Daikin FTKS18SL216 User manual

FTKS18SL216/RKS18SL216
FTXS18SL216/RXS18SL216
FTKS24SL216/RKS24SL216
FTXS24SL216/RXS24SL216
Service Manual
R410A serie split
MODEL

Service Manual
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 ........................................................................................8
2.3 Capacity Variation Ratio According to Temperature .........................................................8
2.4 Noise Curve......................................................................................................................9
2.5 Cooling and Heating Data Sheet in Rated Frequency .....................................................9
3. Outline Dimension Diagram......................................................................10
3.1 Indoor Unit......................................................................................................................10
3.2 Outdoor Unit ...................................................................................................................11
4. Refrigerant System Diagram....................................................................12
5. Electrical Part.........................................................................................................13
5.1 Wiring Diagram...............................................................................................................13
5.2 PCB Printed Diagram .....................................................................................................16
6. Function and Control......................................................................................18
6.1 Remote Controller Introduction .....................................................................................18
6.2 Brief Description of Modes and Functions......................................................................21
Part Ⅱ: Installation and Maintenance .................................................30
7. Notes for Installation and Maintenance..........................................30
8. Installation................................................................................................................33
8.1 Installation Dimension Diagram......................................................................................33
8.2 Installation Parts-checking ............................................................................................35
8.3 Selection of Installation Location....................................................................................35
8.4 Requirements for Electric Connection............................................................................35
8.5 Installation of Indoor Unit................................................................................................35
8.6 Installation of Outdoor Unit.............................................................................................38
8.7 Vacuum Pumping and Leak Detection ...........................................................................39
8.8 Check after Installation and Test Operation ...................................................................39
8.9 Wired Controller .............................................................................................................40

Service Manual
Table of contents Table of contents
9. Maintenance............................................................................................................50
9.1 Precautions before Maintenance....................................................................................50
9.2 Error Code List ...............................................................................................................51
9.3 Troubleshooting for Main Malfunction ............................................................................54
9.4 Troubleshooting for Normal Malfunction.........................................................................69
10. Exploded View and Parts List..............................................................71
10.1 Indoor Unit....................................................................................................................71
10.2 Outdoor Unit .................................................................................................................75
11. Removal Procedure.......................................................................................80
11.1 Removal Procedure of Indoor Unit ...............................................................................80
11.2 Removal Procedure of Outdoor Unit ............................................................................85
Appendix:........................................................................................................................90
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................90
Appendix 2: Conguration of Connection Pipe.....................................................................90
Appendix 3: Pipe Expanding Method ...................................................................................91
Appendix 4: List of Resistance for Temperature Sensor ......................................................92

1
Technical Information
Service Manual
1. Summary
Indoor Unit:
Part Ⅰ: Technical Information
FTKS18SL216
FTXS18SL216
FTKS24SL216
FTXS24SL216
Outdoor Unit:
RKS18SL216
RXS18SL216
RKS24SL216
RXS24SL216
YU1F
Remote Controller:

2Technical Information
Service Manual
Model FTKS18SL216/RKS18SL216 FTXS18SL216/RXS18SL216
Product Code CB459004600_L75033 CB459004200_L84775
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(3412~20472) 18000(3412~20472)
Heating Capacity(Min~Max) Btu/h /19800(3412~21837)
Cooling Power Input(Min~Max) W1820(80~2350) 1820(80~2350)
Heating Power Input(Min~Max) W / 2090(220~2350)
Cooling Power Current A 8.1 8.1
Heating Power Current A / 8.5
Rated Input W 2350 2350
Rated Current A 12 12
Air Flow Volume(SH/H/M/L) CFM 500/441/383/294 500/441/383/294
Dehumidifying Volume Pint/h 3.80 3.80
EER (Btu/h)/W 9.89 9.89
COP (Btu/h)/W / 9.47
SEER 18.00 18.00
HSPF / 9.00
Application Area yd227.50-40.66 27.50-40.66
Indoor Unit
Model of indoor unit FTKS18SL216 FTXS18SL216
Indoor Unit Product Code CB459N04600_L75033 CB459N04200_L84775
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) inch Φ4 3/16X27 13/16 Φ4 3/16X27 13/16
Fan Motor Cooling Speed(SH/H/M/L) r/min 1350/1200/1050/900 1350/1200/1050/900
Fan Motor Heating Speed(SH/H/M/L) r/min / 1300/1200/1100/900
Output of Fan Motor W 35 35
Fan Motor RLA A 0.37 0.37
Fan Motor Capacitor μF 2.5 2.5
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ5/16 Φ5/16
Row-n Gap inch 2-1/16 2-1/16
Coil Length (LXDXW) inch 28 1/8X1X12 28 1/8X1X12
Swing Motor Model MP35CJ MP35CJ
Output of Swing Motor W2.5 2.5
Fuse A 3.15 3.15
Sound Pressure Level(SH/H//M/L) dB (A) 47/44/40/35 47/44/40/35
Sound Power Level(SH/H//M/L) dB (A) 57/54/50/45 57/54/50/45
Dimension (WXHXD) inch 38 3/16X11 13/16X8 13/16 38 3/16X11 13/16X8 13/16
Dimension of Carton Box (LXWXH) inch 40 7/8X15X12 40 7/8X15X12
Dimension of Package (LXWXH) inch 41X15X12 5/8 41X15X12 5/8
Net Weight Ib 30.9 30.9
Gross Weight Ib 37.5 37.5
2. Specications
2.1 Specication Sheet

3
Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit RKS18SL216 RXS18SL216
Outdoor Unit Product Code CB425W07500_L75033 CB425W07400_L84775
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR
CO.,LTD
ZHUHAI LANDA COMPRESSOR
CO.,LTD
Compressor Model QXA-B141zF030A QXA-B141zF030A
Compressor Oil RB68EP RB68EP
Compressor Type Rotary Rotary
Compressor Locked Rotor Amp (L.R.A) A 25 25
Compressor RLA A 12.08 12.08
Compressor Power Input W 1440 1440
Overload Protector 1NT11L-6233 or KSD115OC or
HPC115/95U1
1NT11L-6233 or KSD115OC or
HPC115/95U1
Throttling Method Electron expansion valve Electron expansion valve
Operation temp ºF 60.8~86 60.8~86
Ambient temp (cooling) ºF 0~115 0~115
Ambient temp (heating) ºF / -4~75
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter inch Φ5/16 Φ3/8
Rows-n Gap inch 1-1/16 1-1/16
Coil Length (LXDXW) inch 34 11/16X26X7/8 33 5/8X26X7/8
Fan Motor Speed rpm 800 800
Output of Fan Motor W 60 60
Fan Motor RLA A 0.52 0.52
Fan Motor Capacitor μF / /
Air Flow Volume of Outdoor Unit CFM 1883 1883
Fan Type Axial-ow Axial-ow
Fan Diameter inch Φ20 1/2 Φ20 1/2
Defrosting Method /Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IPX4 IPX4
Permissible Excessive Operating
Pressure for the Discharge Side ISPG 550 550
Permissible Excessive Operating
Pressure for the Suction Side ISPG 240 240
Sound Pressure Level (H/M/L) dB (A) 57/-/- 57/-/-
Sound Power Level (H/M/L) dB (A) 67/-/- 67/-/-
Dimension (WXHXD) inch 38X27 9/16X15 5/8 38X27 9/16X15 5/8
Dimension of Carton Box (LXWXH) inch 40 3/8X17 7/8X29 40 3/8X17 7/8X29
Dimension of Package (LXWXH) inch 40 1/2X18X29 1/2 40 1/2X18X29 1/2
Net Weight Ib 91.5 97
Gross Weight Ib 101.4 106.9
Refrigerant R410A R410A
Refrigerant Charge oz 33.51 45.86
Connection
Pipe
Length ft 24.6 24.6
Gas Additional Charge oz/ft 0.16 0.2
Outer Diameter Liquid Pipe inch Φ1/4 Φ1/4
Outer Diameter Gas Pipe inch Φ1/2 Φ1/2
Max Distance Height ft 65 65
Max Distance Length ft 100 100
Note:The connection pipe applies metric diameter.

4Technical Information
Service Manual
Model FTKS24SL216/RKS24SL216
Product Code CB459004700_L75033
Power Supply
Rated Voltage V~ 208/230
Rated Frequency Hz 60
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min~Max) Btu/h 22000(8630~23200)
Heating Capacity(Min~Max) Btu/h /
Cooling Power Input(Min~Max) W2260(600~27000)
Heating Power Input(Min~Max) W /
Cooling Power Current A 10.03
Heating Power Current A /
Rated Input W 2700
Rated Current A 11.98
Air Flow Volume(SH/H/M/L) CFM 1200/1050/900/750
Dehumidifying Volume Pint/h 2.5
EER (Btu/h)/W 9.73
COP (Btu/h)/W /
SEER 18
HSPF /
Application Area yd232.29-50.23
Indoor Unit
Model of indoor unit FTKS24SL216
Indoor Unit Product Code CB459N04700_L75033
Fan Type Cross-ow
Diameter Length(DXL) inch Φ4 1/4X32 11/16
Fan Motor Cooling Speed(SH/H/M/L) r/min 1300/1150/1000/850
Fan Motor Heating Speed(SH/H/M/L) r/min /
Output of Fan Motor W 30
Fan Motor RLA A 0.32
Fan Motor Capacitor μF 3
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter inch Φ5/16
Row-n Gap inch 2-1/16
Coil Length (LXDXW) inch 33 1/4X1X13 1/2
Swing Motor Model MP35CJ
Output of Swing Motor W 2.5
Fuse A 3.15
Sound Pressure Level(SH/H//M/L) dB (A) 49/46/42/36
Sound Power Level(SH/H//M/L) dB (A) 59/56/52/46
Dimension (WXHXD) inch 42 7/16X12 13/16X9 11/16
Dimension of Carton Box (LXWXH) inch 45X16 1/8X13 3/16
Dimension of Package (LXWXH) inch 45 3/16X16 1/4X13 3/4
Net Weight Ib 38.58
Gross Weight Ib 45.19

5
Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit RKS24SL216
Outdoor Unit Product Code CB425W07600_L75033
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD
Compressor Model QXA-B141zF030A
Compressor Oil RB68EP
Compressor Type Rotary
Compressor Locked Rotor Amp (L.R.A) A 25
Compressor RLA A 11.29
Compressor Power Input W 1440
Overload Protector 1NT11L-6233 or KSD115℃ or HPC115/95U1
Throttling Method Electron expansion valve
Operation temp ºF 60.8~86
Ambient temp (cooling) ºF 0~115
Ambient temp (heating) ºF /
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter inch Φ3/8
Rows-n Gap inch 2-1/16
Coil Length (LXDXW) inch 33 5/16X1 3/4X26
Fan Motor Speed rpm 800
Output of Fan Motor W 60
Fan Motor RLA A 0.4
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit CFM 3200
Fan Type Axial-ow
Fan Diameter inch Φ20 1/2
Defrosting Method /
Climate Type T1
Isolation I
Moisture Protection IPX4
Permissible Excessive Operating
Pressure for the Discharge Side ISPG 550
Permissible Excessive Operating
Pressure for the Suction Side ISPG 240
Sound Pressure Level (H/M/L) dB (A) 58/-/-
Sound Power Level (H/M/L) dB (A) 68/-/-
Dimension (WXHXD) inch 38X27 9/16X15 5/8
Dimension of Carton Box (LXWXH) inch 40 3/8X17 7/8X29
Dimension of Package (LXWXH) inch 40 1/2X18X29 1/2
Net Weight Ib 101.41
Gross Weight Ib 111.33
Refrigerant R410A
Refrigerant Charge oz 56.4
Connection
Pipe
Length ft 24.6
Gas Additional Charge oz/ft 0.2
Outer Diameter Liquid Pipe inch Φ1/4
Outer Diameter Gas Pipe inch Φ5/8
Max Distance Height ft 32.8
Max Distance Length ft 82
Note:The connection pipe applies metric diameter.

6Technical Information
Service Manual
Model FTXS24SL216/RXS24SL216
Product Code CB459004300_L84775
Power Supply
Rated Voltage V~ 208/230
Rated Frequency Hz 60
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min~Max) Btu/h 22000(8630~23200)
Heating Capacity(Min~Max) Btu/h 24000(8650~26000)
Cooling Power Input(Min~Max) W2260(600~27000)
Heating Power Input(Min~Max) W2300(610~2750)
Cooling Power Current A 10.03
Heating Power Current A 10.20
Rated Input W 2750
Rated Current A 11.98
Air Flow Volume(SH/H/M/L) CFM 1200/1050/900/750
Dehumidifying Volume Pint/h 2.5
EER (Btu/h)/W 9.73
COP (Btu/h)/W 10.40
SEER 18.00
HSPF 10.00
Application Area yd232.29-50.23
Indoor Unit
Model of indoor unit FTXS24SL216
Indoor Unit Product Code CB459N04300_L84775
Fan Type Cross-ow
Diameter Length(DXL) inch Φ4 1/4X32 11/16
Fan Motor Cooling Speed(SH/H/M/L) r/min 1300/1150/1000/850
Fan Motor Heating Speed(SH/H/M/L) r/min 1300/1150/1000/850
Output of Fan Motor W 30
Fan Motor RLA A 0.32
Fan Motor Capacitor μF 3
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter inch Φ5/16
Row-n Gap inch 2-1/16
Coil Length (LXDXW) inch 33 1/4X1X13 1/2
Swing Motor Model MP35CJ
Output of Swing Motor W 2.5
Fuse A 3.15
Sound Pressure Level(SH/H//M/L) dB (A) 49/46/42/36
Sound Power Level(SH/H//M/L) dB (A) 59/56/52/46
Dimension (WXHXD) inch 42 7/16X12 13/16X9 11/16
Dimension of Carton Box (LXWXH) inch 45X16 1/8X13 3/16
Dimension of Package (LXWXH) inch 45 3/16X16 1/4X13 3/4
Net Weight Ib 38.58
Gross Weight Ib 45.19

7
Technical Information
Service Manual
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor Unit
Model of Outdoor Unit RXS24SL216
Outdoor Unit Product Code CB425W07700_L84775
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO.,LTD
Compressor Model QXA-B141zF030A
Compressor Oil RB68EP
Compressor Type Rotary
Compressor Locked Rotor Amp (L.R.A) A 25
Compressor RLA A 12.18
Compressor Power Input W 1440
Overload Protector NT11L-6233 or KSD115℃ or HPC115/95U1
Throttling Method Electron expansion valve
Operation temp ºF 60.8~86
Ambient temp (cooling) ºF 0~115
Ambient temp (heating) ºF -4~75
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter inch Φ3/8
Rows-n Gap inch 2-1/16
Coil Length (LXDXW) inch 33 5/16X1 3/4X26
Fan Motor Speed rpm 800
Output of Fan Motor W 60
Fan Motor RLA A 0.4
Fan Motor Capacitor μF /
Air Flow Volume of Outdoor Unit CFM 3200
Fan Type Axial-ow
Fan Diameter inch Φ20 1/2
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
Permissible Excessive Operating
Pressure for the Discharge Side ISPG 550
Permissible Excessive Operating
Pressure for the Suction Side ISPG 240
Sound Pressure Level (H/M/L) dB (A) 58/-/-
Sound Power Level (H/M/L) dB (A) 68/-/-
Dimension (WXHXD) inch 38X27 9/16X15 5/8
Dimension of Carton Box (LXWXH) inch 40 3/8X17 7/8X29
Dimension of Package (LXWXH) inch 40 1/2X18X29 1/2
Net Weight Ib 103.62
Gross Weight Ib 113.54
Refrigerant R410A
Refrigerant Charge oz 56.4
Connection
Pipe
Length ft 24.6
Gas Additional Charge oz/ft 0.2
Outer Diameter Liquid Pipe inch Φ1/4
Outer Diameter Gas Pipe inch Φ5/8
Max Distance Height ft 32.8
Max Distance Length ft 82
Note:The connection pipe applies metric diameter.

8Technical Information
Service Manual
2.2 Operation Characteristic Curve
2.3 Capacity Variation Ratio According to Temperature
Cooling
Cooling
-4 514
110
100
90
80
70
60
50
40
23 32 41 50
Outdoor temp.(°F)
Capacity ratio (%)
89.6 91.4 93.295 96.8 98.6 100.4 102.2 109.4 104 105.8 107.6
100
105
95
90
85
80
75
70
65
60
55
50
Outdoor temp.(°F)
Capacity ratio (%)
Conditions
Indoor:DB
80°F /WB66.9 °F
Outdoor:DB95°F
Indoor air flow:Super High
Pipe length:
24.6ft
Conditions
Indoor:DB
70°F
Outdoor:DB19.94°F/WB19.04°F
Indoor air flow:Super High
Pipe length:
24.6ft
Heating
Heating
01020304050607090010 20 30 40 50 60 70 80 90 100 120110
80
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
CoolingHeating
FTKS24SL216/RKS24SL216
FTKS18SL216/RKS18SL216
Conditions
Indoor:DB80°F/WB66.9°F
Outdoor:DB95°F
Indoor air flow:Super High
Pipe length:24.6ft
Conditions
Indoor:DB70°F/WB60°F
Outdoor:DB19.94°F/WB19.04°F
Indoor air flow:Super High
Pipe length:24.6ft
FTXS24SL216/RXS24SL216
FTXS18SL216/RXS18SL216

9
Technical Information
Service Manual
2.5 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: 24.6ft.
Cooling:
2.4 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 (PSIG) T1 (°F) T2 (°F)
80/66.9 95/- FTKS18SL216/
RKS18SL216 130~142 in:46.4~51.8
out:51.8~57.2
in:167~181.4
out:98.6~118.4 Super High High 73
80/66.9 95/- FTKS24SL216/
RKS24SL216 130~142 in:46.4~51.8
out:51.8~57.2
in:167~181.4
out:98.6~118.4 Super High High 75
Heating:
20
30
40
50
LMHSH
Indoor fan motor rating speed
Noise/dB(A)
46
48
50
52
54
56
58
60
20 30 40 50 60 70 80 90
100
Compressor frequency(Hz)
Noise dB(A)
Heating
Cooling
Indoor side noise Outdoor side noise
FTKS24SL216
FTKS18SL216
FTXS24SL216
FTXS18SL216 RKS24SL216
RKS18SL216
RXS24SL216
RXS18SL216
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 (PSIG) T1 (°F) T2 (°F)
70/60 19.94/19.04 FTXS18SL216/
RXS18SL216 507~550 in:167~181.4
out:98.6~113
in:33.8~37.4
out:35.6~42.8 Super High High 75
70/60 19.94/19.04 FTXS24SL216/
RXS24SL216 507~550 in:167~181.4
out:98.6~113
in:33.8~37.4
out:35.6~42.8 Super High High 80

10 Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
WD
H
42773/16
5 1/2
7 1/2
1 1/2
Φ2 3/16 Φ2 3/16
3 1/8
6
1 11/16
8 1/8 27 7 5/16
Φ2 3/4 Φ2 3/4
Unit:inch
Models WH D
FTKS18SL216
FTXS18SL216 38 3/16 11 13/16 8 13/16
FTKS24SL216
FTXS24SL216 42 7/16 12 13/16 9 11/16
FTKS18SL216
FTXS18SL216
FTKS24SL216
FTXS24SL216

11
Technical Information
Service Manual
3.2 Outdoor Unit
Unit: inch
35
13 3/8
27 9/16
15 5/8
38
14 5/16
22
38X27 9/16X15 5/8
RKS18SL216
RXS18SL216
RKS24SL216
RXS24SL216

12 Technical Information
Service Manual
4. Refrigerant System Diagram
Indoor unit Outdoor unit
COOLING
HEATING
4-Way valve
Discharge
Suction
Heat
exchanger
(evaporator) Heat
exchanger
(condenser)
Valve
Valve
Liquid pipe
side
Gas pipe
side
Strainer Electron
expansion
valve
Strainer
Accumlator
Compressor
Indoor unit Outdoor unit
Accumlator
COOLING
Discharge
Suction
Heat
exchanger
(evaporator) Heat
exchanger
(condenser)
Valve
Valve
Liquid pipe
side
Gas pipe
side
Compressor
Strainer
Electron
expansion
valve
Connection pipe specication:
Liquid pipe:1/4"
Gas pipe:1/2" for FTKS18SL216/RKS18SL216 FTXS18SL216/RXS18SL216
Gas pipe:5/8" for FTKS24SL216/RKS24SL216 FTXS24SL216/RXS24SL216
FTKS18SL216/RKS18SL216
FTKS24SL216/RKS24SL216
FTXS18SL216/RXS18SL216
FTXS24SL216/RXS24SL216

13
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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FTKS24SL216
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14 Technical Information
Service Manual
● Outdoor Unit
RKS18SL216 RKS24SL216
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15
Technical Information
Service Manual
The above data is subject to change without notice. Please refer to the nameplate of the unit.
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16 Technical Information
Service Manual
5.2 PCB Printed Diagram
Indoor Unit
12456
7
8
9
1011121314
3
● T
op view
● Bottom view
No. Name
1
2
3
4Interface of health function
live wire(only for the mode
with this function)
5Interface of up&down swing
motor
Interface of PG feedback
6
Neutral wire interface of cold
plasma(only for the mode
with this function)
7WIFI
8Temperature sensor
Wired controller
9
10 Interface of diaplay
11
12 Communication wire
Jumper cap
13 Live wire
14 Fuse
Neutral wire interface of
power supply
Interface of indoor fan

17
Technical Information
Service Manual
4568911
12
13
14
15
16
17
18
19
123710
● Top view
● Bottom view
Outdoor Unit
1Interface of compressor
2High pressure protection of
system
3Low-temperature cooling
temperature sensor
4Overload protection of
compressor
5Interface of temperature sensor
6Electronic expansion valve
7Low pressure protection of
system
8Interface of fan
9Interface of 4-way valve
10 Interface of 2-way valve
11 Electric heating belt of chassis
12 lectric heating belt of chassis
13 Communication interface for
indoor unit and outdoor unit
14 Live wire
15 Earthing wire
16 Neutral wire
17 Rectier
18 IGBT
19 IPM1