Ducted (EconoFresh) (H,Y)IDM_B21E DOAS (H,Y)DOA_B21S Ceiling-Mounted 4-Way Cassette (H,Y)IC4_B21S Ceiling-Mounted 4-Way Cassette Mini (H,Y)ICM_B21S Ceiling-Mounted 2-Way Cassette (H,Y)IC2_B21S...

  • Page 29: Caution About Outdoor Unit Installation

    INSTALLATION Caution about Outdoor Unit Installation When the installation and piping work for the multiple outdoor units are performed, it is required that the arrangement for outdoor units and piping length be determined. Perform the installation work in strict accordance with the following restrictions. NOTICE of the outdoor unit.

  • Page 30: Outdoor Unit Installation

    INSTALLATION 4. Outdoor Unit Installation Installation Location and Precautions To reduce the risk of serious injury or death, the following installation precautions must be followed. When installing the unit into… A wall: Make sure the wall is strong enough to hold the unit’s weight. It may be necessary to construct a strong wood or metal frame to provide added support.

  • Page 31: Service Space

    INSTALLATION Service Space Additionally, adequate clearance is required for service maintenance access. (Unit: inch) Min. 59-1/16 Front Rear Side Side 19-11/16 30-1/8 Min. 19-11/16 + h2/2 Min. 11-13/16 + h1/2 < Side View > - If there are no walls on the front and rear sides, clearance for service access is required as follows: * Front Side: Minimum 19-11/16 inch (500mm) * Rear Side: Minimum 11-13/16 inch (300mm) * Right and Left Sides: Minimum 3/8 inch (10mm)
  • Page 32 INSTALLATION 1) Walls on Two Sides If units are installed adjacent to tall buildings where there are two open sides, the minimum rear side clearance must be at least 11-13/16 inch (300mm). • Single Installation • Multiple / Serial Installation (Unit: inch) No limit for No limit for...
  • Page 33 INSTALLATION 3) Walls on Four Sides • Single Installation (Unit: inch) No limit for side wall height. Min. 11-13/16 + h1/2 Min. 7-7/8 Min. 7-7/8 ▼ No limit for side wall height. Min. 31-1/2 Front Side Open Min. 19-11/16 + h2/2 <Top View>...

  • Page 34: Transportation And Installation Work

    INSTALLATION 5. Transportation and Installation Work Transportation Transport the product as close to the installation location as practical before unpacking. When using a crane, hang the unit according to the description of the outdoor unit packing. Sling Belt Position CORRECT INCORRECT Sling Belt Sling Belt...
  • Page 35 INSTALLATION Take special care when hanging or moving the outdoor unit because its center of mass is off-center and unbalanced. See the diagram below. Center of Gravity inch (mm) Center of Gravity Voltage 68-1/8 Type (1,730) 20-7/8 22-13/16 208/230V (530) (580) (305) 19-11/16...

  • Page 36: Handling Of Outdoor Unit

    INSTALLATION When using a forklift, do not insert forks into Do not apply excessive force to the squared the slots at the unit side panels. The unit can slots with forks or other materials. The bottom sustain damage. of the unit can become deformed. * Do not push the bottom base with forks.

  • Page 37: Installation Work

    INSTALLATION Installation Work 5.3.1 Concrete Foundations (1) The height of the foundation should be more than 5-7/8 inch (150mm) above the ground. (2) Provide adequate drainage around the foundation. (Unit: inch) Details of Installing Anchor Bolt Min. 3-3/16 Anchor Bolt (M12) (Field-Supplied) Nut (Field-Supplied) 3/16 2-3/4...
  • Page 38 INSTALLATION mats. Refer to Figure 5.3 for the location of holes for anchor bolts. (Unit: inch) 37-5/16 (Pitch for Anchor Bolts) 5-3/8 5-3/8 18-11/16 Min. 3-1/8 Vibration Proof Mat (3 portions of each front and rear) 4 - 1-1/2 x 9/16 Long Hole (Hole for Anchor Bolt (M12)) Figure 5.3 Positions of Anchor Bolts 1-24...

  • Page 39: Condensate Treatment

    INSTALLATION 5.3.2 Condensate Treatment Condensation is discharged during heating and defrosting operations. (Rain water is also discharged.) Comply with the following conditions. (1) Choose a place where good drainage is available, or provide a drainage ditch. (2) Do not install the unit over walkways. Condensation can spill onto people. If installing the unit in such a place, utilize the additional condensation drainage pan.

  • Page 40: Refrigerant Piping Work

    INSTALLATION 6. Refrigerant Piping Work The pressure for this product is 601 psi (4.15MPa). The pressure required for refrigerant R410A is 1.4 times higher than that of the refrigerant R22. That means that the refrigerant piping for R410A refrigerant piping may rupture due to an excessive refrigerant pressure. Pay close attention to the piping thickness when using copper refrigerant piping.

  • Page 41: Piping Materials

    INSTALLATION Piping Materials (1) Obtain locally-supplied copper pipes. (2) Use the copper pipe for refrigerant piping. (3) Pay close attention to pipe thickness. (4) Use clean copper pipes. Make sure there is no dust or moisture inside the pipes. Blow nitrogen or dry compressed air into the pipes to remove any dust or foreign materials before connecting them.
  • Page 42 INSTALLATION connections to the system. are leak free upon completion of the work. NOTE: Apply Refrigerant Oil. [Ethereal Oil: FVC68D (Idemitsu Kousan Co. Ltd.)] Do not apply refrigerant oil to exterior flared surfaces. < Required Tightening Torque > Pipe Size Tightening Torque 1/4 inch (6.35 mm) 10.3 - 13.3 ft·lbs (14 - 18 N·m)
  • Page 43 INSTALLATION [ Example for Pipe Support ] Outdoor Unit Treatment for Section Installing Parts for Piping: Install at Appropriate Intervals of Fire Prevention Multi-Kit Install Horizontally Indoor Unit [ Secure for Liquid Piping, Gas Piping ] NOTE: Gas Piping Due to changing refrigerant temperatures, gas and liquid piping will stretch.

  • Page 44: Piping Connection Work

    INSTALLATION Piping Connection Work Comply with the restrictions for refrigerant piping (permissible length, height difference) in Section 6.5 “Piping Work Conditions” and “Piping Branch Restriction”. If not, the outdoor unit can become damaged or fail. The stop valves will be closed completely (factory-setting) when refrigerant piping connections are performed. Do not open these stop valves until all the refrigerant piping connections, airtight testing, and vacuuming have been completed.

  • Page 45: Piping Connection Method

    INSTALLATION < Liquid Valve > Do not put refrigerant leakage may occur from the spindle part. (To prevent wrenches here. leakage, place two wrenches at the positions as shown at the right when removing and connecting piping. Model Type Tightening Torque Position both Flare Nut 72 and 96...
  • Page 46 INSTALLATION Refer to Figure 6.2 for the position for piping connections. Unit: inch (mm) φ7/8 (22.2) Refrigerant Gas Piping Connection φ3/8 (9.52) Refrigerant Liquid Piping Connection Konckout Square Hole for Piping Cover 5-11/16 (145) 6-11/16 (170) Square Holes at Refrigerant Gas Piping Connection 8-1/16 (205) Front and Back Sides 6-11/16 (170)
  • Page 47 INSTALLATION Stop Valve (Gas) Stop Valve (Liquid) Flaring Liquid Pipe (Field-Supplied) Gas Pipe Elbow A (Field-Supplied) (Field-Supplied) NOTES: 1-33 SM-16007...

  • Page 48: Outdoor Unit

    INSTALLATION Piping Work between Outdoor Units Select the pipe size according to Section 6.4 “Piping Size between Outdoor Units”. For refrigerant piping between multiple outdoor units, use the optional piping connection kit. The arrangement for outdoor units should be determined depending on the piping direction when the refrigerant piping work and installation work are planned.
  • Page 49 INSTALLATION (3) When piping length between outdoor units is 6.6 ft (2m) or more, an oil trap for the gas piping should be installed so that any accumulation of refrigerant oil cannot occur. Oil Trap Oil Trap Min. 7-7/8 inch Min.
  • Page 50 INSTALLATION combination. Regarding the piping work for Combination Unit, refer to the “Installation and Maintenance Manual” attached to the piping connection kit. Gas Line Ref. Piping Connection Liquid Line Ref. Piping Connection < Downward Piping Connection > Outdoor Unit A Base (Field-Supplied) Accessory Pipe...

  • Page 51: Piping Size Between Outdoor Units

    INSTALLATION Piping Size between Outdoor Units Base Unit Outdoor Unit Refrigerant Piping To Indoor Units inch (mm) Model Type 7/8 (22.2) 7/8 (22.2) Piping Size Liquid 3/8 (9.52) 3/8 (9.52) Two Units Combination (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A Outdoor Unit B Outdoor Unit B...
  • Page 52 INSTALLATION Three Units Combination (Indoor Unit on Left Side) (Indoor Unit on Right Side) Outdoor Unit A Outdoor Unit B Outdoor Unit C Outdoor Unit C Outdoor Unit B Outdoor Unit A Piping Piping Piping Piping To Indoor Units To Indoor Units Connection Kit 2 Connection Kit 1 Connection Kit 1...

  • Page 53: Piping Size And Multi-Kit Selection

    INSTALLATION Piping Size and Multi-Kit Selection For selecting the pipe sizes between the outdoor unit and the piping connection kit, the piping size between the piping connection kits and piping connection kit , refer to Section 6.4 “Piping Size between Outdoor Units”.
  • Page 54 INSTALLATION Piping Size < inch (mm) > [Main Pipe Diameter] (Base Unit or Piping Connection Kit 1 to First Branch) Equivalent Piping Length Outdoor Unit Capacity < 328.1 ft (100m) > 328.1 ft (100m) *1) (MBH) Liquid Liquid 72, 96 7/8 (22.2) 3/8 (9.52) 1-1/8 (28.58)
  • Page 55 INSTALLATION Comply with the following when installing the unit. [ Example ] Upstream Side < For two and three units combination > Outdoor Outdoor Outdoor Unit Unit Unit Indoor Unit Side Piping Piping Connection Kit 1 Connection Kit 2 First Branch Indoor Indoor Indoor...
  • Page 56 INSTALLATION Allowable Piping Length < the recommended > the recommended Item Mark number of connected number of connected indoor unit indoor unit Total Piping Length < 1,640 ft (500m) < 984 ft (300m) Actual Length < 541 ft (165m) < 541 ft (165m) Maximum Piping Length Equivalent Length <...
  • Page 57 INSTALLATION In the following instances, there is no limit to the number of main piping branches. (Example 1) : Installation with Main Piping Branch ( ) 90m). (1) If the pipe length L2 is over 131.2 ft (40m), the size of gas and liquid pipes “b and c” or “g and h” should be selected according to Table below, “Diameter of Pipe after First Branch”.
  • Page 58 INSTALLATION A header branch can be used with a line branch at the three pipes segment and two pipes segment. A header branch can also be used after the second branch. Do not connect a line branch to a header branch to the farthest indoor unit is within 131.2 ft (40m).

  • Page 59: Multi-Kit Connection

    INSTALLATION Multi-Kit Connection Use the branch piping kit to ensure proper piping. Do not use a T-Joint. Secure the branch pipes horizontally to a pillar, a wall, or a ceiling. NOTE: When installing the piping by securing plates, wrap the branch pipe with an insulation or slip a cushioning between the pipe and the plate.

  • Page 60: Electrical Wiring

    When shielded cabling is applied, proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.

  • Page 61: General Check

    When shielded cabling is applied, proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.
  • Page 62 INSTALLATION (1) Power Source Wiring Supply the power sources to each outdoor unit and indoor unit group respectively. Using this method is a basic principle of power supply wiring. GFCI (Ground Fault Circuit Interrupter) Outdoor Unit Power Source S (Main Switch and Fuse) AC 3~ 208/230V 60Hz AC 3~ 460V 60Hz Power Supply Wiring (O.U.)
  • Page 63 When shielded cabling is applied, proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.

  • Page 64: Electrical Wiring For Outdoor Unit

    TB2 terminals 3 and 4 on the PCB1. When shielded cabling is applied (M4), proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.

  • Page 65: Electrical Wiring Connections Of Indoor Unit, And Outdoor Unit

    Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements. (Do not use Tri-Core or anything beyond.)
  • Page 66 INSTALLATION (6) Use the same kind of cables in the same H-LINK system. (7) Maintain at least 5 inch (127mm) between the communication cables and the power supply wiring, and also min. 5 ft (1.5m) between the communication cables and power supply wiring for other electrical device.
  • Page 67 INSTALLATION Outdoor Unit A (Main) Outdoor Unit B (Sub) L1 L2 L3 1 2 3 4 L1 L2 1 2 3 4 Ground Ground Main Switch TB : Terminal Block PCB : Printed Circuit Board : Field Wiring : Communication Line GFCI GFCI DC5V (Non-Pole Communication H-LINK System)

  • Page 68: Dip Switch Setting Of Outdoor Unit

    INSTALLATION DIP Switch Setting of Outdoor Unit Turn OFF all power sources before performing settings. and 6 pins of DSW4, No.4 pin of DSW7 and push switches can be operated when power source is ON.) The darkened square “ ” indicates the position of DIP switches. NOTE adjustment is made.
  • Page 69 INSTALLATION Setting for Transmitting Setting the outdoor unit Nos., refrigerant system Nos. and end terminal resistance for this H-LINK system. Setting of Outdoor Unit No. If there are combined outdoor units, set DSW6 as shown below. Combination of Base Unit Base Unit Unit A Unit B...
  • Page 70 INSTALLATION Voltage DSW7 Setting DSW7 is used for setting of rated voltage for the outdoor unit as shown at right. 208V 1 2 3 4 When the site power source voltage is different from factory setting, a DSW7 setting is required. 230V NOTE: 1 2 3 4...
  • Page 71 INSTALLATION Function Setting External Input/Output and Function Setting Make sure to perform external input/output and function setting while the outdoor unit is stopped. It cannot be set while the outdoor unit is operating or check mode. Details of Checking Mode should be [ External Input/Output Setting ] [ Function Setting ] according to the exhibit of...

  • Page 72: Additional Refrigerant Charge

    INSTALLATION 8. Additional Refrigerant Charge Airtight Test (1) Check to ensure that spindles of the stop valves for gas and liquid pipes are closed completely before airtight test. (2) The refrigerant used for this outdoor unit is R410A. Use the manifold gauge and the charging hose for exclusive use of R410A.
  • Page 73 INSTALLATION < Airtight Test Method > (1) Connect the manifold gauge to the check joints of the liquid line and the gas line stop valves using charging hoses with a vacuum pump or a nitrogen cylinder. Perform the airtight test. Do not open the stop valves.

  • Page 74: Vacuuming

    INSTALLATION Vacuuming (1) Connect a manifold gauge and vacuum pump to the check joints (Gas Stop Valve and Liquid Stop Valve). (2) Continue vacuum pumping work until the pressure reaches -14.5 psi (-0.1MPa, -756mmHg) or lower for one to two hours. Once the desired vacuum pressure has been reached, turn OFF the pump and leave the gauge for one hour.
  • Page 75 INSTALLATION (b) Operate the compressor in the cooling mode and charge the additional refrigerant from the check joint of the liquid stop valve. An acceptable error must fall within 1.1 lbs (0.5 kg). At this time, keep the liquid stop valve slightly open. (c) After the refrigerant is charged, fully open the liquid stop valve and the gas stop valve.

  • Page 76: Additional Refrigerant Charge Calculation

    INSTALLATION Additional Refrigerant Charge Calculation Table 8.1 Additional Refrigerant Charge Calculation Although this unit has been charged with refrigerant, an additional refrigerant charge is required according to piping length. Determine what additional quantity of refrigerant according to the following procedures, and charge it into the system.

  • Page 77: Automatic Simple Judgment System For Refrigerant Amount

    INSTALLATION < Max. Additional Refrigerant Charge Quantity Allowed > Outdoor Unit Capacity (x 1,000 Btu/h) 72, 96 144 - 192 Max. Additional Ref. Charge Quantity (lbs) 61.7 112.5 138.9 < Initial Ref. Charge Amount of O.U. (Before Shipment) (W0 lbs) > Outdoor Unit Capacity (x 1,000 Btu/h) 72, 96 W0 Outdoor Unit Ref.
  • Page 78 INSTALLATION (1) Refrigerant quantity check operation can be performed using the automatic judgment function after completing refrigerant charging, but depending on the installation and conditions, the result may be with the refrigerant amount calculated in the previous section regardless of this automatic judgment function result.
  • Page 79 INSTALLATION Wait for at least three minutes after turning OFF the No.4 pin of DSW5 OFF and then the outdoor unit is ready to run. NOTE: During the check of refrigerant quantity operation, the 7-segment display may change over to display the protection control code by the activation of protection control.

  • Page 80: Test Run

    INSTALLATION 9. Test Run Test Run should be performed in accordance with Section 9.2. Use Table 9.1 for recording the Test Run. An electrical shock will occur if there is residual voltage. Turn OFF power at the power source completely before attempting any electrical maintenance work. Verify that no residual voltage exists after turning OFF the power at the power source.
  • Page 81 INSTALLATION Caution for Insulation Resistance If the total unit insulation resistance is lower than one megaohm, the compressor insulation resistance may be lower, due to refrigerant being retained in the compressor. This can occur if the unit has not been used over prolonged periods of time. itself.

  • Page 82: Test Run

    INSTALLATION Test Run This test run method is for the wired controller. As for other controllers, refer to the “Installation and Maintenance Manual” attached to each controller. (1) Check to ensure that stop valves for gas and liquid of the outdoor unit are fully opened. (In the case of combined outdoor units, check to ensure that all stop valves of the outdoor units are fully opened.) (2) Perform the test run of indoor units one by one sequentially, and then check the accordance of the...
  • Page 83 INSTALLATION (d) Press “ ” or “ ”, select “LOUV.” and select “ ” (auto swing) by pressing “ ” or “ ”. The auto-swing operation will start. Check the operating sound at the louvers. If an abnormal sound emanates from the louvers, it may be caused by a deformation in the decorative panel due to incorrect installation.
  • Page 84 INSTALLATION DIP Switch Setting Operation Remarks 1. Setting of Operation Mode 1. The indoor unit automatically * Note that indoor units operate in starts operating when the test run conjunction with the test run operation Cooling: Set No.2 pin of DSW4 OFF. of the outdoor unit is set.
  • Page 85 INSTALLATION Table 9.1 Test Run and Maintenance Record MODEL: SERIAL. No. COMPRESSOR MFG. No. CUSTOMER'S NAME AND ADDRESS: DATE: 1. Is the rotation direction of the indoor fan correct? 2. Is the rotation direction of the outdoor fan correct? 3. Are there any abnormal compressor sounds? 4.
  • Page 86 INSTALLATION Table 9.2 Alarm Code Code Category Content of Abnormality Leading Cause Activation of Float Switch (High Water Level in Indoor Unit Activation of Protection Device (Float Switch) Condensation Drainage Pan, Problem with Drain Piping, Float Switch, or Condensation Drainage Pan) Activation of Protection Device Activation of PSH (Pipe Clogging, Excessive Outdoor Unit...
  • Page 87 INSTALLATION Code Category Content of Abnormality Leading Cause Incorrect Capacity Code Setting of Combination Incorrect Capacity Setting of Outdoor Unit and Excessive or Insufficient Indoor Unit Total Indoor Unit Capacity Code Incorrect Setting of Indoor Unit No. Duplication of Indoor Unit No. in same Refrigerant Group System Incorrect Indoor Unit Combination Indoor Unit is Designed for R22...
  • Page 88 INSTALLATION Compressor Protection The compressor is protected by the following devices and their combinations. (1) High Pressure Switch: This switch cuts out the operation of the compressor when the discharge pressure exceeds the setting. (2) Oil Heater: This band type heater protects against oil foaming during cold starting, as it is energized while the compressor is stopped.

  • Page 89: Optional Parts

    INSTALLATION 1.2 Optional Parts 1.2.1 For Outdoor Unit - Table of Contents - 1.2.1.1 Drain Adaptor: DBS-TP10A ........................1-76 1.2.1.2 Protection Net ............................1-78 ......................1-78 ......................1-81 .......................1-84 1.2.1.3 Snow Protection Hood ..........................1-87 ..................1-87 ..................1-95 ..................1-101 ..................1-107 ....................1-113 1.2.1.5 Seismic Kit: SSK-TP10A ........................1-115 1-75 SM-16007...

  • Page 90: Drain Adaptor

    INSTALLATION 1.2.1.1 Drain Adaptor: DBS-TP10A This drain adaptor is for the drain pipe connection in order to enable use of the outdoor unit bottom base as a drain pan. Install it as follows. IMPORTANT NOTICE: drain adaptor. could result in minor or moderate injury. 1.
  • Page 91 INSTALLATION Installation of Drain Adaptor The drain adaptor is for the drain pipe connection so as to use the Projection Hole for outdoor unit bottom base as a drain pan. Drain Adaptor Drain Adaptor (1) Put the rubber cap in the drain adaptor (to the upper part Drain Adaptor of the drain adaptor projection) in the direction of the arrow.

  • Page 92: Protection Net

    INSTALLATION 1.2.1.2 Protection Net Protection Net (Rear): PN-TP10BA, PN-TP10BB This protection net is to protect the outdoor unit heat exchanger from external damages such as being hit by a ball. Install it as instructed in this manual. IMPORTANT NOTICE: protection net. 1.
  • Page 93 INSTALLATION 3. Before Installation Unit: inch (mm) Qty. Accessory PN-TP10BA PN-TP10BB (914) Protection Net 55-11/16 (for Rear Side (1415) Installation) (1174) Bottom (1): Spare 4. Installation Procedures installation procedures. at the top of the outdoor unit rear side , and set the protection net (for rear side installation) except for the top (...
  • Page 94 INSTALLATION 5. Installation Appearance Unit: inch (mm) Protection Net Screws (for Rear Side (Accessories) Installation) Protection Net Protection Net (for Right Side (for Left Side Installation) Installation) (Other Protection (Other Protection Net Option) Net Option) Outdoor Unit 3-15/16 29-1/2 3-15/16 3-15/16 (100) (750)
  • Page 95 INSTALLATION Protection Net (Right): PN-TP10R This protection net is to protect the outdoor unit heat exchanger from external damages such as being hit by a ball. Install it following the instructions below. IMPORTANT NOTICE: protection net. : Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.
  • Page 96 INSTALLATION 3. Before Installation Check that all the following accessories are packed with the unit before installation. Unit: inch (mm) Qty. Accessory Remarks PN-TP10R Protection Net 55-11/16 (for Right Side (1415) Installation) Bottom 13-7/16 (342) Screw (1): Spare (with Washer) 4.
  • Page 97 INSTALLATION 5. Installation Appearance Unit: inch (mm) Protection Net (for Rear Side Installation) Screws (Other Protection (Accessories) Net Option) Protection Net Protection Net (for Left Side (for Right Side Installation) Installation) (Other Protection Net Option) Outdoor Unit 3-15/16 29-1/2 3-15/16 3-15/16 (100) (750)
  • Page 98 INSTALLATION Protection Net (Left): PN-TP10L This protection net is to protect the outdoor unit heat exchanger from external damages such as being hit by a ball. Install it following the directions below. IMPORTANT NOTICE: protection net. : Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury.
  • Page 99 INSTALLATION 3. Before Installation Check that all the following accessories are packed with the unit before installation. Unit: inch (mm) Qty. Accessory Remarks PN-TP10L Protection Net 55-11/16 (for Left Side (1415) Installation) Bottom 23-1/8 (587) Screw (1): Spare (with Washer) 4.
  • Page 100 INSTALLATION 5. Installation Appearance Unit: inch (mm) Protection Net (for Rear Side Screws Installation) (Accessories) (Other Protection Net Option) Protection Net Protection Net (for Right Side (for Left Side Installation) Installation) (Other Protection Net Option) Outdoor Unit 3-15/16 29-1/2 3-15/16 3-15/16 (100) (750)

  • Page 101: Snow Protection Hood

    IMPORTANT NOTICE: • Johnson Controls pursues a policy of continuous improvement in design and performance of products. We • No part of this manual may be reproduced without Johnson Controls’ written permission. • Keep this manual for future reference.
  • Page 102 INSTALLATION To hold the snow protection hood properly to the outdoor unit against a strong wind or an earthquake, safety outdoor unit from overturning. prevent rusting. maintenance. to wear protective equipment (such as gloves). it may be the cause of rusting. Handle with care when the snow protection hood is installed and assembled.
  • Page 103 INSTALLATION 4. Before Installation Check that all the following accessories are packed with the unit before installation. Unit: inch (mm) Qty. Accessory Remarks Right Side Plate Left Side Plate Horizontal Plate for Left Side for Left Side (Rear Side) for Right Side for Right Side (Rear Side) Screw...
  • Page 104 INSTALLATION 5. Installation Procedures and left side plate ( ) together (two places) by using screws for assembling ( ) (in four places) by using screws for assembling ( ) by using screws for assembling ( [ Screws for Assembling ( 1-90 SM-16007...
  • Page 105 INSTALLATION ) by using screws for assembling ( [ Screws for Assembling ( (5) Remove the screws for securing the outdoor unit top plate (six places), then secure the snow protection hood (for the air outlet) with those removed screws. Snow Protection Hood (for Air Outlet) Screws for Fixing Top Plate...
  • Page 106 INSTALLATION ) with the Snow Protection Hood (for Air Outlet) (Tighten the fixing plate with the screws for Outdoor Unit assembling ( 1-92 SM-16007...
  • Page 107 INSTALLATION 6. Installation Appearance Unit: inch (mm) Dimension Applicable Outdoor Unit Hood for 29-27/32 Right Side Air Inlet (758) Hood for Air Outlet (other snow protection hood option) Hood for Safety Wire Rope Hood for Left Side Air Inlet to Prevent Overturning Rear Side Air Inlet (other snow (field-supplied)
  • Page 108 INSTALLATION 7. Maintenance and Servicing caused by alkaline or corrosive moisture, recommendations are to provide salt damage resistance products to prevent such damage. In order to prolong the product life, perform periodical maintenance to prevent in conjunction with air conditioners’ inspection. applying coating agent.
  • Page 109 IMPORTANT NOTICE: • Johnson Controls pursues a policy of continuous improvement in design and performance of products. We • No part of this manual may be reproduced without Johnson Controls’ written permission. • Keep this manual for future reference.
  • Page 110 INSTALLATION To hold the snow protection hood properly to the outdoor unit against a strong wind or an earthquake, safety outdoor unit from overturning. prevent rusting. maintenance. to wear protective equipment (such as gloves). it may be the cause of rusting. Handle with care when the snow protection hood is installed and assembled.
  • Page 111 INSTALLATION 4. Before Installation Check that all the following accessories are packed with the unit before installation. Unit: inch (mm) Qty. Accessory Remarks Right Side Plate Left Side Plate Faceplate (Top Side) Faceplate (Back Side) For installation: Screw (tapping screw accepting burring TP hole (for Installation) type B)
  • Page 112 INSTALLATION 5. Installation Procedures ) with the right side plate ( ) and left side plate ( ), and tighten by using six screws for assembling ( [ Screws for Assembling ( ) to the outdoor unit, and set the snow protection hood (for rear side air inlet) to the outdoor unit. Tighten the other six screws ( (Screws at the Top of the Snow Protection Hood)
  • Page 113 INSTALLATION 6. Installation Appearance Unit: inch (mm) Dimension Applicable Outdoor Unit Safety Wire Rope to Prevent Overturning Hood for Air Outlet (field-supplied) (other snow protection hood option) Hood for Hood for Right Side Air Inlet Left Side Air Inlet (other snow protection (other snow protection hood option) hood option)
  • Page 114 INSTALLATION 7. Maintenance and Servicing caused by alkaline or corrosive moisture, recommendations are to provide salt damage resistance products to prevent such damage. deterioration. Carry out the following periodical inspection and maintenance works in conjunction with air conditioners’ inspection. applying coating agent. Wear protective equipment such as vinyl gloves when handling the coating agent to prevent contact with skin.
  • Page 115 Be sure to read this manual carefully for correct performance before installation work. IMPORTANT NOTICE: • Johnson Controls pursues a policy of continuous improvement in design and performance of products. • No part of this manual may be reproduced without Johnson Controls’ written permission. •...
  • Page 116 INSTALLATION To hold the snow protection hood properly to the outdoor unit against the strong wind or earthquake, stay or outdoor unit from overturning. installation or maintenance. sure to wear the protective equipment (such as gloves). cause of rusting. Handle with care when the snow protection hood is installed and assembled. Caulking Agent (with high viscosity) (Recommended Product: SHINETSU Silicon KE45RTV (transparent type), Preparation Articles...
  • Page 117 INSTALLATION 4. Before Installation Check that all the following accessories are packed with the unit before installation. Unit: inch (mm) Qty. Accessory Remarks Right Side Plate Left Side Plate Faceplate (Top Side) Faceplate (Back Side) For installation: Screw (tapping screw accepting burring TP hole (for Installation) type B)
  • Page 118 INSTALLATION 5. Installation Procedures (1) Tighten the faceplate (back side) ( ) with the right side plate ( ) and left side plate ( ) together (8 places) by using screws for assembling ( ) to the outdoor unit, and set the snow protection hood (for right side air inlet) to the outdoor unit. Tighten the other four screws ( hood installation, there must be no gap between the outdoor unit top plate and the hood upper part.
  • Page 119 INSTALLATION 6. Installation Appearance Unit: inch (mm) Dimension Applicable Outdoor Unit Safety Wire Rope to Prevent Overturning Hood for Air Outlet (field-supplied) (other snow protection hood option) Hood for Hood for Left Side Air Inlet Right Side Air Inlet (other snow protection hood option) Hood for Rear Side Air Inlet...
  • Page 120 INSTALLATION 7. Maintenance and Servicing protection hood is used under such condition. the deterioration. Carry out the following periodical inspection and maintenance works in conjunction with air conditioners’ inspection. (1) Red Rust Generation and Coating Film Check applying coating agent. The coating agent may give bad effects to your skin. Wear the protective equipment such as vinyl gloves when handling coating agent to prevent contacting with skin.
  • Page 121 INSTALLATION IMPORTANT NOTICE: • Johnson Controls pursues a policy of continuous improvement in design and performance of products. • • Keep this manual for future reference. • Johnson Controls cannot anticipate every possible circumstance that might involve a potential hazard.
  • Page 122 INSTALLATION outdoor unit from overturning. prevent rusting. maintenance. assembled. Caulking Agent (with high viscosity) (Recommended Product: SHINETSU Silicon KE45RTV (transparent type), Preparation Articles Cloth (for wiping off surplus caulking agent) Screw into the hole filled with caulking agent. * Wipe off excess agent Caulking Agent Screw with a cloth.
  • Page 123 INSTALLATION 4. Before Installation Accessory Remarks Right Side Plate Left Side Plate Faceplate Faceplate For installation: accepting burring TP hole For installation: 1-109 SM-16007...
  • Page 124 INSTALLATION 5. Installation Procedures (Screws for Installation at the Top of the Snow Protection Hood) Hood Upper Part Shape of Snow Protection Hood Fitting Slot (for Left Side Air Inlet) 9/32 Outdoor Unit 1-110 SM-16007...
  • Page 125 INSTALLATION 6. Installation Appearance Dimension 29-27/32 (758) Hood for Air Outlet (other snow Hood for Hood for Right Side Air Inlet protection hood option) Left Side Air Inlet (other protection hood option) Hood for Safety Wire Rope Rear Side Air Inlet to Prevent Overturning (other snow protection hood option)
  • Page 126 INSTALLATION 7. Maintenance and Servicing products to prevent such damage. : 1.8 + 1-112 SM-16007...

  • Page 127: Topping Prevention Tool

    INSTALLATION 1.2.1.4 Toppling Prevention Tool: ASG-SW20A This Toppling Prevention Tool is to prevent the outdoor unit from overturning by strong winds or an earthquake (when the Snow Protection Hood is attached). Install it as instructed in this manual. IMPORTANT NOTICE: Toppling Prevention Tool.
  • Page 128 INSTALLATION 3. Installation Procedures A below and attach the eyebolt ( ) to the 5/16inch (8mm) hole on the lower part of the Snow Protection Hood. (2) Tighten the securing plate ( ) to the foundation with the anchor bolt for assembling. B below and tighten the anchor bolt.

  • Page 129: Seismic Kit

    During an earthquake this Seismic Kit prevents destruction or damage to the outdoor unit by improving its strength and fracture toughness. IMPORTANT NOTICE: • Johnson Controls pursues a policy of continuous improvement in design and performance of products. • • Keep this manual for future reference.
  • Page 130 INSTALLATION 3. Before Installation Accessory Qty. Remarks Left Support Right Support Washer 1-116 SM-16007...
  • Page 131 INSTALLATION 4. Seismic Kit Installation Procedures [for Front Left] into the square hole on the outdoor unit bottom base to temporarily fasten the bolt and the nut ( Wrench Phillips-head Driver the front and back right of the outdoor unit bottom base. NOTE: 1-117 SM-16007...
  • Page 132 INSTALLATION 5. Installation Appearance Seismic Kit Seismic Kit Seismic Kit Front Side Rear Side 6. Outdoor Unit Installation Procedure Fasten the bolt tightly. NOTE: Enlarged Cross Section of Installing Anchor Bolt Right Side of Unit (Unit: inch) Min. 3-3/16 Anchor Bolt (M12) (Field-Supplied) Nut (Field-Supplied) 3/16 2-3/4...

  • Page 133: Piping Kit

    INSTALLATION 1.2.2 Piping Kit - Table of Contents - 1.2.2.1 Piping Connection Kit ..............................................................

  • Page 134: Piping Connection Kit

    Important Notice Johnson Controls Inc. pursues a policy of continuing improvement in design and performance in its products. As such, Johnson Controls Inc. reserves the right to make changes at any time without prior notice. Johnson Controls Inc. cannot anticipate every possible circumstance that might involve a potential hazard.
  • Page 135 Never bypass or jump-out any safety device or switch. Johnson Controls will not assume any liability for injuries or damage caused by not following steps outlined or May create hazards which could result in death, serious injury or equipment damage;...
  • Page 136 INSTALLATION When a wireless controller is used, locate at a distance of at least 3.3 ft. (1m) between the indoor unit and Do not install the unit in any location where animals and plants can come into direct contact with the outlet air stream.
  • Page 137 When shielded cabling is applied, proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.
  • Page 138 INSTALLATION When installing the power lines, do not apply tension to the cables. Secure the suspended cables at regular intervals, but not too tightly. Make sure that the terminals do not come into contact with the surface of the electrical box. If the terminals are too close to the surface, it may lead to failures at the terminal connection.
  • Page 139 INSTALLATION Do not place any material on this product 3. Before Installation IMPORTANT! package before opening. Do NOT intermix any foreign objects within this kit. Verify that no foreign objects are present inside any kit components prior to installation. MC-NP30A1 MC-NP20A1 MC-NP21A1 Name of Parts...
  • Page 140 INSTALLATION Branch Pipe for Branch Pipe for Reducer for Reducer for Model High/Low Pressure Gas Line Liquid Line High/Low Pressure Gas Line Liquid Line OD 1 ID 5/8 ID 3/8 OD 3/4 ID 5/8 ID 1 ID 3/4 ID 1/2 ID 7/8 ID 3/4 ID 7/8...
  • Page 141 INSTALLATION 4.2 Installation Position • Horizontal Installation (Inclination within +15 Make the straight section a minimum of 1.6ft (0.5m) after the vertical bend. Incorrect installation can result in the failure of the outdoor unit. Upward Inclination Straight Length within +15 Min.
  • Page 142 INSTALLATION 4.4 Piping Work is required. inch (mm) Recommended Mini-Pipe Cutter Available Cut Size Rotating Radius 13/16 (21) 3/16 - 1-1/8 2 inches (51) (5 - 29) 2-3/4 (70) 2-3/4 inch (70mm) or less 2. Use clean copper piping with no dust or moisture on internal surfaces present. When connecting refrigerant piping, cut copper pipes with a pipe cutter as shown below.
  • Page 143 INSTALLATION Make sure that all stop valves of the outdoor unit are closed completely. Bleed nitrogen gas through refrigerant lines when brazing. Pressure should not exceed 2.9psi (0.02MPa). Make sure that a test for leakage of refrigerant gases has been performed. The refrigerant used for this unit The air-tight test pressure for this product is 601psi (4.15MPa).
  • Page 144 Important Notice Johnson Controls Inc. pursues a policy of continuing improvement in design and performance in its products. As such, Johnson Controls Inc. reserves the right to make changes at any time without prior notice. Johnson Controls Inc. cannot anticipate every possible circumstance that might involve a potential hazard.
  • Page 145 Never bypass or jump-out any safety device or switch. Johnson Controls will not assume any liability for injuries or damage caused by not following steps outlined or May create hazards which could result in death, serious injury or equipment damage;...
  • Page 146 INSTALLATION When a wireless controller is used, locate at a distance of at least 3.3 ft. (1m) between the indoor unit and Do not install the unit in any location where animals and plants can come into direct contact with the outlet air stream.
  • Page 147 As originally manufactured, this unit contains refrigerant installed by Johnson Controls. Johnson Controls Johnson Controls distributors similarly are only authorized to provide refrigerants that have been approved faceplate and/or in the associated manuals. Any additions of refrigerant into this unit must comply with distributors.
  • Page 148 INSTALLATION When installing the power lines, do not apply tension to the cables. Secure the suspended cables at regular intervals, but not too tightly. Make sure that the terminals do not come into contact with the surface of the electrical box. If the terminals are too close to the surface, it may lead to failures at the terminal connection.
  • Page 149 INSTALLATION 4. Installation Work 4.1 Piping Connection Size with the pipe size. Allow adequate space for elbow, angled, and irregular piping arrangements to compensate for expansion and contraction brought on by temperature change. Reducer for Branch Pipe for Branch Pipe for Reducer for Model High/Low Pressure...

  • Page 150: Multi-Kit (Line Branch)

    INSTALLATION 4.2 Installation Position Horizontal Installation Locate the “Y” union pipe section on the same horizontal plane. (Inclination within 30 Make the straight section a minimum of 1.6ft (0.5m) after the vertical bend. Total Straight Section Upward Min. 1.6ft (0.5m) Inclination within 30 Horizontally...
  • Page 151 INSTALLATION 4.3 Connection Procedure for Piping Joint When connecting liquid piping for the unit with a capacity 15 MBH or smaller, and when the length of piping is 49.2ft (15m) or longer, use a piping diameter size of 3/8 inch (9.52mm). Secure the connecting pipe as shown below.
  • Page 152 INSTALLATION Make sure that all stop valves on the outdoor unit are closed completely. Blow-out the inside of the pipes with nitrogen gas before brazing. Bleed nitrogen gas through refrigerant lines when brazing. Pressure should not exceed 2.9psi (0.02MPa). Make sure that a test for leakage of refrigerant gases has been performed. The refrigerant used for this unit NOTE When polyethylene foam is applied, a thickness of 13/32 inch (10mm) for liquid piping and 19/32 to 25/32 inch (15 to 20mm) for gas piping is recommended.
  • Page 153 Important Notice Johnson Controls Inc. pursues a policy of continuing improvement in design and performance in its products. As such, Johnson Controls Inc. reserves the right to make changes at any time without prior notice. Johnson Controls Inc. cannot anticipate every possible circumstance that might involve a potential hazard.
  • Page 154 Never bypass or jump-out any safety device or switch. Johnson Controls will not assume any liability for injuries or damage caused by not following steps outlined or May create hazards which could result in death, serious injury or equipment damage;...
  • Page 155 INSTALLATION When a wireless controller is used, locate at a distance of at least 3.3 ft. (1m) between the indoor unit and Do not install the unit in any location where animals and plants can come into direct contact with the outlet air stream.
  • Page 156 When shielded cabling is applied, proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.
  • Page 157 INSTALLATION When installing the power lines, do not apply tension to the cables. Secure the suspended cables at regular intervals, but not too tightly. Make sure that the terminals do not come into contact with the surface of the electrical box. If the terminals are too close to the surface, it may lead to failures at the terminal connection.
  • Page 158 INSTALLATION Do not lay any material on this product. 3. Before Installation package before opening. Do NOT intermix any foreign objects within this kit. Verify that no foreign objects are present inside any kit components prior to installation. Name of Parts MH-NP224A MH-NP288A Qty.
  • Page 159 INSTALLATION 4. Installation Work 4.1 Piping Connection Size with the pipe size. Allow adequate room for elbow, angled, and irregular piping arrangements to compensate for expansion and contraction brought on by temperature change. Models Gas Line Liquid Line Expander Closing Pipe (For Gas Line) φ3/4 ID 5/8...
  • Page 160 INSTALLATION 4.3 Connection Procedure for Piping Joint When connecting liquid piping for a unit with a capacity of 15 MBH or smaller, and with a length of piping 49.2ft (15m) the insulation attached to the indoor unit. Expander for Liquid Line (Accessory) Flare the pipe after inserting the flare nut.
  • Page 161 INSTALLATION (3) Make sure that all stop valves for the outdoor unit are closed completely. (4) Bleed nitrogen gas through refrigerant lines when brazing. Pressure should not exceed 2.9psi (0.02MPa). Make sure that a test for leakage of refrigerant gases has been performed. The refrigerant used for this unit (5) The air-tight test pressure of this product is 601psi (4.15MPa).
  • Page 162 INSTALLATION Branch Pipe for Gas Line Branch Pipe for Liquid Line Install the branch pipe horizontally by placing it on the Suspend the branch pipe from the ceiling so that the platform. branch pipe port openings are horizontal. Ceiling Ceiling Suspension Bracket (Field-Supplied)

  • Page 163: Operation

    OPERATION 2. Operation SM-16007...
  • Page 164 OPERATION SM-16007...

  • Page 165: Troubleshooting

    TROUBLESHOOTING 3. Troubleshooting SM-16007...

  • Page 166: Initial Troubleshooting

    TROUBLESHOOTING Initial Troubleshooting 3.1.1 Checking Electrical Wiring and Power Source Check the following items for any abnormalities in the activation of the system. Check Situation Check Method Is any power source breaker or Check the voltage (secondary side) of the breaker and also fuse open? check the continuity of the fuse with a tester.
  • Page 167 TROUBLESHOOTING Example for Electrical Wiring Connection Outdoor Unit A (Main) Outdoor Unit B (Sub) L1 L2 L3 1 2 3 4 L1 L2 1 2 3 4 Ground Ground Main Switch TB : Terminal Block PCB : Printed Circuit Board : Field Wiring : Communication Line GFCI...
  • Page 168 When shielded cabling is applied, proper bonding and termination of the cable shield is required as per Johnson Controls guidelines. Plenum and riser ratings for communication cables must be considered per application and local code requirements.
  • Page 169 TROUBLESHOOTING (a) Wired Controllers to each Unit for Individual Operation Setting Indoor Unit Indoor Unit Outdoor Unit Wired Wired Controller Controller (b) One Wired Controller for Individual Operation Setting Indoor Unit Indoor Unit Outdoor Unit Wired The communication cabling Controller for the wired controller is necessary.

  • Page 170: Location Of Printed Circuit Boards (Pcbs)

    TROUBLESHOOTING 3.1.2 Location of Printed Circuit Boards (PCBs) Model: (H,Y)VAHP072B31CW and (H,Y)VAHP096B31CW CMC1 FANM PCB1 FFB1 PCB2 Model: (H,Y)VAHP072B41CW and (H,Y)VAHP096B41CW DCL1 FANM1 CMC1 PCB1 ZNR1 ZNR2 FFB1 PCB2 SM-16007...
  • Page 171 TROUBLESHOOTING Purpose Symbol Purpose PCB1 Outdoor Unit PCB 1. Transmitting between Indoor Unit and Outdoor Unit (for Control) 2. Processing for Sensor Input 3. Processing for DIP Switch Input 4. Operation Control for Above Items 1 to 3. Compressor Operation Control, Bypass Valve Control, Fan Control and Overcurrent Control 5.
  • Page 172 TROUBLESHOOTING Part Name Function Information Power Source Indicator for Outdoor Unit PCB (Low Voltage) LED1 (Red) Normal Condition: Activated / ON Abnormal Condition: Deactivated / OFF This LED2 indicates the communication state between the outdoor unit PCB and inverter PCB. LED2 (Green) Normal Condition: Flashing...
  • Page 173 TROUBLESHOOTING c. FANM (Fan Controller) < 208/230V 60Hz > CN206 DCL1 CN207 LED202 (Yellow) DCL2 HIC1 DSW1 (L3) LED501 (Red) < 460V 60Hz > CN206 DCL1 CN207 LED202 (Yellow) DCL2 HIC1 DSW1 (L3) LED501 (Red) Part Name Function Information Power Source Indicator for the Fan Controller LED501 (Red) Normal Condition: Activated / ON...

  • Page 174: Checking Rotary Switch And Dip Switch Settings

    TROUBLESHOOTING 3.1.3 Checking Rotary Switch and DIP Switch Settings The following diagram indicates the factory settings of DSWs on PCBs in the indoor and outdoor units. When simultaneous operation control of multiple units or room thermo control is operated, the DSW setting will be different as shown below.
  • Page 175 TROUBLESHOOTING Setting the outdoor unit numbers, system numbers, and end terminal resistance are requirements for this H-LINK system. If there are combined outdoor units, set DSW6 as shown below. Combination of Base Unit Base Unit Unit A Unit B Unit C (Factory Setting) (No.0) (No.1)
  • Page 176 TROUBLESHOOTING Voltage DSW7 Setting DSW7 is used for setting of rated voltage for the outdoor unit as shown at the right. 208V 1 2 3 4 When the site power source voltage is different from the factory setting, DSW7 setting is required. 230V NOTE: 1 2 3 4...

  • Page 177: Checking Wired Controller

    TROUBLESHOOTING 3.1.4 Checking Wired Controller Wired Controller Model: CIW01 Each “Check Menu” item and its function are explained in the following table. Check Menu Item Function Check 1 Sensor condition of air conditioner will be monitored and indicated. Check 2 Sensor data of air conditioner prior to alarm occurrence will be indicated.
  • Page 178 TROUBLESHOOTING Features of Check Mode 1 No. Item Data Name No. Item Data Name Set Temp. Suction Pressure Inlet Air Temp. Control Information Discharge Air Temp. Operating Frequency Liquid Pipe Temp. I.U. Capacity Remote Thermistor Temp. O.U. Code Outdoor Air Temp. System Number (1) Gas Pipe Temp.
  • Page 179 TROUBLESHOOTING (2) Alarm History Display The Alarm History Display is accessed from the Check Menu. (1) Press and hold “Menu” and “ECO” simultaneously for 3 seconds during the normal Check Menu mode. Check 1 The Check Menu is displayed. Check 2 Alarm History Display (2) Select “Alarm History Display”...
  • Page 180 TROUBLESHOOTING (3) I.U./O.U. PCB Check (1) Press and hold “Menu” and “ECO” simultaneously for three seconds during the Check Menu normal mode. I. U./O. U. PCB Check Check Menu is displayed. Self Checking (2) Select “I.U./O.U. PCB Check” from the Check Menu and press “OK”.
  • Page 181 TROUBLESHOOTING (4) Self-Checking Self-Checking checks the wired controller and clears EEPROM (storage cell inside of the wired controller). (1) Press and hold “Menu” and “ECO” simultaneously for three seconds during the normal mode (when Check Menu unit is not operating). I.
  • Page 182 TROUBLESHOOTING (9) No Function This function is not used. 07: No Function Press “OK” to proceed. 08: Transmission Test Self Checking (10) Communication (Transmission) Circuit Test 0 7 : 0 0 0 The wired controller automatically starts to check the communication circuit. (11) Wired Controller Thermistor Test The detected temperature by the wired controller Self Checking...
  • Page 183 TROUBLESHOOTING (5) Contact Information Registration Contact information can be registered from “Contact Information”. (1) Press and hold “Menu” and “Back/Help” simultaneously for at least three seconds during the normal mode (when unit is not operating). The Test Run Menu will be displayed. (2) Select “Contact Information”...

  • Page 184: Checking Using 7-Segment Display

    TROUBLESHOOTING 3.1.5 Checking Using 7-Segment Display 1) Turn ON the main power source. Wait for more than 20 seconds to start checking. 2) Checking Items * Expansion Valve Opening * Temperature Readings from Thermistors * Number of Indoor Units Connecting in the Same System 3) Check the locations of 7-segment and push switches.
  • Page 185 TROUBLESHOOTING * Turn on All Indoor Units * All the Indoor Units Connected in the Same System Turn on the Outdoor Unit Auto-addressing Starts During auto-addressing, the following items can be checked using the outdoor unit's on-board 7-segment LED display Outdoor Unit (1) Disconnection of power supply to the indoor unit.
  • Page 186 TROUBLESHOOTING Operating conditions and each part of a system can be checked using a 7-segment display and push on the PCB1 in the outdoor unit. To Start Checking Press PSW1 for once. Press PSW1 more than 3 seconds. Check Mode (A) Outdoor Combination Unit No.
  • Page 187 TROUBLESHOOTING (C) Outdoor Unit Information Select the outdoor unit number to be displayed only for the example of Unit A Unit Indication (No.0). Unit A (No.0) Units B and C (Nos.1 and 2) show each unit number only. Unit B (No.1) Unit C (No.2) backward.
  • Page 188 TROUBLESHOOTING (D) Indoor Unit Information This information is indicated on Unit A (No. 0) only. to move backward. NOTE: Unit No. Indication For indoor unit connecting to change-over box, No.0 “ ” will be indicated next to “d”. No.1 (Example) Instance of change-over box connecting to Indoor Unit No.5;...
  • Page 189 TROUBLESHOOTING (F) Alarm Code History Information This information is indicated on Unit A (No. 0) only. 7-Segment If a history of abnormality exists, it is indicated up to a maximum of Display Data No. 15 instances in chronological order. SEG2 SEG1 1 (Latest Data) 15 (Oldest Data)

  • Page 190: Checking Alarm Code History

    TROUBLESHOOTING 3.1.6 Checking Alarm Code History Alarm code history is indicated in the following order while the Check Mode is displayed. “no01” (latest) history data ~ “no15” (oldest) history data History can display a maximum of 15 instances PSW1 in alarm occurrence order. Subject compressor when alarm/retry code is displayed.
  • Page 191 TROUBLESHOOTING (1) Register of Alarm Code History Cause of Indication of Alarm Code History Stoppage Alarm Code (Alarm Code Contents Abnormal Time Alarm or Stoppage O.U. Comp. Data Fan No. Code) Unit No. Activation of protection device Accumulated Time Abnormality transmitting between indoor units and outdoor units Accumulated Time Abnormality transmitting between inverter PCB and Accumulated Time...
  • Page 192 TROUBLESHOOTING Cause of Indication of Alarm Code History Stoppage Alarm Code (Alarm Code Contents Abnormal Time Alarm or Stoppage O.U. Comp. Data Fan No. Code) Unit No. Accumulated Time Abnormality of low compression ratio d1-11 Accumulated Time Accumulated Time Abnormality of low-pressure increase d1-12 Accumulated Time Accumulated Time...
  • Page 193 TROUBLESHOOTING (2) Deletion of Alarm Code History displayed. (All history can be deleted.) PSW2(▲) In order to delete all the history, PSW3( ) press PSW1 and PSW3 ( ) for five seconds PSW5( ) while history is displayed. PSW4(▼) PSW2(▲) PSW4(▼) PSW2(▲) PSW4(▼)
  • Page 194 TROUBLESHOOTING (A) Protection Control Code The control information during operation are displayed. The protection control code is different from the code displayed during unit operation stoppage. Code Protection Control Code Protection Control Pressure Ratio Control Pressure Ratio Decrease Retry High Pressure Increase Protection Low Pressure Increase Retry Inverter Current Protection High Pressure Increase Retry...
  • Page 195 TROUBLESHOOTING Code Category Content of Abnormality Leading Cause Incorrect Capacity Code Setting of Combination Incorrect Capacity Setting of Outdoor Unit and Excessive or Insufficient Indoor Unit Total Indoor Unit Capacity Code Incorrect Setting of Indoor Unit No. Duplication of Indoor Unit No. in same Refrigerant Group System Incorrect Indoor Unit Combination Indoor Unit is Designed for R22...
  • Page 196 TROUBLESHOOTING (C) Cause of Indoor Unit Stoppage Code Cause Code Cause Operation OFF, Power OFF Retry due to Decrease of Thermo-OFF, Discharge Gas Superheat Activation of Float Switch Alarm Retry due to Inverter Tripping Freeze Protection, Retry due to Voltage Decrease, Overheating Protection Other Retry of Inverter Instantaneous Power Failure...

  • Page 197: Emergency Operation

    TROUBLESHOOTING 3.1.7 Emergency Operation (1) Emergency Mode Operation from Wired Controller ((H,Y)VAHP144B(3,4)1CW to (H,Y)VAHP288B(3,4)1CW) If the compressor fails, an emergency operation mode is accessible by the wired controller. Even if the compressor fails, the air conditioning operation is continuously available until troubleshooting is performed.
  • Page 198 TROUBLESHOOTING NOTES: • Emergency operation is available only when the alarm codes above (*) are indicated. • The emergency operation is not available for malfunction of the inverter PCB or fan controller. • This emergency operation is not a normal operation but a temporary operation until the service people come.
  • Page 199 TROUBLESHOOTING PROCEDURE REMINDERS: • Measure the insulation resistance of the malfunctioning compressor. Do not perform the emergency operation when the insulation resistance is 0 . The other compressors may be damaged because there is a possibility that refrigerant oil is oxidized. •...
  • Page 200 TROUBLESHOOTING (b) Operation Condition < Indoor Unit Operation Capacity > The compressor is forced to stop for compressor protection under the following condition: Total Capacity of Thermo ON I.U. < 50% of O.U. Capacity and Total Capacity of Thermo ON I.U. < 90kBtu/h because the compressor is operated and stopped repeatedly.) NOTE: Thermo-ON: The outdoor unit and some indoor units are running.
  • Page 201 TROUBLESHOOTING [ at Fixed Speed Compressor Failure ] ((H,Y)VAHP072B(3,4)1CW and (H,Y)VAHP096B(3,4)1CW) fails. <Alarms Corresponding to Fixed Speed Compressor Failure> 23: Abnormality of Discharge Gas Thermistor 39: Abnormality of Running Current at Fixed Speed Compressor (a) Procedures 1. Turn OFF all the main switches of the outdoor and indoor units. failed outdoor unit will stop the operation.

  • Page 202: Troubleshooting Procedures

    TROUBLESHOOTING Troubleshooting Procedures Alarm Code Indication of Wired Controller < CIW01 > (1) Refrigerant Cycle No. (*1) (1) (2) (2) Indoor Unit No. (*1) (3) Alarm Code 01-02 (4) Unit Model Code Alarm Code: (5) Total Number of Indoor Units in the Same System as the Indoor Unit Having Trouble MODEL : F .08 AlarmRst...

  • Page 203: Troubleshooting Using Alarm Codes

    TROUBLESHOOTING 3.2.2 Troubleshooting Using Alarm Codes Alarm Activation of Protection Device (Float Switch) in Indoor Unit Code The indoor unit number (Ref. system number - I.U. number), the alarm code, the model code* , the model name* and the number of connected indoor units are displayed on the LCD. The alarm code is *1) Except for some models.
  • Page 204 TROUBLESHOOTING Action Event Cause Check Item (Turn OFF Main Switch) Clogging of drain pan. Check condensate pan. Activation of High Drain Drainage Remove foreign particles Check drainage by clogging drain pipe. Float Switch Level Up-Slope clogging condensate pouring water. Drain Piping Condensate pipe.
  • Page 205 TROUBLESHOOTING Alarm Activation of Protection Device in Outdoor Unit Code The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 206 TROUBLESHOOTING Action Event Cause Check Item (Turn OFF Main Switch) Clogging of Heat Remove clogging. Exchanger? Check for dust on Remove dust. air filter. Activation of Insufficient Airflow to High Pressure Heat Exchanger Check for any obstacles Switch due to (Outdoor Heat Exchanger at inlet or outlet of Remove obstacles.
  • Page 207 TROUBLESHOOTING Alarm Abnormal Communication between Indoor Units and Outdoor Units Code The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD, and the indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 208 TROUBLESHOOTING O.U. PCB: Outdoor Unit PCB I.U. PCB: Indoor Unit PCB for wall mounted Is SW1 of PCB set to “ ” Set it correctly. (Nonpolar Setting)? *2) Is LED3 (yellow) Is LED3 (yellow) ON even if connector Faulty I.U. PCB. on I.U.
  • Page 209 TROUBLESHOOTING Action Event Cause Check Item (Turn OFF Main Switch) Measure voltage with Power Failure of No Power Supply Supply power. tester. Remove cause of Check for breakage short circuit. Short Circuit between Wires of insulation. Replace fuse and/or I.U./O.U. PCB if faulty. Remove cause of Measure insulation short circuit to ground.
  • Page 210 TROUBLESHOOTING *1): If the end terminal resistance (DSW10) is set to OFF for H-LINK connection, set the end terminal resistance to ON when CN2 is disconnected. Set the end terminal resistance to OFF when CN2 is reconnected. *2): Communication setting for the wall mounted: (SW1) SW1 for communication on the indoor unit PCB is set to Item Setting Position...
  • Page 211 TROUBLESHOOTING Alarm Abnormal Communication between Inverter PCB and Outdoor Unit PCB Code Alarm Abnormal Communication between Inverter PCB and Fan Controller Code The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD.
  • Page 212 TROUBLESHOOTING Action Event Cause Check Item (Turn OFF Main Switch) Between O.U. PCB, Disconnected Check continuity of Inverter PCB and Replace or repair Wires, wires. Fan Controller wires, tighten screws Contact Failure or Check for loose or correct wires. Incorrect screw connections.
  • Page 213 TROUBLESHOOTING Alarm Abnormality of Power Source Phase Code The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 214 TROUBLESHOOTING Abnormal Inverter Voltage Alarm Code The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 215 TROUBLESHOOTING Abnormal Fan Controller Voltage Alarm Code The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 216 TROUBLESHOOTING Alarm Decrease in Discharge Gas Superheat Code The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 217 TROUBLESHOOTING Action Event Cause Check Item (Turn OFF Main Switch) Ref. cycle does not match Check ref. cycle and Repair wiring correctly. electrical system. electrical system. Check operating Charge correct amount Overcharged Refrigerant pressures. of refrigerant. Check expansion valve. Replace expansion valve Faulty Expansion Valve (Refer to Section 4.2.1.6.) if faulty.
  • Page 218 TROUBLESHOOTING Alarm Increase in Discharge Gas Temperature at the Top of Compressor Code The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 219 TROUBLESHOOTING Action Event Cause Check Item (Turn OFF Main Switch) Ref. cycle does not match Check ref. cycle and Repair wiring. electrical system. electrical system. Charge correct amount Undercharge of Refrigerant Check pressures. of refrigerant. Check expansion valve. Replace expansion valve Faulty Expansion Valve (Refer to Section 4.2.1.6.) if faulty.
  • Page 220 TROUBLESHOOTING Alarm Abnormal Communication between Outdoor Units Code The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 221 TROUBLESHOOTING Alarm Incorrect Outdoor Unit Address Setting Code The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 222 TROUBLESHOOTING Abnormality of Thermistor for Indoor Unit Inlet Air Temperature Alarm Code (Inlet Air Thermistor) The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 223 TROUBLESHOOTING Abnormality of Thermistor for Indoor Unit Outlet Air Temperature Alarm Code (Outlet Air Thermistor) The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 224 TROUBLESHOOTING Abnormality of Thermistor for Liquid Refrigerant Pipe Temperature Alarm Code at Indoor Unit Heat Exchanger (Freeze Protection Thermistor) The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 225 TROUBLESHOOTING Abnormality of Thermistor for Gas Refrigerant Pipe Temperature Alarm Code at Indoor Unit Heat Exchanger (Gas Pipe Thermistor) The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 226 TROUBLESHOOTING Abnormality of Thermistor for Outside Air Temperature Alarm Code (for Ducted (Medium Static) with EconoFresh Kit) The indoor unit number and the alarm code are displayed on the LCD. The alarm code is displayed on the 7-segment display of the outdoor unit PCB. the thermistor is detected during a heating or cooling operation.
  • Page 227 TROUBLESHOOTING Abnormality of Remote Thermistor Alarm Code (for DOAS Unit) The indoor unit number and the alarm code are displayed on the LCD. The alarm code is displayed on the 7-segment display of the outdoor unit PCB. the thermistor is detected during a heating, cooling or fan operation. Thermistor for Controller Is I.U.
  • Page 228 TROUBLESHOOTING Abnormality of Thermistor for Controller Alarm Code (for DOAS Unit) The indoor unit number and the alarm code are displayed on the LCD. The alarm code is displayed on the 7-segment display of the outdoor unit PCB. the thermistor is detected during a heating or cooling operation. Is resistance of Thermistor for Controller Failure of Thermistor for Controller between 0.24kΩ...
  • Page 229 TROUBLESHOOTING Activation of Protection Device for Indoor Fan Motor Alarm Code (Indoor Unit with DC Motor) The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 230 TROUBLESHOOTING PC4-No.2 LED5 VDC- VCC15 GND VCC05 VCC13 < Checking for Fan Motor > Remove the connector of the fan motor and measure the resistance value between each of the pins (twice). Check whether the resistance value is over or not according to the table shown below. When performing the second measuring, make sure to change the tester (Red/ Black).
  • Page 231 TROUBLESHOOTING Activation of Protection Device for Indoor Fan Motor Alarm Code (Ducted (Medium Static and Slim) Type) The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 232 TROUBLESHOOTING PCB2 LED1 CN201 PCN201 < Checking for Fan Motor > Remove the connector of the fan motor and measure the resistance value between each of the pins (twice). Check whether the resistance value is over or not according to the table shown below. When performing the second measuring, make sure to change the tester (Red/ Black).
  • Page 233 TROUBLESHOOTING Activation of Protection Device for Indoor Fan Motor Alarm Code (Wall Mount Type) The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code* the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 234 TROUBLESHOOTING GND1 PCN550 PC4-No.2 VCC12 VCC15 VCC05 LED1 VDC- PCN500 < Checking for Fan Motor > Remove the connector of the fan motor and measure the resistance value between each of the pins (twice). Check whether the resistance value is over or not according to the table shown below. When performing the second measuring, make sure to change the tester (Red/ Black).
  • Page 235 TROUBLESHOOTING Activation of Protection Device for Indoor Fan Motor Alarm Code ( Indoor Unit with AC Motor ) The indoor unit number (refrigerant cycle number - address number ), the alarm code, the model code* , the model name* and the number of connected indoor units are displayed on the LCD. The indoor unit number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
  • Page 236 TROUBLESHOOTING Alarm Is connector CN7 Connect it correctly. of O.U. PCB abnormal? Is 5 VDC applied between #1 and #3 of connector Failure of O.U. PCB CN7 of O.U. PCB? Is voltage under 0.1 VDC or over 4.9VDC between Failure of O.U. PCB #2 and #3 of connector CN7 of O.U.
  • Page 237 TROUBLESHOOTING Alarm Outdoor Unit Is thermistor THM7 Ambient Air Thermistor connected to THM7 Connect them. (Ta, color: red) of (THM7) O.U. PCB? Is resistance of THM7 Failure of between 0.2kΩ and Thermistor 840kΩ? Failure of O.U. PCB Action Event Cause Check Item (Turn OFF Main Switch) Replace thermistor...
  • Page 238 TROUBLESHOOTING Alarm Is setting of DSW2 Set it correctly. on O.U. PCB correct? Model Are thermistors THM8 and THM9 (for discharge gas temp.) connected to Connect them. THM8 (Td1) and THM9 (Td2) on O.U. PCB? =200kΩ (When T=77 F (25 C), R =200kΩ) Is resistance of...
  • Page 239 TROUBLESHOOTING Alarm Are thermistors connected to THM10 (Te) or THM17 (Tchg) Connect them. on O.U. PCB? Is resistance of thermistors THM10 and TMH17 between Failure of Thermistor 0.2kW and 840kW? Failure of O.U. PCB Thermistor Resistance (kΩ) 20.5 12.5 95 104 113 122 131 140 (-15) (-10) (-5) (0) (5) (10) (15) (20) (25) (30) (35) (40) (45) (50) (55) (60) Ambient Temperature ( Thermistor Characteristics...
  • Page 240 TROUBLESHOOTING Alarm (Tg/Tbg) Are thermistors connected to THM11 (Tg) or THM23 (Tbg) Connect them. on O.U. PCB? Is resistance of thermistors THM11 and THM23 between Failure of Thermistor 0.2kΩ and 840kΩ? Refer to "Alarm Code 24" for thermistor resistance. Failure of O.U. PCB Action Event Cause...
  • Page 241 TROUBLESHOOTING Alarm Is connection CN8 Connect it correctly. of O.U. PCB abnormal? Is 5 VDC applied between #1 and #3 of connector Failure of O.U. PCB CN8 of O.U. PCB? Is voltage under 0.1 VDC or over 4.9 VDC between Failure of O.U.
  • Page 242 TROUBLESHOOTING Alarm Are #1-#6 of DSW2 on Set capacity of O.U. PCB. O.U. PCB set incorrectly? Are #1-#4 of DSW3 on Set capacity of I.U. PCB. I.U. PCB set incorrectly? Are the setting of DSW1 and RSW1 on O.U. PCB and setting Set them correctly.
  • Page 243 TROUBLESHOOTING Alarm Faulty Is LED1 on PCB of Check power supply outdoor unit B or C Turn ON power supply. of outdoor unit. turned ON? Good Is fuse of O.U. PCB Check cause and blown? replace fuse. Replace PCB of outdoor unit B or C.
  • Page 244 TROUBLESHOOTING Alarm Alarm SM-16007...
  • Page 245 TROUBLESHOOTING Alarm Is AC208V or 230V applied Faulty O.U. PCB to A* during stoppage? Are connections Check wiring connections. for PSH loose? Faulty PSH Is AC220V output from Faulty Step-Down secondary terminals of Transformer (TF) step-down transformer (TF)? Is AC220V applied to A* Faulty O.U.
  • Page 246 TROUBLESHOOTING Action Event Cause Check Item (Turn OFF Main Switch) Starting Outdoor Unit at Activation of Refer to Alarm Code Alarm Code History: Picking up Circuit Activation of Picking up “02” and “09” “02” and “09” before “38”. Circuit for Protection for Protection Abnormality of Check voltage is...
  • Page 247 TROUBLESHOOTING Alarm Check wiring connection Is CMC2 turned ON? around O.U. PCB. Check fuses and wiring Does fixed speed between CMC2 and compressor operate? fixed speed compressor. Is running current Is connector CN80 of indicated on 7-segment current transformer (CT2) Connect it correctly.
  • Page 248 TROUBLESHOOTING Action Event Cause Check Item (Turn OFF Main Switch) Excessively High or Operate within Low Voltage of 208-230V + 10% Power Source 460V + 10% Excessively Large Running Current of Imbalance Between Adjust voltage between Compressor Motor Power Source Phases each phase.
  • Page 249 TROUBLESHOOTING Alarm Set the following Has PCB of outdoor unit DIP switches of A, B or C been replaced? replaced O.U. PCB correctly. DSW2, DSW3, DSW6, DSW7, DSW10 Is the operating line Correctly connect between outdoor units the operating line and connected correctly? reset the power source.
  • Page 250 TROUBLESHOOTING Alarm Faulty Check the power source Is LED1 turned ON on PCB Turn ON the power source. of outdoor unit. of outdoor unit B or C? Good Is fuse on O.U. PCB Check the cause and blown? replace it. Replace the PCB of outdoor unit B or C.
  • Page 251 TROUBLESHOOTING Alarm Set following DIP switches of Has PCB of outdoor unit replaced O.U. PCB correctly. A, B or C been replaced? DSW2, DSW3, DSW6, DSW7, DSW10 NOTE: Dip switch setting of PCB2 is not required. (All settings are OFF.) Is the operating line Correctly connect the operating between PCB1 and PCB2...
  • Page 252 TROUBLESHOOTING Alarm Does inverter operate? Check inverter. Check compressor and Does compressor operate? power cable. Is reversing valve spindle Replace reversing valve if faulty. installed at middle position? Are high pressure sensor and Replace high pressure sensor low pressure sensor normal? or low pressure sensor if faulty.
  • Page 253 TROUBLESHOOTING Alarm Is there leak from Replace solenoid valve (SVA) solenoid valve (SVA)? if faulty. Is the reversing valve internal Replace reversing valve if faulty. slide not fully shifted? Replace low pressure sensor Is low pressure sensor normal? if faulty. Check that indoor/outdoor intake air temperature is not too high.
  • Page 254 TROUBLESHOOTING Alarm Is there leakage from Replace solenoid valve (SVA) solenoid valves (SVA)? if faulty. Is outdoor unit stop valve closed? Open stop valve. Check connection of circuit Is high pressure sensor normal? board connector. Replace high pressure sensor if faulty. Check O.U.
  • Page 255 TROUBLESHOOTING Alarm Is amount of refrigerant correct? Correctly charge refrigerant. Is outdoor stop valve open? Open the stop valve. Is refrigerant leaking? Repair leaks. Replace suction pressure sensor Is suction pressure sensor normal? if faulty. Check connection of connectors, O.U. PCB and Are electronic expansion valves electronic expansion valves.
  • Page 256 TROUBLESHOOTING Action Event Cause Check Item (Turn OFF Main Switch) Check charged ref. Repair leakage and Shortage of Refrigerant volume or check for correctly charge ref. leakage. Closed Stop Valve Check stop valve. Open stop valve. Abnormal Low or High Check connector Replace pressure Pressure Sensor...
  • Page 257 TROUBLESHOOTING Alarm Which is cause of "2" stoppage " " of Refer to next page. troubleshooting by 7-segments display, Restart operation. "2" or "4"? "4" Yes (Transistor Module is normal.) Is compressor current larger than activation current? *1) Is discharge pressure high? Smaller than activation current.
  • Page 258 TROUBLESHOOTING Alarm Turn OFF power and disconnect U, V, W from Faulty compressor terminals. Restart operation. Check Replace Turn ON #1 of DSW1 on Does it trip soon? inverter PCB *1) inverter PCB. *1) inverter PCB to cancel It trips 0A detection and restart.
  • Page 259 TROUBLESHOOTING Alarm Restart operation. Inverter PCB is faulty. Compressor stops Replace it. *2) immediately at approx.18Hz. How is compressor operation when restarted? Compressor does not operate. “P17” indication appears. *1) Is there break in Replace compressor. coil for compressor? Is output of inverter PCB correct? *2) Check transistor module.
  • Page 260 TROUBLESHOOTING Alarm No (It trips after a certain period.) Restart operation. To Next Page Does it trip soon? (Itc=21) (It trips immediately.) Is power line connected Connect power line to to Current Transformer (CT2)? Current Transformer (CT2). (Itc=1, 12) Turn OFF power, disconnect Normal U, V, W from compressor Failure of inverter PCB.
  • Page 261 TROUBLESHOOTING Is supply voltage O.U.: Outdoor Unit AC 208/230V+10% I.U.: Indoor Unit or AC 460V+10%? In case of 208/230V 60Hz: Check capacity Is voltage higher than 177V during operation? and wiring of In case of 460V 60Hz: power source. Is voltage higher than 391V during operation? In case of 208/230V 60Hz: Is voltage higher than 177V at any time? In case of 460V 60Hz:...
  • Page 262 TROUBLESHOOTING Surge Absorber (SA) Surge Absorber (SA) Surge Absorber (SA) SM-16007...
  • Page 263 TROUBLESHOOTING Alarm Normal Restart operation. Check thermistor. Replace inverter PCB. *1) Does it trip soon? Faulty Replace thermistor. Is heat exchanger of Remove clogging. outdoor unit clogged? Normal Check thermistor. Replace inverter PCB. *1) Faulty Replace thermistor. SM-16007...
  • Page 264 TROUBLESHOOTING Alarm Turn OFF power (LED201 OFF) and restart operation. Inverter PCB is normal. Is alarm code “55” indicated Check noise reduction filter. *1) again? Replace inverter PCB. Surge Absorber (SA) Surge Absorber (SA) Surge Absorber (SA) 3-100 SM-16007...
  • Page 265 TROUBLESHOOTING Alarm Turn OFF power and disconnect U, V, W from fan motor terminals. Turn ON #1 of DSW on fan controller Check fan motor. to cancel 0A detection and restart the operation. Does it trip? Yes, it trips. Remove clogging or Is heat exchanger of replace heat exchanger.
  • Page 266 TROUBLESHOOTING Alarm Restart operation. Does it trip soon? Replace fan controller. *2) Is silicon grease applied all over Apply silicon grease all over contact surface of transistor module contact surface of transistor and radiation fin? module and radiation fin *1) Is heat exchanger of Remove clogging.
  • Page 267 TROUBLESHOOTING Alarm Which is cause of "2" stoppage " " of troubleshooting by Refer to next page. 7-segments display, Restart operation. "2" or "4"? "4" Cause of fan controller overload Yes (Fan controller is normal.) Is fan controller current larger than activation current? *1) Does fan stop due to foreign matter?
  • Page 268 TROUBLESHOOTING Alarm Turn OFF power and disconnect U, V, W from Faulty fan controller terminals. Restart operation. Replace Check Turn ON #1 of DSW on Does it trip soon? fan controller. *1) fan controller *1) fan controller to cancel 0A It trips detection and restart the Normal...
  • Page 269 TROUBLESHOOTING Alarm Restart operation. Fan controller is faulty. Fan motor stops Replace fan controller. immediately. How is fan motor operation when restarted? Fan motor does not operate. Abnormal Is fan motor coil Check fan motor. normal? Normal Fan controller is faulty. Replace fan controller.

  • Page 270: Abnormalities Of Devices

    TROUBLESHOOTING 3.2.3 Abnormalities of Devices Other Abnormalities of Devices Abnormalities If there is no abnormality (Alarm Code) indicated on the wired controller, and normal operation is not available, take necessary action according to the following procedures. Action Event Cause Check Item (Turn OFF Main Switch) Disconnected Measure coil...
  • Page 271 TROUBLESHOOTING Other Abnormalities of Devices Abnormalities Action Event Cause Check Item (Turn OFF Main Switch) Check Setting Condition of "Thermistor of Wired Controller" with Optional Setting * Setting and Control "00": Control by Indoor Thermistor for If the thermistor of Suction Air Incorrect Optional wired controller...
  • Page 272 TROUBLESHOOTING Other Abnormalities of Devices Abnormalities Action Event Cause Check Item (Turn OFF Main Switch) Failure of Failure of Thermistor Replace or correctly Check Thermistor in Check thermistor in Discharge connect wires Self-Checking mode *2). self-checking mode *2). Air Temp. Disconnected if abnormal.
  • Page 273 TROUBLESHOOTING Other Abnormalities of Devices Abnormalities Action Event Cause Check Item (Turn OFF Main Switch) Obstacle at Outdoor Fan Check obstacles. Remove obstacles. Outdoor Fan does Not Operate even when Compressor Wait for switching of If the reversing valve is Preparatory State for is Operating reversing valve.

  • Page 274: Procedures For Checking

    TROUBLESHOOTING Procedures for Checking 3.3.1 Self-Checking of PCBs using Wired Controller Refer to Section 3.1.4 “Checking Wired Controller” 3.3.2 Self-Checking of Wired Controller Refer to Section 3.1.4 “Checking Wired Controller” 3-110 SM-16007...

  • Page 275: Test Run

    TROUBLESHOOTING Test Run Turn OFF all the power source switches. Use a tester and make sure that all the switches are turned OFF. Before the test run, check that the unit is appropriately installed according to the Installation and Maintenance Manual.

  • Page 276: Test Run Using Wired Controller

    TROUBLESHOOTING 3.4.1 Test Run Using Wired Controller Menu (1) Wired Controller (CIW01) Button Menu On/Off (1) Turn ON the power source of the indoor and outdoor units. Back/Help ECO (2) Set the TEST RUN mode with the wired controller. (2) Set the TEST RUN mode with the wired zone controller. On/Off Button Back/Help...
  • Page 277 TROUBLESHOOTING button. (4) Press “On/Off” switch. Normal The run test operation will be started. The operation mode, the airflow volume, the airflow direction and the test run time can be set on the Test Run screen. and the run test time can be set on the Test Run screen. Select the item by pressing “...

  • Page 278: Test Run From Outdoor Unit Side

    TROUBLESHOOTING 3.4.2 Test Run from Outdoor Unit Side The procedures for the test run from the outdoor unit side are indicated below. Setting of this DIP switch is possible with the power source ON. Setting of DIP Switch (Factory Setting) DSW4 Switch for Setting of Service Operation and Function 1.
  • Page 279 TROUBLESHOOTING DIP Switch Setting Operation Remarks 1. Setting 1. When DSW4-4 is ON during * Do not repeat compressor ON/OFF *Compressor Manual OFF: compressor operation, frequently. Set DSW4-4 ON. the compressor stops operating immediately and the indoor unit is under the condition of Thermo- OFF.

  • Page 280: Checking The Test Run

    TROUBLESHOOTING 3.4.3 Checking the Test Run (1) Indoor and Outdoor Fan (2) Power Supply Voltage < Voltage Change > Check the power supply. If the power supply is abnormal, contact the electric Initial Voltage power company. Operating Voltage Usually, voltage drop will occur when starting the In order to protect the device, comply with the following Starting Voltage normal range of the power supply voltage.

  • Page 281: Checklist For Refrigerant System

    TROUBLESHOOTING 3.4.4 Checklist for Refrigerant System The system data can be checked on the 7-segment display of the outdoor unit PCB during the test run and the troubleshooting. However, it may take time for checking because the operation cycle changes depending on the operating condition.
  • Page 282 TROUBLESHOOTING (3) Check Item after Sampling Data a. Cooling Operation (It is applicable when the outdoor temperature is higher than 59°F(15°C).) Check Item Standard Causes Result 1 Is fan actually running when • Fan Motor Failure • O.U. PCB Failure •...

  • Page 283: Reset For Accumulated Operation Time Of Compressor 1-2 (Cuj1-Cuj2)

    TROUBLESHOOTING 3.4.5 Reset for Accumulated Operation Time of Compressor 1-2 (cUJ1-cUJ2) There are accumulated operation times of the compressor after maintenance and after starting operation. The following procedures show how to reset the accumulated operation time of the compressor after maintenance.

  • Page 285: Maintenance

    MAINTENANCE 4. Maintenance SM-16007...

  • Page 286: Maintenance Of Outdoor Unit

    MAINTENANCE 4.1 Maintenance of Outdoor Unit TURN OFF all power source switches. 4.1.1 Removing Front Service Cover (1) Removing Service Cover (a) Remove six screws from the service cover. (b) Put your hands on the groove at the bottom of the service cover. Then, lift the cover up slightly and draw it forward.

  • Page 287: Attaching Front Service Cover

    MAINTENANCE TURN OFF all power source switches. 4.1.2 Attaching Front Service Cover (1) Attaching Front Cover (a) Insert the hooks of the front cover into the square holes of the side cover. (Refer to Fig. 1) (b) Fix the front cover with the screws. Tool Phillips Screwdriver Front Cover...

  • Page 288: Removing Top Cover And Upper Cover

    MAINTENANCE TURN OFF all power source switches. 4.1.3 Removing Top Cover and Upper Cover (1) Remove the 28 screws securing the top cover T, R, L, and FB. Tool Phillips Screwdriver Top Cover L Top Cover FB Top Cover T Top Cover R Top Cover FB Air Grille...
  • Page 289 MAINTENANCE TURN OFF all power source switches. (2) Remove fourteen screws securing the upper cover. (3) Lift up the upper cover. When removing the upper cover, make sure that it does not come in contact with the propeller fan. Tool Phillips Screwdriver Upper Side Rear Side...

  • Page 290: Removing Protection Net

    MAINTENANCE TURN OFF all power source switches. 4.1.4 Removing Protection Net (1) Remove seven screws securing the protection net. (2) Pull out the protection net from the bridge of the upper rear support to remove it. Tool Phillips Screwdriver Screws for Screws for Protection Net Protection Net...

  • Page 291: Removing Electrical Box Cover

    MAINTENANCE TURN OFF all power source switches. 4.1.5 Removing Electrical Box Cover (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. (2) Remove two screws for the electrical box 1 cover and loosen two securing screws . (3) Push the electrical box 1 cover up and remove the electrical box cover by drawing it forward from the securing screws .

  • Page 292: Removing Electrical Box

    MAINTENANCE TURN OFF all power source switches. 4.1.6 Removing Electrical Box (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. (2) Remove the electrical box 1 cover and electrical box 2 cover according to Section 4.1.5 “Removing Electrical Box Cover”.

  • Page 293: Removing Electrical Box Support And Reinforcement Support

    MAINTENANCE TURN OFF all power source switches. 4.1.7 Removing Electrical Box Support and Reinforcement Support (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. (2) Remove the electrical box according to Section 4.1.6 “Removing Electrical Box”. (3) Remove the screws securing the reinforcement support.

  • Page 294: Removing Transformer Box Cover

    MAINTENANCE TURN OFF all power source switches. 4.1.8 Removing Transformer Box Cover [460V] (H,Y)VAHP072, 096B41CW Only (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. (2) Remove four screws from the transformer box cover (upper side) and remove the transformer box cover (upper side).
  • Page 295 MAINTENANCE TURN OFF all power source switches. 4.1.9 Removing Transformer Box [460V] (H,Y)VAHP072, 096B41CW Only (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. (2) Remove the reinforcement support according to Section 4.1.7 “Removing Electrical Box Support and Reinforcement Support”.

  • Page 296: Removing Air Grille

    MAINTENANCE TURN OFF all power source switches. 4.1.10 Removing Air Grille Remove eight screws securing the air grille. Remove the air grille. NOTE: Tool Phillips Screwdriver Air Grille Screws for Air Grille Top Cover 4-12 SM-16007...

  • Page 297: Removing Outdoor Fan Motor

    MAINTENANCE TURN OFF all power source switches. 4.1.11 Removing Outdoor Fan Motor (1) Remove the top cover with the air grille according to Section 4.1.3 “Removing Top Cover and Upper Cover”. Adjustable Wrench, Puller, Phillips Tool Screwdriver, Wire Cutter, Box Wrench Air Grille Upper Cover Top Cover...
  • Page 298 MAINTENANCE TURN OFF all power source switches. (3) Removing Wire (a) Remove the service cover and the electrical box 1 cover according to Section 4.1.1 “Removing Front Service Cover” and Section 4.1.5 “Removing Electrical Box Cover”. (4) Remove four screws securing the motor, and remove the motor. (H,Y)VAHP072, 096B(3,4)1CW: M5 (5) When reassembling the outdoor fan, perform the procedures for removal in reverse.

  • Page 299: Removing Compressor

    MAINTENANCE TURN OFF all power source switches. 4.1.12 Removing Compressor Recover the refrigerant using standard EPA procedures and external equipment. In other instances, recover the refrigerant before starting the work, and turn OFF the power source of the unit. NOTE: stopping the unit because of the high temperature.
  • Page 300 MAINTENANCE TURN OFF all power source switches. (4) Release the bind lace of the RC cover for removal. NOTES: 1. When removing the RC cover, be careful not to deform the piping around the cover. The braze joint may become damaged due to pipe deformation. 2.
  • Page 301 MAINTENANCE TURN OFF all power source switches. (5) Remove the terminal cover for the compressor and disconnect the wiring to the compressor terminals. Match the terminal numbers with the mark band numbers when reassembling. If the wiring is connected incorrectly, the compressor may be damaged due to reverse rotation. NOTES: 1.
  • Page 302 MAINTENANCE TURN OFF all power source switches. Check that the pressure inside the pipe is equal to the atmospheric pressure. Cut the pipe at the closer position to the compressor from the braze joint. After cutting, remove the pipe from the brazing part of the compressor.
  • Page 303 MAINTENANCE TURN OFF all power source switches. (9) Remove three nuts securing the compressor and remove the compressor. NOTES: 1. When removing the compressor, be aware that it does not come in contact with surrounding pipes. If contacted, pipes may become deformed. 2.
  • Page 304 MAINTENANCE TURN OFF all power source switches. (10) Take out the remaining refrigerant oil in the compressor from the discharge pipe, and measure the oil quantity. This procedure should be performed for the constant speed compressor or the inverter compressor replacement. NOTES: 1.
  • Page 305 MAINTENANCE TURN OFF all power source switches. (11) Mount the new compressor. When attaching the nut at the front side, pay attention not to deform the discharge piping. Perform the brazing according to the following order: (c) Suction Pipe NOTES: 1.
  • Page 306 MAINTENANCE TURN OFF all power source switches. (12) Wind the crankcase heater around the compressor. Crankcase heater mounting position: Back to the original setting (Refer to Section 4.1.12 (6)) (13) Attach the RC cover. (14) Reconnect all wires in the original positions. ) without coming in contact with the power line and the piping.
  • Page 307 MAINTENANCE TURN OFF all power source switches. NOTE: Ensure that all wires do not come in contact with the compressor, piping or plate edges. If there are Fix the soundproof cover firmly Remove Td thermistor and to protect the compressor from PSH from slotted part of RC cover right side.

  • Page 308: Replacing Refrigerant Oil

    MAINTENANCE TURN OFF all power source switches. 4.1.13 Replacing Refrigerant Oil 4.1.13.1 Replacing Refrigerant Oil (No Blockage in Return Oil Circuit) (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. (2) Close (A) high/low pressure gas stop valve and (B) liquid stop valve. access port.
  • Page 309 MAINTENANCE TURN OFF all power source switches. 4.1.13.2 Replacing Refrigerant Oil (Blockage in Return Oil Circuit) and Replacing Return Oil Circuit (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. (2) Remove the electrical box, wirings, electrical box support and transformer box (460V only) according to Section 4.1.6, 4.1.7 and 4.1.9.
  • Page 310 MAINTENANCE TURN OFF all power source switches. (5) Remove (G) solenoid valve coil connected to (H) solenoid valve body of the return oil circuit according to Section 4.1.14.2 “Removing Solenoid Valve Coil”. (6) Cut off (I) return oil circuit connecting with (J) accumulator pipe at the cutting position indicated in the After that, remove remaining return oil circuit inside of (L) brazing for return oil circuit.
  • Page 311 MAINTENANCE TURN OFF all power source switches. (8) Cover the hole of (L) brazing for return oil circuit using tape. Connect a charging hose to (M) brazing for oil separator outlet. Then, charge nitrogen (22 psi (0.15 separator, applying pressure. NOTE: In an instance where the unit has two return oil circuits and two oil separators, collect the refrigerant oil from one oil separator and then from the other.

  • Page 312: Removing Coils

    MAINTENANCE TURN OFF all power source switches. 4.1.14 Removing Coils SVA: Solenoid Valve Coil SVB: Solenoid Valve Coil SVC: Solenoid Valve Coil SVX: Solenoid Valve Coil RVR2: Reversing Valve Coil MV1: Expansion Valve Coil MV2: Expansion Valve Coil MVB: Expansion Valve Coil RVR2 <...
  • Page 313 MAINTENANCE TURN OFF all power source switches. 4.1.14.1 Removing Expansion Valve Coil (MV1, MV2, MVB) (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. Remove the expansion valve coil bracket from the expansion valve slot. Then, pull the coil upward. •...
  • Page 314 MAINTENANCE TURN OFF all power source switches. (3) For replacing the expansion valve coil, press the coil into the expansion valve slot by turning the coil. If an excessive force is applied to the coil, the coil bracket may become damaged. As a result, the coil NOTE: The expansion valve coil should be tightened to 44.3 lbf ft (60 N...
  • Page 315 MAINTENANCE TURN OFF all power source switches. 4.1.14.3 Removing Solenoid Valve (SVA, SVB, SVC, SVX) (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. (2) Close gas stop valve and liquid stop valve. (3) Recover refrigerant in the outdoor unit from low pressure access port and high pressure access port. Ensure that the pressure does not increase at this time.
  • Page 316 MAINTENANCE TURN OFF all power source switches. 4.1.14.4 Removing Reversing Valve Coil (RVR2) (1) Remove one screw securing the reversing valve coil with a Phillips screwdriver. (2) Remove the reversing valve coil. Tool Phillips Screwdriver Reversing Valve Coil Screw This is the unit front view. 4-32 SM-16007...
  • Page 317 MAINTENANCE TURN OFF all power source switches. 4.1.14.5 Removing Reversing Valve (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. (2) Remove the electrical box, wirings and electrical box support according to Section 4.1.6 “Removing Electrical Box.”...

  • Page 318: Removing Stop Valve

    MAINTENANCE TURN OFF all power source switches. 4.1.15 Removing Stop Valve Before starting this work, recover the refrigerant into a recovery cylinder from the system, and turn OFF the power source of the unit. (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. (2) When removing the (A) gas stop valve, cover the stop valves with a wet cloth for cooling and then unbraze.

  • Page 319: Removing High Pressure Switch, High Pressure Sensor, Low Pressure Sensor And Thermistor

    MAINTENANCE TURN OFF all power source switches. 4.1.16 Removing High Pressure Switch, High Pressure Sensor, Low Pressure Sensor and Thermistor (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. (2) High Pressure Switch (PSH1 and PSH2), High Pressure Sensor, Low Pressure Sensor and Thermistor Tool Adjustable Wrench Tbg Thermistor...
  • Page 320 MAINTENANCE TURN OFF all power source switches. 4.1.16.1 Removing High Pressure Switch (PSH1, PSH2) (1) Recover refrigerant into proper refrigerant recovery cylinder. (3) Remove the high pressure switch from the unbrazing segment of the discharge pipe using a torch. NOTES: 1.

  • Page 321: Removing Thermistor For Liquid Pipe

    MAINTENANCE TURN OFF all power source switches. 4.1.17 Removing Thermistor for Liquid Pipe (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. (2) Remove the electrical box cover according to Section 4.1.5 “Removing Electrical Box Cover”. (3) Remove the CORK TAPE.

  • Page 322: Removing Thermistor For Ambient Temperature

    MAINTENANCE TURN OFF all power source switches. 4.1.18 Removing Thermistor for Ambient Temperature (1) Remove the front service cover according to Section 4.1.1 “Removing Front Service Cover”. (2) Remove the electrical box cover according to Section 4.1.5 “Removing Electrical Box Cover”. (3) Remove the top cover and upper cover according to Section 4.1.3 “Removing Top Cover and Upper Cover”.

  • Page 323: Removing Other Electrical Components

    MAINTENANCE TURN OFF all power source switches. 4.1.19 Removing Other Electrical Components NOTES: 1. Apply conductive heat transfer paste or silicon grease (Service Part No.: P22760) slightly over the contact 2. Match the terminal numbers with the mark band numbers when reassembling. If incorrectly connected, malfunction may occur or the electrical components may be damaged.
  • Page 324 MAINTENANCE TURN OFF all power source switches. 4.1.19.1 Removing PCB1 and Electrical Components for Electrical Box (1) Remove all the connectors for wiring at PCB1. and pull it out to remove. (1) Remove all the wirings connected with the electrical components. opening.
  • Page 325 MAINTENANCE TURN OFF all power source switches. Phillips Screwdriver, Tool Long-Nose Pliers, Pliers (H,Y)VAHP***B31CW Interior of Electrical Box 1 With PCB1 Plate Without PCB1 Plate B (Screws for PCB1 Securing Plate) CMC1 CMC1 FANM FANM PCB1 FFB1 FFB1 PCB2 PCB2 PCB1 Plate A (PCB1 Securing Holder) (11 Pieces)
  • Page 326 MAINTENANCE TURN OFF all power source switches. Phillips Screwdriver, Tool Long-Nose Pliers, Pliers (H,Y)VAHP***B41CW Interior of Electrical Box 1 With PCB1 Plate Without PCB1 Plate B (Screws for PCB1 Securing Plate) DCL1 FANM1 FANM1 DCL1 CMC1 CMC1 PCB1 ZNR1 ZNR1 ZNR2 ZNR2 FFB1...
  • Page 327 MAINTENANCE Turn OFF all power source switches. 4.1.19.2 Removing Inverter PCB (PCB2) disconnect the wirings for U and V from the current sensor. (3) After removing three M3 screws, remove the bushes and collars from the inverter PCB (PCB2). When reassembling the inverter PCB (PCB2), the bushes and collars should be secured correctly.
  • Page 328 MAINTENANCE Turn OFF all power source switches. W on the transistor module. (2) Remove six screws securing the diode module and transistor module. Then, remove the diode module and transistor module. NOTE: positions, with the letters on the inverter PCB on the side. NOTES: 1.
  • Page 329 MAINTENANCE Turn OFF all power source switches. 4.1.19.4 Removing Fan Controller Before this work, remove the service cover according to Section 4.1.1 “Removing Front Service Cover”. [208/230V] CN206, CN207, R, S, T, U, V, W [460V] (2) Remove nine screws securing the fan controller so that the fan controller can be removed. NOTES: a malfunction of the fan controller may occur.
  • Page 330 MAINTENANCE TURN OFF all power source switches. (3) Install the electrical box using reverse procedures. NOTES: 1. Check to ensure that the tube end of the waterproof vinyl pipe and the connectors are in the 2. Secure the wiring connecting each electrical part and the electrical box with a plastic band to avoid direct contact with the compressor, piping, and plate edges.

  • Page 331: Removing Transformer

    MAINTENANCE TURN OFF all power source switches. 4.1.20 Removing Transformer [460V] (H,Y)VAHP***B41CW Only Before this work, remove the transformer box according to Section 4.1.9 “Removing Transformer Box”. Remove the transformer box cover according to Section 4.1.8 “Removing Transformer Box Cover”. (3) Remove the metal plate assembly from the transformer.

  • Page 332: Main Parts

    MAINTENANCE (Main Parts) 4.2 Main Parts (H,Y)VAHP072B31CW (H,Y)VAHP072B41CW (H,Y)VAHP096B31CW (H,Y)VAHP096B41CW 208-230V, 3PH, 60Hz 460V, 3PH, 60Hz 208/230V 460V 23.5A 15 - 100Hz 0 - 70Hz 0.01Hz (208V) (460V) f (Hz) f (Hz) 4-48 SM-16007...
  • Page 333 MAINTENANCE (Main Parts) Current Rated Current of Transistor Module (IPM) Rated Current 105% 10ms 50ms Time GND1 CP19 CP20 CP21 VCC15T VCC15 PCN301 VCC05 CN206 CN207 CP18 CP17 CP14 CP16 4-49 SM-16007...
  • Page 334 MAINTENANCE (Main Parts) 4-50 SM-16007...
  • Page 335 MAINTENANCE (Main Parts) 4-51 SM-16007...
  • Page 336 MAINTENANCE (Main Parts) Perform this high voltage discharge work to avoid an electric shock. < Procedures > Plug Solder Bit Connecting Wires Transistor Module (IPM) Drive Circuit Drive Circuit Drive Circuit Drive Circuit Drive Circuit Drive Circuit Drive Circuit Sensor Over Heating Protection Circuit 4-52...
  • Page 337 MAINTENANCE (Main Parts) NOTICE Do not use a digital tester. 4-53 SM-16007...
  • Page 338 MAINTENANCE (Main Parts) NOTICE Do not use a digital tester. 4-54 SM-16007...
  • Page 339 MAINTENANCE (Main Parts) 208/230V 460V Screw 208/230V/60Hz 460V/60Hz 4700 F 4700 F 2700 F LED501 4-55 SM-16007...
  • Page 340 MAINTENANCE (Main Parts) Turn ON the outdoor unit power source. Press and hold the PSW1 There are possibilities of the following of O.U. PCB to change failures: Fuse (EFR1 or EFS1) the Check Mode. • Power Circuit of O.U. PCB Failure is melted? The indication “CHEK”...
  • Page 341 MAINTENANCE (Main Parts) THM8 THM9 THM7 PCN29 PCN42 PCN28 PCN10 PCN9 THM23 PSW1 PCN8 THM11 PCN6 PCN7 PCN5 LED1 PCN16 CN14 PCN3 THM10 PCN2 7-Segment Display VCC05 CN10 VCC12 CN12 LED5 GND1 GND2 Fuse Fuse EFR1 EFS1 4-57 SM-16007...
  • Page 342 MAINTENANCE (Main Parts) 140 F (60 F (110 C). (1) The gas is sucked from the inlet port at the outer frame of the fixed scroll. (2) The gas inside the compression space is compressed toward the center of the scroll. (3) The compression space is minimum at the center of the scroll, and the gas compressed at the maximum is discharged from the outlet port at the center of the scroll.
  • Page 343 MAINTENANCE (Main Parts) F (60 F (110 Suction Pipe Suction Fixed Scroll Frame Motor Discharge Pipe Discharge Oil Pipe (H,Y)VAHP072B31CW (H,Y)VAHP096B31CW (H,Y)VAHP072B41CW (H,Y)VAHP096B41CW 0.199 (208-230V/60Hz) F(75 C) 0.839 (460V/60Hz) F(75 C) 0.707 (208-230V/60Hz) F(75 C) 2.907 (460V/60Hz) F(75 C) 4-59 SM-16007...
  • Page 344 MAINTENANCE (Main Parts) 4-60 SM-16007...
  • Page 345 MAINTENANCE (Main Parts) 1, 2 3, 4, 5 6, 7 8, 9 4-61 SM-16007...
  • Page 346 MAINTENANCE (Main Parts) Rotating Direction φ φ 1/2 (13 (M10) (P1.5) φ φ 2-15/16 (74.5) 1-9/16 1-7/8 8 (228.4) (40) 2-1/16 (48) (51.6) 13-3/8 (228.4) U: Red ECW8802AHS 0.794 (H,Y)VAHP072B(3,4)1CW (H,Y)VAHP096B(3,4)1CW 1200W 68 F(20 C) V: White W: Black 4-62 SM-16007...
  • Page 347 MAINTENANCE (Main Parts) Ta Thermistor Thermistor Holder Thermistor Fixing Plate Butyl Sheet Inverter Compressor Plastic Band Td Thermistor (Td1) for Discharge Gas Constant Temperature Speed Thermistor Compressor (Te,Tg,Tchg,Tbg) Thermo Thermistor Clip Holder Thermistor Holder Thermistor Fixing Plate Td Thermistor (Td2) for Discharge Gas Temperature 4-63...
  • Page 348 MAINTENANCE (Main Parts) =200kΩ (When T=77 F (25 C), R =200kΩ) B=3920k . exp B (1/T [K] - 1/298) Thermistor 116.5kΩ Resistance [kΩ] 41.4kΩ 17.2kΩ 8.1kΩ (-18) (10) (38) (66) (93) (121) Temperature T [ Thermistor Characteristics F (132 F (132 C) F (140 C) F (132 C) F (140 C)
  • Page 349 MAINTENANCE (Main Parts) Micro-Computer Pulse Motor Pulse Signal 2-2 Phase Permanent Magnetic Pulse Motor Opening of expansion valve is controlled by the outdoor unit PCB1 order. Refrigerant Flow Control Precise Control Needle F (-30 R410A 1.2V 100 - 200 PPS F (20 C)) White (3) φ1...
  • Page 350 MAINTENANCE (Main Parts) F (-25 R410A 1.2V 30 - 90 PPS F (20 C)) 3 White ɸ1 (COM) 1 Red OFF OFF OFF OFF OFF ɸ3 5 Orange OFF OFF OFF OFF OFF OFF OFF OFF OFF ɸ2 ɸ4 OFF OFF OFF OFF OFF Yellow Brown Blue...
  • Page 351 MAINTENANCE (Main Parts) F (-30 R410A 1.2V 83 5 PPS 46 3 F (20 C)) Phase (Connection No.) A (3) B (4) A (5) B (6) Valve Operation Open Direction Close *) . F (20 C)) F(10 4-67 SM-16007...
  • Page 352 MAINTENANCE (Main Parts) Heating Operation Proportional Control of Compressor Frequency with Operating Capacity High of Indoor Units Pressure Control Protection Control (Gas Bypass Control) 363 (2.5) 0 (0) 725 (5.0) Pressure Psi (MPa) Output Characteristics of High Pressure Sensor Cooling Operation Proportional Control of Compressor Frequency with Operating Capacity...
  • Page 353 MAINTENANCE (Main Parts) Faston Terminal High Pressure Switch Brazing Part PSH1 Inverter PSH2 Compressor Constant Speed Compressor 4-69 SM-16007...
  • Page 354 MAINTENANCE (Main Parts) SR10PA 1,250 F (20 C) 4-70 SM-16007...
  • Page 355 MAINTENANCE (Main Parts) EFFQ-60TT-01 AC250V 60A -13 F ( -25 F (85 C) 9-5/8 (245) 4-5/8 4-5/8 (117) (117) 9-1/4 (235) Max. 2-3/4 (70) Max. 0.138 (3.5) 4-71 SM-16007...
  • Page 356 MAINTENANCE (Main Parts) NFT-027A30-HHAO AC 460V 27A -13 F (-25 F (65 C) 8-7/16 (214) 3-1/4 (82) 4-5/8 (118) 1/4 (7.0) 6-φ0.165 4-72 SM-16007...
  • Page 357 MAINTENANCE (Main Parts) ESFQ-30F3P-04 AC220V 15A -13 F (-25 F (60 C) 7-7/16 (188.5) 0.177 6-11/16 (170) 2-9/16 (65) (4.5) 4-1/8 (105) φ1/4 (4.2) 4-73 SM-16007...
  • Page 358 MAINTENANCE (Main Parts) 4700 F 450V -13 F (-25 F (85 C) 5-29/32 (150) 2700 F 450V -13 F (-25 F (105 C) 5-1/8 (130) 4-74 SM-16007...
  • Page 359 MAINTENANCE (Main Parts) F (25 C)) F (110 C) 4-1/2 (114) 2-15/16 (75) 3-1/8 (80) F (25 C)) F (110 C) 2-3/16 (55) 3-3/8 (85.8) 2-3/8 (60) 3-3/8 (86) (68 F (20 C)) F (70 C) 2-1/4 (57) 2-5/8 (66) 4-3/16x1/4 2-1/8 (54) (4-4.5x6.5)

  • Page 361: External Input/Output And Function Setting

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5. External Input/Output and Function Setting SM-16007...

  • Page 362: Dip Switch Settings Of Outdoor Unit

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.1 DIP Switch Settings of Outdoor Unit TURN OFF all power sources before setting. Without turning OFF the power sources, the switches will not work and the settings will be invalid. (However, DSW4-No.1, 2, 4, 6, DSW7-No.4 and push switches can be operated when the power source is ON.) The “...

  • Page 363: High Static Pressure Setting (Dsw5-No.5: On)

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.2 High Static Pressure Setting (DSW5-No.5: ON) Turn ON the DSW5-No.5 pin for the high static pressure setting. This setting enables high static pressure operation up to a maximum of 0.24 in.W.G. (60Pa). required to secure a louver or a duct, this setting should be used. NOTES: 1.
  • Page 364 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (H,Y)VAHP072B(3,4)1CW and (H,Y)VAHP096B(3,4)1CW Detail of Long Hole Dimensional Drawing 9/32 (7) 15/32 (12) 21-21/32 (550) (Internal Height of Duct) 47-15/32(1206) 45-1/2 (1156) 34-13/32 (874) (Internal Width of Duct) 4 x φ19/32 (φ15) 47-7/32 (1199) 2 x φ5/16 (φ8) 2 x Long Hole 10-21/32 2 x φ5/16 (φ8)

  • Page 365: External Input/Output And Function Setting Mode For Outdoor Unit

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.3 External Input/Output and Function Setting Mode for Outdoor Unit Setting DSW4 on the outdoor unit Printed Circuit Board (PCB) is required for “External Input and Output Setting” and “Function Setting”. As for a combination of outdoor units, this must be set from DSW4 in outdoor unit A.

  • Page 366: External Input And Output Settings

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.3.1 External Input and Output Settings On the outdoor unit Printed Circuit Board (PCB), there are three input terminals (CN17, CN18 as shown below) to receive external signals and two output terminals (CN16) to send signals out. Control functions shown in these tables are available when setting input and output terminals.
  • Page 367 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING Settings for External Input and Output If an alternative setting is required at a site, perform the following procedures. For a combination of outdoor units, perform the setting for outdoor unit A. (1) By selecting “External Input and Output Setting”, the following appears on the 7-segment display. (The setting should be performed during an outdoor unit stoppage.
  • Page 368 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING External Input Function Setting The following signals can be received by the outdoor unit PCB. Refer to Table 5.1 below for the required main parts. (1) Input Fixing Heating Operation Mode (Control Function No.1), Input Fixing Cooling Operation Mode (Control Function No.2) When the input terminals for the setting operation mode on the outdoor unit PCB are short-circuited, the operation mode can be set at the cooling or heating mode.
  • Page 369 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (3) Input Outdoor Fan Motor Start/Stop (Control Function No.4) This is an auxiliary function to protect the outdoor unit from snow. When the input terminals for Outdoor Fan Motor Start/Stop on the outdoor unit PCB are short-circuited during the compressor stoppage, all the outdoor fan motors start operating.
  • Page 370 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (4) Input Forced Stoppage (Control Function No.5) When the input terminals for Forced Stoppage on the outdoor unit PCB are short-circuited while running, the compressors and the indoor fan motors are stopped. The stoppage code No. “10” is given. In this case, if the input terminals are opened, operation is resumed.
  • Page 371 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (6) Input Low Noise Setting 1, 2, 3 (Control Function No.11 to 13) When the input terminals for Low Noise Setting on the outdoor unit PCB are short-circuited, the compressor frequency and outdoor fan rotation frequency are controlled and the operating sound of the outdoor unit will be as shown in the table below.
  • Page 372 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING Parts Remarks Mini-Power Relay, (Model: MY1F or MY2F) Auxiliary Relay (X1, X2) 208V/230V made by OMRON Change-Over Switch (SS2, SS3) Manual Switch 208V/230V Model: PCC-1A Five Cords with 3 Pin Connector Cord (Connected to JST Connector, XARP-3) Connectors as One Set Low Volt.
  • Page 373 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING External Output Function Setting The following signals can be picked up from the outdoor unit PCB. Refer to Table 5.2 for the required auxiliary relay. (1) Output Operation Signal (Control Function No.1) This function is utilized to receive the operation signal. Auxiliary relay contacting (RYa) is closed during the operation.
  • Page 374 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (3) Output Compressor ON Signal (Control Function No.3) This function is utilized to receive the compressor operation signal. Auxiliary relay contacting (RYa) is closed during the compressor operation. • Setting Example Compressor ON Signal at Output 2 (between 1 and 3 pins of CN16) Auxiliary Relay 3P Connector Housing 1 2 3...

  • Page 375: Function Setting

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.3.2 Function Setting NOTE: The setting should be performed during the outdoor unit stoppage. For a combination of outdoor units, set it to outdoor unit A. (The setting cannot be performed to outdoor units B and C.) Outdoor unit A is the unit to which the communication cable between the outdoor unit and indoor unit is connected.
  • Page 376 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.3.2.1 Function Setting Item 7-Segment Display Setting Item Contents SEG2 SEG1 No setting Indoor fan forced ON and OFF (2 min. ON / 6 min. OFF) Circulator Function Indoor fan forced ON and OFF (2 min. ON / 13 min. OFF) at Heating Thermo-OFF Indoor fan forced ON and OFF (2 min.
  • Page 377 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 7-Segment Display Setting Item Contents SEG2 SEG1 Initial setting (stoppage unit expansion valve opening) 006-015MBH: 100~300 pulse, 018MBH or over: 200~400 pulse Indoor Expansion Valve Expansion valve opening: 150~325 pulse Opening Change for Expansion valve opening 006-015MBH: 175 pulse, 018MBH or over: 300 pulse Stoppage Indoor Unit Expansion valve opening 006-015MBH: 100 pulse, 018MBH or over: 150 pulse in Heating Mode...
  • Page 378 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 7-Segment Display Setting Item Contents SEG2 SEG1 Not Prepared No setting Thermo-OFF Setting for Outdoor Unit After Defrosting Operation Thermo-OFF stoppage setting for outdoor unit after defrosting operation Not Available Energy Saving Mode Available Not Available Stoppage for 20 days Stoppage for 15 days Crankcase Heater Control during...

  • Page 379: Description Of Function Setting Item

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.3.2.2 Description of Function Setting Item (1) Circulator Function at Heating Thermo-OFF (Function Setting “FA”) Press “PSW3” and select the setting conditions “0 to 4” in Circulator Function at Heating Thermo-OFF “ ”. Normally, the fan speed is changed to “LOW” at heating Thermo-OFF. (It is possible for the room temperature to be too high at the heating Thermo-OFF.) However, the indoor fan motor is operated at “LOW”...
  • Page 380 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (2) Night Shift (Low Noise) (Function Setting “ni”) Press “PSW3” and select the setting condition “1” or “2” for the Night Shift (Low Noise) “ ”. Then, this function can be set. “ni”=1 reduces the upper limit of the outdoor fan rotation and the compressor frequency as shown below in any operation.
  • Page 381 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (3) Cancellation of Outdoor Ambient Temperature Limit (Function Setting “GS”) Press “PSW3” and select the setting condition “0” to “3” for Cancellation of Outdoor Ambient Temperature limit “ ”. Then, this function can be set. The heating operation is continued even under a high outdoor temperature or the cooling operation is continued even under a low temperature.
  • Page 382 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (4) SLo Defrost Setting (Function Setting “bJ”) Press “PSW3” and select the setting condition “0” to “4” at SLo Defrost Setting “ “. Indoor fan operation is stopped during the defrost operation, after the defrost operation and at the start of the heating operation.
  • Page 383 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (7) Demand Function Setting (Function Setting “dE”) Press “PSW3” and select the setting condition “0” to “5”, so that Demand Function Setting “ ” can be set. This function is available by setting to “1” for the demand current control without inputting the signal to the external input terminal on the outdoor unit PCB.
  • Page 384 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (8) Wave Function Setting (Function Setting “UE”) Press “PSW3” and select the setting condition “0” to “4”, so that Wave Function Setting “ ” can be set. While this function is activated, the maximum limit of running current is changed from 40% to 80% as shown NOTE: If Demand Current Control by External Input Function is set and the external input signal is available, this function is not performed during Demand Current Control by External Input Function is performed.
  • Page 385 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (10) Adjustment of Fan Rotation (Function Setting “Fo”) Press “PSW3” and select the setting condition “0” to “2” at Adjustment of Fan Rotation “ ”, so Adjustment of Fan Rotation can be set. If the outdoor unit fans make a whining sound in an instance of multiple installations, set this function to the relevant outdoor units.
  • Page 386 EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING (12) Intermittent Operation of Outdoor Fan Motor (Function Setting “F4”) Press “PSW3” and set Intermittent Operation of Outdoor Fan Motor “ ” (auxiliary function) to protect the outdoor fan motor from snow. Set this function to the PCB of the outdoor unit A (main outdoor unit). When the outdoor temperature (selectable from 38 F (3 C), 32...

  • Page 387: Power Saving Functions From Wired Controller

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.4 Power Saving Functions from Wired Controller The power saving functions are available from the wired controller COW01 as follows. 5.4.1 Power Saving Guide Press “ECO” button then the power saving guide will be displayed to support the setting. Easy access to the 5.4.2 Outdoor Unit Capacity Control The demand function setting can be controlled from wired controller.

  • Page 388: Rotation Control Function

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.4.3 Rotation Control Function The rotation control switches multiple indoor unit operating mode to FAN mode (Thermo-OFF) in order one by one. Order of Fan Operation Cooling Operation Operation* Indoor Unit 1 Order of Fan Operation The indoor unit fan Cooling...

  • Page 389: Power Saving Schedule Function

    EXTERNAL INPUT/OUTPUT AND FUNCTION SETTING 5.4.5 Power Saving Schedule Function The power saving schedule function is utilized to set the power saving schedule on indoor unit capacity The display of Noise Reduction Schedule is the same. 5.4.6 Operation Noise Reduction Schedule Function The operation noise reduction schedule function is utilized to set the operation noise reduction schedule up NOTE: The operation noise reduction setting may decreases the Cooling/Heating capacity.

  • Page 391: Field Work Instructions

    FIELD WORK INSTRUCTIONS 6. Field Work Instructions SM-16007...

  • Page 392: Caution For Refrigerant Leakage

    FIELD WORK INSTRUCTIONS If you cannot solve the problem, contact your distributor or contractor. Caution for Refrigerant Leakage requirements. The standard is recognized as the main guide for personal safety involving refrigeration systems. It strives to ensure a safe application of refrigerant systems by limiting the maximum charge so that a complete discharge due to a leak into a small, occupied, and enclosed room can never exceed the allowable limit.
  • Page 393 FIELD WORK INSTRUCTIONS DANGER malfunction, and failure, and in the worst case, it endangers safety seriously and may cause a Therefore, Be aware that Johnson SM-16007...

  • Page 394: Maintenance Work

    FIELD WORK INSTRUCTIONS Maintenance Work (a) Fan and Fan Motor lubricating maintenance is required. Sound and Vibration - Inspect for abnormal sounds or vibration. Rotation - Check that the fan rotates counterclockwise and inspect the rotating speed. Insulation - Inspect for electrical insulation resistance. an outdoor unit, other obstacles such as growing grass and pieces of paper, which might intercept (c) Piping Connection Leakage - Inspect for refrigerant leakage at piping connections.

  • Page 395: Service And Maintenance Record By 7-Segment Display

    FIELD WORK INSTRUCTIONS Service and Maintenance Record by 7-Segment Display Customer’s Name (Serial No. (Serial No. (2) Test Run Start Time (3) Data Collect Start Time Protection Control Code Fan2 Fan1 Fan2 Fan1 Control Software No. Inverter Software No. Low Pressure (Suction Pressure) Discharge Temperature Inverter Fin Temperature Inverter Primary Current...
  • Page 396 FIELD WORK INSTRUCTIONS Data Sheet for Checking by Wired Controller Time I.U. Model I.U. Serial No. Check Check Mode Mode 1 • 2 1 • 2 1 • 2 1 • 2 1 • 2 B Temp. Indication Set Temp. Liquid Pipe Temp.
  • Page 397 FIELD WORK INSTRUCTIONS P Compressor Condition Indication (Reference) Comp. Current Comp. g Sensor Condition Indication Motion Sensor Response Rate Radiation Sensor Temp. Motion Sensor1 Response Rate Motion Sensor2 Response Rate Motion Sensor3 Response Rate Motion Sensor4 Response Rate Setting Temp. Collected Value Result Refer to Section 3.1.4 “Checking Wired Controller”...

  • Page 398: Service And Maintenance Record

    FIELD WORK INSTRUCTIONS Service and Maintenance Record Service and Maintenance Record Check Item Judgment Refrigeration Piping Fixing of Units Checking of Screws and Bolts Tighten them if they are loosened. Tighten all terminal screws with a Tightening of Terminal Screws Phillips screwdriver.

  • Page 399: Saturation Curve For Refrigerant

    FIELD WORK INSTRUCTIONS Saturation Curve for Refrigerant R410A SM-16007...
  • Page 400 FIELD WORK INSTRUCTIONS 6-10 SM-16007...

  • Page 401: Service Parts List

    SERVICE PARTS LIST 7. Service Parts List SM-16007...
  • Page 402 SERVICE PARTS LIST SERVICE PARTS LIST (P0165x-01) Voltage 208/230V 60Hz 460V 60Hz Replacement Part Q'ty Per Unit Part Name Remarks Draw. No. Part No. Side Cover H7B02572A QU098013 Side Cover H7B02573A QU098014 TH Holder H17D55179A for Ta Thermistor Thermistor H7B00032A QU015012 THM7: for Ambient (Ta) Front Stay...
  • Page 403 SERVICE PARTS LIST LOCATION OF SERVICE PARTS IN THE UNIT MODEL: (H,Y)VAHP072B31CW < Cabinet and Fan > (H,Y)VAHP096B31CW (H,Y)VAHP072B41CW (H,Y)VAHP096B41CW Only for 460V/60Hz Only for 208~230V/60Hz Truss Head Tapping Screw Stud Bolt Round Head Screw Flat Head Screw Washer Pan Head Tapping Screw Spring Lock Washer Hexagon Head Bolt Tooth Lock Washer...
  • Page 404 SERVICE PARTS LIST SERVICE PARTS LIST (P0165x-02) Voltage 208/230V 60Hz 460V 60Hz Replacement Part Q'ty Per Unit Part Name Remarks Draw. No. Part No. Compressor 17F18776A 06954296 MC1: EK655DHD-65A2Y 17F19108A 06954167 MC1:EK655DHD-65D2Y Compressor 17F18584A 06954166 MC2: EK655DH-65H2Y 17F19087A 06954157 MC2: EK655DH-65E2Y Vibration Absorber H17D21147B Vibration Absorber...
  • Page 405 SERVICE PARTS LIST SERVICE PARTS LIST (P0165x-02) Voltage 208/230V 60Hz 460V 60Hz Replacement Part Q'ty Per Unit Part Name Remarks Draw. No. Part No. Thermistor H7B00029A QU015009 THM8: for Compressor (Td1) Thermistor H7B00030C QU015011 THM17, 10: for Piping (Te, Tchg) Thermistor H7B00030A QU015010...
  • Page 406 SERVICE PARTS LIST LOCATION OF SERVICE PARTS IN THE UNIT MODEL: (H,Y)VAHP072B31CW < Refrigerant Cycle > (H,Y)VAHP096B31CW (H,Y)VAHP072B41CW (H,Y)VAHP096B41CW 49 55 37 38 31 33 31 33 20 21 33 31 33 31 Truss Head Tapping Screw Stud Bolt Round Head Screw Flat Head Screw Washer Pan Head Tapping Screw...
  • Page 407 SERVICE PARTS LIST SERVICE PARTS LIST (P0165x-03) Voltage 208/230V 60Hz Replacement Part Q'ty Per Unit Part Name Remarks Draw. No. Part No. Electrical Box H7B01136A Terminal Block H7C04156A QU013002 TB1: 600V, 150A Noise Filter H7B03904A QU103007 NFT060800-HHA0 Holder H17G07802A Fan Controller 17H07495J P30802 FANM: PV092...
  • Page 408 SERVICE PARTS LIST LOCATION OF SERVICE PARTS IN THE UNIT MODEL: (H,Y)VAHP072B31CW < Electrical Parts > (208/230V 60Hz) (H,Y)VAHP096B31CW B-4x16 B-5x16 B-3x10 A-4x10 A-4x10 A-4x16 B-4x10 A-4x10 B-3x20 B-4x10 A-4x10 B-3x35 A-4x10 B-5x14 Truss Head Tapping Screw Stud Bolt Round Head Screw Flat Head Screw Washer Pan Head Tapping Screw...
  • Page 409 SERVICE PARTS LIST SERVICE PARTS LIST (P0165x-04) Voltage 460V 60Hz Replacement Part Q'ty Per Unit Part Name Remarks Draw. No. Part No. Electrical Box H7B01136A Terminal Block H7C04156A QU013002 TB1: 600V, 150A Noise Filter H7B03933A QU103008 NF1: NFT-027A60-HHA0 Holder H17G07802A Fan Controller H17B41624G QU101010...
  • Page 410 SERVICE PARTS LIST LOCATION OF SERVICE PARTS IN THE UNIT MODEL: (H,Y)VAHP072B41CW < Electrical Parts > (460V 60Hz) (H,Y)VAHP096B41CW B-4x16 B-5x16 B-3x10 A-4x10 A-4x10 A-4x16 B-4x10 B-4x10 A-4x10 A-4x10 B-3x20 A-4x10 B-3x35 A-4x10 A-4x10 A-4x10 A-4x10 A-4x10 A-4x10 A-4x10 B-5x14 Truss Head Tapping Screw Stud Bolt Round Head Screw...
  • Page 411 SERVICE PARTS LIST SERVICE PARTS LIST (P0165x-05) Voltage 208/230V 60Hz Replacement Part Q'ty Per Unit Part Name Remarks Draw. No. Part No. Sub Electrical Box H7C01437A Terminal Block H7C04157A QU013003 Mag. Contactor 17B25840G P28818 CMC2 Current Sensor H7D06486A QU019002 Circuit Breaker 17B42992B P29103 FFB2, 32A...
  • Page 412 SERVICE PARTS LIST SERVICE PARTS LIST (P0165x-06) Voltage 460V 60Hz Replacement Part Q'ty Per Unit Part Name Remarks Draw. No. Part No. Sub Electrical Box H7C01437A Terminal Block H7C04157A QU013003 Mag. Contactor 17B46286A P30509 CMC2 Current Sensor H7C04166A QU019001 Circuit Breaker 17B46288A P30511 FFB2, 15A...
  • Page 413 SERVICE PARTS LIST LOCATION OF SERVICE PARTS IN THE UNIT MODEL: (H,Y)VAHP072B31CW < Sub Electrical Box > (H,Y)VAHP096B31CW (H,Y)VAHP072B41CW (H,Y)VAHP096B41CW A-4x16 A-4x20 Truss Head Tapping Screw Stud Bolt Round Head Screw Flat Head Screw Washer Pan Head Tapping Screw Spring Lock Washer Hexagon Head Bolt Tooth Lock Washer NOTE:...
  • Page 414 SERVICE PARTS LIST SERVICE PARTS LIST (P0165x-07) Voltage 460V 60Hz Replacement Part Q'ty Per Unit Part Name Remarks Draw. No. Part No. TF Box H17F15169A Base H17F15168B TB Plate H17H25234A F-Cover Assy H17H26002A Service Cover H17H25235A Circuit Breaker 17B46287A P30510 FFB3 Noise Filter H7B00626A...
  • Page 415 SERVICE PARTS LIST LOCATION OF SERVICE PARTS IN THE UNIT MODEL: (H,Y)VAHP072B41CW < TF Box > (H,Y)VAHP096B41CW A-4x10 A-4x10 A-4x16 A-4x16 A-4x10 A-4x10 B-8x20 A-4x10 Truss Head Tapping Screw Stud Bolt Round Head Screw Flat Head Screw Washer Pan Head Tapping Screw Spring Lock Washer Hexagon Head Bolt Tooth Lock Washer...
  • Page 416 © 2016 Johnson Controls, Inc. SM-16007 Code No. LIT-12012400 Issued November 2016...

This manual is also suitable for:

Hvahp0961cw seriesHvahp1441cw seriesHvahp1681cw seriesHvahp1921cw seriesHvahp2881cw seriesYvahp0721cw series ... Show all

Table of Contents