Daikin VRV II REYQ18MY1B Manuals

Manuals and User Guides for Daikin VRV II REYQ18MY1B. We have 1 Daikin VRV II REYQ18MY1B manual available for free PDF download: Service Manual

Daikin VRV II REYQ18MY1B Service Manual (309 pages)

R410A Heat Recovery 50Hz

Brand: Daikin | Category: Heating System | Size: 14.44 MB

Table of Contents
2
Introduction
7
Safety Cautions
7
Preface
11
Part 1 General Information
12
Model Names of Indoor/Outdoor Units
13
External Appearance
14
Indoor Units
14
Outdoor Units
15
Combination of Outdoor Units
16
Model Selection
17
Part 2 Specifications
20
Specifications
21
Outdoor Units
21
Indoor Units
32
BS Units
51
Part 3 Refrigerant Circuit
52
Refrigerant Circuit
53
Reyq8, 10, 12M
53
Reyq14, 16M
55
Bsvq100, 160, 250M
57
Functional Parts Layout
58
Reyq8, 10, 12M
58
Reyq14, 16M
60
Refrigerant Flow for each Operation Mode
62
Part 4 Function
68
Operation Mode
69
Basic Control
70
Normal Operation
70
Compressor PI Control
71
Electronic Expansion Valve PI Control
77
Cooling Operation Fan Control
78
Heat Exchange Mode in Heating Operation or Simultaneous Cooling / Heating Operation
79
Special Control
80
Startup Control
80
Oil Return Operation
82
Defrosting Operation
84
Pressure Equalizing Control
85
Pump-Down Residual Operation
86
Restart Standby
87
Stopping Operation
88
Pressure Equalization Prior to Startup
90
Protection Control
91
High Pressure Protection Control
91
Low Pressure Protection Control
92
Discharge Pipe Protection Control
93
Inverter Protection Control
94
STD Compressor Overload Protection
95
Other Control
96
Outdoor Unit Rotation
96
Emergency Operation
97
Demand Operation
99
Heating Operation Prohibition
99
Outline of Control (Indoor Unit)
100
Drain Pump Control
100
Louver Control for Preventing Ceiling Dirt
102
Thermostat Sensor in Remote Controller
103
Freeze Prevention
105
Part 5 Test Operation
106
Test Operation
107
Procedure and Outline
107
Operation When Power Is Turned on
110
Outdoor Unit PC Board Layout
111
Field Setting
112
Field Setting from Remote Controller
112
Field Setting from Outdoor Unit
124
Part 6 Troubleshooting
144
Troubleshooting by Remote Controller
146
The INSPECTION / TEST Button
146
Self-Diagnosis by Wired Remote Controller
147
Self-Diagnosis by Wireless Remote Controller
148
Operation of the Remote Controller's Inspection / Test Operation Button
151
Remote Controller Service Mode
152
Remote Controller Self-Diagnosis Function
154
Troubleshooting by Indication on the Remote Controller
159
A0" Indoor Unit: Error of External Protection Device
159
A1" Indoor Unit: PC Board Defect
160
A3" Indoor Unit: Malfunction of Drain Level Control System (S1L)
161
A6" Indoor Unit: Fan Motor (M1F) Lock, Overload
163
Fan Motor (M1F) Lock, Overload
163
A7" Indoor Unit: Malfunction of Swing Flap Motor (MA)
164
A9" Indoor Unit: Malfunction of Moving Part of Electronic Expansion Valve (20E)
166
AF" Indoor Unit: Drain Level above Limit
168
AJ" Indoor Unit: Malfunction of Capacity Determination Device
169
C4" Indoor Unit: Malfunction of Thermistor (R2T)
170
Malfunction of Thermistor (R2T) for Heat Exchanger
170
For Heat Exchanger
170
2.10 " C5 " Indoor Unit
171
Malfunction of Thermistor (R3T) for Gas Pipes
171
C5" Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes
171
C9" Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air
172
CJ" Indoor Unit: Malfunction of Thermostat Sensor in Remote Controller
173
CJ" Indoor Unit: Malfunction of Thermostat Sensor in
173
Remote Controller
173
E1" Outdoor Unit: PC Board Defect
174
PC Board Defect
174
E3" Outdoor Unit: Actuation of High Pressure Switch
175
E4" Outdoor Unit: Actuation of Low Pressure Sensor
176
Compressor Motor Lock (INV Compressor)
177
E5" Compressor Motor Lock (INV Compressor)
177
Compressor Motor Overcurrent/Lock (STD Compressor)
178
E6" Compressor Motor Overcurrent/Lock (STD Compressor)
178
Malfunction of Outdoor Unit Fan Motor
179
E7" Malfunction of Outdoor Unit Fan Motor
179
Expansion Valve (Y1E, Y2E, Y3E)
181
F3" Outdoor Unit: Abnormal Discharge Pipe Temperature
183
Refrigerant Overcharged
184
F6" Refrigerant Overcharged
184
Abnormal Outdoor Fan Motor Signal
185
H7" Abnormal Outdoor Fan Motor Signal
185
H9" Outdoor Unit: Malfunction of Thermistor for Outdoor Air (R1T)
186
Current Sensor Malfunction
187
J2" Current Sensor Malfunction
187
J3" Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R31~33T)
188
J4" Malfunction of Heat Exchanger Gas Pipe Thermistor (R81, 82T)
189
J5" Outdoor Unit: Malfunction of Thermistor (R2T) for Suction Pipe
190
Unit Heat Exchanger
191
J6" Outdoor Unit: Malfunction of Thermistor (R4T) for Outdoor Unit Heat Exchanger
191
Malfunction of Receiver Outlet Liquid Pipe Thermistor (R6T)
192
J7" Malfunction of Receiver Outlet Liquid Pipe Thermistor (R6T)
192
Malfunction of Oil Equalizing Pipe Thermistor (R7T)
193
J8" Malfunction of Oil Equalizing Pipe Thermistor (R7T)
193
Malfunction of Receiver Gas Pipe Thermistor (R5T)
194
J9" Malfunction of Receiver Gas Pipe Thermistor (R5T)
194
JA" Outdoor Unit: Malfunction of Discharge Pipe Pressure Sensor
195
JC" Outdoor Unit: Malfunction of Suction Pipe Pressure Sensor
196
Temperature Rise
197
L5" Outdoor Unit: Inverter Compressor Abnormal
198
L8" Outdoor Unit: Inverter Current Abnormal
199
L9" Outdoor Unit: Inverter Start up Error
200
2.38 " LC " Outdoor Unit
201
Inverter and Control PC Board
201
P1" Outdoor Unit: Inverter Over-Ripple Protection
203
Inverter Over-Ripple Protection
203
P4" Outdoor Unit: Malfunction of Inverter Radiating Fin
204
Temperature Rise Sensor
204
2.41 " PJ " Outdoor Unit
205
Mismatching of Inverter · Fan Driver P.C. Board
205
PJ" Outdoor Unit: Mismatching of Inverter Fan Driver P.C. Board
205
UO" Low Pressure Drop Due to Refrigerant Shortage or
206
Electronic Expansion Valve Failure
206
Reverse Phase, Open Phase
207
U1" Reverse Phase, Open Phase
207
Power Supply Insufficient or Instantaneous Failure
208
U2" Power Supply Insufficient or Instantaneous Failure
208
Check Operation Not Executed
210
U3" Check Operation Not Executed
210
Malfunction of Transmission between Indoor Units
211
U4" Malfunction of Transmission between Indoor Units
211
U5" Malfunction of Transmission between Remote
213
Controller and Indoor Unit
213
Malfunction of Transmission between Outdoor Units
214
U7" Malfunction of Transmission between Outdoor Units
214
U8" Malfunction of Transmission between Master
216
Slave Remote Controllers
216
Malfunction of Transmission between Indoor and Outdoor Units in the same System
217
U9" Malfunction of Transmission between Indoor and Outdoor Units in the same System
217
UA" Excessive Number of Indoor Units
219
UC" Address Duplication of Centralized Remote Controller
220
Malfunction of Transmission between Centralized Remote Controller and Indoor Unit
221
UE" Malfunction of Transmission between Centralized Remote Controller and Indoor Unit
221
UF" Refrigerant System Not Set, Incompatible Wiring/Piping
223
UH" Malfunction of System, Refrigerant System Address Undefined
224
Troubleshooting (OP: Centralized Remote Controller)
225
UE" Malfunction of Transmission between Centralized
225
Remote Controller and Indoor Unit
225
UE" Malfunction of Transmission between Centralized Remote Controller and Indoor Unit
225
PC Board Defect
226
M1" PC Board Defect
226
Malfunction of Transmission between Optional Controllers for Centralized Control
227
Centralized Control
227
Improper Combination of Optional Controllerslers for Centralized Controllers
228
MA" Improper Combination of Optional Controllers for Centralized Control
228
MC" Address Duplication, Improper Setting
230
Troubleshooting (OP: Schedule Timer)
231
UE" Malfunction of Transmission between Centralized
231
Remote Controller and Indoor Unit
231
PC Board Defect
233
M1" PC Board Defect
233
M8" Malfunction of Transmission between Optional
234
Controllers for Centralized Control
234
Improper Combination of Optional Controllerslers for Centralized Controllers
235
MA" Improper Combination of Optional Controllers for Centralized Control
235
MC" Address Duplication, Improper Setting
237
Troubleshooting (OP: Unified ON/OFF Controller)
238
Operation Lamp Blinks
238
Display "Under Host Computer Integrate Control" Blinks (Repeats Single Blink)
240
Display "Under Host Computer Integrate Control" Blinks
240
Display "Under Host Computer Integrate Control" Blinks (Repeats Double Blink)
243
(Repeats Double Blink)
243
Part 7 Replacement Procedure for INV Compressor, VRV II (REYQ8M to 48M)
246
Vrv II (Reyq8M-48M)
247
Replacement Procedure
247
Part 8 Appendix
248
Piping Diagrams
249
Outdoor Unit
249
Indoor Unit
251
BS Unit
252
Wiring Diagrams for Reference
253
Outdoor Unit
253
Field Wiring
255
Indoor Unit
258
BS Unit
269
List of Electrical and Functional Parts
270
Outdoor Unit
270
Indoor Side
271
Option List
276
Option List of Controllers
276
Option Lists (Outdoor Unit)
278
Piping Installation Point
279
The Example of a Wrong Pattern
280
REFNET Pipe System
281
Layout Example
281
Max. Refrigerant Piping Length
282
Example of Connection (R410A Type) REYQ8-48M (Heat Recovery)
284
Example of Connection (R410A Type)Reyq8-48M (Heat Recovery)
284
Thermistor Resistance / Temperature Characteristics
286
Pressure Sensor
288
Method of Replacing the Inverter's Power Transistors and Diode Modules
289
Part 9 Precautions for New Refrigerant (R410)
292
Precautions for New Refrigerant (R410)
293
Outline
293
Refrigerant Cylinders
295
Service Tools
296
Index
302
Drawings & Flow Charts
306

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Daikin VRV II REYQ18MY1B Service Manual (309 pages)

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