INVENTOR L4VI32-09 User manual

•SERVICE MANUAL
ENGLISH
WALL MOUNTED UNIT
AIR CONDITIONING SYSTEMS
MODELS:
L4VI32-09/L4VO32-09
L4VI32-12/L4VO32-12

Service Manual

Service Manual
Table of Contents
Service Manual
Table of Contents
Part Ⅰ: Technical Information.......................................................................1
1. Summary......................................................................................................................1
..........................................................................................................2
...........................................................................................................2
2.2 Operation Characteristic Curve ........................................................................................6
2.3 Capacity Variation Ratio According to Temperature ....................................................... ..6
2.4 Cooling and Heating Data Sheet in Rated Frequency .....................................................7
2.5 Noise Curve......................................................................................................................7
3. Outline Dimension Diagram........................................................................8
3.1 Indoor Unit........................................................................................................................8
3.2 Outdoor Unit .....................................................................................................................9
4. Refrigerant System Diagram....................................................................10
5. Electrical Part.........................................................................................................11
5.1 Wiring Diagram...............................................................................................................11
5.2 PCB Printed Diagram .....................................................................................................13
6. Function and Control......................................................................................15
6.1 Remote Controller Introduction .....................................................................................15
6.2 Preparation before operation..........................................................................................15
6.3 Introduction of operation function ..................................................................................15
6.4 Introduction of special functions ....................................................................................17
6.5 Brief Description of Modes and Functions......................................................................19
Part Ⅱ: Installation and Maintenance .................................................24
7. Notes for Installation and Maintenance..........................................24
8. Installation................................................................................................................28
8.1 Installation Dimension Diagram......................................................................................28
8.2 Installation Parts-checking ............................................................................................30
8.3 Selection of Installation Location....................................................................................30
8.4 Requirements for electric connection .............................................................................30
8.5 Installation of Indoor Unit................................................................................................30
8.6 Installation of Outdoor Unit.............................................................................................33
8.7 Vacuum Pumping and Leak Detection ...........................................................................34
8.8 Check after Installation and Test Operation ...................................................................34
Table of Contents

Service Manual
Table of contents
Service Manual
9. Maintenance............................................................................................................74
9.1 Error Code List ...............................................................................................................74
9.2 Procedure of Troubleshooting ........................................................................................82
9.3 Troubleshooting for Normal Malfunction.........................................................................97
10. Exploded View and Parts List ..............................................................99
10.1 Indoor Unit....................................................................................................................99
10.2 Outdoor Unit ...............................................................................................................109
11. Removal Procedure.....................................................................................116
11.1 Removal Procedure of Indoor Unit .............................................................................116
11.2 Removal Procedure of Outdoor Unit ..........................................................................126
Appendix:......................................................................................................................141
Appendix 1: Reference Sheet of Celsius and Fahrenheit ..................................................141
Appendix 2: Conguration of Connection Pipe...................................................................141
Appendix 3: Pipe Expanding Method .................................................................................142
Appendix 4: List of Resistance for Temperature Sensor ....................................................143
Table of Contents

Technical Information 1
Service Manual
1
Technical Information
Service Manual
Part Ⅰ: Technical Information
1. Summary
Indoor Unit
L4VI32-09, L4VI32-12
Outdoor Unit
L4VO32-09 L4VO32-12
Remote Controller
YAN1F1

Technical Information
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Service Manual
3
Technical Information
Service Manual
Parameter Unit Value
Model L4VI32-09
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min~Max) W 2600(500~3350)
Heating Capacity(Min~Max) W 2800(500~3500)
Cooling Power Input(Min~Max) W 805(160~1400)
Heating Power Input(Min~Max) W 755(200~1500)
Cooling Current Input A 3.9
Heating Current Input A 3.4
Rated Input W 1500
Rated Current A 6.3
Air Flow Volume(SH/H/M//L/SL) m3/h 560/490/430/330/-
Dehumidifying Volume L/h 0.8
EER W/W 3.23
COP W/W 3.71
SEER W/W 6.1
SCOP(Average/Warmer/Colder) W/W 4.0/5.1/3.2
Application Area m212-18
Indoor
Unit
Indoor Unit Model L4VI32-09
Fan Type
Fan Diameter Length(DXL) mm Ф98X580
Cooling Speed(SH/H/M//L/SL) r/min 1300/1200/1050/800/-
Heating Speed(SH/H/M//L/SL) r/min 1300/1200/1050/900/-
Fan Motor Power Output W 20
Fan Motor RLA A 0.215
Fan Motor Capacitor μF 1
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф5
mm 2-1.4
Evaporator Coil Length (LXDXW) mm 584X22.8X266.7
Swing Motor Model MP24AA
Swing Motor Power Output W 1.5
Fuse Current A 3.15
Sound Pressure Level(SH/H/M//L/
SL) dB (A) 39/36/32/28/-
Sound Power Level(SH/H/M//L/SL) dB (A) 55/52/44/38/-
Dimension (WXHXD) mm 790X275X200
Dimension of Carton Box (LXWXH) mm 863X268X352
Dimension of Package(LXWXH) mm 866X271X367
Net Weight kg 9
Gross Weight kg 11

Technical Information 3
Service Manual
4Technical 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 L4VI32-12
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR
CO.,LTD
Compressor Model QXF-B096zE190A
Compressor Oil FW68DA
Compressor Type Rotary
Compressor LRA. A 20.00
Compressor RLA A 4.21
Compressor Power Input W 943
Compressor Overload Protector 1NT11L-6233 HPC115/95U1
KSD115ºC
Throttling Method Capillary
Set Temperature Range ºC 16~30
Cooling Operation Ambient Temperature
Range ºC -15~43
Heating Operation Ambient Temperature
Range ºC -15~24
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7
mm 1-1.4
Condenser Coil Length (LXDXW) mm 710X19.05X508
Fan Motor Speed rpm 900
Fan Motor Power Output W 30
Fan Motor RLA A 0.36
Fan Motor Capacitor μF /
Outdoor Unit Air Flow Volume m3/h 1600
Fan Type
Fan Diameter mm Φ400
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
Permissible Excessive Operating
Pressure for the Discharge Side MPa 4.3
Permissible Excessive Operating
Pressure for the Suction Side MPa 2.5
Sound Pressure Level (H/M/L) dB (A) 52/-/-
Sound Power Level (H/M/L) dB (A) 61/-/-
Dimension(WXHXD) mm 782X540X320
Dimension of Carton Box (LXWXH) mm 820X355X580
Dimension of Package(LXWXH) mm 823X358X595
Net Weight kg 29.5
Gross Weight kg 32
Refrigerant R32
Refrigerant Charge kg 0.6
Connection
Pipe
Connection Pipe Length m 5
Connection Pipe Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ9.52
Max Distance Height m 10
Max Distance Length m 19
Note: The connection pipe applies metric diameter.
3
Technical Information
Service Manual
Parameter Unit Value
Model L4VI32-09
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min~Max) W 2600(500~3350)
Heating Capacity(Min~Max) W 2800(500~3500)
Cooling Power Input(Min~Max) W 805(160~1400)
Heating Power Input(Min~Max) W 755(200~1500)
Cooling Current Input A 3.9
Heating Current Input A 3.4
Rated Input W 1500
Rated Current A 6.3
Air Flow Volume(SH/H/M//L/SL) m3/h 560/490/430/330/-
Dehumidifying Volume L/h 0.8
EER W/W 3.23
COP W/W 3.71
SEER W/W 6.1
SCOP(Average/Warmer/Colder) W/W 4.0/5.1/3.2
Application Area m212-18
Indoor
Unit
Indoor Unit Model L4VI32-09
Fan Type
Fan Diameter Length(DXL) mm Ф98X580
Cooling Speed(SH/H/M//L/SL) r/min 1300/1200/1050/800/-
Heating Speed(SH/H/M//L/SL) r/min 1300/1200/1050/900/-
Fan Motor Power Output W 20
Fan Motor RLA A 0.215
Fan Motor Capacitor μF 1
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф5
mm 2-1.4
Evaporator Coil Length (LXDXW) mm 584X22.8X266.7
Swing Motor Model MP24AA
Swing Motor Power Output W 1.5
Fuse Current A 3.15
Sound Pressure Level(SH/H/M//L/
SL) dB (A) 39/36/32/28/-
Sound Power Level(SH/H/M//L/SL) dB (A) 55/52/44/38/-
Dimension (WXHXD) mm 790X275X200
Dimension of Carton Box (LXWXH) mm 863X268X352
Dimension of Package(LXWXH) mm 866X271X367
Net Weight kg 9
Gross Weight kg 11

Technical Information
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Service Manual
5
Technical Information
Service Manual
Parameter Unit Value
Model L4VI32-12
Power
Supply
Rated Voltage V~ 220-240
Rated Frequency Hz 50
Phases 1
Power Supply Mode Outdoor
Cooling Capacity(Min~Max) W 3500(800~3700)
Heating Capacity(Min~Max) W 3670(900~380)
Cooling Power Input(Min~Max) W 1085(220~1400)
Heating Power Input(Min~Max) W 990(220~1500)
Cooling Current Input A 5.0
Heating Current Input A 4.5
Rated Input W 1500
Rated Current A 7.2
Air Flow Volume(SH/H/M//L/SL) m3/h 680/590/490/420/-
Dehumidifying Volume L/h 1.4
EER W/W 3.26
COP W/W 3.71
SEER W/W 6.1
SCOP(Average/Warmer/Colder) W/W 4.0/5.1/3.4
Application Area m216-24
Indoor
Unit
Indoor Unit Model L4VI32-12
Fan Type
Fan Diameter Length(DXL) mm Φ98X633.5
Cooling Speed(SH/H/M//L/SL) r/min 1350/1200/1050/850/-
Heating Speed(SH/H/M//L/SL) r/min 1300/1150/1000/900/-
Fan Motor Power Output W 20
Fan Motor RLA A 0.31
Fan Motor Capacitor μF 1.5
Evaporator Form Aluminum Fin-copper Tube
Evaporator Pipe Diameter mm Ф5
mm 2-1.5
Evaporator Coil Length (LXDXW) mm 635X22.8X306.3
Swing Motor Model MP24BA
Swing Motor Power Output W 2
Fuse Current A 3.15
Sound Pressure Level(SH/H/M//L/SL) dB (A) 42/38/34/31/-
Sound Power Level(SH/H/M//L/SL) dB (A) 56/52/48/45/-
Dimension (WXHXD) mm 845X289X209
Dimension of Carton Box (LXWXH) mm 918X278X364
Dimension of Package(LXWXH) mm 921X281X379
Net Weight kg 10.5
Gross Weight kg 12.5

Technical Information 5
Service Manual
6Technical 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 L4VO32-12
Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD
Compressor Model QXF-B096zE190A
Compressor Oil FW68DA
Compressor Type Rotary
Compressor LRA. A 20
Compressor RLA A 4.21
Compressor Power Input W 943
Compressor Overload Protector 1NT11L-6233 HPC115/95U1 KSD115ºC
Throttling Method Capillary
Set Temperature Range ºC 16~30
Cooling Operation Ambient Temperature
Range ºC -15~43
Heating Operation Ambient Temperature
Range ºC -15~24
Condenser Form Aluminum Fin-copper Tube
Condenser Pipe Diameter mm Φ7.94
mm 1-1.4
Condenser Coil Length (LXDXW) mm 731X19.05X550
Fan Motor Speed rpm 900
Fan Motor Power Output W 30
Fan Motor RLA A 0.36
Fan Motor Capacitor μF /
Outdoor Unit Air Flow Volume m3/h 2200
Fan Type
Fan Diameter mm Φ438
Defrosting Method Automatic Defrosting
Climate Type T1
Isolation I
Moisture Protection IPX4
Permissible Excessive Operating
Pressure for the Discharge Side MPa 4.3
Permissible Excessive Operating
Pressure for the Suction Side MPa 2.5
Sound Pressure Level (H/M/L) dB (A) 53/-/-
Sound Power Level (H/M/L) dB (A) 62/-/-
Dimension(WXHXD) mm 848X596X320
Dimension of Carton Box (LXWXH) mm 878X360X630
Dimension of Package(LXWXH) mm 881X363X645
Net Weight kg 31
Gross Weight kg 34
Refrigerant R32
Refrigerant Charge kg 0.7
Connection
Pipe
Connection Pipe Length m 5
Connection Pipe Gas Additional Charge g/m 20
Outer Diameter Liquid Pipe mm Φ6
Outer Diameter Gas Pipe mm Φ9.52
Max Distance Height m 10
Max Distance Length m 20
Note: The connection pipe applies metric diameter.

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Technical Information
Service Manual
2.2 Operation Characteristic Curve
2.3 Capacity Variation Ratio According to Temperature
gnitaeHgnilooC
50
60
70
80
90
100
110
120
130
32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
Capacity ratio(%)
Outdoor temp. (°C)
Capacity ratio(
%)
–15 –10 –5
110
100
90
80
70
60
50
40
0 5 7 10
Conditions
Indoor:DB20°C
Indoor air flow:Super High
Pipe length:5m
Outdoor temp.(°C)
Condition
Indoor:DB27°C WB19°C
Indoor air flow:
High
Pipe length:5m
Heating operation ambient temperature range is -15ºC~24ºC
0 10 20 30 40 50 60 70 90 0 10 20 30 40 50 60 70 80 90 100
120
110
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
220V
230V
240V
220V
230V
240V
Conditions
Indoor: DB27°C/WB19°C
Outdoor: DB35°C/WB24°C
Indoor air flow: High
Pipe length: 5m
Conditions
Indoor: DB20°C/WB15°C
Outdoor: DB7°C/WB6°C
Indoor air flow: High
Pipe length: 5m
Cooling Heating