INVENTOR L4VI32-09, L4VO32-09, L4VI32-12, L4VO32-12 Service 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
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: Conguration of Connection Pipe ...................................................................141
Appendix 3: Pipe Expanding Method .................................................................................142
Appendix 4: List of Resistance for Temperature Sensor ....................................................143
Technical Information
1
Service Manual
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
2
Service Manual
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) m
3
/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 m
2
12-18
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
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 m
3
/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.
Technical Information
4
Service Manual
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) m
3
/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 m
2
16-24
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
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 m
3
/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.
Technical Information
6
Service Manual
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
Technical Information
7
Service Manual
Service Manual
2.4 Cooling and Heating Data Sheet in Rated Frequency
2.5 Noise Curve
Indoor side noise when blowing Outdoor side noise when blowing
Indoor fan motor rotating speed Compressor frequency(Hz)
Noise/dB(A)
50
60
30
40
20
Low
Middle
High
Super High
12K
09K
40
42
44
46
48
50
52
54
56
20 4030 50 60 70 80
90
Noise dB(A)
09&12K Cooling
09&12K Heating
Cooling:
Rated cooling
condition(°C) (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 (°C) T2 (°C)
27/19 35/24
09K
0.8 ~ 1.1
12 to 15 65 to 38
TURBO High
49
12K 11 to 14 64 to 37 60
27/19 35/24 18K 0.9 ~ 1.1 12 to 14 75 to 37 Super High High 52
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: 5 m.
Heating:
Rated cooling
condition(°C) (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 (°C) T2 (°C)
20/- 7/6
09K
2.8 ~ 3.2
35 to 63 2 to 5
TURBO High
59
12K 35 to 65 2 to 5 67
20/- 7/6 18K 2.2 ~ 2.4 70 to35 2 to 4 Super High High 65
09/12K
Technical Information
8
Service Manual
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
Unit:mm
Model W H D
09K 790 275 200
12K 845 289 209
W
12K
09K
D
H
90
150
54
168.5 462 159.5
Φ55
Φ55
54
123.5 542 179.5
83.2
124.7
35
Φ55
Φ55
35
Technical Information
9
Service Manual
Service Manual
3.2 Outdoor Unit
712
782
257
320
540
286
510
Unit:mm
257
780
596
842
286
540
320
Unit:mm
L4VO32-09
L4VO32-12
Technical Information
10
Service Manual
Service Manual
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
Strainer
Capillary
Accumlator
Compressor
4. Refrigerant System Diagram
Liquid pipe:1/4" (6mm)
Gas pipe:3/8" (9.52mm)
09/12K
Technical Information
11
Service Manual
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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L4VI32-09, L4VI32-12
Technical Information
12
Service Manual
Service Manual
● Outdoor Unit
600007000687
L4VO32-09
L4VO32-12
600007000763
Technical Information
13
Service Manual
Service Manual
No Name
1
Interface of communication wire for
indoor unit and outdoor unit
2 Interface of live wire
3
Interface of health function neutral
wire
4 Interface of neutral wire
5 Interface of fan
6 Interface of health function live wire
7 Jumper cap
8 Auto button
9 Up&down swing interface
10 Feedback interface of indoor unit
11 left&right swing interface
12 Interface of wi
13 Interface of tube temperature sensor
14 Wired controller
15 Display interface
16 Fuse
17 Terminal for gate control function
5.2 PCB Printed Diagram
Indoor Unit
● Top view
● Bottom view
1
2
16
3 4 5 6
7
8 9 10
11
12
13
14
15
17
Technical Information
14
Service Manual
Service Manual
● Top view
● Bottom view
1
2
3 4
5
6
7
8
9
10111213
Outdoor Unit
No. Name
1 Compressor wiring terminal
2 Reactor wiring terminal
3 Outdoor fan wiring terminal
4
Terminal of chassis electric
heater
5
Terminal of compressor
electric heater
6 Terminal of 4-way valve
7 Grounding wire
8 Communication wire
9
Neutral wire
10 Live wire
11
Terminal of electronic
expansion valve
12
Terminal of temperature
sensor
13 Compressor overload terminal
09/12K
Technical Information
15
Service Manual
Service Manual
6. Function and Control
6.1 Remote Controller Introduction
No. Button name Function
1 ON/OFF Turn on or turn off the unit
2 TURBO Set turbo function
3 MODE Set operation mode
4
Set up&down swing status
5 I FEEL Set I FEEL function
6 TEMP Switch temperature displaying type on the unit’s display
7
Set health function and air function
8 LIGHT Set light function
9 X-FAN Set X-FAN function
10 SLEEP Set sleep function
11 CLOCK Set clock of the system
12 TOFF Set timer off function
13 TON Set timer on function
14
Set left&right swing status
15 FAN Set fan speed
16 / Set temperature and time
6.2 Preparation before operation
When using the remote controller for the first time or after replacing the batteries,
please set the time of the system according to current time in the following steps:
(1).
Pressing CLOCK button, is blinking.
(2).
Pressing or button, the clock time will increase or decrease rapidly.
(3).
Press CLOCK button again to confirm the time and return to display current time.
6.3 Introduction of operation function
(1).
Selecting operation mode
In unit on status, press MODE button to select operation mode in following sequence:
(2).
Setting temperature
In unit on status, press
button to increase setting temperature and press button to decrease setting temperature. The
Note: Under auto mode, manual adjustment of temperature is not needed.
range of temperature is from 16ºC to 30ºC.
(3).
Adjusting fan speed
In unit on status, press FAN button to adjust fan speed in following sequence:
Notes:
①.
When operation mode changes, fan speed is memoried;
②.
Under dry mode, fan speed is low and can not be adjusted.
(4).
Setting swing function
Setting left&right swing
1).
Under simple swing status, press button to adjust left&right swing status;
Technical Information
16
Service Manual
Service Manual
2).
Under fixed-angle swing status, press button to adjust left&right swing angle circularly as below:
Note: operate continuously left&right swing in 2 seconds, swing states will change
according to above-mentioned order, or switch closed state and
state.
Setting up&down swing
1).
Under simple swing status, press button to adjust up&down swing status;
2).
Under fixed-angle swing status, press button to adjust up&down swing angle circularly as below:
Note: operate continuously left&right swing in 2 seconds, swing states will change according to above-mentioned order, or switch
closed state and state
(5).
Setting turbo function
Under cool or heat mode, press TURBO button to set turbo function.
When
is displayed, turbo function is on.
When
is not displayed, turbo function is off.
When turbo function is on, the unit operates in super high speed to achieve quick cooling or heating. When turbo function is off,
the unit operates in setting fan speed.
(6).
Setting light function
The light on the receiver light board will display present operation status. If you want to turn
off the light, please press LIGHT button. Press this button again to turn on the light.
(7).
Viewing ambient temperature
In unit on status, receiver light board or wired controller is defaulted to display setting
temperature. Press TEMP b
utton to view indoor or outdoor ambient temperature.
When
is displayed, it means the displayed temperature is setting temperature.
When
is displayed, it means the displayed temperature is indoor ambient temperature.
When is displayed, it means the displayed temperature is outdoor ambient temperature.
Note: setting temperature is always displayed in Remote Controller.
(8).
Setting X-FAN function
In cool or dry mode, press X-FAN button to set X-FAN function.
When
is displayed, X-FAN function is on.
When
is not displayed, X-FAN function is off.
When X-FAN function is on, the water on the evaporator will be blown away until turning off the unit to avoid mildew.
(9).
Setting health function
In unit on status, press
button to set health function.
When
is displayed, health function is on.
When
is not displayed, health function is off.
Health function is available when the unit is equipped with anion generator. When health function is on, the anion generator will start
operation, adsorbing the dusts and killing the bacteria in the room.
(10).
Setting air function
Press
button until is displayed, then air function is turned on.
Press
button until is disappeared, then air function is turned off.
When the indoor unit is connected with fresh air valve, air function setting can control the connection of fresh air valve, which can
control the fresh air volume and improve the air quality inside the room.
Technical Information
17
Service Manual
Service Manual
(11).
Setting sleep function
In unit on status, press SLEEP button to turn on or turn off sleep function.
When
is displayed, sleep function is on.
When
is not displayed, sleep function is off.
Notes:
①.
Sleep function can not be set in auto and fan mode;
②.
When turning off the unit or switching mode, sleep function is cancelled;
(12).
Setting I FEEL function
In unit on status, press I FEEL button to turn on or turn off I FEEL function.
When is displayed, I FEEL function is on.
When
is not displayed, I FEEL function is off.
When I FEEL function is turned on, the unit will adjust temperature according to the temperature detected by the remote controller
to achieve the best air-conditioning effect. In this case, you should place the remote controller within the valid receiving range.
(13).
Setting timer
You can set the operation time of unit as you need. You can also set timer on and timer off in combination.
Before setting, check if the time of the system is the same as the current time. If not, please set the time according to current time.
1).
Setting timer off
①.
Pressing TOFF button, “OFF” is blinking and time displaying zone displays the timer time of last setting
②.
Press or button to adjust the timer time.
③.
Press TOFF button again to confirm setting. OFF is displayed and time displaying zone resumes to display current time.
④.
Press TOFF button again to cancel timer and OFF is not displayed.
2).
Setting timer on
①.
Pressing TON button, “ON” is blinking and time displaying zone displays the timer time of last setting.
②.
Press or button to adjust the timer time.
③.
Press TON button again to confirm setting. ON is displayed and time displaying zone resumes to display current time.
④.
Press TON button again to cancel timer and ON is not displayed.
6.4 Introduction of special functions
(1).
Setting child lock
Press
and button simultaneously to lock the buttons on remote controller and is displayed.
Press
and button simultaneously again to unlock the buttons on remote controller and is not displayed.
If the buttons are locked,
blinks 3 times when pressing the button and any operation on the button is invalid.
(2).
Switching temperature scale
In unit off status, press MODE button and
button simultaneously to switch temperature scale between ºC and ºF.
(3).
Setting energy-saving function
In unit on status and under cool mode, press CLOCK and TEMP button
simultaneously to enter energy-saving mode.
u When
is displayed, energy-saving function is on.
u When
is not displayed, energy-saving function is off.
If you want to turn off the energy-saving function, press CLOCK and TEMP button and is not displayed.
Note: energy-saving function is only available in cooling mode and it will be exited when switching mode or setting sleep function.
(4).
Absence function
In unit on status and under heat mode, press CLOCK and TEMP button simultaneously to enter absence function.
Press CLOCK and TEMP button simultaneously again to exit absence function.
Temperature displaying zone resumes previous display and is not displayed.
Temperature displaying zone displays 8 and is displayed.
Technical Information
18
Service Manual
Service Manual
In winter, absence function can keep the indoor ambient temperature above 0ºC to avoid freezing.
Note: Absence function is only available in heating mode and it will be exited when switching mode or setting sleep function.
(1).
Lift the cover along the direction of arrow (as shown in Fig 1①).
(2).
Take out the original batteries (as shown in Fig 1②).
(3).
Place two 7# (AAA 1.5V) dry batteries, and make sure the position of “+” polar
and “ -” polar is correct (as shown in Fig 2 ③).
(4).
Reinstall the cover (as shown in Fig 2④).
Fig.1 Fig.2
Notes:
①.
The remote controller should be placed 1m away from the TV set or stereo sound sets.
②.
.egnar gniviecer sti nihtiw demrofrep eb dluohs rellortnoc etomer fo noitarepo ehT
③.
If you need to control the main unit, please point the remote controller at the signal receiving window of the main unit to improve
④.
When the remote controller is sending signal, “ ” icon will be blinking for 1 second. When the main unit receives valid remote
⑤.
If the remote controller does not operate normally, please take the batteries out and reinsert them after 30 seconds. If it still
can't operate properly, replace the batteries.
⑥.
When replacing the batteries, do not use old or different types of batteries, otherwise, it may cause malfunction.
⑦.
.seirettab eht tuo ekat esaelp ,emit gnol a rof rellortnoc etomer eht esu t’now uoy nehW
the receiving sensibility of main unit.
control signal, it will give out a sound
Technical Information
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Service Manual
Service Manual
6.5 Brief Description of Modes and Functions
1.Basic function of system
(1)Cooling mode
(1) Under this mode, fan and swing operates at setting status. Temperature setting range is 16~30OC.
(2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status.
(2)Drying mode
(1) Under this mode, fan operates at low speed and swing operates at setting status. Temperature setting range is 16~30OC.
(2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status.
(3) Protection status is same as that under cooling mode.
(4) Sleep function is not available for drying mode.
(3)Heating mode
(1) Under this mode, Temperature setting range is 16~30OC.
(2) Working condition and process for heating mode:
When turn on the unit under heating mode, indoor unit enters into cold air prevention status. When the unit is stopped or at OFF status,
and indoor unit has been started up just now, the unit enters into residual heat-blowing status.
(4)Working method for AUTO mode:
1.Working condition and process for AUTO mode:
a.Under AUTO mode, standard heating Tpreset=20OC and standard cooling Tpreset=25OC. The unit will switch mode automatically
according to ambient temperature.
2.Protection function
a. During cooling operation, protection function is same as that under cooling mode.
b. During heating operation, protection function is same as that under heating mode.
3. Display: Set temperature is the set value under each condition. Ambient temperature is (Tamb.-Tcompensation) for heat pump unit
and Tamb. for cooling only unit.
4. If theres I feel function, Tcompensation is 0. Others are same as above.
(5)Fan mode
Under this mode, indoor fan operates at set fan speed. Compressor, outdoor fan, 4-way valve and electric heating tube stop operation.
Indoor fan can select to operate at high, medium, low or auto fan speed. Temperature setting range is 16~30
O
C.
2. Other control
(1) Buzzer
Upon energization or availably operating the unit or remote controller, the buzzer will give out a beep.
(2) Auto button
If press this auto button when turning off the unit, the complete unit will operate at auto mode. Indoor fan operates at auto fan speed
and swing function is turned on. Press this auto button at ON status to turn off the unit.
(3) Auto fan
Heating mode: During auto heating mode or normal heating ode, auto fan speed will adjust the fan speed automatically according to
ambient temperature and set temperature.
(4) Sleep
After setting sleep function for a period of time, system will adjust set temperature automatically.
(5) Timer function:
General timer and clock timer functions are compatible by equipping remote controller with different functions.
(6) Memory function
memorize compensation temperature, off-peak energization value.
Memory content: mode, up&down swing, light, set temperature, set fan speed, general timer (clock timer cant be memorized).
After power recovery, the unit will be turned on automatically according to memory content.
(7) Health function
During operation of indoor fan, set health function by remote controller. Turn off the unit will also turn off health function.
Turn on the unit by pressing auto button, and the health is defaulted ON.
●
Indoor Unit
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Service Manual
(8)I feel control mode
After controller received I feel control signal and ambient temperature sent by remote controller, controller will work according to the ambient
temperature sent by remote controller.
(9)Entry condition for compulsory defrosting function
When turn on the unit under heating ode and set temperature is 16OC (or 16.5OC by remote controller), press “+, -, +, -, +, -” button
successively within 5s and then indoor unit will enter into compulsory defrosting setting status:
(1) If theres only indoor units controller, it enters into indoor normal defrosting mode.
(2) If theres indoor units controller and outdoor units controller, indoor unit will send compulsory defrosting mode signal to outdoor unit and
then outdoor unit will operate under normal defrosting mode. After indoor unit received the signal that outdoor unit has entered into defrosting
status, indoor unit will cancel to send compulsory mode to outdoor unit. If outdoor unit hasnt received feedback signal from outdoor unit after
3min, indoor unit will also cancel to send compulsory defrosting signal.
(10)Refrigerant recovery function:
Enter into Freon recovery mode actively: Within 5min after energization, turn on the unit at 16OC under cooling mode, and press light button
for 3 times within 3s to enter into Freon recovery mode. Fo is displayed and Freon recovery mode will be sent to outdoor unit.
(11)Ambient temperature display control mode
1. When user set the remote controller to display set temperature (corresponding remote control code: 01), current set temperature will be
displayed.
2. Only when remote control signal is switched to indoor ambient temperature display status (corresponding remote control code: 10) from
other display status (corresponding remote control code: 00, 01,11),controller will display indoor ambient temperature for 3s and then turn
back to display set temperature.
Under this mode, indoor fan operates at set fan speed. Compressor, outdoor fan, 4-way valve and electric heating tube stop operation.
Indoor fan can select to operate at high, medium, low or auto fan speed. Temperature setting range is 16~30
O
C.
(12)Off-peak energization function:
Adjust compressors minimum stop time. The original minimum stop time is 180s and then we change to:
The time interval between two start-ups of compressor cant be less than 180+Ts(0≤T≤15). T is the variable of controller. Thats to say the
minimum stop time of compressor is 180s~195s. Read-in T into memory chip when refurbish the memory chip each time. After power
recovery, compressor can only be started up after 180+T s at least.
(13) SE control mode
The unit operates at SE status.
(14) X-fan mode
When X-fan function is turned on, after turn off the unit, indoor fan will still operate at low speed for 2min and then the complete unit will be
turned off. When x-fan function is turned off, after turn off the unit, the complete unit will be turned off directly.
(15) 8OC heating function
Under heating mode, you can set 8OC heating function by remote controller. The system will operate at 8OC set temperature.
(16)Turbo function
Turbo function can be set under cooling and heating modes. Press Fan Speed button to cancel turbo setting. Turbo function is not available
under auto, drying and fan modes.
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1. Cooling mode:
Working condition and process of cooling mode:
①
When Tindoor ambient temperature≥Tpreset, unit enters into cooling mode. Indoor fan, outdoor fan and compressor start operation.
Indoor fan operates according to set fan speed.
②
When Tindoor ambient temperature≤Tpreset-2℃, compressor stops operation and outdoor fan will stop 30s later. Indoor fan operates
according to set fan speed.
③
When Tpreset-2℃＜Tindoor ambient temperature＜Tpreset, unit operates according to the previous status.
Under cooling mode, 4-way valve is not energized. Temperature setting range is 16~30℃. If compressor stops because of malfunction
in cooling mode, indoor fan and swing motor will work according to the original status.
2. Drying mode
(1) Working condition and process of drying mode
①
When Tindoor ambient temperature＞Tpreset, unit will be in drying mode. Outdoor fan and compressor start operation while indoor
fan will operate at low fan speed.
②
When Tpreset-2℃≤Tindoor ambient temperature≤Tpreset, unit operates according to the previous status.
③
When Tindoor ambient temperature＜Tpreset-2℃, compressor stops operation and outdoor fan will stop 30s later.
(2) Under drying mode, 4-way valve is not energized. Temperature setting range is 16~30℃.
(3) Protection function: same as in cooling mode.
3. Fan mode
(1) Under this mode, indoor fan can select different fan speed (except Turbo) or auto fan speed. Compressor, outdoor fan and 4-way
valve all stop operation.
(2) In fan mode, temperature setting range is 16~30℃.
4. Heating mode
Working condition and process of heating mode:
①
When Tpreset-(Tindoor ambient temperature-Tcompensation)≥1℃, unit enters into heating mode. Compressor, outdoor fan and 4-way
valve start operation.
②
When -2℃＜Tpreset-(Tindoor ambient temperature-Tcompensation)＜1℃, unit operates according to the previous
status.
③
When Tpreset-(Tindoor ambient temperature-Tcompensation)≤-2℃, compressor stops operation and outdoor fan will stop 30s later.
Indoor fan will be in residual-heat blowing status.
④
When unit is turned off under heating mode or changed to other modes from heating mode, 4-way valve will be power-off 2min after
compressor stops working (compressor is in operation status under heating mode).
⑤
When Toutdoor ambient temperature＞30℃, compressor stops operation immediately. Outdoor fan will stop 30s later.
⑥
Under the condition that compressor is turned on, when unit is changed to heating mode from cooling or drying mode, 4-way valve
will be energized in 2~3mins delay.
Note: Tcompensation is determined by IDU and ODU. If IDU controls the compensation temperature, then Tcompensation is
determined according to the value sent by IDU to ODU; If IDU does not control the compensation temperature, then Tcompensation will
default to 3℃ by the ODU.
5. Freon recovery mode
After the Freon recovery signal from IDU is received, cooling at rated frequency will be forcibly turned on to recover Freon.
Indoor unit will display Fo. If any signal from remote controller is received, unit will exit from Freon recovery mode and indoor unit stops
displaying Fo.
6. Compulsory defrosting
If unit is turned on under heating mode and set temperature is 16℃ (by remote controller), press “+, -, +, -, +, -” within 5s, unit will enter
into compulsory defrosting mode and send the signal to ODU. When the compulsory defrosting signal from ODU is received, IDU will exit
from the compulsory defrosting mode and stop sending the signal to ODU.
After ODU receives the compulsory defrosting code, it will start compulsory defrosting. Defrosting frequency and opening
angle will be the same as in normal defrosting mode. When compulsory defrosting is nished, the complete unit resumes
original status.
●
Outdoor Unit
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Service Manual
Service Manual
7. Auto mode
Auto mode is determined by controller of IDU. See IDU logic for details.
8. 8
O
C heating
Set temperature is 8
O
C. Display board of IDU displays 8OC. Under this mode, “Cold air prevention” function is shielded.
If compressor is operating under this mode, fan speed will adjust according to auto fan speed; if compressor stops operation
under this mode, indoor fan will be in residual-heat blowing status.
When power on, communication light will be blinking in a normal way (after receiving a group of correct signals,
blinking stops for 0.2s~0.3s). If theres no communication, communication light will be always on. If other ODU has
malfunction, communication light will be on for 1s and off for 1s in a circular way.
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Service Manual
Installation and Maintenance
24
Service Manual
Service Manual
Part
Ⅱ
: Installation and Maintenance
1. Select the installation location according to the requirement of this manual.(See the requirements in installation
part)
2. Handle unit transportation with care; the unit should not
be carried by only one person if it is more than 20kg.
3. When installing the indoor unit and outdoor unit, a sufcient xing bolt must be installed; make sure the installation
support is rm.
4. Ware safety belt if the height of working is above 2m.
5. Use equipped components or appointed components during installation.
6. Make sure no foreign objects are left in the unit after nishing installation.
Electrical Safety Precautions:
7. Notes for Installation and Maintenance
Safety Precautions:
Important!
Please read the safety precautions carefully before installation and maintenance.
The following contents are very important for installation
and maintenance.
Please follow the instructions below.
●The installation or maintenance must accord with the
instructions.
●Comply with all national electrical codes and local
electrical codes.
●Pay attention to the warnings and cautions in this
manual.
●All installation and maintenance shall be performed by
distributor or qualied person.
●All electric work must be performed by a licensed
technician according to local regulations and the
instructions given in this manual.
●Be caution during installation and maintenance. Prohibit
incorrect operation to prevent electric shock, casualty and
other accidents.
1. Cut off the power supply of air conditioner before
checking and maintenance.
2. The air condition must apply specialized circuit and
prohibit share the same circuit with other appliances.
3. The air conditioner should be installed in suitable
location and ensure the power plug is touchable.
4. Make sure each wiring terminal is connected firmly
during installation and maintenance.
5. Have the unit adequately grounded. The grounding
wire cant be used for other purposes.
6. Must apply protective accessories such as protective
boards, cable-cross loop and wire clip.
7. The live wire, neutral wire and grounding wire of
power supply must be corresponding to the live wire,
neutral wire and grounding wire of the air conditioner.
8. The power cord and power connection wires cant be
pressed by hard objects.
9. If power cord or connection wire is broken, it must be
replaced by a qualied person.
Warnings
Improper installation may lead to re hazard, explosion,
electric shock or injury.
Installation Safety Precautions:
10. If the power cord or connection wire is not long enough,
please get the specialized power cord or connection wire
from the manufacture or distributor. Prohibit prolong the wire
by yourself.
11. For the air conditioner without plug, an air switch must
be installed in the circuit. The air switch should be all-pole
parting and the contact parting distance should be more than
3mm.
12. Make sure all wires and pipes are connected properly and
the valves are opened before energizing.
13. Check if there is electric leakage on the unit body. If yes,
please eliminate the electric leakage.
14. Replace the fuse with a new one of the same specication
if it is burnt down; dont replace it with a cooper wire or
conducting wire.
15. If the unit is to be installed in a humid place, the circuit
breaker must be installed.
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