Sanyo ECO-i AHX0752 Technical Data Manual
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Sanyo ECO-i AHX0752 Technical Data Manual

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Indoor Units
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a l
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X
- 4
W
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A
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D
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A
1-Way Air Discharge Semi-Concealed Type
U
Concealed Duct Type
Concealed Duct
D
High-Static Pressure Type
T
C
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l i
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M
o
u
K
Wall-Mounted Type
Outdoor Units
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ECO-i W -3WAY
* Refrigerant R410A is used in the outdoor units.
85464869239000
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C
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a
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C
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AHX0752
UHX0752
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T
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KHX0752
s
CHDZ09053
CHDZR09053 CHDZR14053
MULTI SYSTEM
7
9
1
2
X
H
X
1
2
5
2
X
M
H
X
1
2
5
2
AHX0952
AHX1252
UHX1252
T
H
X
1
2
5
2
KHX0952
KHX1252
9
0
1
4
0
CHDZ14053
3-WAY ECO-i
1
8
2
4
3
6
X
H
X
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8
5
2
X
H
X
2
4
5
2
X
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3
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H
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1
8
5
2
UHX1852
UHX2452
UHX3652
DHX3652
T
H
X
1
8
5
2
T
H
X
2
4
5
2
KHX1852
KHX2452
REFERENCE NO.
4
8
6
5
2
DHX4852
TD831139

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Summary of Contents for Sanyo ECO-i AHX0752

  • Page 1 3-WAY ECO-i MULTI SYSTEM Indoor Units 1-Way Air Discharge Semi-Concealed Type AHX0752 AHX0952 AHX1252 Concealed Duct Type UHX0752 UHX1252 UHX1852 UHX2452 UHX3652 Concealed Duct DHX3652 DHX4852 High-Static Pressure Type Wall-Mounted Type KHX0752 KHX0952 KHX1252 KHX1852 KHX2452 Outdoor Units CHDZ09053 CHDZ14053 ECO-i W -3WAY CHDZR09053 CHDZR14053 * Refrigerant R410A is used in the outdoor units.
  • Page 3 Check of Density Limit 2. The standards for minimum room volume are as fol- lows. The room in which the air conditioner is to be installed requires a design that in the event of refrig- (1) No partition (shaded portion) erant gas leaking out, its density will not exceed a set limit.

  • Page 4: Table Of Contents

    Contents Section 1: OUTLINE OF W-3WAY ECO-i SYSTEM ..............1-1 Line-up ......................1-2 Features of W-3WAY ECO-i SYSTEM .............1-4 Section 2: DESIGN OF W-3WAY ECO-i SYSTEM ..............2-1 Model Selecting and Capacity Calculator ............2-2 System Design ....................2-17 Electrical Wiring .....................2-23 Installation Instructions ..................2-27 Section 3: Control of W-3WAY ECO-i SYSTEM ..............3-1 Main Operating Functions ................3-3 Wireless Remote Controller ................3-5...
  • Page 5 Outline of W-3Way ECO-i SYSTEM Contents 1. OUTLINE OF W-3Way ECO-i MULTI SYSTEM 1. Line-up ..........................1-2 2. Features of W-3WAY ECO-i SYSTEM .................1-4...
  • Page 6 Outline of W-3Way ECO-i SYSTEM 1. Line-up Indoor units Type Capacity: BTU/h 9,600 (2.8) 12,000 (3.6) 19,000 (5.6) 25,000 (7.3) 36,000 (10.6) 47,800 (14.0) 7,500 (2.2) (kW) Cooling 8,500 (2.5) 11,000 (3.2) 14,000 (4.2) 21,000(6.3) 27,000(8.0) 39,000(11.4) 54,600(16.0) Heating 4-Way Air Discharge Semi- Concealed Type (X Type)
  • Page 7 Outline of W-3Way ECO-i SYSTEM 1. Line-up Outdoor units Type Capacity: BTU/h (kW) 95,500 (28.0) Cooling / Heating / 107,500 (31.5) Air direction Outdoor Unit 2-1/8 8-3/4 13-3/8 18-5/8 CHDZ09053 CHDZR09053 Type Capacity: BTU/h (kW) 153,600 (45.0) Cooling / Heating / 170,600 (50.0) Air direction Outdoor Unit...

  • Page 8: Section 1: Outline Of W-3Way Eco-I System

    Outline of W-3Way ECO-i SYSTEM 2. Features of W-3WAY ECO-i SYSTEM 2-1. Outline of W-3WAY ECO-i SYSTEM System example Inverter unit Inverter unit Since all pipings are concentrated into CONCENTRATION one pipe shaft, you can minimize piping space and construc- tion labor CONNECTION * The capacity after the setting is...
  • Page 9 Outline of W-3Way ECO-i SYSTEM 2. Features of W-3WAY ECO-i SYSTEM Dimensions 10,16 HP Air direction 10HP CHDZ09053 16HP CHDZ14053 Air direction Air direction 31-1/8 (Installation hole pitch) Unit: in. (Ceiling panel dimensions) Top view Dimensions of unit combinations 20,26,32 HP 74 (Ceiling panel dimensions) 35 (Ceiling panel dimensions) 35 (Ceiling panel dimensions)
  • Page 10 Outline of W-3Way ECO-i SYSTEM 2. Features of W-3WAY ECO-i SYSTEM Capacity control The compressor combination (DC inverter compressor + constant-speed compressor) allows smooth capacity control from 0.8 HP to 32 HP. Realization of smooth capacity control from 0.8HP to 32HP Capacity control is possible smoothly with a DC inverter compressor.The right graph shows the image of the operating combination of compres-...
  • Page 11 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations Contents 2. DESIGN OF W-3WAY ECO-i SYSTEM 1. Model Selecting and Capacity Calculator ................2-2 2. System Design ........................2-18 3. Electrical Wiring ........................2-24 4. Installation Instructions ....................2-31...

  • Page 12: Model Selecting And Capacity Calculator

    Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator 1-1. Operating Range Heating and Cooling Operating range Indoor air intake temp. F (DB) Heating Cooling Operating Operating range range Indoor air intake temp. F (DB) Indoor air intake temp.
  • Page 13 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator 1-2. Procedure for Selecting Models and Calculating Capacity Model Selection Procedure Select the model and calculate the capacity for each refrigerant system according to the procedure shown below. Calculation of the indoor air-conditioning load ●...
  • Page 14 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator 1-3. Tubing Length Select the installation location so that the length and size of refrigerant tubing are within the allowable range shown in the figure below. Main tubing length LM = LA + LB …...
  • Page 15 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator Refrigerant Charge Amount at Shipment (for outdoor unit) CHDZ09053 CHDZ14053 CHDZR09053 CHDZR14053 (oz) Additional Refrigerant Charge Additional refrigerant charge amount is calculated from the liquid tubing total length as follows. Amount of Refrigerant Charge Per Meter, According to Liquid Tubing Size Liquid tubing size Amount of refrigerant...
  • Page 16 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator 1-4. Tubing Size Table 2-2 Main Tubing Size (LA) Unit: in. (mm) BTU/h 95.500 153.600 191.000 249.100 307.200 Total system horsepower Combined outdoor units ø7/8" ø1-1/8" ø1-3/8"...
  • Page 17 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator Table 2-5 Amount of Refrigerant Charge Liquid tubing size Amount of refrigerant (in. (mm)) charge (oz/ft.) ø1/4" (ø6.35) 0.279 ø3/8" (ø9.52) 0.602 ø1/2" (ø12.7) 1.38 ø5/8" (ø15.88) 1.99 ø3/4"...
  • Page 18 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator 1-5. Installation Standards Relationship between A/C units and refrigerant tubing Solenoid 4-tube layout 3-tube layout 2-tube layout Outdoor unit Outdoor unit Indoor unit valve kit Suction tube Suction tube Gas tube Discharge tube...
  • Page 19 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator 1-6. Straight Equivalent Length of Joints Design the tubing system by referring to the following table for the straight equivalent length of joints. Table 2-8 Straight Equivalent Length of Joints Unit: ft.
  • Page 20 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator Check of limit density Always check the gas den- WARNING sity limit for the room in which the unit is installed. Minimum indoor volume and floor area as against the 1-7.
  • Page 21 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator 1-8. Calculation of Actual Capacity of Indoor Unit Calculating the actual capacity of each indoor unit Because the capacity of a multi air-conditioner changes according to the temperature conditions, tubing length, elevation difference and other factors, select the correct model after taking into account the various correction val- ues.
  • Page 22 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator <Heating> Outdoor unit corrected heating capacity (5) = Outdoor unit rated heating capacity × Correction coeffi cient for model ((1) Page 2-13) × Correction coeffi cient for outdoor temperature conditions ((2) Page 2-13) ×...
  • Page 23 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator Refer to the graph below for the correction coeffi cients for Ruc and Ruh. Indoor unit capacity correction coefficient for Ruc (cooling) Indoor unit capacity correction coefficient for Ruh (heating) 1.1 1.2 1.8 1.9 Corrected indoor/outdoor capacity ratio (Ruc or Ruh)
  • Page 24 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator Graph of indoor unit capacity characteristics (2 – (2)) Indoor unit cooling capacity characteristics Indoor unit heating capacity characteristics indicates the rating point. indicates the rating point. 57 59 60 62 64 66 68 69 71 73 75 77 59 60 62 64 66 68 69 71 73 75 77 78 Indoor air intake temp.
  • Page 25 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator 1-9. Capacity Correction Graph According to Temperature Condition Capacity characteristics (The corrected capacity for specifi c temperature conditions can be found from the graphs below.) <Cooling> <Heating>...
  • Page 26 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator Rated performance values Item Cooling Heating Cooling capacity Power consumption Heating capacity Power consumption Type BTU/h(kW) BTU/h(kW) BTU/h(kW) BTU/h(kW) 95,500(28.0) 27,000(7.90) 107,500(31.5) 26,500(7.75) 153,600(45.0) 45,400(13.3) 170,600(50.0) 45,000(13.2) 1-10.
  • Page 27 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Model Selecting and Capacity Calculator If the maximum tubing length (L1) exceeds 295 ft (equivalent length), increase the tubing size of the main liquid, gas tubes (LM) by one rank. However, the upper limit for the gas tube size is 1-5/8".

  • Page 28: System Design

    Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 2. System Design 2-1. System Example (1) Below are the tables created using the “Sanyo PAC System Diagram Software.” Details of the calculations are shown in (2). Outdoor Outdoor unit 1 unit 2...
  • Page 29 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 2. System Design Indoor unit changes The indoor unit in room 4, where the corrected indoor unit capacity is less than the maximum load, is increased by one rank. Room 1 Room 2 Room 3 Room 4 Outdoor unit...
  • Page 30 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 2. System Design (3) Increasing the size of the refrigerant tubing Increasing the tubing size of the gas tubes can reduce the loss of capacity caused by longer tubing lengths. Refer to Table 2-13 to increase the tubing size. However, the maximum allowable tubing length must not be exceeded. The amount of additional refrigerant charge is determined from the liquid tube size only.
  • Page 31 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 2. System Design Additional refrigerant charge before extension Liquid tube Tubing length (ft) Additional refrigerant charge (A) × (B) oz diameter per 1 ft (oz/ft) (B) ø1/2 1.38 9.055 ø3/8 65.6 0.602 39.501 ø3/4 26.2...
  • Page 32 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 2. System Design Checking of limit density The limit density judgment is made based on the room with the indoor unit having the smallest capacity in the system after exten- sion. The volume of the room where a type 1852 indoor unit is used (connected to tubing L9) is calculated as follows: fl...
  • Page 33 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 2. System Design 2-3. Installing Distribution Joint Tube branching methods (horizontal use) Pay special attention to any CAUTION location, such as a basement, etc., where leaking refrigerant can accumulate, since refrigerant gas is heavier than Horizontal air.

  • Page 34: Electrical Wiring

    Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 3. Electrical Wiring 3-1. General Precautions on Wiring sponsibility for any damage or misoperation that occurs as a result of such unauthorized changes. (1) Before wiring, confi rm the rated voltage of the unit (7) Regulations on wire diameters differ from locality to as shown on its nameplate, then carry out the wiring locality.
  • Page 35 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 3. Electrical Wiring 3-3. Wiring System Diagram Indoor unit (No. 1) Power supply Outdoor unit 208 / 230V, 1ø, ~60Hz INV unit Power supply Ground 208 / 230V, 3ø, ~60Hz Remote controller Ground Ground Ground Ground...
  • Page 36 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 3. Electrical Wiring CAUTION (1) When linking outdoor units in a network (S-net link system), disconnect the terminal extended from the short plug (CN003, 2P Black, location: right bottom on the outdoor main control PCB) from all outdoor units except any one of the outdoor units.
  • Page 37 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 3. Electrical Wiring (5) Use shielded wires for inter-unit control wiring (c) X, A, U, D, T, K Types and ground the shield on both sides, otherwise misoperation from noise may occur.(Fig. 3-4) Shielded wire Connect wiring as shown in Section 3-3.
  • Page 38 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 3. Electrical Wiring 3-4. Important Note When Wiring for Common Type X Type Connect the wires referring to the diagram. Note that the remote control wires and the power supply wires are not supplied. The remote control wires shall be segregated from the power supply wires as follows: Install the optional remote control wires (field supplied) and the manufacturer supplied 3-way wiring harness to...
  • Page 39 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 3. Electrical Wiring Important Note When Wiring for Common Type (Continued) D Type T Type Optional remote control wire (field supplied) Clamping Optional remote control wire clip (field supplied) Clamping clip Conduit Earth screw Power wiring Conduit...
  • Page 40 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 3. Electrical Wiring 3-5. Important Note When Wiring for XM Type XM Type Connect the wires referring to the diagram. Note that the remote control wires and the power supply wires are not supplied. The remote control wires shall be 3-way connection wiring with segregated from the power supply wires as follows: harness (supplied)

  • Page 41: Installation Instructions

    Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions Ceiling-Mounted T ype 4. Installation Instructions Ceiling 4-1. Indoor Unit AVOID: areas where leakage of fl ammable gas may be expected. Wall places where large amounts of oil mist exist. direct sunlight.
  • Page 42 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions 4-2. Indoor Unit Exhaust fan AVOID: Hot air heat sources, exhaust fans, etc. Heat damp, humid or uneven locations source Out- indoors (no-ventilation location) door unit choose a place as cool as possible. choose a place that is well ventilated.
  • Page 43 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions 4-3. Shield for Horizontal Exhaust Discharge It is necessary to install an air-discharge chamber (fi eld sup- ply) to direct exhaust from the fan horizontally if it is diffi cult to provide a minimum space of 7 ft between the air-discharge outlet and a nearby obstacle.
  • Page 44 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions 4-6. Dimensions of Wind Ducting Reference diagram for air-discharge chamber (field supply) unit: in. Ceiling panel Ceiling panel 33-1/4 Air direction: Front direction Air direction: Right direction (Ceiling panel dimensions) (Ceiling panel dimensions) (Ceiling panel dimensions) 35-1/4...
  • Page 45 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions 4-7. Dimensions of Wind Ducting Reference diagram for snow-proof ducting (field supply) 31-1/2 Air direction: Air direction: Right direction Front direction Ceiling panel Ceiling panel 31-17/32 31-1/2 (Air intake duct) 53-55/64 33-1/4 (Air outlet duct) 9-1/2...
  • Page 46 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions 4-8. Transporting the Outdoor Unit When transporting the unit, have it delivered as close to the installation site as possible without unpacking. Use a hook for suspending the unit. (Fig. 4-11) CAUTION When hoisting the outdoor unit, pass ropes or straps under the bottom plate as shown in the figure at right.
  • Page 47 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions 4-10. Remove the Brackets Used for Transport After installing the unit, remove the 2 transport brack- ets from the front and rear (4 brackets total). (Fig. 4-14) Remove the 2 screws (8 screws total) Remove the 2 transport brackets from the front and rear (4 brackets total)
  • Page 48 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions 4-12. Prepare the Tubing Material: Use C1220 phosphorous deoxidized copper as described in JIS H3300, “Copper and Copper Alloy Seamless Pipes and Tubes.” (For tubes that are ø1" (ø25.4 mm) or larger, use 1/2H material or H material. For all others use O material.) Tubing size Use the tubing size indicated in the table below.
  • Page 49 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions Tighten each cap as specifi ed below. Valve cap Tightening torque for each cap Service port cap 60 – 100 in.lbs (70 – 120 kgf · cm) (width 19/32") Valve cap 170 –...
  • Page 50 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions 4-14. Optional Distribution Joint Kits See the installation instructions packaged with the distribution joint kit for the installation procedure. Table 2-11 Model name Cooling capacity after distribution Remarks 1. APR-CHRZP900BAB 307.100 BTU/h or less For outdoor unit 2.
  • Page 51 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions Table 2-13 Dimensions for connections of each part Unit: in. Position Dimension ø1-1/2" ø1-1/4" ø1-1/8" ø1" ø7/8" ø3/4" ø5/8" ø1/2" ø3/8" − Tubing size (with thermal insulation) 2. APR-RZP224BAB Use: For indoor unit (Capacity after distribution joint is 76.400 BTU/h or less.) Example: (F below indicates inner diameter.
  • Page 52 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions 4-15. Optional Solenoid Valve Kit Precautions on Installation of Solenoid Valve Kit (1) Clean base metals thoroughly. (2) Use proper ventilation to carry fumes away from the work area. (3) Use a high quality silver based solder of at least 15 % silver.
  • Page 53 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions Specifications ATK-RZP160BAWB Types and specifications of Part ATK-RZP160BAWB tubing connections Number Gas tube: ID5/8" Compatibility 19.100 Total cooling capacity of indoor units Liquid tube : ID3/8" (BTU/h) < 54.600 Suspension hook Power source Single-phase 200V 50/60Hz (supplied by indoor unit)
  • Page 54 Design of W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Installation Instructions Installation of Solenoid Valve Kit 1. Install the relay kit into the indoor unit. Refer to the Installation Manual for the solenoid valve kit. 2. Connect the solenoid valve kit and the relay kit in the field. Suspension hook Gas tube Liquid tube...
  • Page 55 Control of W-3WAY ECO-i SYSTEM Contents 3. Control of W-3WAY ECO-i SYSTEM 1. Main Operating Functions ....................3-3 1-1. Room Temperature Control ...................3-3 1-2. Automatic Control for Heating and Cooling ..............3-4 2. Wireless Remote Controller ....................3-5 Optional Controller (Remote Controller) ................3-5 How to Use the Wireless Remote Controller..............3-5 Receiver ..........................3-8 RCS-SH80AAB.WL for 4-Way Air Discharge Semi-concealed (X Type) ......3-9...
  • Page 56 Control of W-3 WAY ECO-i SYSTEM Contents 5. Simplifi ed Remote Controller ..................3-59 Simplifi ed Remote Controller / RCS-KR1AGB ...............3-59 Operation Buttons ......................3-59 Display ..........................3-61 Operation ........................3-62 Troubleshooting .......................3-63 Tips for Energy Saving ....................3-63 Parts Supplied with Simplifi ed Remote Controller ............3-64 Simplifi...

  • Page 57: Main Operating Functions

    Control of W-3WAY ECO-i SYSTEM 1. Main Operating Functions 1-1. Room Temperature Control The thermostat is turned ON/OFF according to T as shown below. T = Room temperature - Set temperature When remote controller sensor Room temperature = Temperature detected by the remote controller sensor is used When body sensor is used Room temperature = Temperature detected by the body sensor - Intake shift temperature*...

  • Page 58: Automatic Control For Heating And Cooling

    Control of W-3 WAY ECO-i SYSTEM 1. Main Operating Functions 1-2. Automatic Control for Heating and Cooling Automatic Heating/Cooling Control (1) When operation starts, heating or cooling is selected according to the set temperature and the room temperature. Room temperature Set temperature + 2 Cooling Set temperature –...

  • Page 59: Wireless Remote Controller

    Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller Optional Controller (Remote Controller) Wireless Remote Controller / RCS-SH80AAB.WL (for X Type) / RCS-TRP80AAB.WL (for A, T Type) / RCS- BH80AAB.WL (for U, D Type) / RCS - SH1AAB (for K Type) / RCS - XM18AAB.WL How to Use the Wireless Remote Controller B: Transmitter O: Remote control sensor...
  • Page 60 Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller F: FILTER button If a separately installed signal receiver is being employed, this button is used to turn off its filter lamp. When the filter lamp has lighted, first clean the filter, and then press the FILTER button to turn off the filter lamp.
  • Page 61 Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller Indicator when swing operation is stopped Fan and heating Cooling and drying During cooling and drying, the flap does not stop at the downward position. Even if the flap is stopped at the downward position during the swing operation, it does not stop until it moves to the third position from the top.

  • Page 62: Receiver

    Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller Receiver The signal receivers with the exception of the separately installed signal receiver are mounted on the indoor units. X, XM type A, T type Separately installed signal receiver (U, D type) K type A: Receiver This section picks up infrared signals from the wireless remote control unit (transmitter).

  • Page 63: Rcs-Sh80Aab.wl For 4-Way Air Discharge Semi-Concealed (X Type)

    Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller How to Install the Wireless Remote Controller Receiver RCS-SH80AAB.WL for 4-Way Air Discharge Semi- Concealed (X Type) Indoor unit Indoor unit drain tube side refrigerant tube side 2-1. Installing the Receiver Unit The only corner where the receiver unit can be installed is the Receiver unit one shown in Fig.
  • Page 64 Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller 2-2. Accessories Q'ty Q'ty Parts Parts AAA alkaline battery Receiver Tapping screw unit 5/32” × 5/8” Clamp Remote Fastening screw control unit 5/32” × 15/32” Remote control holder 2-3. Wiring the Receiver Unit Connection diagram Receiver PCB Indoor unit...
  • Page 65 Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller (1) To assign the wired remote controller as the sub unit, locate the address connector at the rear of the wired remote controller PCB and disconnect it. Reconnect it to the sub unit position. (2) To assign the wireless remote controller as the sub unit, locate the dip switch [S003] on the wireless receiver unit PCB.

  • Page 66: Rcs-Xm18Aab.wl For 4Way Air Discharge Semi-Concealed (Xm Type)

    Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller RCS-XM18AAB.WL for 4Way Air Discharge Semi- Concealed (XM Type) 2-6. Installing the Receiver Unit As the receiver can only be installed in the cornerwhere the panel wire comes out, as shown in Fig. 3-7, consideration should be given to orientation when fi...
  • Page 67 Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller 2-7. Accessories 2-8. Wiring the Receiver Unit Connection diagram Connect the wire from the receiver unit to the CN130 on the indoor PCB. 2-9. Precautions on Simultaneous Installation of Wired Remote Controller and Wireless Remote Controller By installing a wired remote controller, the wireless remote controller kit can permit dual remote control operation at the same time.
  • Page 68 Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller (1) To assign the wired remote controller as the sub unit, locate the address connector at the rear of the wired Receiver remote controller PCB and disconnect it. Reconnect it to unit the sub unit position.

  • Page 69: Ceiling-Mounted (T Type)

    Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller RCS-TRP80AAB.WL for 1 Way Air Discharge Semi Concealed (A Type) and Ceiling-Mounted (T Type) 2-10. Installing the Receiver Unit Side panel (1) To take off the side panel, open the intake grille and re- Panel move the screw.
  • Page 70 Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller 2-11. Accessories Supplied with Unit Parts Q'ty Q'ty Parts AAA alkaline battery Receiver unit Tapping screw Remote control unit 5/32” × 5/8” Remote control holder 2-12. Wiring the Receiver Unit Connection diagram Receiver unit Indoor unit Remote...
  • Page 71 Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller When 1 indoor unit is operated with 2 remote controllers: (The indoor unit runs according to which of the remote controllers is assigned as the main or sub unit.) * Use field wiring cables with a Wireless receiver unit Wired remote controller cross-sectional area of at least...

  • Page 72: Concealed Duct High-Static Pressure (D Type)

    Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller RCS-BH80AAB.WL for Concealed Duct(U Type) and Concealed Duct High-Static Pressure(D Type) 2-15. Accessories Supplied with Separate Receiver Unit Parts Q'ty Parts Q'ty Separate Spacer receiver unit (provided 7-7/8” Wire joints power cable) Plate mounting Clamp...
  • Page 73 Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller For flush mounting into a wall, install the separate receiver Face plate unit in a metal switch box (field supply) that has been recessed into the wall in advance. Insert a fl athead screwdriver or similar tool into the notch, and remove the face plate.
  • Page 74 Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller Insert a screwdriver or similar tool into the notch at the bottom to remove the receiver nameplate. Cut a section out of the ceiling along the provided paper pattern (3 − 47/64" × 2"). Pass the wire through the provided mounting bracket and insert the bracket into the installation hole.
  • Page 75 Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller 2-15. Wiring the Separate Receiver Unit Use wires that are AWG#20 to AWG#14 in diameter. The wiring length must not exceed 1320 ft. <Flush Mounting> Connection diagram Indoor unit Separate remote controller receiver unit terminal board Power wire from...
  • Page 76 Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller 2-16. Important Information for Installation of 2 Separate Receiver Units When using 2 receiver units to operate 1 or more indoor units at the same time, follow the procedure below to install them. Installation method If 2 remote controllers are installed, set one of them as the “main remote controller”...
  • Page 77 Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller 2-17. Test Run Setting Remove the receiver unit face plate, and set the DIP switch to “Test Run - ON” position. Run the air conditioner using the wireless remote control- ler by pressing the “ON/OFF” button. All LEDs (“RUN,”...

  • Page 78: Rcs-Sh1Aab For Wall-Mounted (K Type)

    Control of W-3WAY ECO-i SYSTEM 2. Wireless Remote Controller RCS-SH1AAB for Wall-Mounted (K Type) 2-18. When Using Wireless Remote Controller Instead Of Wired Remote Controller When the wireless remote controller is to be used, slide the switch on the indoor unit control PCB. •...

  • Page 79: Timer Remote Controller

    Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Timer Remote Controller/RCS-TM80BG How to Use the Timer Remote Controller Operating buttons Display 15 14 29 26 3-25...

  • Page 80: Names And Operations

    Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Names and Operations Operation Section (Refer to the previous page) Start/Stop button Ventilation button Pushing this button starts, and pushing again stops the Use this button when you installed a fan available in the unit.
  • Page 81 Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Display Section (Refer to the page 3-22) SETTING indication Operation mode change control indication Displays when an operation mode is entered by the re- Appears when the timer program is being set. mote control unit, while another operation mode has been UNIT indication already selected.
  • Page 82 Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller INSTALLATION MANUAL FOR TIMER REMOTE CONTROLLER Accessories for remote controller switch Remote controller Wood screws Wire joints Operation manual Installation manual (with 8 in. wire) How to install the remote controller Do not supply power to the unit or try to operate it until the tubing and wiring to the outdoor unit is completed.
  • Page 83 Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Use AWG#20 to AWG#16 wires. Provided wire joint (white) Remote controller wiring can be extended to a maximum Remote controller wiring of 1640 ft. (1) Strip the insulation to approximately 35/64" from the ends of the wires that will be connected.
  • Page 84 Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Fig. 3-27 Fig. 3-28 Caution when installing the remote controller *1 Install the remote controller more than 3-3/8" apart from the wall surface. *2 To install the remote controllers side-by-side, keep the space between each for more than 4-59/64". *3 To install the remote controllers one above the other, keep the space between each for more than 1".

  • Page 85: Setting The Present Time

    Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Setting the Present Time Press and hold for more than 2 seconds to enter in the present day and time setting mode. Once you enter in the setting mode, , “ ”(day) and “time” fl ash. Set “...

  • Page 86: Weekly Program Function

    Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Weekly Program Function Checking Weekly Timer Set the weekly program assigning a given timer to each day of the week. Maximum of 6 programs a day and 42 programs a week can be set. Select the day and the TIMER number you want to program.
  • Page 87 Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Changing the Program Timer To set the weekly program, follow the steps below. Select the program you want to set in the program confi rmation mode, and press . The enters the setting mode of the program currently displayed.
  • Page 88 Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Weekly Program Function (Continued) Pattern 1 4. Set the program pattern. (program step 3) There are 4 program patterns. Pressing repeats the following display patterns. Pattern 2 Pattern 1 The indoor unit starts operation at the programmed time.
  • Page 89 Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Deleting the Program Timer To delete the program timer setting, follow the steps below. Press to enter the program confi rmation mode. Press to select the day of the program you want to de- lete.
  • Page 90 Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Weekly Program Function (Continued) Duplicating the Program Timer You can duplicate the preset program by day. Select the copy source. is pressed in program checking mode , it enters the copy mode (Selecting the copy source ) of the pro- gram timer.

  • Page 91: Outing Function

    Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Outing Function Outing function is a function that prevents the room temperature from increasing too much (or decreasing too much) when no one is in the room. An air conditioner works automatically if this function is set effective. General Performance of the Outing Function COOL / DRY Outing function upper limit...
  • Page 92 Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Outing Function (Continued) Setting the Outing Function Press and hold for more than 2 seconds to display the upper limit temperature setting screen. and the upper limit temperature start fl ashing. (The default value of the upper limit temperature is 99 °F.) Press to select the upper limit temperature and press...

  • Page 93: Sleeping Function

    Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Sleeping Function This function leads you to a comfortable sleep and chang- When the off time comes: es the room temperature during your sleep. The indoor unit stops. You can set the off timer every one hour from 1 to 10 * The temperature returns to the setting at the time when hours.
  • Page 94 Control of W-3WAY ECO-i SYSTEM 3. Timer Remote Controller Sleeping Function (Continued) button does not work. Or if the operation does not start even if is pressed. Check the following table. Item Display of the remote control unit Contents (Lighting/flashing indication) The clock is not set.

  • Page 95: System Controller

    Control of W-3WAY ECO-i SYSTEM 4. System Controller System controller / SHA-KC64UG ● Example of central control with system controller (individually controlled) New control wiring system (S-net link system) Outdoor unit Outdoor unit System without System Remote Group Remote controller controller controller control...

  • Page 96: How To Use The System Controller

    Control of W-3WAY ECO-i SYSTEM 4. System Controller How to use the system controller B:ZONE select A:ALL/ZONE/GR C:GROUP select button SELECT button buttons F:Operation lamp D:ON button E:OFF button G:MODE button H:Temperature setting buttons K:CHECK I:FAN SPEED M:SET button button button N:CL button O:VENTILATION...

  • Page 97: Functions Of Buttons

    Control of W-3WAY ECO-i SYSTEM 4. System Controller Functions of buttons (Continued) D:ON button This button is for turning the selected air conditioner on. E:OFF button This button is for turning the selected air conditioner off. F:Operation lamp This lamp lights when the unit is turned on. G:MODE button Use this button to select one of the following five operations: (AUTO)
  • Page 98 Control of W-3WAY ECO-i SYSTEM 4. System Controller K:CHECK button This button is used only when servicing the air conditioner. Do not use the CHECK button for normal operation. L:CENTRAL button Use this button to inhibit individual operation by remote controller as CTRL follows: 1: Individual ON/OFF operation is inhibited.

  • Page 99: Display

    Control of W-3WAY ECO-i SYSTEM 4. System Controller Display Description A: When the unit is in the heating standby mode, the indicator appears. B: The currently selected operation mode is displayed. C: The currently selected FAN SPEED, Airflow Direction and SWEEP settings are displayed.

  • Page 100: How To Start Group Operation

    Control of W-3WAY ECO-i SYSTEM 4. System Controller How to start group operation To start group operation Stop Power Turn the power supply switch on more than 5 hours before starting operation. Press the SELECT button and select GROUP. Select the ZONE No. including the group to be operated by pressing ZONE button. Select the GROUP No.

  • Page 101: How To Start Collective Operation

    Control of W-3WAY ECO-i SYSTEM 4. System Controller How to start collective operation To start collective operation (ALL or ZONE) Stop Power Turn the power supply switch on 5 hours or more bofore starting operation. Press the SELECT button and select ALL or ZONE. In case of ZONE collective operation.

  • Page 102: How To Install The System Controller

    Control of W-3WAY ECO-i SYSTEM 4. System Controller ■ How to install the system controller Do not supply power to the unit or try to operate it until the tubing and wiring to the outdoor unit is completed. 4-1. System Controller Installation Switch box (no cover) ●...

  • Page 103: Electrical Wiring

    Control of W-3WAY ECO-i SYSTEM 4. System Controller Electrical wiring Indoor unit PCB How to connect electrical wiring (1) Connect B1, B2 to indoor PCB T10 connector using (YEL) the accessory 6P connector. (with fuse) (*No polarity) Total wire length is less than 985 ft. and size is AWG#18.

  • Page 104: Address Switch Setting

    Control of W-3WAY ECO-i SYSTEM 4. System Controller ■ Address switch setting Main/sub selection switch OFF: System controller operates as main controller. ON: System controller operates as sub-controller. ALL/ZONE mode selection switch ALL mode: All indoor units can be controlled by system controller ZONE 1, 2, 3, 4 mode: Indoor units in one of zone 1, 2, 3, or 4 can be controlled by system controller.
  • Page 105 Control of W-3WAY ECO-i SYSTEM 4. System Controller Weekly timer input switches. System controller operation can be set when weekly timer activates (ON/OFF). Switch No. System controller operation Timer OFF→ON Timer ON→OFF All ON All OFF No change All OFF Individual control All indoor units to of all indoor units...

  • Page 106: Mode Setting

    Control of W-3WAY ECO-i SYSTEM 4. System Controller ■ Mode setting Central control Remote control According to function of each system controller, set mode mode SW1 as Fig. 3-33. 3 4 5 6 3 4 5 6 Central control/Remote control mode ●...

  • Page 107: How To Perform Zone Registration

    Control of W-3WAY ECO-i SYSTEM 4. System Controller ■ How to perform zone registration To operate the system controller properly, zone registration is required after finishing the test run (and after setting all indoor unit addresses) using one of the following methods. (a) Zone registration using the remote controller (RCS-TM80BG) Refer to page 3-55 (b) Zone registration using the system controller (SHA-KC64UG)

  • Page 108: Zone Registration Table

    Control of W-3WAY ECO-i SYSTEM 4. System Controller ■ ZONE registration table Indoor unit Indoor unit Central Central address address ZONE GROUP Unit location ZONE GROUP Unit location address address (UNIT No.) (UNIT No.) NOTE Assign indoor unit addresses to the desired positions (central addresses) manually.
  • Page 109 Control of W-3WAY ECO-i SYSTEM 4. System Controller Zone registration using the remote controller (RCS-TM80BG) (Determination of central address) ● In this case, after confirming which indoor unit is connected to the remote controller and that the air conditioner in the OFF state, you set the central addresses one at a time.
  • Page 110 Control of W-3WAY ECO-i SYSTEM 4. System Controller Zone registration using the system controller (SHA-KC64UG) ● In this case, you set all Central addresses by If no data is registered system controller at once manually. no number is ZONE ZONE displayed.
  • Page 111 Control of W-3WAY ECO-i SYSTEM 4. System Controller Automatic zone registration using the system controller (SHA-KC64UG) Press the buttons at the same ZONE time for more than 4 seconds. ZONE ZONE and CODE No. C1 will flash. Select CODE. No. C2 by pressing ( ) button and press the button.

  • Page 112: How To Check Overlapping Of Central Address No

    Control of W-3WAY ECO-i SYSTEM 4. System Controller How to check overlapping of central address No. Press the buttons at the same ZONE time for more than 4 seconds. ZONE ZONE and CODE No. C1 will flash. Select CODE. No. C3 by pressing ( ) button and press the button.

  • Page 113: Simplifi Ed Remote Controller

    Control of W-3WAY ECO-i SYSTEM 5. Simplifi ed Remote Controller Simplifi ed Remote Controller / RCS-KR1AGB Operation Buttons C: Temper at ure set ting but tons D: FAN SPEED selector but ton A: ON/OFF oper ation B: MODE but ton but ton G: Test but ton E: FLAP but ton...
  • Page 114 Control of W-3WAY ECO-i SYSTEM 5. Simplifi ed Remote Controller : FAN SPEED selector button (AUTO) : The air conditioner automatically decides the fan speed. (HI) : High fan speed (MED) : Medium fan speed (LO) : Low fan speed : FLAP button 1.

  • Page 115: Display

    Control of W-3WAY ECO-i SYSTEM 5. Simplifi ed Remote Controller Display Description A: This is displayed to indicate that the system controller is being used for control. When indicator is fl ashing on the display, the operation is not accepted by the system controller.

  • Page 116: Operation

    Control of W-3WAY ECO-i SYSTEM 5. Simplifi ed Remote Controller Operation STEP 4 STEP 3 STEP 2 STEP 1 STEP 5 NOTE To warm up the system, the power mains must be turned on at least fi ve (5) hours be- fore operation.

  • Page 117: Troubleshooting

    Control of W-3WAY ECO-i SYSTEM 5. Simplifi ed Remote Controller Troubleshooting If your air conditioner does not work properly, fi rst check the following points before requesting service. If It still does not work properly, contact your dealer or a service center. Trouble Possible Cause Remedy...

  • Page 118: Parts Supplied With Simplifi Ed Remote Controller

    Control of W-3WAY ECO-i SYSTEM 5. Simplifi ed Remote Controller Parts Supplied with Simplifi ed Remote Controller Supplied parts Supplied parts Simplified remote Spacers controller (comes with 7-7/8” wire) Wire joints Machine screws × 25 or 5/32” × 1” Wood screws Installation manual Simplifi...

  • Page 119: How To Wire The Simplifi Ed Remote Controller

    Control of W-3WAY ECO-i SYSTEM 5. Simplifi ed Remote Controller Insert a screwdriver or the like in the groove on the lower side of the simplifi ed remote controller body to pry off the back case. (Fig. 3-42) Use the 2 supplied M4 or 5/32" machine screws to secure the simplifi...

  • Page 120: Guidelines For Using 2 Simplifi Ed Remote Controllers

    Control of W-3WAY ECO-i SYSTEM 5. Simplifi ed Remote Controller Guidelines for Using 2 Simplifi ed Remote Controllers This multiple remote controller system controls 1 to 8 indoor units with 2 simplifi ed remote controllers. Set-up procedure 1. One of the 2 simplifi ed remote controllers should be set as main controller.

  • Page 121: Remote Sensor

    Control of W-3WAY ECO-i SYSTEM 6. Remote Sensor Remote Sensor / ART-K45AGB Parts Supplied with Remote Sensor Supplied parts Remote sensor (comes with 7-7/8” wire) Machine screws M4 × 25 or 5/32” × 1” Wood screws Spacers Wire joints Clamp Installation manual Remote Sensor Installation Guidelines Place of installation...

  • Page 122: How To Install The Remote Sensor

    Control of W-3WAY ECO-i SYSTEM 6. Remote Sensor How to Install the Remote Sensor NOTE Do not twist the remote sensor wiring with the power wiring or run it in the same metal conduit, because this may cause malfunction. Install the remote sensor away from sources of electrical noise. Install a noise fi...

  • Page 123: How To Wire The Remote Sensor

    Control of W-3WAY ECO-i SYSTEM 6. Remote Sensor How to Wire the Remote Sensor Connection diagram Terminal block Remote for wiring the sensor remote controller of the indoor unit Wiring from remote Connector sensor Wiring for remote sensor (supplied locally) 1: AWG#20 to AWG#15 wires are used for lead wires.
  • Page 125 W-3WAY ECO-i SYSTEM Unit Specifi cations Contents 4. W-3WAY ECO-i SYSTEM UNIT SPECIFICATIONS 1. Outdoor Unit ........................4-2 1-1. Specifi cations .......................4-2 1-2. Dimensional Data ......................4-7 1-3. Multiple Unit Installation Example ................4-8 1-4. Refrigerant Flow Diagram ...................4-10 1-5. Noise Criterion Curves ....................4-11 2.

  • Page 126: Outdoor Unit

    W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Outdoor Unit 1-1. Specifi cations Unit Specifi cations (1) MODEL NAME W-3WAY ECO-i Capacity Control Outdoor Unit <10 horsepower> MODEL No. CHDZ09053 SOURCE 208-230V/3ø/60Hz PERFORMANCE Cooling capacity BTU / h (kW) 95,500 (28.0) Heating capacity BTU / h (kW) 107,500 (31.5)
  • Page 127 W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Outdoor Unit Unit Specifi cations (2) MODEL NAME W-3WAY ECO-i Capacity Control Outdoor Unit <16 horsepower> MODEL No. CHDZ14053 SOURCE 208-230V/3ø/60Hz PERFORMANCE Cooling capacity BTU / h (kW) 153,600 (45.0) Heating capacity BTU / h (kW) 170,600 (50.0) Height in.
  • Page 128 W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Outdoor Unit Unit Specifi cations (3) MODEL NAME W-3WAY ECO-i Capacity Control Outdoor Unit <20 horsepower> GENERAL MODEL No. WCHDZ20053 COMPONENT OUTDOOR UNIT CHDZ09053 CHDZ09053 SOURCE 208-230V/3ø/60Hz 208-230V/3ø/60Hz PERFORMANCE Cooling capacity BTU / h (kW) 191,000 (56.0) Heating capacity BTU / h (kW)
  • Page 129 W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Outdoor Unit Unit Specifi cations (4) MODEL NAME W-3WAY ECO-i Capacity Control Outdoor Unit <26 horsepower> GENERAL MODEL No. WCHDZ26053 COMPONENT OUTDOOR UNIT CHDZ14053 CHDZ09053 SOURCE 208-230V/3ø/60Hz 208-230V/3ø/60Hz PERFORMANCE Cooling capacity BTU / h (kW) 249,100 (73.0) Heating capacity BTU / h (kW)
  • Page 130 W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Outdoor Unit Unit Specifi cations (5) MODEL NAME W-3WAY ECO-i Capacity Control Outdoor Unit <32 horsepower> GENERAL MODEL No. WCHDZ32053 COMPONENT OUTDOOR UNIT CHDZ14053 CHDZ14053 SOURCE 208-230V/3ø/60Hz 208-230V/3ø/60Hz PERFORMANCE Cooling capacity BTU / h (kW) 307,200 (90.0) Heating capacity BTU / h (kW)

  • Page 131: Dimensional Data

    W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Outdoor Unit 1-2. Dimensional Data CHDZ09053/14053...

  • Page 132: Multiple Unit Installation Example

    W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Outdoor Unit 1-3. Multiple Unit Installation Example...
  • Page 133 W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Outdoor Unit Position of center of gravity Position of center Position of center of gravity(mm) of gravity(In.) Weight Weight MODEL MODEL (lbs) (kg) SPW-C0705DXHN8 CHDZ09053 13-1/8 27-1/2 SPW-C0905DXHN8 CHDZ14053 14-3/4 19-1/8 25-3/4 SPW-C1155DXHN8 SPW-C1305DXHN8 31-1/8 (Installation hole pitch) SPW-C1405DXHN8...

  • Page 134: Refrigerant Flow Diagram

    W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Outdoor Unit 1-4. Refrigerant Flow Diagram CHDZ09053 High pressure switch Distribution joint kit Low pressure sensor (Purchased separately) (AC1) Compressor (INV) Compressor separator Balance tube ø 3/8" Oil drain Suction tube ø 7/8" For LP High pressure sensor...

  • Page 135: Noise Criterion Curves

    W-3WAY ECO-i SYSTEM Unit Specifi cations 1. Outdoor Unit 1-5. Noise Criterion Curves CHDZ09053 / 14053 MODEL CHDZ09053 MODEL CHDZ14053 60Hz 60Hz SOUND LEVEL SOUND LEVEL 55.0 62.0 dB(A) dB(A) Standard mode Standard mode (Quiet mode 52.0) (Quiet mode 59.0) (Cooling/Heating) (Cooling/Heating) Quiet mode...

  • Page 136: Way Air Discharge Semi-Concealed Type (X, Xm Type)

    W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) 2-1. Specifi cations Unit specifi cations (A) MODEL No. Indoor Unit XHX1252 SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 12,000 14,000 Capacity...
  • Page 137 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) Unit specifi cations (B) MODEL No. Indoor Unit XHX1852 SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 19,000 21,000 Capacity Air circulation (Hi / Me / Lo)
  • Page 138 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) Unit specifi cations (C) MODEL No. Indoor Unit XHX2452 SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 25,000 27,000 Capacity Air circulation (Hi / Me / Lo)
  • Page 139 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) Unit specifi cations (D) MODEL No. Indoor Unit XHX3652 SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 36,000 39,000 Capacity 10.6...
  • Page 140 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (XM Type) Unit specifi cations (E) MODEL No. Indoor Unit XMHX1252 SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 12,000 14,000 Capacity Air circulation (Hi / Me / Lo)
  • Page 141 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (XM Type) Unit specifi cations (F) MODEL No. Indoor Unit XMHX1852 SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 19,000 21,000 Capacity Air circulation (Hi / Me / Lo)

  • Page 142: Major Component Specifi Cations

    W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) 2-2. Major Component Specifi cations Indoor unit (A) MODEL No. XHX1252 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-SXRP56B-B (Microprocessor) Fan...(Number diameter) in.
  • Page 143 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) Indoor unit (B) MODEL No. XHX1852 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-SXRP56B-B (Microprocessor) Fan...(Number diameter) in. (mm) Turbo (1...ø18-1/8 (ø460)) Fan motor Model...Nominal output DK8-53B280HB...50W...
  • Page 144 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) Indoor unit (C) MODEL No. XHX2452 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-SXRP56B-B (Microprocessor) Fan...(Number diameter) in. (mm) Turbo (1...ø18-1/8 (ø460)) Fan motor Model...Nominal output DK8-53B280HB...50W...
  • Page 145 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) Indoor unit (D) MODEL No. XHX3652 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-SXRP56B-B (Microprocessor) Fan...(Number diameter) in. (mm) Turbo (1...ø18-1/8 (ø460)) Fan motor Model...Nominal output DK8-93C280HB...90W...
  • Page 146 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (XM Type) Indoor unit (E) MODEL No. XMHX1252 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-XM075XH (Microprocessor), POW-XM075XH Fan...(Number diameter) in. (mm) Turbo (1...ø12-5/8 (ø322), L5-3/4 (L147)) Fan motor Model...Nominal output...
  • Page 147 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (XM Type) Indoor unit (F) MODEL No. XMHX1852 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-XM075XH (Microprocessor), POW-XM075XH Fan...(Number diameter) in. (mm) Turbo (1...ø12-5/8 (ø322), L5-3/4 (L147)) Fan motor Model...Nominal output...

  • Page 148: Dimensional Data

    W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) 2-3. Dimensional Data Indoor unit: XHX1252/1852/2452 1-1/8 6-1/4 4-3/4 3-7/8 3-1/2 2-7/8 3-1/2 1-3/8 10-1/8 33-7/8 – 35-7/8 Ceiling opening dimensions 2-3/8 4-1/2 28-1/2 37-3/8 1-3/4 Suspension bolt pitch 20-1/4 15-3/4...
  • Page 149 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) Indoor unit: XHX3652 4-25...
  • Page 150 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (XM Type) Indoor unit: XMHX1252/1852 4-26...

  • Page 151: Noise Criterion Curves

    W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) 2-4. Noise Criterion Curves 60Hz Strong Weak MODEL : XHX1252, XHX1852 MODEL : XHX2452 SOUND LEVEL : STRONG 31 dB(A) SOUND LEVEL : STRONG 34 dB(A) HIGH 29 dB(A) 31 dB(A)

  • Page 152: Air Flow Distance/Temperature Chart

    W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) 2-5. Air Flow Distance/Temperature Chart If an ultra long-life fi lter or high performance fi lter (65% by colorimetric method) is installed, the vertical air throw dis- tance for heating and cooling will be approximately 0.7 ft less than the values shown in the graph below.
  • Page 153 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) XHX2452 Heating : Distribution of wind velocity (Strong wind : Discharge angle approx.65 ) (Room temperature approx.68°F) 4.9 ft/s 3.3 ft/s 1.6 ft/s 0.98 ft/s 16.4 13.1 13.1 16.4...
  • Page 154 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (X Type) XHX3652 Heating : Distribution of wind velocity (Strong wind : Discharge angle approx.65 ) (Room temperature approx.68°F) 4.9 ft/s 3.3 ft/s 1.6 ft/s 0.98 ft/s 16.4 13.1 13.1 16.4...
  • Page 155 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (XM Type) XMHX1252 Heating : Distribution of wind velocity (Strong wind : Discharge angle approx.60 ) (Room temperature approx.68°F) 4.9 ft/s 3.3 ft/s 1.6 ft/s 0.98 ft/s 16.4 13.1 13.1 16.4...
  • Page 156 W-3WAY ECO-i SYSTEM Unit Specifi cations 2. 4-Way Air Discharge Semi-concealed Type (XM Type) XMHX1852 Heating : Distribution of wind velocity (Strong wind : Discharge angle approx.60 ) (Room temperature approx.68°F) 4.9 ft/s 3.3 ft/s 1.6 ft/s 0.98 ft/s 16.4 13.1 13.1 16.4...

  • Page 157: Way Air Discharge Semi-Concealed Type (A Type)

    W-3WAY ECO-i SYSTEM Unit Specifi cations 3. 1-Way Air Discharge Semi-concealed Type (A Type) 3-1. Specifi cations Unit specifi cations (A) AHX0752 MODEL No. Indoor Unit SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 7,500 8,500 Capacity...
  • Page 158 W-3WAY ECO-i SYSTEM Unit Specifi cations 3. 1-Way Air Discharge Semi-concealed Type (A Type) Unit specifi cations (B) AHX0952 MODEL No. Indoor Unit SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 9,600 11,000 Capacity Air circulation (Hi / Me / Lo)
  • Page 159 W-3WAY ECO-i SYSTEM Unit Specifi cations 3. 1-Way Air Discharge Semi-concealed Type (A Type) Unit specifi cations (C) AHX1252 MODEL No. Indoor Unit SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 12,000 14,000 Capacity Air circulation (Hi / Me / Lo)

  • Page 160: Major Component Specifi Cations

    W-3WAY ECO-i SYSTEM Unit Specifi cations 3. 1-Way Air Discharge Semi-concealed Type (A Type) 3-2. Major Component Specifi cations Indoor unit (A) AHX0752 MODEL No. Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-SXRP56B-B (Microprocessor) Fan...(Number diameter) in.
  • Page 161 W-3WAY ECO-i SYSTEM Unit Specifi cations 3. 1-Way Air Discharge Semi-concealed Type (A Type) Indoor unit (B) AHX0952 MODEL No. Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-SXRP56B-B (Microprocessor) Fan...(Number diameter) in. (mm) Centrifugal (1 ... ø 5-1/2 (ø 140)) Fan motor Model...Nominal output DK8-63E280HB...60W...
  • Page 162 W-3WAY ECO-i SYSTEM Unit Specifi cations 3. 1-Way Air Discharge Semi-concealed Type (A Type) Indoor unit (C) AHX1252 MODEL No. Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-SXRP56B-B (Microprocessor) Fan...(Number diameter) in. (mm) Centrifugal (1 ... ø 5-1/2 (ø 140)) Fan motor Model...Nominal output DK8-63E280HB...60W...

  • Page 163: Dimensional Data

    W-3WAY ECO-i SYSTEM Unit Specifi cations 3. 1-Way Air Discharge Semi-concealed Type (A Type) 3-3. Dimensional Data Indoor unit: 7, 9, 12 Type 4-39...

  • Page 164: Noise Criterion Curves

    W-3WAY ECO-i SYSTEM Unit Specifi cations 3. 1-Way Air Discharge Semi-concealed Type (A Type) 3-4. Noise Criterion Curves 60Hz MODEL : AHX0752 MODEL : AHX1252 AHX0952 SOUND LEVEL : HIGH 36 dB(A) / LOW 31dB(A) SOUND LEVEL : HIGH 33 dB(A) / LOW 29dB(A) CONDITION : Under the unit 4.9 ft CONDITION...

  • Page 165: Air Flow Distance/Temperature Chart

    W-3WAY ECO-i SYSTEM Unit Specifi cations 3. 1-Way Air Discharge Semi-concealed Type (A Type) 3-5. Air Flow Distance/Temperature Chart (Immediate wind A blow angle 60 degrees) (Room themperature 68 degrees Fahrenheit) Heating equipment 4.9 ft/s Wind velocity 3.3 ft/s distribution 1.6 ft/s 1.0 ft/s 13.1...

  • Page 166: Concealed Duct Type (U Type)

    W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) 4-1. Specifi cations Unit specifi cations (A) MODEL No. Indoor Unit UHX0752 SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 7,500 8,500 Capacity...
  • Page 167 W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) Unit specifi cations (B) MODEL No. Indoor Unit UHX1252 SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 12,000 14,000 Capacity Air circulation (Hi / Me / Lo) 350 / 300 / 250 Moisture removal (High)
  • Page 168 W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) Unit specifi cations (C) MODEL No. Indoor Unit UHX1852 SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 19,000 21,000 Capacity Air circulation (Hi / Me / Lo) 420 / 370 / 320 Moisture removal (High)
  • Page 169 W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) Unit specifi cations (D) MODEL No. Indoor Unit UHX2452 SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 25,000 27,000 Capacity Air circulation (Hi / Me / Lo) 635 / 530 / 450 Moisture removal (High)
  • Page 170 W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) Unit specifi cations (E) MODEL No. Indoor Unit UHX3652 SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 36,000 39,000 Capacity 10.6 11.4 Air circulation (Hi / Me / Lo)

  • Page 171: Major Component Specifi Cations

    W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) 4-2. Major Component Specifi cations Indoor unit (A) MODEL No. UHX0752 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-UXRP71B-B (Microprocessor) Fan...(Number diameter) in.
  • Page 172 W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) Indoor unit (B) MODEL No. UHX1252 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-UXRP71B-B (Microprocessor) Fan...(Number diameter) in. (mm) Centrifugal (1 ... ø7-1/2 (ø190)) Fan motor Model...Nominal output SFG4X-51C6P...50W...
  • Page 173 W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) Indoor unit (C) MODEL No. UHX1852 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-UXRP71B-B (Microprocessor) Fan...(Number diameter) in. (mm) Centrifugal (1 ... ø7-1/2 (ø190)) Fan motor Model...Nominal output SFG4X-51C6P...50W...
  • Page 174 W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) Indoor unit (D) MODEL No. UHX2452 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-UXRP71B-B (Microprocessor) Fan...(Number diameter) in. (mm) Centrifugal (1 ... ø7-1/2 (ø190)) Fan motor Model...Nominal output KFG4X-71B6P...70W...
  • Page 175 W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) Indoor unit (E) MODEL No. UHX3652 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-UXRP71B-B (Microprocessor) Fan...(Number diameter) in. (mm) Centrifugal (1 ... ø7-1/2 (ø190)) Fan motor Model...Nominal output KFC4X-141A6P...140W...

  • Page 176: Dimensional Data

    W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) 4-3. Dimensional Data Indoor unit : 7, 12, 18 Type 7-1/2 6-1/4 1-1/8 2-3/4 3-3/8 24-3/4 4-1/2 10-1/4 (Air outlet duct flange) 22-7/8 (Suspension bolt pitch) Refrigerant liquid line ø1/4" (ø6.35) Refrigerant gas line ø1/2"...
  • Page 177 W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) Indoor unit: 24 Type 7-1/2 6-1/4 1-1/8 2-3/4 3-3/8 24-3/4 4-1/2 10-1/4 (Air outlet duct flange) 22-7/8 (Suspension bolt pitch) Refrigerant liquid line ø3/8" (ø9.52) (Use the tube connector) Refrigerant gas line ø5/8"...
  • Page 178 W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) Indoor unit: 36 Type 7-1/2 6-1/4 1-1/8 2-3/4 3-3/8 24-3/4 4-1/2 10-1/4 (Air outlet duct flange) 22-7/8 (Suspension bolt pitch) Refrigerant liquid line ø3/8" (ø9.52) Refrigerant gas line ø5/8" (ø15.88) Upper drain port (O.D.
  • Page 179 W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) Flange for Air Intake Duct (Field supply) For Concealed Duct Type Thickness more than T3/64 " 11-3/8 7-7/8 10-1/4 (OD) 8-1/4 Unit: in D (mm(in.)) E (mm(in.)) 200mmP (7-7/8"P) 1 ×...

  • Page 180: Noise Criterion Curves

    W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) 4-4. Noise Criterion Curves 60Hz MODEL : UHX1852 MODEL : UHX0752 UHX1252 SOUND LEVEL : HIGH 29 dB(A), NC 20 / LOW 22 dB(A), NC 13 SOUND LEVEL : HIGH 30 dB(A), NC 23 / LOW 25 dB(A), NC 17 CONDITION : Under the unit 4.9 ft CONDITION...
  • Page 181 W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) MODEL : UHX3652 SOUND LEVEL : HIGH 38 dB(A), NC 30 / LOW 31 dB(A), NC 21 CONDITION : Under the unit 4.9 ft SOURCE : 208 - 230 V, Single-phase, 60 Hz NC-50 NC-40 NC-30...

  • Page 182: Increasing The Fan Speed

    W-3WAY ECO-i SYSTEM Unit Specifi cations 4. Concealed Duct Type (U Type) 4-5. Increasing the Fan Speed Power supply outlet If external static pressure is too great (due to long extension of ducts, for example), the air flow volume may drop too low at each air outlet. Inter-unit control wiring This problem may be solved by increasing the fan speed using the following procedure:...

  • Page 183: Concealed Duct High-Static Pressure Type (D Type)

    W-3WAY ECO-i SYSTEM Unit Specifi cations 5. Concealed Duct High-Static Pressure Type (D Type) 5-1. Specifi cations Unit specifi cations (A) MODEL No. Indoor Unit DHX3652 SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 36,000 39,000 Capacity...
  • Page 184 W-3WAY ECO-i SYSTEM Unit Specifi cations 5. Concealed Duct High-Static Pressure Type (D Type) Unit specifi cations (B) MODEL No. Indoor Unit DHX4852 SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 47,800 54,600 Capacity 14.0...

  • Page 185: Major Component Specifi Cations

    W-3WAY ECO-i SYSTEM Unit Specifi cations 5. Concealed Duct High-Static Pressure Type (D Type) 5-2. Major Component Specifi cations Indoor unit (A) DHX3652 MODEL No. Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-UXRP71B-B (Microprocessor) Fan...(Number diameter) in.
  • Page 186 W-3WAY ECO-i SYSTEM Unit Specifi cations 5. Concealed Duct High-Static Pressure Type (D Type) Indoor unit (B) DHX4852 MODEL No. Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-UXRP71B-B (Microprocessor) Fan...(Number diameter) in. (mm) Centrifugal (1 ... ø7-5/8 (ø220)) Fan motor Model...Nominal output KFC4Q-401A6P...400W...

  • Page 187: Dimensional Data

    W-3WAY ECO-i SYSTEM Unit Specifi cations 5. Concealed Duct High-Static Pressure Type (D Type) 5-3. Dimensional Data Indoor unit : 36, 48 Type 12-1/4 2-1/8 2-1/8 3-7/8 3-7/8 2-1/8 11-3/4 3-1/8 11-3/8 5-1/8 (Suspension bolt pitch) 3-7/8 3-7/8 1-3/8 4-63...

  • Page 188: Noise Criterion Curves

    W-3WAY ECO-i SYSTEM Unit Specifi cations 5. Concealed Duct High-Static Pressure Type (D Type) 5-4. Noise Criterion Curves MODEL : DHX3652 MODEL : DHX4852 SOUND LEVEL : HIGH 45 dB(A), NC 39 SOUND LEVEL : HIGH 47 dB(A), NC 42 CONDITION : Under the unit 4.9 ft CONDITION...

  • Page 189: Indoor Fan Performance

    W-3WAY ECO-i SYSTEM Unit Specifi cations 5. Concealed Duct High-Static Pressure Type (D Type) 5-5. Indoor Fan Performance How to Read the Diagram The vertical axis is the External Static Pressure (in.WG) while the horizontal axis represents the Air Flow (CFM). The characteristic curve for the “H,” “Med, ” and “Lo ” f an speed control. The nameplate values are shown based on the “H ”...

  • Page 190: Ceiling-Mounted Type (T Type)

    W-3WAY ECO-i SYSTEM Unit Specifi cations 6. Ceiling-Mounted Type (T Type) 6-1. Specifi cations Unit specifi cations (A) MODEL No. THX1252 Indoor Unit SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 12,000 14,000 Capacity Air circulation (Hi / Me / Lo)
  • Page 191 W-3WAY ECO-i SYSTEM Unit Specifi cations 6. Ceiling-Mounted Type (T Type) Unit specifi cations (B) THX1852 MODEL No. Indoor Unit SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 19,000 21,000 Capacity Air circulation (Hi / Me / Lo) 450 / 390 / 320 Moisture removal (High) Pints / h...
  • Page 192 W-3WAY ECO-i SYSTEM Unit Specifi cations 6. Ceiling-Mounted Type (T Type) Unit specifi cations (C) THX2452 MODEL No. Indoor Unit SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 25,000 27,000 Capacity Air circulation (Hi / Me / Lo) 650 / 530 / 495 Moisture removal (High) Pints / h...

  • Page 193: Major Component Specifi Cations

    W-3WAY ECO-i SYSTEM Unit Specifi cations 6. Ceiling-Mounted Type (T Type) 6-2. Major Component Specifi cations Indoor unit (A) MODEL No. THX1252 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-SXRP56B-B (Microprocessor) Fan...(Number diameter) in. (mm) Centrifugal (2 ...
  • Page 194 W-3WAY ECO-i SYSTEM Unit Specifi cations 6. Ceiling-Mounted Type (T Type) Indoor unit (B) MODEL No. THX1852 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-SXRP56B-B (Microprocessor) Fan...(Number diameter) in. (mm) Centrifugal (2 ... ø5-1/2 (ø140)) Fan motor Model...Nominal output DK8-63C280HB...60W...
  • Page 195 W-3WAY ECO-i SYSTEM Unit Specifi cations 6. Ceiling-Mounted Type (T Type) Indoor unit (C) MODEL No. THX2452 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-SXRP56B-B (Microprocessor) Fan...(Number diameter) in. (mm) Centrifugal (3 ... ø5-1/2 (ø140)) Fan motor Model...Nominal output DK8-63D280HB...60W...

  • Page 196: Dimensional Data

    W-3WAY ECO-i SYSTEM Unit Specifi cations 6. Ceiling-Mounted Type (T Type) 6-3. Dimensional Data Length Type Air intake 12, 18 33-5/8 35-7/8 8-1/4 44-1/2 46-1/2 8-1/4 Ceiling side 1-1/8 1-1/8 Unit: in. (Suspension bolt pitch) Rear (figure shows view from front) 2-3/8 Left side Right side...

  • Page 197: Noise Criterion Curves

    W-3WAY ECO-i SYSTEM Unit Specifi cations 6. Ceiling-Mounted Type (T Type) 6-4. Noise Criterion Curves 60Hz Strong Weak MODEL : THX1852 MODEL : THX1252 SOUND LEVEL : STRONG 35 dB(A) SOUND LEVEL : STRONG 36 dB(A) HIGH 32 dB(A) HIGH 33 dB(A) 30 dB(A) 30 dB(A)

  • Page 198: Air Flow Distance/Temperature Chart

    W-3WAY ECO-i SYSTEM Unit Specifi cations 6. Ceiling-Mounted Type (T Type) 6-5. Air Flow Distance/Temperature Chart THX1252/1852 Heating : Distribution of wind velocity (Strong wind : Discharge angle approx.54 ) (Room temperature approx.68°F) 4.9 ft/s 3.3 ft/s 1.6 ft/s 0.98 ft/s 13.1 9.8 13.1 16.4 19.7 23.0 26.2 29.5 32.8 Horizontal air flow distance (ft.)
  • Page 199 W-3WAY ECO-i SYSTEM Unit Specifi cations 6. Ceiling-Mounted Type (T Type) THX2452 Heating : Distribution of wind velocity (Strong wind : Discharge angle approx.54 ) (Room temperature approx.68°F) 4.9 ft/s 3.3 ft/s 1.6 ft/s 0.98 ft/s 13.1 9.8 13.1 16.4 19.7 23.0 26.2 29.5 32.8 Horizontal air flow distance (ft.) Heating : Distribution of temperature (Room temperature approx.68°F)

  • Page 200: Wall-Mounted Type (K Type)

    W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) 7-1. Specifi cations Unit specifi cations (A) KHX0752 MODEL No. Indoor Unit SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 7,500 8,500 Capacity Air circulation (Hi / Me / Lo)
  • Page 201 W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) Unit specifi cations (B) KHX0952 MODEL No. Indoor Unit SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 9,600 11,000 Capacity Air circulation (Hi / Me / Lo) 350 / 280 / 210 Moisture removal (High) Pints / h...
  • Page 202 W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) Unit specifi cations (C) KHX1252 MODEL No. Indoor Unit SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 12,000 14,000 Capacity Air circulation (Hi / Me / Lo) 350 / 280 / 210 Moisture removal (High) Pints / h...
  • Page 203 W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) Unit specifi cations (D) KHX1852 MODEL No. Indoor Unit SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 19,000 21,000 Capacity Air circulation (Hi / Me / Lo) 420 / 350 / 280 Moisture removal (High) Pints / h...
  • Page 204 W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) Unit specifi cations (E) KHX2452 MODEL No. Indoor Unit SOURCE 208 - 230 V / 1ø / 60 Hz PERFORMANCE Cooling Heating BTU / h 25,000 27,000 Capacity Air circulation (Hi / Me / Lo) 565 / 495 / 350 Moisture removal (High) Pints / h...

  • Page 205: Major Component Specifi Cations

    W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) 7-2. Major Component Specifi cations Indoor unit (A) MODEL No. KHX0752 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-KR74GXH56A (Microprocessor) Fan...(Number diameter) in. (mm) Cross-flow (1 ...
  • Page 206 W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) Indoor unit (B) MODEL No. KHX0952 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-KR74GXH56A (Microprocessor) Fan...(Number diameter) in. (mm) Cross-flow (1 ... ø3-1/2 (ø88) / 29-1/8 (740)) Fan motor Model...Nominal output UF4Q-31G6P...30W...
  • Page 207 W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) Indoor unit (C) MODEL No. KHX1252 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-KR74GXH56A (Microprocessor) Fan...(Number diameter) in. (mm) Cross-flow (1 ... ø3-1/2 (ø88) / 29-1/8 (740)) Fan motor Model...Nominal output UF4Q-31G6P...30W...
  • Page 208 W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) Indoor unit (D) MODEL No. KHX1852 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-KR74GXH56A (Microprocessor) Fan...(Number diameter) in. (mm) Cross-flow (1 ... ø3-1/2 (ø88) / 29-1/8 (740)) Fan motor Model...Nominal output UF4Q-31G6P...30W...
  • Page 209 W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) Indoor unit (E) MODEL No. KHX2452 Source 208 - 230 V / 1ø / 60 Hz Controller P.C.B. Ass'y CR-KR254GXH56A (Microprocessor) Fan...(Number diameter) in. (mm) Cross-flow (1 ... ø3-7/8 (ø100) / 33-3/8 (848)) Fan motor Model...Nominal output KFT4Q-31A6P-C...30W...

  • Page 210: Dimensional Data

    W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) 7-3. Dimensional Data 7, 9, 12, 18 type 39-1/8 ø3/8” (ø9.52) ø1/2” ø Drain and wiring port Gas tube 12.7) (length: Approx. 15-3/4”) ø1/4” ø Liquid tube 6.35) (length: Approx. 18-1/2”) Drain hose VP13 (length: Approx.

  • Page 211: Noise Criterion Curves

    W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) 7-4. Noise Criterion Curves 60Hz Strong Weak MODEL : KHX0752, KHX0952, KHX1252 MODEL : KHX1852 SOUND LEVEL : STRONG 36 dB(A) SOUND LEVEL : STRONG 39 dB(A) HIGH 32 dB(A) HIGH 35 dB(A) 28 dB(A)

  • Page 212: Air Flow Distance/Temperature Chart

    W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) 7-5. Air Flow Distance/Temperature Chart KHX0752/0952/1252 Air Flow Cooling Temperature Cooling (Strong / Outlet Angle=30 ) (Strong / Outlet Angle=30 ) 4.9 ft/s 78°F 3.9 ft/s 0.98 ft/s 71°F 75°F 68°F 2.0 ft/s...
  • Page 213 W-3WAY ECO-i SYSTEM Unit Specifi cations 7. Wall-Mounted Type (K Type) KHX2452 Air Flow Cooling Temperature Cooling (Strong / Outlet Angle=30 ) (Strong / Outlet Angle=30 ) 68°F 4.9 ft/s 71°F 0.98 ft/s 75°F 78°F 2.0 ft/s 0.98 ft/s 3.0 ft/s 2.0 ft/s 78°F 3.0 ft/s...
  • Page 214 Test Run Contents 5. TEST RUN 1. Preparing for Test Run .......................5-2 2. Test Run Procedure ......................5-3 3. Main Outdoor Unit PCB Setting..................5-4 4. Auto Address Setting ......................5-6 5. Remote Controller Test Run Settings ................5-12 6. Caution for Pump Down ....................5-12 7.

  • Page 215: Preparing For Test Run

    Test Run 1. Preparing for Test Run 1. Preparing for Test Run Before attempting to start the air conditioner, check the fol- lowing. (1) The control wiring is correctly connected and all electrical connections are tight. (2) The transportation pads for the indoor fan have been removed.

  • Page 216: Test Run Procedure

    Test Run 2. Test Run Procedure 2. Test Run Procedure Items to Check Before the Test Run Recheck the items to check before the test run. Turn the remote power switch on at least 5 hours before the test, in order to energize the crank case heater.

  • Page 217: Main Outdoor Unit Pcb Setting

    Test Run 3. Main Outdoor Unit PCB Setting 3. Main Outdoor Unit PCB Setting Examples of the No. of indoor units settings (S005, S004) Indoor unit setting (S005) Indoor unit setting (S004) No. of indoor units (3P DIP switch, blue) (Rotary switch, red) 10 20 30 1 unit (factory setting)
  • Page 218 Test Run 3. Main Outdoor Unit PCB Setting CN003 CN101 CN100 S007 S006 S005 S004 S002 S003 Fig. 5-4...

  • Page 219: Auto Address Setting

    Test Run 4. Auto Address Setting 4. Auto Address Setting Basic wiring diagram: Example (1) • If link wiring is not used (The inter-unit control wires are not connected to multiple refrigerant systems.) Indoor unit addresses can be set without operating the compressors. No.
  • Page 220 Test Run 4. Auto Address Setting Basic wiring diagram: Example (2) • If link wiring is used * When multiple outdoor main units exist, remove the socket that is used to short-circuit the terminal plug (CN003) from all outdoor main unit PCBs except for 1. No.
  • Page 221 Test Run 4. Auto Address Setting Case 1 Automatic Address Setting (no compressor operation) Indoor and outdoor unit power can be turned ON for each system separately. Indoor unit addresses can be set without operating the compressors. Automatic Address Setting from Outdoor Unit On the outdoor main unit control PCB, check that the system address rotary switch (S002) is set to “1”...
  • Page 222 Test Run 4. Auto Address Setting Case 2 Automatic Address Setting in Heating Mode Indoor and outdoor unit power cannot be turned ON for each system separately. In the following, automatic setting of indoor unit addresses is not possible if the compressors are not operating. Therefore perform this process only after completing all refrigerant tubing work.
  • Page 223 Test Run 4. Auto Address Setting Case 3 Automatic Address Setting in Cooling Mode Indoor and outdoor unit power cannot be turned ON for each system separately. In the following, automatic setting of indoor unit addresses is not possible if the compressors are not operating. Therefore perform this process only after completing all refrigerant tubing work.
  • Page 224 Test Run 4. Auto Address Setting Display during automatic address setting On outdoor main unit PCB Do not short-circuit the automatic address setting pin (CN100) again while automatic address setting is in progress. Doing so will cancel the setting operation and will cause LEDs 1 and 2 to turn OFF. Blink alternately When automatic address setting has been successfully completed, both LEDs 1 and 2 turn OFF.

  • Page 225: Remote Controller Test Run Settings

    4. Auto Address Setting Test Run 5. Remote Controller Test Run Settings 6. Caution for Pump Down Request concerning recording the indoor/outdoor unit combination Nos. After automatic address setting has been completed, be sure to record them for future reference. List the outdoor main unit system address and the addresses of the indoor units in that system in an easily visible location (next to the nameplate), using a permanent marking pen or similar means that cannot be abraded easily.

  • Page 226: Meaning Of Alarm Messages

    Test Run 7. Meaning of Alarm Messages 7. Meaning of Alarm Messages Table of Self-Diagnostics Functions and Description of Alarm Displays Alarm messages are indicated by the blinking of LED 1 and 2 (D72, D75) on the outdoor unit PCB. They are also displayed on the wired remote controller.
  • Page 227 Test Run 7. Meaning of Alarm Messages Alarm Possible cause of malfunction message <<P01>> Activation of Thermal protector in indoor unit fan motor is activated. Protective device in indoor unit <<P09>> Improper wiring connections of ceiling panel. protective is activated. device <<P10>>...
  • Page 228 Test Run 7. Meaning of Alarm Messages Alarm messages displayed on system controller Indoor or main outdoor unit is not operating correctly. Serial Error in transmitting serial communication signal Mis-wiring of control wiring between indoor unit, main outdoor unit communication and system controller.
  • Page 229 Electrical Data Contents 6. ELECTRICAL DATA 1. Outdoor Unit ........................6-2 Electric Wiring Diagram CHDZ09053 .................6-2 Electric Wiring Diagram CHDZ14053 .................6-4 2. Indoor Unit ..........................6-6 (1)-1 Electric Wiring Diagram XHX1252/1852/2452/3652 ...........6-6 (1)-2 Electric Wiring Diagram XMHX1252/1852 ..............6-8 Electric Wiring Diagram AHX0752/0952/1252 ............6-9 Electric Wiring Diagram UHX0752/1252/1852/2452/3652 ........6-11 (4)-1 Electric Wiring Diagram DHX3652 ................6-13 (4)-2 Electric Wiring Diagram DHX4852 ................6-15...

  • Page 230: Outdoor Unit

    Electrical Data 1. Outdoor Unit (1) Electric Wiring Diagram CHDZ09053...
  • Page 231 Electrical Data 1. Outdoor Unit Schematic Diagram CHDZ09053...

  • Page 232: Electric Wiring Diagram Chdz14053

    Electrical Data 1. Outdoor Unit (2) Electric Wiring Diagram CHDZ14053...
  • Page 233 Electrical Data 1. Outdoor Unit Schematic Diagram CHDZ14053...

  • Page 234: Indoor Unit

    Electrical Data 2. Indoor Unit (1)-1 Electric Wiring Diagram XHX1252/1852/2452/3652...
  • Page 235 Electrical Data 2. Indoor Unit Schematic Diagram XHX1252/1852/2452/3652...

  • Page 236: Electric Wiring Diagram Xmhx1252/1852

    Electrical Data 2. Indoor Unit (1)-2 Electric Wiring Diagram XMHX1252/1852...

  • Page 237: Electric Wiring Diagram Ahx0752/0952/1252

    Electrical Data 2. Indoor Unit (2) Electric Wiring Diagram AHX0752/0952/1252...
  • Page 238 Electrical Data 2. Indoor Unit Schematic Diagram AHX0752/0952/1252 6-10...

  • Page 239: Electric Wiring Diagram Uhx0752/1252/1852/2452/3652

    Electrical Data 2. Indoor Unit (3) Electric Wiring Diagram UHX0752/1252/1852/2452/3652 6-11...
  • Page 240 Electrical Data 2. Indoor Unit Schematic Diagram UHX0752/1252/1852/2452/3652 6-12...

  • Page 241: Electric Wiring Diagram Dhx3652

    Electrical Data 2. Indoor Unit (4)-1 Electric Wiring Diagram DHX3652 6-13...
  • Page 242 Electrical Data 2. Indoor Unit Schematic Diagram DHX3652 6-14...

  • Page 243: Electric Wiring Diagram Dhx4852

    Electrical Data 2. Indoor Unit (4)-2 Electric Wiring Diagram DHX4852 6-15...
  • Page 244 Electrical Data 2. Indoor Unit Schematic Diagram DHX4852 6-16...

  • Page 245: Electric Wiring Diagram Thx1252/1852/2452

    Electrical Data 2. Indoor Unit (5) Electric Wiring Diagram THX1252/1852/2452 6-17...
  • Page 246 Electrical Data 2. Indoor Unit Schematic Diagram THX1252/1852/2452 6-18...

  • Page 247: Electric Wiring Diagram Khx0752/0952/1252/1852

    Electrical Data 2. Indoor Unit (6)-1 Electric Wiring Diagram KHX0752/0952/1252/1852 6-19...
  • Page 248 Electrical Data 2. Indoor Unit Schematic Diagram KHX0752/0952/1252/1852 6-20...

  • Page 249: Electric Wiring Diagram Khx2452

    Electrical Data 2. Indoor Unit (6)-2 Electric Wiring Diagram KHX2452 6-21...
  • Page 250 Electrical Data 2. Indoor Unit Schematic Diagram KHX2452 6-22...
  • Page 251 PCB and Functions Contents 7. PCB AND FUNCTIONS 1. Outdoor Unit Control PCB ....................7-2 1-1. Outdoor Unit Control PCB CR-CHDZ14053 ..............7-2 1-2. Outdoor Unit Filter PCB FIL-CHDX14053 ..............7-3 1-3. Outdoor Unit HIC Board HIC-CHDX14053 ..............7-3 1-4. Functions (for CR-CHDZ14053) ...................7-4 2.

  • Page 252: Outdoor Unit Control Pcb

    PCB and Functions 1. Outdoor Unit Control PCB 1-1. Outdoor Unit Control PCB CR-CHDZ14053 S002 S004 S003 S005 A. ADD (CN100) pin OAC (CN105) pin MODE (CN101) pin Alarm LED AP (CN102) pin (LED1, 2) STOP (CN104) pin CHK (CN023) pin RUN (CN103) pin S006 TEST (CN022) pin...

  • Page 253: Outdoor Unit Filter Pcb Fil-Chdx14053

    PCB and Functions 1. Outdoor Unit Control PCB 1-2. Outdoor Unit Filter PCB FIL-CHDX14053 1-3. Outdoor Unit HIC Board HIC-CHDX14053...

  • Page 254: Functions (For Cr-Chdz14053)

    PCB and Functions 1. Outdoor Unit Control PCB 1-4. Functions (for CR-CHDZ14053) Automatic address setting 2P plug (white): Automatic address setting pin (CN100) • Short-circuit this pin for 1 second or longer to automatically set the addresses at the indoor units that are connected to that outdoor unit and are within the same system.
  • Page 255 PCB and Functions 1. Outdoor Unit Control PCB Terminal plug 3P plug (black): For communications circuit impedance matching • A connecting socket (3P, black) is attached to the terminal plug at the time of shipment from the factory. • In the case of link wiring which combines the inter-unit control wiring for multiple systems into a single communications circuit, leave the connecting socket in place at only one of the outdoor units, and move the socket from the "SHORT"...
  • Page 256 PCB and Functions 1. Outdoor Unit Control PCB Table 7-1. Setting the System Address [S002: Rotary switch (black), S003: 2P DIP (blue)] S003 setting Outdoor system address S002 setting 1P (10s digit) 2P (20s digit) 1 refrigerant system only Link wiring Table 7-2.

  • Page 257: Indoor Unit Control Pcb Switches And Functions

    PCB and Functions 2. Indoor Unit Control PCB Switches and Functions Indoor Unit Control PCB Switches and Functions Indoor unit control PCB T10: 6P plug (yellow): Used for remote control. (Refer to the remote control section.) (CN61) Control items: (1) Start/stop input (2) Remote controller prohibit input (3) Start signal output (4) Alarm signal output...

  • Page 258: For Ac Fan Motor (Cr-Uxrp71B-B)

    PCB and Functions 2. Indoor Unit Control PCB Switches and Functions For AC Fan Motor (CR-UXRP71B-B) EEPROM (IC010) OC (CN040) EMG (CN044) VARISTOR (VA100) JP001 OPTION (CN060) EXCT (CN073) GRL (CN020) DISP (CN072) POWER LED (D002) CHK (CN071) FAN DRIVE (CN032) FILTER (CN070) T10 (CN061) For DC Fan Motor (CR-SXRP56B-B)
  • Page 259 PCB and Functions 2. Indoor Unit Control PCB Switches and Functions For XM Type (CR-XM075XH, POW-XM075XH) POWER LED EXCT (D002) (CN073) FILTER (CN070) (CN062) DISP (CN061) (CN063) TEST OPTION (CN064) (CN060) JP001 FAN DRIVE (CN032) JP003 (CN044) (CN040) CR-XM075XH POW-XM075XH...

  • Page 260: Cr1 (For Cr-Kr74Gxh56A/Khx0752~Khx1852) (Wall-Mounted)

    PCB and Functions 2. Indoor Unit Control PCB Switches and Functions Explanation of Functions Indoor Unit Control PCB 2-2. CR1 (for CR-KR74GXH56A/KHX0752~KHX1852) (Wall-Mounted) If the fuse (F002) has CHK (test) pin blown, determine the DISP pin cause and correct it. Then change the socket from the OC plug to the EMG plug.

  • Page 261: Cr1 (For Cr-Kr254Gxh56A/Khx2452) (Wall-Mounted)

    PCB and Functions 2. Indoor Unit Control PCB Switches and Functions 2-3. CR1 (for CR-KR254GXH56A/KHX2452) (Wall-Mounted) If the fuse (F002) has blown, determine the CHK (test) pin cause and correct it. Then change the socket DISP pin from the OC plug to the EMG plug.

  • Page 262: Cr2 (For Pow-Kr74Gxh56/Khx0752~Khx2452) (Wall-Mounted)

    PCB and Functions 2. Indoor Unit Control PCB Switches and Functions 2-4. CR2 (for POW-KR74GXH56/KHX0752~KHX2452) (Wall-Mounted) Control circuit fuse (F201) T20 plug TRANS-S plug OP1 plug 7-12...

  • Page 263: Explanation Of Functions (Cr-Kr74Gxh56A, Cr-Kr254Gxh56A, Pow-Kr74Gxh56)

    PCB and Functions 2. Indoor Unit Control PCB Switches and Functions 2-5. Explanation of Functions (CR-KR74GXH56A, CR-KR254GXH56A, POW-KR74GXH56) 6P fl ag (yellow): Used for remote control. (CN105) Control items: Start/stop input Remote controller prohibit input (for remote control) Start signal output Alarm signal output EXCT 2P plug (red): Can be used for demand control.
  • Page 264 PCB and Functions 2. Indoor Unit Control PCB Switches and Functions OPTION 6P (white): Outputs external signals as shown in the fi gure below. (CN014) Relay (DC 12V, field supply) (Note) Fan signal OPTION (white) Heat start signal DC 12V Cool start signal Indoor unit control PCB (CR1) Thermostat signal...
  • Page 265 SANYO Electric Co., Ltd. 200804E DC Printed in Japan...

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Eco-i uhx0752Eco-i khx0752Eco-i ahx0952Eco-i khx0952Eco-i xhx1252Eco-i xmhx1252 ... Show all

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