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.