Gree GWC18MC-D3DNA3F/I User manual

GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
Change for Life
Service Manual
Model:GWC18MC-D3DNA3F
GWC18MC-D3DNA5F
GWH18MC-D3DNA3F
GWH18MC-D3DNA5F
GWH18MC-D3DNA8F
GWC24MD-D3DNA3F
GWC24MD-D3DNA5F
GWH24MD-D3DNA3F
GWH24MD-D3DNA5F
GWH24MD-D3DNA8F
(Refrigerant R410A)

Service Manual
Table of Contents
Table of Contents
Table of Contents
Part Ⅰ: Technical Information......................................................................... 1
1. Summary........................................................................................................................ 1
2. Specications............................................................................................................ 2
2.1 Specication Sheet............................................................................................................. 2
2.2 Operation Characteristic Curve ........................................................................................ 10
2.3 Capacity Variation Ratio According to Temperature ......................................................... 10
2.4 Cooling and Heating Data Sheet in Rated Frequency ......................................................11
2.5 Noise Curve.......................................................................................................................11
3. Outline Dimension Diagram........................................................................ 12
3.1 Indoor Unit........................................................................................................................ 12
3.2 Outdoor Unit ..................................................................................................................... 13
4. Refrigerant System Diagram...................................................................... 14
5. Electrical Part........................................................................................................... 15
5.1 Wiring Diagram................................................................................................................. 15
5.2 PCB Printed Diagram ....................................................................................................... 20
6. Function and Control........................................................................................ 24
6.1 Remote Controller Introduction ........................................................................................ 24
6.2 Brief Description of Modes and Functions........................................................................ 28
Part Ⅱ: Installation and Maintenance ................................................... 35
7. Notes for Installation and Maintenance............................................ 35
8. Installation.................................................................................................................. 37
8.1 Installation Dimension Diagram........................................................................................ 37
8.2 Installation Parts-checking .............................................................................................. 39
8.3 Selection of Installation Location...................................................................................... 39
8.4 Electric Connection Requirement .................................................................................... 39
8.5 Installation of Indoor Unit.................................................................................................. 39
8.6 Installation of Outdoor Unit............................................................................................... 42
8.7 Vacuum Pumping and Leak Detection ............................................................................. 43
8.8 Check after Installation and Test Operation ..................................................................... 43

Table of Contents
Service Manual
Table of Contents Table of Contents
9. Maintenance.................................................................................................................44
9.1 Precautions before Maintenance.........................................................................................44
9.2 Error Code List ....................................................................................................................45
9.3 Troubleshooting for Main Malfunction ................................................................................. 56
9.4 Troubleshooting for Normal Malfunction..............................................................................70
10. Exploded View and Parts List ................................................................... 72
10.1 Indoor Unit.........................................................................................................................72
10.2 Outdoor Unit ......................................................................................................................82
11. Removal Procedure............................................................................................92
11.1 Removal Procedure of Indoor Unit ....................................................................................92
11.2 Removal Procedure of Outdoor Unit ...............................................................................102
Appendix:........................................................................................................................... 112
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................... 112
Appendix 2: Conguration of Connection Pipe........................................................................ 112
Appendix 3: Pipe Expanding Method ...................................................................................... 113
Appendix 4: List of Resistance for Temperature Sensor ......................................................... 114

1
Technical Information
Service Manual
1. Summary
Part Ⅰ: Technical Information
Indoor Unit:
GWC18MC-D3DNA3F/I
GWH18MC-D3DNA3F/I
GWC24MD-D3DNA3F/I
GWH24MD-D3DNA3F/I
GWH18MC-D3DNA8F/I
GWH24MD-D3DNA8F/I
GWC18MC-D3DNA5F/I
GWH18MC-D3DNA5F/I
GWC24MD-D3DNA5F/I
GWH24MD-D3DNA5F/I
Outdoor Unit:
GWC18MC-D3DNA3D/O
GWH18MC-D3DNA3D/O
GWH18MC-D3DNA3D/O(electric heating band)
GWC24MD-D3DNA3D/O
GWH24MD-D3DNA3D/O
GWH24MD-D3DNA3D/O(electric heating band)
Remote Controller:
YB1FAF(XFAN)
ON/OFF MODE
FAN
CLOCK TIMER ON
X-FAN TEMP
TIMER OFF
TURBO S LEEP LIGH T

2Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model GWC18MC-D3DNA3F
GWC18MC-D3DNA5F
Product Code CB171008800
CB162009400
Power
Supply
Rated Voltage V ～208/230
Rated Frequency Hz 60
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min ～Max) Btu/h 18000(5970~22350)
Heating Capacity(Min ～Max) Btu/h /
Cooling Power Input(Min ～Max) W 1500(300~2650)
Heating Power Input(Min ～Max) W /
Cooling Current Input A 6.65
Heating Current Input A /
Rated Input W 2650
Rated Current A 11.76
Air Flow Volume (S/H/M/L) CFM 500/459/383/324
Dehumidifying Volume Pint/h 3.8
EER (Btu/h)/W 12
COP (Btu/h)/W /
SEER 18
HSPF /
Application Area yd2 32 2/7-50 1/4
Indoor Unit
Indoor Unit Model GWC18MC-D3DNA3F/I
GWC18MC-D3DNA5F/I
Indoor Unit Product Code CB171N08800
CB162N09400
Fan Type Cross-ow
Fan Diameter Length(DXL) inch Φ3 6/7X28
Cooling Speed(S/H/M/L) r/min 1500/1200/1050/900
Heating Speed(S/H/M/L) r/min /
Fan Motor Power Output W 20
Fan Motor RLA A 0.32
Fan Motor Capacitor μF 1.5
Evaporator Form WAluminum Fin-copper Tube
Evaporator Pipe Diameter inch Φ2/7
Evaporator Row-n Gap inch 2-1/18
Evaporator Coil Length (LXDXW) inch 28 1/7X1X12
Swing Motor Model MP28VB
Swing Motor Power Output W 2.5
Fuse Current A 3.15
Sound Pressure Level (S/H/M/L) dB (A) 49/44/40/35
Sound Power Level (S/H/M/L) dB (A) 59/54/50/45
Dimension (WXHXD) inch 37X11 3/4X7 7/8
Dimension of Carton Box (LXWXH) inch 39 3/4X15X11 2/9
Dimension of Package (LXWXH) inch 39 7/8X15X11 4/5
Net Weight lb 24.3
Gross Weight lb 30.9

3
Technical Information
Service Manual
The above data is subject to change without notice. Please refer to the nameplate of the unit.
Outdoor Unit
Outdoor Unit Model GWC18MC-D3DNA3D/O
Outdoor Unit Product Code CB171W06800
Compressor Manufacturer MITSUBISHI ELECTRIC (GUANGZHOU)
COMPRESSOR CO.,LTD
Compressor Model SNB130FGAMC
Compressor Oil FV50S/PVE
Compressor Type Rotary
Compressor LRA. A 13.8
Compressor RLA A 4.1
Compressor Power Input W 1200
Compressor Overload Protector INT11L-6578
Throttling Method Electron expansion valve
Set Temperature Range °F 61~86
Cooling Operation Ambient Temperature Range °F 19.4~109
Heating Operation Ambient Temperature Range °F /
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter inch Φ2/7
Condenser Rows-n Gap inch 2-1/18
Condenser Coil Length (LXDXW) inch 33X1 1/2X26
Fan Motor Speed rpm 800
Fan Motor Power Output W 60
Fan Motor RLA A 0.28
Fan Motor Capacitor μF /
Outdoor Unit Air Flow Volume CFM 1883
Fan Type Axial-ow
Fan Diameter inch 20 1/2
Defrosting Method /
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for the
Discharge Side PSIG 550
Permissible Excessive Operating Pressure for the
Suction Side PSIG 450
Sound Pressure Level (H/M/L) dB (A) 56/-/-
Sound Power Level (H/M/L) dB (A) 66/-/-
Dimension (WXHXD) inch 37 3/5X27 5/9X15 3/5
Dimension of Carton Box (LXWXH) inch 40 2/5X18X29
Dimension of Package (LXWXH) inch 40 1/2X18X29 1/2
Net Weight lb 99.2
Gross Weight lb 110.3
Refrigerant R410A
Refrigerant Charge oz 24 3/5
Connection
Pipe
Connection Pipe Length ft 24 3/5
Connection Pipe Gas Additional Charge oz/ft. 0.2
Outer Diameter Liquid Pipe inch 1/4
Outer Diameter Gas Pipe inch 1/2
Max Distance Height ft 32.8
Max Distance Length ft 82
Note: The connection pipe applies metric diameter.

4Technical Information
Service Manual
Model GWH18MC-D3DNA3F
GWH18MC-D3DNA8F
GWH18MC-D3DNA3F
GWH18MC-D3DNA5F
Product Code CB171008900
CB173004900
CB171008901
CB162009301
Power
Supply
Rated Voltage V ～208/230 208/230
Rated Frequency Hz 60 60
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity(Min ～Max) Btu/h 18000(5970~22350) 18000(5970~22350)
Heating Capacity(Min ～Max) Btu/h 19800(4100~22000) 19800(4100~22000)
Cooling Power Input(Min ～Max) W 1500(300~2650) 1500(300~2650)
Heating Power Input(Min ～Max) W 1650(335~2750) 1650(335~2750)
Cooling Current Input A 6.65 6.65
Heating Current Input A 7.32 7.32
Rated Input W 2750 2750
Rated Current A 12.20 12.20
Air Flow Volume (S/H/M/L) CFM 500/459/383/324 500/459/383/324
Dehumidifying Volume Pint/h 3.8 3.8
EER (Btu/h)/W 12 12
COP (Btu/h)/W 12 12
SEER 18 18
HSPF 10 10
Application Area yd2 32 2/7-50 1/4 32 2/7-50 1/4
Indoor Unit
Indoor Unit Model GWH18MC-D3DNA3F/I
GWH18MC-D3DNA8F/I
GWH18MC-D3DNA3F/I
GWH18MC-D3DNA5F/I
Indoor Unit Product Code CB171N08900
CB173N04900
CB171N08900
CB162N09300
Fan Type Cross-ow Cross-ow
Fan Diameter Length(DXL) inch Φ3 6/7X28 Φ3 6/7X28
Cooling Speed(S/H/M/L) r/min 1500/1200/1050/900 1500/1200/1050/900
Heating Speed(S/H/M/L) r/min 1500/1250/1150/1050 1500/1250/1150/1050
Fan Motor Power Output W 20 20
Fan Motor RLA A 0.32 0.32
Fan Motor Capacitor μF 1.5 1.5
Evaporator Form WAluminum Fin-copper Tube Aluminum Fin-copper Tube
Evaporator Pipe Diameter inch Φ2/7 Φ2/7
Evaporator Row-n Gap inch 2-1/18 2-1/18
Evaporator Coil Length (LXDXW) inch 28 1/7X1X12 28 1/7X1X12
Swing Motor Model MP28VB MP28VB
Swing Motor Power Output W 2.5 2.5
Fuse Current A 3.15 3.15
Sound Pressure Level (S/H/M/L) dB (A) 49/44/40/35 49/44/40/35
Sound Power Level (S/H/M/L) dB (A) 59/54/50/45 59/54/50/45
Dimension (WXHXD) inch 37X11 3/4X7 7/8 37X11 3/4X7 7/8
Dimension of Carton Box (LXWXH) inch 39 3/4X15X11 2/9 39 3/4X15X11 2/9
Dimension of Package (LXWXH) inch 39 7/8X15X11 4/5 39 7/8X15X11 4/5
Net Weight lb 24.3 24.3
Gross Weight lb 30.9 30.9

5
Technical Information
Service Manual
Outdoor Unit
Outdoor Unit Model GWH18MC-D3DNA3D/O GWH18MC-D3DNA3D/O
(electric heating band)
Outdoor Unit Product Code CB171W04700 CB171W04701
Compressor Manufacturer
MITSUBISHI ELECTRIC
(GUANGZHOU) COMPRESSOR
CO.,LTD
MITSUBISHI ELECTRIC
(GUANGZHOU)
COMPRESSOR CO.,LTD
Compressor Model SNB130FGAMC SNB130FGAMC
Compressor Oil FV50S/PVE FV50S/PVE
Compressor Type Rotary Rotary
Compressor LRA. A 13.8 13.8
Compressor RLA A 4.1 4.1
Compressor Power Input W 1200 1200
Compressor Overload Protector INT11L-6578 INT11L-6578
Throttling Method Electron expansion valve Electron expansion valve
Set Temperature Range °F 61~86 61~86
Cooling Operation Ambient Temperature
Range °F 19.4~109 19.4~109
Heating Operation Ambient Temperature
Range °F 19.4~75.2 19.4~75.2
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Condenser Pipe Diameter inch Φ2/7 Φ2/7
Condenser Rows-n Gap inch 2-1/18 2-0.05
Condenser Coil Length (LXDXW) inch 33X1 1/2X26 33X1 1/2X26
Fan Motor Speed rpm 800 800
Fan Motor Power Output W 60 60
Fan Motor RLA A 0.28 0.28
Fan Motor Capacitor μF / /
Outdoor Unit Air Flow Volume CFM 1883 1883
Fan Type Axial-ow Axial-ow
Fan Diameter inch 20 1/2 20 1/2
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IP24 IP24
Permissible Excessive Operating Pressure
for the Discharge Side PSIG 550 550
Permissible Excessive Operating Pressure
for the Suction Side PSIG 450 450
Sound Pressure Level (H/M/L) dB (A) 56/-/- 56/-/-
Sound Power Level (H/M/L) dB (A) 66/-/- 66/-/-
Dimension (WXHXD) inch 37 3/5X27 5/9X15 3/5 37 3/5X27 5/9X15 3/5
Dimension of Carton Box (LXWXH) inch 40 2/5X18X29 40 2/5X18X29
Dimension of Package (LXWXH) inch 40 1/2X18X29 1/2 40 1/2X18X29 1/2
Net Weight lb 99.2 99.2
Gross Weight lb 110.3 110.3
Refrigerant R410A R410A
Refrigerant Charge oz 49.39 49.39
Connection
Pipe
Connection Pipe Length ft 24 3/5 24 3/5
Connection Pipe Gas Additional Charge oz/ft. 0.2 0.2
Outer Diameter Liquid Pipe inch 1/4 1/4
Outer Diameter Gas Pipe inch 1/2 1/2
Max Distance Height ft 33 33
Max Distance Length ft 82 82
Note: The connection pipe applies metric diameter.
The above data is subject to change without notice. Please refer to the nameplate of the unit.

6Technical Information
Service Manual
Model GWC24MD-D3DNA3F
GWC24MD-D3DNA5F
Product Code CB171009700
CB162009600
Power
Supply
Rated Voltage V ～208/230
Rated Frequency Hz 60
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min ～Max) Btu/h 21400(9600~25000)
Heating Capacity(Min ～Max) Btu/h /
Cooling Power Input(Min ～Max) W 1780(500~2650)
Heating Power Input(Min ～Max) W /
Cooling Current Input A 7.9
Heating Current Input A /
Rated Input W 2650
Rated Current A 11.76
Air Flow Volume (S/H/M/L) CFM 500/459/383/324
Dehumidifying Volume Pint/h 5.28
EER (Btu/h)/W 12
COP (Btu/h)/W /
SEER 18
HSPF /
Application Area yd2 32 2/7-50 1/4
Indoor Unit
Indoor Unit Model GWC24MD-D3DNA3F/I
GWC24MD-D3DNA5F/I
Indoor Unit Product Code CB171N09700
CB162N09600
Fan Type Cross-ow
Fan Diameter Length(DXL) inch Φ3 6/7X30/1/8
Cooling Speed(S/H/M/L) r/min 1500/1200/1050/900
Heating Speed(S/H/M/L) r/min /
Fan Motor Power Output W 60
Fan Motor RLA A 0.24
Fan Motor Capacitor μF /
Evaporator Form WAluminum Fin-copper Tube
Evaporator Pipe Diameter inch Φ2/7
Evaporator Row-n Gap inch 2-1/17
Evaporator Coil Length (LXDXW) inch 30 1/8X1X13 1/2
Swing Motor Model MP35XX
Swing Motor Power Output W 3
Fuse Current A 3.15
Sound Pressure Level (S/H/M/L) dB (A) 53/45/41/37
Sound Power Level (S/H/M/L) dB (A) 63/55/51/47
Dimension (WXHXD) inch 39 2/3X12 2/5X8 5/8
Dimension of Carton Box (LXWXH) inch 42 1/4X15 5/9X12 1/3
Dimension of Package (LXWXH) inch 42 1/3X15 2/3X12 21/23
Net Weight lb 29.8
Gross Weight lb 37.5

7
Technical Information
Service Manual
Outdoor Unit
Outdoor Unit Model GWC24MD-D3DNA3D/O
Outdoor Unit Product Code CB171W06900
Compressor Manufacturer MITSUBISHI ELECTRIC (GUANGZHOU)
COMPRESSOR CO. LTD
Compressor Model SNB150FGAMC
Compressor Oil PVE/FV50S
Compressor Type Rotary
Compressor LRA. A 18.50
Compressor RLA A 4.90
Compressor Power Input W 1420
Compressor Overload Protector 1NT11L-6578
Throttling Method Electron expansion valve
Set Temperature Range °F 61~86
Cooling Operation Ambient Temperature Range °F 19.4~109
Heating Operation Ambient Temperature Range °F /
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter inch Φ2/7
Condenser Rows-n Gap inch 2-1/18
Condenser Coil Length (LXDXW) inch 38X1 1/2X29 4/9
Fan Motor Speed rpm 800
Fan Motor Power Output W 90
Fan Motor RLA A 1.1
Fan Motor Capacitor μF 4
Outdoor Unit Air Flow Volume CFM 2354
Fan Type Axial-ow
Fan Diameter inch 20 3/4
Defrosting Method /
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for the
Discharge Side PSIG 550
Permissible Excessive Operating Pressure for the Suction
Side PSIG 450
Sound Pressure Level (H/M/L) dB (A) 58/-/-
Sound Power Level (H/M/L) dB (A) 68/-/-
Dimension (WXHXD) inch 38 4/7X31 1/9X16 4/5
Dimension of Carton Box (LXWXH) inch 42 1/2X19X33
Dimension of Package (LXWXH) inch 42 2/3X19 1/5X33 2/3
Net Weight lb 119.1
Gross Weight lb 130.1
Refrigerant R410A
Refrigerant Charge oz 56.4
Connection
Pipe
Connection Pipe Length ft 24 3/5
Connection Pipe Gas Additional Charge oz/ft. 0.5
Outer Diameter Liquid Pipe inch 1/4
Outer Diameter Gas Pipe inch 5/8
Max Distance Height ft 32.8
Max Distance Length ft 82
Note: The connection pipe applies metric diameter.
The above data is subject to change without notice. Please refer to the nameplate of the unit.

8Technical Information
Service Manual
Model GWH24MD-D3DNA3F
GWH24MD-D3DNA5F
GWH24MD-D3DNA3F
GWH24MD-D3DNA8F
Product Code CB171009801
CB162009501
CB171009800
CB173005000
Power
Supply
Rated Voltage V ～208/230 208/230
Rated Frequency Hz 60 60
Phases 1 1
Power Supply Mode Outdoor Outdoor
Cooling Capacity(Min ～Max) Btu/h 21400(9600~25000) 21400(9600~25000)
Heating Capacity(Min ～Max) Btu/h 23000(4300~26000) 23000(4300~26000)
Cooling Power Input(Min ～Max) W 1780(500~2650) 1780(500~2650)
Heating Power Input(Min ～Max) W 2100(400~2750) 2100(400~2750)
Cooling Current Input A 7.9 7.9
Heating Current Input A 9.3 9.3
Rated Input W 2750 2750
Rated Current A 12.20 12.20
Air Flow Volume (S/H/M/L) CFM 589/471/412/353 589/471/412/353
Dehumidifying Volume Pint/h 5.28 5.28
EER (Btu/h)/W 12.0 12.0
COP (Btu/h)/W 10.6 10.6
SEER 18 18
HSPF 10 10
Application Area yd2 32 2/7-50 1/4 32 2/7-50 1/4
Indoor Unit
Indoor Unit Model GWH24MD-D3DNA3F/I
GWH24MD-D3DNA5F/I
GWH24MD-D3DNA3F/I
GWH24MD-D3DNA8F/I
Indoor Unit Product Code CB171N09800
CB162N09500
CB171N09800
CB173N05000
Fan Type Cross-ow Cross-ow
Fan Diameter Length(DXL) inch Φ3 6/7X30/1/8 Φ3 6/7X30/1/8
Cooling Speed(S/H/M/L) r/min 1500/1200/1050/900 1500/1200/1050/900
Heating Speed(S/H/M/L) r/min 1450/1150/1020/950 1450/1150/1020/950
Fan Motor Power Output W 60 60
Fan Motor RLA A 0.24 0.24
Fan Motor Capacitor μF / /
Evaporator Form WAluminum Fin-copper Tube Aluminum Fin-copper Tube
Evaporator Pipe Diameter inch Φ2/7 Φ2/7
Evaporator Row-n Gap inch 2-1/17 2-1/17
Evaporator Coil Length (LXDXW) inch 30 1/8X1X13 1/2 30 1/8X1X13 1/2
Swing Motor Model MP35XX MP35XX
Swing Motor Power Output W 3 3
Fuse Current A 3.15 3.15
Sound Pressure Level (S/H/M/L) dB (A) 53/45/41/37 53/45/41/37
Sound Power Level (S/H/M/L) dB (A) 63/55/51/47 63/55/51/47
Dimension (WXHXD) inch 39 2/3X12 2/5X8 5/8 39 2/3X12 2/5X8 5/8
Dimension of Carton Box (LXWXH) inch 42 1/4X15 5/9X12 1/3 42 1/4X15 5/9X12 1/3
Dimension of Package (LXWXH) inch 42 1/3X15 2/3X12 21/23 42 1/3X15 2/3X12 21/23
Net Weight lb 29.8 29.8
Gross Weight lb 37.5 37.5

9
Technical Information
Service Manual
Outdoor Unit
Outdoor Unit Model GWH24MD-D3DNA3D/O
(electric heating band) GWH24MD-D3DNA3D/O
Outdoor Unit Product Code CB171W07001 CB171W07000
Compressor Manufacturer
MITSUBISHI ELECTRIC
(GUANGZHOU)COMPRESSOR
CO. LTD
MITSUBISHI ELECTRIC
(GUANGZHOU)COMPRESSOR
CO. LTD
Compressor Model SNB150FGAMC SNB150FGAMC
Compressor Oil PVE/FV50S PVE/FV50S
Compressor Type Rotary Rotary
Compressor LRA. A 18.50 18.50
Compressor RLA A 4.90 4.90
Compressor Power Input W 1420 1420
Compressor Overload Protector 1NT11L-6578 1NT11L-6578
Throttling Method Electron expansion valve Electron expansion valve
Set Temperature Range °F 61~86 61~86
Cooling Operation Ambient Temperature
Range °F 19.4~109 19.4~109
Heating Operation Ambient Temperature
Range °F 19.4~75.2 19.4~75.2
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Condenser Pipe Diameter inch Φ2/7 Φ2/7
Condenser Rows-n Gap inch 2-1/18 2-1/18
Condenser Coil Length (LXDXW) inch 38X1 1/2X29 4/9 38X1 1/2X29 4/9
Fan Motor Speed rpm 800 800
Fan Motor Power Output W 90 90
Fan Motor RLA A 1.1 0.5
Fan Motor Capacitor μF 4 /
Outdoor Unit Air Flow Volume CFM 2354 2354
Fan Type Axial-ow Axial-ow
Fan Diameter inch 20 3/4 Φ21 3/4
Defrosting Method /Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IP24 IP24
Permissible Excessive Operating Pressure
for the Discharge Side PSIG 550 550
Permissible Excessive Operating Pressure
for the Suction Side PSIG 450 240
Sound Pressure Level (H/M/L) dB (A) 58/-/- 58/-/-
Sound Power Level (H/M/L) dB (A) 68/-/- 68/-/-
Dimension (WXHXD) inch 38 4/7X31 1/9X16 4/5 38 4/7X31 1/9X16 4/5
Dimension of Carton Box (LXWXH) inch 42 1/2X19X33 42 1/2X19X33
Dimension of Package (LXWXH) inch 42 2/3X19 1/5X33 2/3 42 2/3X19 1/5X33 2/3
Net Weight lb 132.3 123.3
Gross Weight lb 145.5 143.3
Refrigerant R410A R410A
Refrigerant Charge oz 56.4 56.4
Connection
Pipe
Connection Pipe Length ft 24 3/5 24 3/5
Connection Pipe Gas Additional Charge oz/ft. 0.5 0.5
Outer Diameter Liquid Pipe inch 1/4 1/4
Outer Diameter Gas Pipe inch 5/8 5/8
Max Distance Height ft 32.8 32.8
Max Distance Length ft 82 82
Note: The connection pipe applies metric diameter.
The above data is subject to change without notice. Please refer to the nameplate of the unit.

10 Technical Information
Service Manual
2.2 Operation Characteristic Curve
Cooling Heating
0 10 20 30 40 50 60 70 80 90 100 1200 10 20 30 40 50 60 70 90 11080
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
220V
230V
240V
220V
230V
240V
•Conditions cooling
Indoor DB 80˚F/WB 67˚F
Outdoor : DB 95˚F/WB75˚F
Indoor air flow : Turbo
Pipe length : 24 3/5 ft.
•Conditions heating
Indoor : DB 70˚F/WB 60˚F
Outdoor : DB 47˚F/WB 43˚F
Indoor air flow : Turbo
Pipe length : 24 3/5 ft.
2.3 Capacity Variation Ratio According to Temperature
100
105
95
90
85
80
75
70
65
60
55
50
Outdoor temp. (˚F)
)%(oitaryticapaC
Outdoor temp. (˚F)
)%(oitaryticapaC
Conditions cooling
Indoor: DB 80˚F/WB67˚F
Indoor air flow : Turbo
Pipe length: 24 3/5ft.
89.6 91.4 93.2 95 96.8 98.6 100.4 102.2 104 105.8 107.6 109.4
40
60
80
100
120
19 26.6 37.433.8 59.051.841.6 66.2 75.2
Conditions heating
Indoor: DB 70˚F
Indoor air flow : Turbo
Pipe length: 24 3/5ft.
Cooling Heating
0 10 20 30 40 50 60 70 80 90 100 1200 10 20 30 40 50 60 70 90 11080
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
)A(tnerruC
220V
230V
240V
220V
230V
240V
•Conditions cooling
Indoor DB 80˚F/WB 67˚F
Outdoor : DB 95˚F/WB75˚F
Indoor air flow : Turbo
Pipe length : 24 3/5 ft.
•Conditions heating
Indoor : DB 70˚F/WB 60˚F
Outdoor : DB 47˚F/WB 43˚F
Indoor air flow : Turbo
Pipe length : 24 3/5 ft.
Cooling Heating
18K Unit
24K Unit

11
Technical Information
Service Manual
2.4 Cooling and Heating Data Sheet in Rated Frequency
Instruction:
T1: Inlet and outlet pipe temperature of evaporator
T2: Inlet and outlet pipe temperature of condenser
P: Pressure at the side of big valve
Connection pipe length: 24 3/5ft.
Cooling:
Heating:
2.5 Noise Curve
Rated cooling condition (°F)
(DB/WB) Model
Pressure of gas pipe
connecting indoor
and outdoor unit
Inlet and outlet pipe
temperature of heat
exchanger
Fan speed
of indoor
unit
Fan speed
of outdoor
unit
Compressor
revolution (rps)
Indoor Outdoor P (MPa) T1 (°F) T2 (°F)
80/67 95/75 18K 0.9 to 1.1 53.6 to 57.2 109.4 to 105.8 Turbo High 77
80/67 95/75 24K 0.9 to 1.1 53.6 to 57.2 109.4 to 105.8 Turbo High 76
Rated heating condition (°F)
(DB/WB) Model
Pressure of gas pipe
connecting indoor
and outdoor unit
Inlet and outlet pipe
temperature of heat
exchanger
Fan speed
of indoor
unit
Fan speed
of outdoor
unit
Compressor
revolution
(rps)
Indoor Outdoor P (MPa) T1 (°F) T2 (°F)
70/60 47/43 18K 2.2 to 2.4 100.4 to 98.6 35.6 to 39.2 Turbo High 80
70/60 47/43 24K 2.2 to 2.4 100.4 to 98.6 35.6 to 39.2 Turbo High 79
50
55
40
45
35
Indoor side noise
Indoor fan motor rotating speed
Compressor frequency/Hz
Low Middle High Super High
60
50
40
30
20
0 20 40 60 10080
Noise/dB(A)
Noise/dB(A)
Outdoor side noise
18K
24K
18K
24K

12 Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
WD
H
Unit:inch
2
Ф2 1/6 Ф2 1/6
3 1/3
3 1/2
6 2/7
2 5/9
Ф2 3/4 Ф2 3/4
5 1 2
27 1/3
27
7 2/3
7 1/4
18K Unit
24K Unit
Model W H D
18K 37 11 3/4 7 7/8
24K 39 2/3 12 2/5 8 5/8

13
Technical Information
Service Manual
3.2 Outdoor Unit
18K Unit
24K Unit
Unit:inch
14 4/7
31 1/9
16 4/5
15 5/9
38 4/7
24
36
Unit: inch
35
13 2/5
27 5/9
15 3/5
38
14 1/3
22

14 Technical Information
Service Manual
4. Refrigerant System Diagram
Refrigerant pipe diameter
Liquid pipe : 1/4" Gas pipe : 1/2"(18K)
Liquid pipe : 1/4" Gas pipe : 5/8"(24K)
Indoor unit Outdoor unit
Indoor unit Outdoor unit
COOLING
HEATING
Accumlator
4-Way valve
COOLING
Discharge
Suction
Discharge
Suction
Heat
exchanger
(evaporator)
Heat
exchanger
(evaporator)
Heat
exchanger
(condenser)
Valve
Valve
Valve
Valve
Liquid pipe
side
Gas pipe
side
Liquid pipe
side
Gas pipe
side
Compressor
Compressor
Strainer
Strainer Strainer
Capillary
Capillary
Accumlator
Heat
exchang
(condenser)
Cooling only model
Cooling and heating model

15
Technical Information
Service Manual
5. Electrical Part
5.1 Wiring Diagram
● Indoor Unit
●Instruction
Symbol Symbol Color Symbol Symbol Color Symbol Name
WH White GN Green CAP Jumper cap
YE Yellow BN Brown COMP Compressor
RD Red BU Blue Grounding wire
YEGN Yellow/Green BK Black / /
VT Violet OG Orange / /
Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model.
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16 Technical Information
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