Lennox LNWR21X User manual

Service Manual
LNWR21X
LNWR39X
LNWR53X
LNWR59X
(Refrigerant R410A)
MODELS:

Service Manual
Table of Contents
Table of Contents
Part Ⅰ:Technical Information ................................................................ 1
1.Summary......................................................................................................... 1
2.Specications .............................................................................................. 2
3.Outline Dimension Diagram............................................................... 10
4.Refrigerant System Diagram ............................................................. 11
5.Electrical Part............................................................................................. 12
5.1 Wiring Diagram ............................................................................................ 12
5.2 PCB Printed Diagram................................................................................... 14
6.Function and Control............................................................................. 16
6.1 Introduction of Control Panel........................................................................ 16
6.2 Introduction of Remote Controller ................................................................ 17
6.3 Function Introduction.................................................................................... 20
Part Ⅱ:Installation and Maintenance............................................... 24
7.Notes for Installation and Maintenance....................................... 24
8.Installation ................................................................................................... 25
8.1 Selection of Installation Location.................................................................. 25
8.2 Requirements for Electric Connection.......................................................... 25
8.3 Installation Procedure .................................................................................. 26
8.4 Installation of Accessories............................................................................ 26
8.5 Drain Water .................................................................................................. 26
9.Maintenance................................................................................................ 27
9.1 Error Code.................................................................................................... 27
9.2 Malfunction of Temperature Sensor ............................................................. 28
9.3 Maintenance Method for Normal Malfunction .............................................. 29
10.Exploded View and Parts List......................................................... 32
11.Removal Procedure.............................................................................. 41
Appendix:......................................................................................................... 47
Appendix 1: Reference Sheet of Celsius and Fahrenheit .................................. 47
Appendix 2: List of Resistance for Ambient Temperature Sensor...................... 48

Service Manual
Technical Information 1
1.Summary
Part Ⅰ:Technical Information
Models:
LNWR21X
LNWR39X
LNWR53X
LNWR59X
YX1F
Remote Controller :
ON/OFF MODE
FAN SWING
SLEEP TIMER
+
-
AUTO
COOL
DRY
FAN
HEAT
T-ON T-OFF
SWING
SLEEP
LOCK
SPEED

Service Manual
Technical Information
2
2.Specications
Parameter Unit Value
Model LNWR21X
Product Code CC052022701_K79014
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Cooling Capacity W 2200
Heating Capacity W 1900
Cooling Power Input W 660
Heating Power Input W 570
Cooling Power Current A 2.87
Heating Power Current A 2.50
Rated Input W 900
Rated Current A 5.00
Air Flow Volume(H/M/L) m3/h 470/420/370
Dehumidifying Volume L/h 0.5
EER W/W 3.33
COP W/W 3.33
Application Area m27-12
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for the Discharge Side MPa 4.3
Permissible Excessive Operating Pressure for the Suction Side MPa 2.5
Dimension (WXHXD) mm 560X375X668
Dimension of Carton Box (LXWXH) mm 763X620X410
Dimension of Package (LXWXH) mm 766X623X503
Net Weight kg 44.0
Gross Weight kg 48.0
Refrigerant R410A
Refrigerant Charge kg 0.75
Indoor
Side
Fan Type Centrifugal
Diameter Length(DXL) mm Φ205.5X111
Fan Motor Speed(H/M/L) r/min 930/870/810
Output of Fan Motor W 60
Fan Motor RLA A 0.50
Fan Motor Capacitor μF 3.5
Input of Heater W /
Evaporator Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Row-n Gap mm 3-1.3
Coil Length (LXDXW) mm 330X38.1X323.9
Swing Motor Model MP24VA
Output of Swing Motor W 1.5
Fuse A 3.15
Sound Pressure Level (H/M/L) dB (A) 49/47/45
Sound Power Level (H/M/L) dB (A) 59/57/55

Service Manual
Technical Information 3
The above data is subject to change without notice; please refer to the nameplate of the unit.
Outdoor
Side
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD
Compressor Model QXA-B080C190
Compressor Oil RB68EP
Compressor Type Rotary
L.R.A. A 17.00
Compressor RLA A 3.20
Compressor Power Input W 660
Overload Protector Internal
Throttling Method Capillary
Operation Temp ºC 16~30
Ambient Temp (Cooling) ºC 18~43
Ambient Temp (Heating) ºC -7~30
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Rows-n Gap mm 2-1.4
Coil Length (LXDXW) mm 771X25.4X342.9
Fan Motor Speed(H/M/L) rpm 930/870/810
Output of Fan Motor W 60
Fan Motor RLA A 0.50
Fan Motor Capacitor μF 3.5
Air Flow Volume of Outdoor Side m3/h 850
Fan Type Axial-ow
Fan Diameter mm Φ353
Sound Pressure Level (H/M/L) dB (A) 57/55/53
Sound Power Level (H/M/L) dB (A) 67/65/63
Defrosting Method Automatic Defrosting

Service Manual
Technical Information
4
Parameter Unit Value
Model LNWR39X
Product Code CC052020401_K79014
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Cooling Capacity W 3900
Heating Capacity W 3600
Cooling Power Input W 1180
Heating Power Input W 1090
Cooling Power Current A 5.36
Heating Power Current A 4.70
Rated Input W 1600
Rated Current A 8.10
Air Flow Volume(H/M/L) m3/h 630/580/530
Dehumidifying Volume L/h 1.5
EER W/W 3.31
COP W/W 3.30
Application Area m216-24
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for the Discharge Side MPa 4.3
Permissible Excessive Operating Pressure for the Suction Side MPa 2.5
Dimension (WXHXD) mm 660X428X700
Dimension of Carton Box (LXWXH) mm 790X736X490
Dimension of Package (LXWXH) mm 793X739X583
Net Weight kg 57.0
Gross Weight kg 62.0
Refrigerant R410A
Refrigerant Charge kg 1.10
Indoor
Side
Fan Type Centrifugal
Diameter Length(DXL) mm Φ201.5X109.5
Fan Motor Speed(H/M/L) r/min 850/750/650
Output of Fan Motor W 88
Fan Motor RLA A 0.58
Fan Motor Capacitor μF 6
Input of Heater W /
Evaporator Form Alumium Tube
Pipe Diameter mm Φ7
Row-n Gap mm 4-1.6
Coil Length (LXDXW) mm 392X50.8X381
Swing Motor Model MP28ED
Output of Swing Motor W 2.0
Fuse A 3.15
Sound Pressure Level (H/M/L) dB (A) 53/51/49
Sound Power Level (H/M/L) dB (A) 63/61/59

Service Manual
Technical Information 5
Outdoor
Side
Compressor Manufacturer/Trademark ZHUHAI LANDA COMPRESSOR CO., LTD
Compressor Model QXA-C139B030A
Compressor Oil RB68EP
Compressor Type Rotary
L.R.A. A 26.00
Compressor RLA A 5.50
Compressor Power Input W 1165
Overload Protector UP3-03/HPA-430
Throttling Method Capillary
Operation Temp ºC 16~30
Ambient Temp (Cooling) ºC 18~43
Ambient Temp (Heating) ºC -7~30
Condenser Form Aluminum Fin-copper Tube
Pipe Diameter mm Φ7
Rows-n Gap mm 3-1.4
Coil Length (LXDXW) mm 691X38.1X400
Fan Motor Speed(H/M/L) rpm 840/780/730
Output of Fan Motor W 88
Fan Motor RLA A 0.58
Fan Motor Capacitor μF 6
Air Flow Volume of Outdoor Side m3/h 1200
Fan Type Axial-ow
Fan Diameter mm Φ396
Sound Pressure Level (H/M/L) dB (A) 58/56/54
Sound Power Level (H/M/L) dB (A) 68/66/64
Defrosting Method Automatic Defrosting
The above data is subject to change without notice; please refer to the nameplate of the unit.

Service Manual
Technical Information
6
Model LNWR53X
Product Code CC052020500_K79014
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Cooling Capacity W 5300
Heating Capacity W 5000
Cooling Power Input W 1600
Heating Power Input W 1500
Cooling Current Input A 6.96
Heating Current Input A 6.50
Rated Input W 2000
Rated Current A 10.10
Air Flow Volume(H/M/L) m3/h 850/800/750
Dehumidifying Volume L/h 2.2
EER W/W 3.31
COP W/W 3.33
Application Area m223-34
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for the Discharge Side MPa 4.3
Permissible Excessive Operating Pressure for the Suction Side MPa 2.5
Dimension (WXHXD) mm 660X428X770
Dimension of Carton Box (LXWXH) mm 736X860X500
Dimension of Package (LXWXH) mm 739X863X515
Net Weight kg 68.0
Gross Weight kg 73.0
Refrigerant R410A
Refrigerant Charge kg 1.30
Indoor Side
Fan Type Centrifugal
Fan Diameter Length(DXL) mm Φ201.5X109.5
Cooling Speed (H/M/L) r/min 1140/1040/940
Heating Speed (H/M/L) r/min /
Fan Motor Power Output W 200
Fan Motor RLA A 0.80
Fan Motor Capacitor μF 7
Electric Heating Power Input W /
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Φ7
Evaporator Row-n Gap mm 4-1.6
Evaporator Coil Length (LXDXW) mm 392X50.8X381
Swing Motor Model MP28ED
Swing Motor Power Output W 2.0
Fuse Current A 3.15
Sound Pressure Level (H/M/L) dB(A) 55/53/51
Sound Power Level (H/M/L) dB(A) 65/63/61

Service Manual
Technical Information 7
Outdoor
Side
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD
Compressor Model QXA-F19F090
Compressor Oil RB68EP
Compressor Type Rotary
Compressor LRA. A 40.00
Compressor RLA A 7.25
Compressor Power Input W 1590
Compressor Overload Protector Internal
Throttling Method Capillary
Set Temperature Range ºC 16~30
Cooling Operation Ambient Temperature Range ºC 18~43
Heating Operation Ambient Temperature Range ºC -7~30
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7
Condenser Rows-n Gap mm 3-1.4
Condenser Coil Length (LXDXW) mm 885X38.1X408
Fan Motor Speed rpm 1140/1040/940
Fan Motor Power Output W 200
Fan Motor RLA A0.80
Fan Motor Capacitor μF 7
Outdoor Unit Air Flow Volume m3/h 1800
Fan Type Axial-ow
Fan Diameter mm Φ396
Sound Pressure Level (H/M/L) dB (A) 63/60/58
Sound Power Level (H/M/L) dB (A) 73/70/68
Defrosting Method Automatic Defrosting
The above data is subject to change without notice; please refer to the nameplate of the unit.

Service Manual
Technical Information
8
Model LNWR59X
Product Code CC052020600_K79014
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Cooling Capacity W 6000
Heating Capacity W 5500
Cooling Power Input W 1810
Heating Power Input W 1660
Cooling Current Input A 7.87
Heating Current Input A 7.20
Rated Input W 2300
Rated Current A 11.62
Air Flow Volume(H/M/L) m3/h 850/800/750
Dehumidifying Volume L/h 2.2
EER W/W 3.31
COP W/W 3.31
Application Area m227-42
Climate Type T1
Isolation I
Moisture Protection IP24
Permissible Excessive Operating Pressure for the Discharge Side MPa 4.3
Permissible Excessive Operating Pressure for the Suction Side MPa 2.5
Dimension (WXHXD) mm 660X428X770
Dimension of Carton Box (LXWXH) mm 736X860X500
Dimension of Package (LXWXH) mm 739X863X515
Net Weight kg 70.0
Gross Weight kg 75.0
Refrigerant R410A
Refrigerant Charge kg 1.45
Indoor Side
Fan Type Centrifugal
Fan Diameter Length(DXL) mm Φ201.5X109.5
Cooling Speed (H/M/L) r/min 1140/1040/940
Heating Speed (H/M/L) r/min /
Fan Motor Power Output W 200
Fan Motor RLA A 0.80
Fan Motor Capacitor μF 7
Electric Heating Power Input W /
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Φ7
Evaporator Row-n Gap mm 4-1.6
Evaporator Coil Length (LXDXW) mm 392X50.8X381
Swing Motor Model MP28ED
Swing Motor Power Output W 2.0
Fuse Current A 3.15
Sound Pressure Level (H/M/L) dB(A) 56/54/52
Sound Power Level (H/M/L) dB(A) 66/64/62