Page 1
SERVICE MANUAL
ASH-18AIM2 PT, ASH-24AIM2 PT
MATRIX SERIE
Page 2
Page 3
Service Manual
Table of Contents
Table of Contents
Part
Ⅰ
: Technical Information
.......................................................................1
1. Summary
......................................................................................................................1
2. Specications
..........................................................................................................2
2.1 Specication Sheet ...........................................................................................................2
2.2 Operation Characteristic Curve ........................................................................................4
2.3 Capacity Variation Ratio According to Temperature .........................................................4
2.4 Cooling and Heating Data Sheet in Rated Frequency .....................................................5
2.5 Noise Curve ......................................................................................................................5
3. Outline Dimension Diagram
........................................................................6
3.1 Indoor Unit ........................................................................................................................6
3.2 Outdoor Unit .....................................................................................................................7
4. Refrigerant System Diagram
......................................................................8
5. Electrical Part
...........................................................................................................9
5.1 Wiring Diagram .................................................................................................................9
5.2 PCB Printed Diagram .....................................................................................................11
6. Function and Control
......................................................................................13
6.1 Remote Controller Introduction .....................................................................................13
6.2 Brief Description of Modes and Functions ......................................................................17
Part
Ⅱ
: Installation and Maintenance
.................................................26
7. Notes for Installation and Maintenance
..........................................26
8. Installation
................................................................................................................28
8.1 Installation Dimension Diagram ......................................................................................28
8.2 Installation Parts-checking ............................................................................................30
8.3 Selection of Installation Location ....................................................................................30
8.4 Electric Connection Requirement ..................................................................................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
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Service Manual
9. Maintenance
............................................................................................................35
9.1 Malfunction Display of Indoor Unit ..................................................................................35
9.2 Procedure of Troubleshooting ........................................................................................37
9.3 Troubleshooting for Normal Malfunction .........................................................................54
10. Exploded View and Parts List
..............................................................56
10.1 Indoor Unit ....................................................................................................................56
10.2 Outdoor Unit .................................................................................................................60
11. Removal Procedure
.......................................................................................64
11.1 Removal Procedure of Indoor Unit ...............................................................................64
11.2 Removal Procedure of Outdoor Unit ............................................................................69
Appendix:
........................................................................................................................80
Appendix 1: Reference Sheet of Celsius and Fahrenheit ....................................................80
Appendix 2: Conguration of Connection Pipe .....................................................................80
Appendix 3: Pipe Expanding Method ...................................................................................81
Appendix 4: List of Resistance for Temperature Sensor ......................................................82
Page 5
1
Technical Information
Service Manual
1. Summary
Part
Ⅰ
: Technical Information
Indoor Unit
ASH-18AIM2 PT
ASH-24AIM2 PT
Outdoor Unit
ASH-18AIM2 PT
ASH-24AIM2 PT
Remote Controller
YAA1FB
/
F
C
HOUR
ONOFF
Page 6
2
Technical Information
Service Manual
2. Specications
2.1 Specication Sheet
Model ASH-18AIM2 PT ASH-24AIM2 PT
Product Code CB304002501_L31222 CB304002801_L31222
Power
Supply
Rated Voltage V~ 220-240 220-240
Rated Frequency Hz 50 50
Phases 1 1
Power Supply Mode outdoor outdoor
Cooling Capacity W 5275(1260~6600) 6450(2530~6800)
Heating Capacity W 5800(1120~6800) 7000(2530~7600)
Cooling Power Input W 1625(380~2650) 2180(600~2650)
Heating Power Input W 1760(350~2650) 2220(600~2800)
Cooling Power Current A 7.2 9.7
Heating Power Current A 7.8 9.8
Rated Input W 2650 2800
Rated Current A 11.8 12.4
Air Flow Volume(SH/H/M/L/SL) m
3
/h 850/780/650/550/- 1000/800/700/550/-
Dehumidifying Volume L/h 1.80 2
EER W/W 3.25 2.96
COP W/W 3.30 3.15
SEER W/W 6.1 6.1
HSPF W/W / /
Application Area m
2
23-34 27-42
Indoor Unit
Model of indoor unit ASH-18AIM2 PT ASH-24AIM2 PT
Indoor Unit Product Code CB304N02500_L31222 CB304N02800_L31222
Fan Type Cross-ow Cross-ow
Diameter Length(DXL) mm Φ98X710 Φ100X765
Fan Motor Cooling Speed(SH/H/M/L/SL) r/min 1350/1200/1000/800/- 1350/1150/950/850/Fan Motor Heating Speed(SH/H/M/L/SL) r/min 1420/1250/1100/950/- 1400/1200/1000/900/-
Output of Fan Motor W 20 35
Fan Motor RLA A 0.31 0.31
Fan Motor Capacitor μF 1.5 2.5
Evaporator Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Row-n Gap mm 2-1.4 2-1.5
Coil Length (LXDXW) mm 715X25.4X304.8 765X25.4X342.9
Swing Motor Model MP28VB MP35XX
Output of Swing Motor W 2 2.5
Fuse A 3.15 3.15
Sound Pressure Level (SH/H/M/L/SL) dB (A) 48/43/40/35/- 51/47/42/39/Sound Power Level (SH/H/M/L/SL) dB (A) 58/53/50/45/- 61/57/52/49/Dimension (WXHXD) mm 945X298X211 1018X315X230
Dimension of Carton Box (LXWXH) mm 1010X380X285 1083X395X313
Dimension of Package (LXWXH) mm 1013X383X300 1086X398X328
Net Weight kg 12 15
Gross Weight kg 15 18.5
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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 ASH-18AIM2 PT ASH-24AIM2 PT
Outdoor Unit Product Code CB404W03401_L31222 CB404W03801_L31222
Compressor Manufacturer/Trademark
ZHUHAI LANDA
COMPRESSOR CO.,LTD
ZHUHAI LANDA
COMPRESSOR CO.,LTD
Compressor Model QXA-B141zF030A QXA-B141zF030A
Compressor Oil 68EP 68EP
Compressor Type Rotary Rotary
L.R.A. A 25 25
Compressor RLA A 7.2 7.2
Compressor Power Input W 1440 1440
Overload Protector
1NT11L-6233 or KSD115oC or
HPC115/95U1
1NT11L-6233 or KSD115oC or
HPC115/95U1
Throttling Method Capillary Capillary
Operation Temp
o
C 16~30 16~30
Ambient Temp (Cooling)
o
C -15~43 -15~43
Ambient Temp (Heating)
o
C -20~24 -20~24
Condenser Form Aluminum Fin-copper Tube Aluminum Fin-copper Tube
Pipe Diameter mm Φ7 Φ7
Rows-n Gap mm 2-1.4 2-1.4
Coil Length (LXDXW) mm 851X38.1X660 984X38.1X748
Fan Motor Speed rpm 750 800
Output of Fan Motor W 60 90
Fan Motor RLA A / /
Fan Motor Capacitor μF / /
Air Flow Volume of Outdoor Unit m3/h 3200 4000
Fan Type Axial-ow Axial-ow
Fan Diameter mm Φ520 Φ552
Defrosting Method Automatic Defrosting Automatic Defrosting
Climate Type T1 T1
Isolation I I
Moisture Protection IP24 IP24
Permissible Excessive Operating Pressure for
the Discharge Side
MPa 4.3 4.3
Permissible Excessive Operating Pressure for
the Suction Side
MPa 2.5 2.5
Sound Pressure Level (H/M/L) dB (A) 56/-/- 58/-/Sound Power Level (H/M/L) dB (A) 66/-/- 68/-/Dimension (WXHXD) mm 963X700X396 1000X790X427
Dimension of Carton Box (LXWXH) mm 1026X455X735 1080X485X840
Dimension of Package (LXWXH) mm 1029X458X750 1083X488X855
Net Weight kg 45 55
Gross Weight kg 49.5 60
Refrigerant R410A R410A
Refrigerant Charge kg 1.35 1.80
Connection
Pipe
Length m 5 5
Gas Additional Charge g/m 20 50
Outer Diameter Liquid Pipe mm Φ6 Φ6
Outer Diameter Gas Pipe mm Φ12 Φ16
Max Distance Height m 10 10
Max Distance Length m 25 25
Note: The connection pipe applies metric diameter.
Page 8
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Technical Information
Service Manual
2.2 Operation Characteristic Curve
2.3 Capacity Variation Ratio According to Temperature
01020304050607090010 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 ( t n e r r u C
11
10
9
8
7
6
5
4
3
2
1
0
Compressor speed (rps)
) A ( t n e r r u C
220V
230V
240V
220V
230V
240V
01020304050607090010 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: 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
Conditions
Indoor: DB20°C/WB15°C
Outdoor: DB7°C/WB6°C
Indoor air flow: High
Pipe length: 5m
Cooling Heating
Cooling Heating
32 33 34 35 36 37 38 39 43
–15 –10 –5
40 41 42
100
105
95
90
85
80
75
70
65
60
55
50
110
100
90
80
70
60
50
40
05710
Conditions
Indoor:DB27°C/WB19°C
Indoor air flow:Super High
Pipe length: 5m
Conditions
Indoor:DB20°C/WB15°C
Indoor air flow:Super High
Pipe length: 5m
Outdoor temp.(°C) Outdoor temp.(°C)
Capacity ratio (%)
Capacity ratio (%)
30
40
50
60
70
80
90
100
110
120
10
750-5-10-15-20
Outdoor temp.(oC)
Capacity ratio(%)
Conditions
Indoor:DB20°C/WB15°C
Indoor air flow:Super High
Pipe length: 5m
Cooling Heating
Page 9
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Technical Information
Service Manual
2.4 Cooling and Heating Data Sheet in Rated Frequency
Rated cooling
condition(oC)
(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
frequency
(Hz)
Indoor Outdoor P (MPa) T1 (oC) T2 (oC)
27/19 35/24
ASH-18AIM2 PT 0.8 to 1.0 12 to 14 80 to 40 Super High High 70
ASH-24AIM2 PT 0.9 to 1.1 10 to 12 80 to 40 Super High High 83
Rated heating
condition(oC)
(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
frequency
(Hz)
Indoor Outdoor P (MPa) T1 (oC) T2 (oC)
20/15
7/6
ASH-18AIM2 PT 2.2 to 2.4 70 to 40 1 to 5 Super High High 70
ASH-24AIM2 PT
2.5 to 2.7 70 to 40 1 to 5 Super High High 75
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.
Cooling:
Heating:
2.5 Noise Curve
20
30
40
50
60
20 0406080 100
Outdoor side noise
Indoor side noise
Compressor frequency/Hz
) A ( B d / e s i o N
60
50
40
30
20
10
0
Indoor Fan Motor Rotating Speed
Noice/dB(A)
low
Middle
High Super High
ASH-18AIM2 PT ASH-24AIM2 PT ASH-18AIM2 PT ASH-24AIM2 PT
Page 10
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Technical Information
Service Manual
3. Outline Dimension Diagram
3.1 Indoor Unit
Unit:mm
Models W H D
ASH-18AIM2 PT 945 298 211
ASH-24AIM2 PT 1018 315 230
ASH-18AIM2 PT
ASH-124AIM2 PT
W
694
685 189
144
57
38
116
45
45
60
95
Φ55Φ55
Φ70 Φ70
194
D
H
Page 11
7
Technical Information
Service Manual
427
1000
920
610
370
790
395
3.2 Outdoor Unit
Unit:mm
Unit:mm
340
963
700
396
890
560
364
ASH-18AIM2 PT
ASH-24AIM2 PT
Page 12
8
Technical Information
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 CapillaryStrainer
Accumlator
Compressor
4. Refrigerant System Diagram
Connection pipe specication:
Liquid pipe:1/4" (6mm)
Gas pipe:1/2" (12mm)(ASH-18AIM2 PT)
Gas pipe:5/8" (16mm)(ASH-24AIM2 PT)
Page 13
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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.
ASH-18AIM2 PT
SENSORSENSOR
L(AC-L)
BK
PE
ROOMTUBE
M2
SWING-UD
ROOM TEMP.
RT2
AP2
BN
PG
YEGN
M1
BU
FAN MOTOR
OUTDOOR UNIT
2
3
XT
N(1)
TUBE TEMP.
RT1
SWING
MOTOR
COM-OUT
N
PGF
CAP
JUMP
DISP2DISP1
AP1
RECEIVER AND
DISPLAY BOARD
EVAPORATOR
TERMINAL
BLOCK
L
L
(SWING)
BU
BK
BN
YEGN
PRINTED CIRCUIT BOARD
HEALTH-L
BU RD
HEALTH-N
GENERATOR
COLD PLASMA
θ
θ
Page 14
10
Technical Information
Service Manual
ASH-24AIM2 PT
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©
©
These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit.
● Outdoor Unit
L2
50K15K20K
BN
WARNING
Please don't touch any terminal
when the voltage of terminal
P(DC+) and N(DC-) at AP1 is
higher than 30V to prevent the
risk of electric shock !
POWER
θ
θ
θ
COMP.
L1
WVU
PRINTED CIRCUIT BOARD
L1
PE
YEGN
FAN MOTOR
4WAY OFAN
VTVT
VALVE
4YV
4-WAY
M1
PE
MAGNETIC
PE
TERMINAL
BLOCK
YEGN
BU
BN
BU
BN
BK
RING
L1
INDOOR UNIT
XT1
BU
BK
BN
3
2
N(1)
L
N
PE
BU
YEGN
L
N
PE
YEGN
PE
COM_INNER
N1
AC_L
L3
L3
RING
MAGNETIC
L3
OVERLOAD PROTECTOR
T_SENSOR
YEGN
W(RD)V(YE)U(BU)
YEBU
RD
PE
PE
RT1 RT2 RT3
RD
OVC_COMP
WHWH
SAT
COMP
X1
YE
BU
WH
BK
TEMP.SENSOR
OUTTUBE
OUTROOM
TEMP.SENSOR
EXHAUST
TEMP.SENSOR
AP1
HEAT_B
EH
RD
BOTTOM
HEATER
BAND
RD
Page 15
11
Technical Information
Service Manual
5.2 PCB Printed Diagram
● Top view
Indoor Unit
● Bottom view
No. Name
1 Interface of live wire
2
Interface of live wire for
outdoor control
3 Fuse
4 Interface of neutral wire
5
Interface of neutral wire for
health function
6
Control interface of PG
motor
7
Interface of live wire for
health function
8
Interface of indoor
unit and outdoor unit
communication
9 Auto button
10 Up & down swing
11
Feedback interface of
indoor fan
12 Jump
13 Interface of display
14
Ambient temperature
sensor interface
15
Indoor tube temperature
sensor interface
1
2
3
4
5 6 7 8 9 10 11
12
13
1415
Page 16
12
Technical Information
Service Manual
● Top view
Outdoor Unit
● Bottom view
No. Name
1
Terminal of compressor
overload protection
2
Terminal of temperature
sensor
3
Terminal of electronic
expansion valve
4
Terminal of outdoor fan
5
Terminal of 4-way valve
6
Terminal of
compressorelectric heating
7
Terminal of chassis electric
heating
8
Terminal of indoor unit and
outdoor unit communication
9
Power supply live wire
10
Earthing wire
11
Power supply neutral wire
1 2 3 4 5 6
7
8
9
10
11
Page 17
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Technical Information
Service Manual
6. Function and Control
6.1 Remote Controller Introduction
1
1
2
5
4
6
7
8
11
12
13
9
14
15
ON/OFF button
- button
3
SWING button
FAN button
MODE button
I FEEL button
CLOCK button
10
TIMER-ON button
TIMER-OFF button
TURBO button
LIGHT button
16
X-FAN button
SLEEP button
TEMP button
button
/
+ button
/
F
C
HOUR
ONOFF
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
Send signal
Turbo mode
8
heating function
Set temperature
Set time
TIMER ON /
TIMER OFF
Child lock
Up & down swing
Set fan speed
ventilation operation
Light
Temp. display type
:Set temp.
:Outdoor ambient temp.
:Indoor ambient temp.
Sleep mode
Clock
Heat mode
Fan mode
Dry mode
Cool mode
Auto mode
Operation mode
I feel
X-fan mode
health function
Page 18
14
Technical Information
Service Manual
no display
Page 19
15
Technical Information
Service Manual
Page 20
16
Technical Information
Service Manual
battery
Cover of battery box
remove
reinstall
Page 21
17
Technical Information
Service Manual
6.2 Brief Description of Modes and Functions
Indoor Unit
1.Basic function of system
(1)Cooling mode
1.Under this mode, fan motor, swing will work under setting status, the temp. range is 16-30ºC(61-86 Fahrenheit scale)
2.Outdoor unit malfunction or unit stop running, indoor unit will keep original running status, malfunction displayed.
3.When0 (Tset-Tamb.), if indoor fan motor is high speed, that the fanmotorist running in middle speed, the middle speed or low speed
will be maintained;(this condition should be executed when compressor ressor statr up); the super high speed will not rotate; When
(Tamb-Tset) ≥1ºC , the fan will return to the setting fan speed.
(2)Dehumidifying mode
1.Under this mode, fan motor will run atlow speed,swing will work at setting status,setting temp. range is 16-30ºC(61-86 Fahrenheit
scale)
2.Outdoor unit malfunction or protection, unit will stop, indoor unit will keep original running status, malfunction displayed.
(3)Fan mode
Under this mode,indoor fan motor couldbe setted at high,middle,low or auto speed,compressor,outdoor unit and valve will stop to run.
Under this mode, temp. range should be 16-30ºC(61-86 Fahrenheit scale)
(4)Heating mode
1.Under this mode, temp. range should be 16-30ºC (61-86 Fahrenheit scale)
2.Working condition and procedure of heating mode: When unit turn on and enter into heating mode, indoor unit enter into anti-cool
wind mode, when unit is stop running, and indoor fan motor turns on, blowing heat will act.
3.Protection function, under heating mode, compressor will stop to run due to malfunction happened, indoor fan motor will blow surplus
heat.
4.Defrosting control: When receiving the defrost ing signal from outdoorunit, displayerwill Heating indicator on indoor display is off for 0.5s
and then on for 10s during blinking,10slater, indoor fan motor will stop to run.
5.Anti-coold wind function
6.Blow heat air function
a.If heating temp. meets the compressor stop running condition, compressors, outdoor fan motor will stop to run, the upper and lower
guide louver will rotate to horizontal position L, indoor fan motor run at setting fan speed for 60s, then the indoor fan motor will stop to
run.
b.Due to PG motor block running, the air guide board will keep the position when it stopping. (under each mode), other malfunction unit
will stop to run, the upper and lower air guide louver will rotate to horizontal position L, indoor fan unit will run at setting fan speed and
run for 60s, indoor fan unit will stop to run.
(5)Auto mode:
1.When Tamb.≥26 , select the cooling mode, at this time, the setting temp. is 25ºC (77 Fahrenheit scale)
2.Cooling and heating units: Tamb.≤22ºC , will run at heating mode, at this time, the setting temp. is 20 (68 Fahrenheit scale)
3. Cooling only unit: When Tamb.≤22ºC , it will run at Fan mode, the setting temp. is 25ºC (77 Fahrenheit scale)
4.When 23ºC ≤T
indoor amb.
≤ 25ºC ,rstly enter into auto mode and run at auto fan speed, other modes will run at auto mode, will keep the
previous running mode. (When entering into Dehumidifying mode, it will run at auto fan speed)
(6)Auto fan speed controlmode
2. Display state of indoor indicators
(1) State of indoor display board
1. When the unit is powered on, all patterns will be displayed and then only power indicator is on. When the unit is turned on with a
remote controller, the operating indicator is on and operation mode which is set currently is displayed.
2. In defrosting mode, heating indicator on indoor display is off for 0.5s and then on for 10s during blinking.
3. Set temperature is displayed on "Double 8".
Page 22
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Technical Information
Service Manual
●Display of operation patterns and mode patterns
When the unit is powered on, all patterns will be displayed and the standby operation indicator will become red. When the unit is turned on
through a remote controller, the operation indicator is light. At the same time, operating mode patterns (mode indicators include cooling,
heating and dehumidication modes) set currently are displayed, and dynamic display patterns of wind speed are displayed. If the light
button is switched off, all display will be turned off.
●Temperature display control mode of separated air conditioner
①
When user sets the remote controller at set temperature display, currently set temperature will be displayed.
②
Only when remote signals are converted from other display states into indoor ambient temperature display state, the remote controller
will display indoor ambient temperature for 3 seconds and then return to set temperature display.
③
Only when remote signals are converted from other display states into outdoor ambient temperature display state, the remote controller
will display outdoor ambient temperature for 3 seconds and then return to set temperature display.
④
If the controller is lack of outdoor display functions, as the signal is received, set temperature will be displayed.
⑤
When the unit is turned off, temperature display will be compulsively set at given temperature by the controller. When the unit is turned
on, patterns as set by remote signals will be displayed.
⑥
If user does not set up temperature display state, given temperature will be displayed.
(2) Failure display of indoor unit
1. Requirements for failure display
When multiple failures appear at the same time, failure protection codes shall be displayed alternatively.
①
Hardware failures shall be displayed immediately, refe rring to requirements in "Failure State Display Table";
②
Operation states shall be displayed immediately, referring to requirements in "Failure State Display Table";
③
Other failures shall be displayed 200s after the compressor stops, referring to requirements in "Failure State Display Table". (Note: in the
case that the unit is switched off with the remote controller, or the compressor is switched on again, failure display waiting time (200s) shall
be cleared.)
④
Frequency limitation and reduction states shall be displayed by means of remote calling.
2. Failure display control
Indicator failure display shall be kept synchronous with Double 8 failure display, that is, during indicator blinking, failure code corresponding
to such indicator shall be displayed on Double 8.
3. Method of remote calling of failure display
Entering the failure remote calling mode: push the light button six times within 3s to call out relevant failure protection code; Quit the failure
remote calling mode: push the light button six times within 3s or call out failure display to enter it for 5 minutes and then quit.
3. Other control targets
(1) Up and down wind blow functions
When the unit is powered on, the up and down wind blow motor will turn a wind deector anti-clockwise to Position 0 to shut down the
air outlet. When the unit is switched on and wind blow function is not preset, under the heating mode, up and down wind blades will turn
clockwise to position D; and under other modes, the up and down wind blades will turn clockwise to position L. If wind blow function is set
at the same time as the unit is switched on, the wind blades will swing between position L and D. The wind blades can be kept in seven
states: position L, position A, position B, position C, position D, swing between position L and D, stop at one position from L to D. When the
unit is turned off, the wind deector will be closed up to position 0. Wind blow action is effective only when wind blow commands are set
and the indoor unit is running.
Note: When the wind blades are set at position L to B, position A to C, or position B to D through
remote setting, the wind deector will swing between position L and D. L—A—B—C—D.
(2) Buzzer
When the controller is powered on, signals from a remote controller are received, or the auto button
is pushed, a buzzer will give out prompt tone.
(3) Auto button
When the button is pushed, the unit will operate in auto mode and the indoor fan will run in auto state. When the indoor fan is running, the
wind blow motor will work. When the button is pushed again, the unit will be switched off. At the same time as the button is pushed, the
whole unit will be powered on and enter into fast test mode; when the unit is powered on and detects for continuous 20s (such time shall
not be fast tested) that the auto button is pushed, and if the unit is currently at fast test state, the unit will quit the fast test state.
O(0°)
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(4) Sleep function
In this mode, the unit will automatically select appropriate sleep curve to operate according to different set temperature.
1. If sleep function is set in cooling, the system will increase set temperature automatically for operation in a certain degree.
2. If sleep function is set in heating mode, the system will decrease set temperature automatically for operation in a certain degree.
(5) Timing function
The main board integrates general timing and moment timing. Such two timing functions can be selected through a remote controller on
which different functions are arranged.
1. General timing:
Timing start: timing start can be set when the unit is off. When preset time is reached, the controller will operate in a preset mode. Timing
can be set at an interval of 0.5 hour in a scope of 0.5 - 24 hours. Timing stop: timing stop can be set when the unit is on. When preset time
is reached, the system will be turned off. Timing can be set at an interval of 0.5 hour in a scope of 0.5 - 24 hours.
2. Moment timing
Timing start: if timing start is set when the system is at operation state, the system will continue to operate; if timing start is set when
the system is at stop, as the preset time is reached, the system will start to run in preset mode. Timing stop: if timing stop is set when the
system is at stop state, the system will keep standby; if timing stop is set when the system is in operation, as the preset time is reached,
the system will stop running.
Timing change:
When the system is in timing mode, start and stop can be set through the On/Off button on the remote controller; or timing time can be
reset and the system will operate according to the latest setting. When the system is in operation and both timing start and stop are set, the
system will stay at currently set operation state. When preset timing stop time is reached, the system will stop working. When the system is
at stop state and both timing start and stop are set, the system will keep at stop state. When preset timing start time is reached, the system
will start operation. From then on, the system will operate in preset mode at a preset start time and stop at a preset stop time everyday. If
timing stop time is set as the same as timing start time, a stop command will be executed.
(6) Dry and mildew proof function
Dry and mildew proof function can be set in cooling and dehumidication modes.
(7) Control of indoor fan
Indoor fan can be set at four levels, super-high, high, middle and low, with a remote controller. When one level is set, the fan will thus
operate at such level. The fan can also be set at auto state.
(8) Power-failure memory function
What will be memorized includes modes, up and down wind blow, light, preset temperature, preset wind speed, general timing (no
memory for moment timing), and Fahrenheit /Celsius degree. When the unit is powered on again after power failure, operation continues
according to memorized content. If timing is not set by the last remote control command, the system will memorize the last remote control
command and operate in the mode specied in the last remote control command. If timing is set by the last remote control command and
power failure happens before the preset time, the system, as powered on again, will memorize the timing function set by the last remote
control command. Timing will be re-counted from the time at which the system is powered again. If timing is set by the last remote control
command and timing of start or stop is reached before power failure, the system, as powered on again, will memorize operation state
before power failure and will not perform timing action. Moment timing is out the range of memory.
(9) Locked Protection of PG Motor
When starting up the fans, if the motor has run at a lower speed continuously for a period, for preventing automatic protection of the motor,
stop running, and display the locked operation; if the machine is running at present, the code of the locked fault---H6 of double-eight digital
tubes will be displayed; if the machine is shut down at present, the information of the locked fault will not be displayed.
(10) Super Power Function
In cooling and heating modes (automatic, dehumidifying and air-supplying modes are without strong power), press the button of Super
Power, the wind speed on the remote controller is displayed as super-high air ow, and the inner fans are also turned to super-high air ow;
(11) Health Function
When the inner fans are running, the remote controller is set at the Health function at this time (if there is no Health button on the remote
controller, the Health On order is defaulted), then start the Health function device.
(12) Fault Detection of Thermo-bulb
1. Indoor Environment Thermo-bulb:
Detect the fault of thermo-bulb at any time;
2. Indoor Pipe Temperature Thermo-bulb:
During the defrosting period, the fault of the thermo-bulb will be not detected, which shall be detected in 5 minutes after defrosting is
completed; the fault of the thermo-bulb will be detected at other times;
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3. Protecting Treatments of Thermo-bulb:
When the thermobulb is detected to be short-circuited continuously for 5 seconds: It is regarded that the temperature detected by the
thermo-bulb is over-high (or unlimited), then the whole machine will exert corresponding safety stops according to the over-high temperature
sensed by the thermo-bulb, and display corresponding temperature safety stops and faults of the thermo-bulb simultaneously.
When the thermo-bulb is detected in open circuit continuously for 5 seconds: stop the machine in protection, directly display corresponding
faults of the thermo-bulb.
(13) Refrigerant recycling function (applicable when changing installation location or in maintenance)
1. Enter refrigerant recycling function
Within 5min after energizing (unit ON or OFF status is ok), continuously press LIGHT button for 3 times within 3s to enter refrigerant
recycling mode; Fo is displayed and refrigerant recycling function is started. At this moment, the maintenance people closes liquid valve.
After 5min, stick the thimble of maintenance valve with a tool. If there is no refrigerant spraying out, close the gas valve immediately and
then turn off the unit to remove the connection pipe.
2. Exit refrigerant recycling function
After entering refrigerant recycling mode, when receive any remote control signal or enter refrigerant recycling mode for 25min, the unit will
exit refrigerant recycling mode automatically If the unit is in standby mode before refrigerant recycling, it will be still in standby mode after
nishing refrigerant recycling; if the unit is in ON status before refrigerant recycling, it will still run in original operation mode.
(14) Compulsive Defrosting Function
1. Start up compulsory defrosting function
Under ON status, set heating mode with remote controller and adjust the temperature to 16℃. Press “+, -, +, -, +,-” button successively
within 5s and the complete unit will enter into compulsory defrosting status. Meanwhile, heating indicator on indoor unit will ON 10s and OFF
0.5s successively. (Note: If complete unit has malfunction or stops operation due to protection, compulsory defrosting function can be started
up after malfunction or protection is resumed.
2. Exit compulsory defrosting mode
After compulsory defrosting is started up, the complete unit will exit defrosting operation according to the actual defrosting result, and the
complete unit will resume normal heating operation.
Outdoor Units
1. Input Parameter Compensation and Calibration
(1) Check the ambient temperature compensation function Indoor ambient temperature compensation function.
a. In cooling mode, the indoor ambient temperature participating in computing control = (T
indoor ambient temperature
–⊿T
cooling indoor ambient temperature
compensation
)
b. In heating mode, the indoor ambient temperature participating in computing control= (T
indoor ambient temperature
–⊿T
heating indoor ambient temperature
compensation
)
(2) Check effective judgment controls of parameters
Effective judgment function of the outdoor exhaust temperature thermo-bulb When conditions a and b are satised, the outdoor exhaust
temperature thermo-bulb is judged not to be connected into place, the mainboard of outer units will display failure of the outdoor exhaust
temperature thermo-bulb (not connected into place), stop the machine for repairing, and resume the machine by remote controls of ON/OFF.
a. Judgment of exhaust detection temperature change:
After the compressor starts up and runs for 10 minutes, if the compressor frequency f ≥ 40Hz, and the rising value Texhaust (T
exhaust (after start-
up for 10 minutes)
- T
exhaust (before start-up)
) < 2ºC , the outdoor exhaust temperature thermo-bulb can be judged not to be connected into place (judging
once when the power is on the rst time).
b. Comparative judgment of exhaust detection temperature and condenser detection temperature (T
pipe temperature
= T
outdoor pipe temperature in cooling
mode
, T
pipe temperature
= T
indoor pipe temperature in heating mode
): After the compressor starts up and runs for 10 minutes, if the compressor frequency f ≥
40Hz, and T
pipe temperature
≥(T
exhaust+3
), the outdoor exhaust temperature thermobulb can be judged not to be connected into place (judging
once when power is on the rst time).
2. Basic Functions
(1) Cooling Mode
1. Conditions and processes of cooling operation:
(1) If the compressor is shut down, and [Tsetup – (T
indoor ambient temperature
– ⊿T
cooling indoor ambient temperature compensation)
] ≤ 0.5 , start up the machine
for cooling, the cooling operation will start;
(2) During operations of cooling, if 0ºC ≤ [Tsetup – (T
indoor ambient temperature
– ⊿T
cooling indoor ambient temperature compensation)
] < 2 , the cooling operation
will be still running;
(3) During operations of cooling, if 2ºC ≤ [Tsetup – (T
indoor ambient temperature
– ⊿T
cooling indoor ambient temperature compensation)
], the cooling operation will
stop after reaching the temperature point.
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2. Temperature setting range
(1) If T
outdoor ambient temperature
≥ [T
low-temperature cooling temperature
], the temperature can be set at: 16~30ºC (Cooling at room temperature);
(2) If T
outdoor ambient temperature
< [T
low-temperature cooling temperature
], the temperature can be set at: 25~30ºC (Cooling at low temperature), that is, the
minimum setting temperature for outer units judgment is 25ºC .
(2) Dehumidifying Mode
1. Conditions and processes of dehumidifying operations: Same as the cooling mode;
2. The temperature setting range is: 16~30ºC ;
(3) Air-supplying Mode
1. The compressor, outdoor fans and four-way valves are switched off;
2. The temperature setting range is: 16~30ºC.
(4) Heating Mode
1. Conditions and processes of heating operations: (Tindoor ambient temperature is the actual detection temperature of indoor environment
thermo-bulb, Theating indoor ambient temperature compensation is the indoor ambient temperature compensation during heating operations)
(1) If the compressor is shut down, and [(T
indoor ambient temperature
– ⊿T
heating indoor ambient temperature compensation
) –T
setup
] ≤ 0.5 , start the machine to enter
into heating operations for heating;
(2) During operations of heating, if 0ºC ≤ [(T
indoor ambient temperature
–⊿ T
heating indoor ambient temperature compensation
) –T
setup
] < 2 , the heating operation will
be still running;
(3) During operations of heating, if 2ºC ≤ [(T
indoor ambient temperature
– ⊿T
heating indoor ambient temperature compensation
) –T
setup
], the heating operation will stop
after reaching the temperature point.
2. The temperature setting range in this mode is: 16~30ºC .
3. Special Functions
Defrosting Control
①
Conditions for starting defrosting
After the time for defrosting is judged to be satised, if the temperature for defrosting is satised after detections for continuous 3minutes, the
defrosting operation will start.
②
Conditions of nishing defrosting
The defrosting operation can exit when any of the conditions below is satised:
③
T
outdoor pipe temperature
≥ (T
outdoor ambient temperature
– [T
temperature 1 of nishing defrosting
];
④
The continuous running time of defrosting reaches [tmax. defrosting time].
4. Control Logic
(1) Compressor Control
Start the compressor after starting cooling, heating, dehumidifying operations, and the outer fans start for 5s; When the machine is shutdown,
in safety stops and when switching to air-supplying mode, the compressor will stop immediately. In all modes: once the compressor starts up,
it will not be allowed to stop until having run for the [tmin. compressor running time] (Note: including cases of shutdown when the temperature
point is reached; except the cases requiring stopping the compressor such as fault protection, remote shutdown, mode switching etc.); In all
modes: once the compressor stops, it will be allowed be restart after 3-minute delay (Note: The indoor units have a function of power memory,
the machine can be restarted after remote shutdown and powering up again without delay).
1. Cooling mode
Start the machine to enter into cooling operation for cooling, the compressor is switched on.
2. Dehumidifying mode
Same as the cooling mode.
3. Air-supplying mode
The compressor is switched off.
4. Heating mode
(1) Start the machine to enter into heating operation for heating, the compressor is switched on.
(2) Defrosting:
a. Defrosting starts: the compressor is shut down, and restarts it after 55-second delay.
b. Defrosting ends: the compressor stops, then starts it after 55-second delay.
(2) Outer Fans Control
Notes:
Only the outer fans run for at least 80s in each air ow speed can the air ow be switched;
After the outer fans run compulsively in high speed for 80s when the machine starts up, control the air ow according to the logic.
After remote shutdown, safety stops, and when the machine stops after reaching the temperature point, as well as after the compressor stops,
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extend 1 minute, the outer fans will stop (During the period in the 1 minute, the air ow of outer fans can be changed according to the
outdoor ambient temperature changes); When running with force, the outdoor fans shall run in the highest air ow.
(3) 4-way valve control
1. The 4-way valve control under the modes of Cooling, dehumidication and supplying air: closing;
2. The status of 4-way valve control under the heating mode: getting power;
(1) 4-way valve power control under heating mode
a. Starts the machine under heating mode, the 4-way valve will get power immediately.
(2) 4-way valve power turn-off control under heating mode
a. When you should turn off the power or switch to other mode under heating mode, the power of 4-way valve will be cut after 2 minutes
of the compressor stopped.
b. When all kinds of protection stops, the power of 4-way valve will be cut after delaying 4 minutes.
(3) Defrosting control under heating mode:
a. Defrosting begins: The power of 4-way valve will be cut after 50s of entering into the defrosting
compressor.
b. Defrosting stops: The 4-way valve will get power after 50s of exiting the defrosting compressor.
(4) Evaporator frozen-preventing protection function
At the mode of Cooling, dehumidifying:
Evaporator frozen-preventing protection function is allowed to begin after 6 min of starting the compressor.
1. Starting estimation:
After the compressor stopped working for 180s, if T
inner pipe
> [T
frozen-preventing frequency-limited temperature
(the temperature of hysteresis is 2 )], the
machine is only allowed to start for operating, otherwise it should not be started, and should be stopped to treat according to the frozen-
preventing protection: Clear the trouble under the mode of power turn-off / heating, and the protection times are not counted.
2. Frequency limited
[T
frozen-preventing normal speed frequency-reducing temperature
] ≤[T
inner pipe T frozen-preventing frequency-limited temperature
] , you should limit the frequency raising of
compressor.
3. Reducing frequency at normal speed:
If [T
frozen-preventing high speed frequency-reducing temperature
] ≤[T
inner pipe T frozen-preventing normal speed frequency-reducing temperature
], you should adjust the compressor
frequency by reducing 8Hz/90s till the lower limit;
4. Reducing frequency at high speed:
If [T
frozen-preventing power turn-off temperature
] ≤T
inner pipe
[T
frozen-preventing high speed frequency-reducing temperature
] you should adjust the compressor frequency by
reducing 30Hz/90s till the lower limit;
5. Power turn-off:
If the T
inner pipe
<[T
frozen-preventing power turn-off temperature
], then frozen-preventing protect to stop the machine; If T[
frozen-preventing frequency-limited
temperature
] <T
inner pipe
, and the compressor has stopped working for 3 minutes, the whole machine should be allowed to operate.
6. If the frozen-preventing protection power turn-off continuously occurs for six times, it should not be resumed automatically, and you
should press the ON/OFF button to resume if the fault keeps on. During the process of running, if the running time of compressor exceeds
the t evaporator frozen-preventing protection times zero clearing time , the times of frozen-preventing power turn-off should be cleared to
recount. The mode of stopping the machine or transferring to supply air will clear the trouble times immediately (if the trouble can not be
resumed, mode transferring will not clear it).
(5) Overload protection function
Overload protection function at the mode of Cooling and dehumidifying
1. Starting estimation:
After the compressor stopped working for 180s, if T
outer pipe
<[T
Cooling overload frequency-limited temperature
] (the temperature of hysteresis is 2ºC ), the
machine is allowed to start, otherwise it should not be started, and should be stopped to treat according to the overload protection: Clear
the trouble at the mode of power turn-off / heating, and the protection times are not counted.
2. Frequency limited
If [T
Cooling overload frequency-limited temperature
] ≤[T
outer pipe T Cooling overload frequency reducing temperature at normal speed
], you should limit the frequency raising of
compressor.
3. Reducing frequency at normal speed and power turn-off:
If [T
Cooling overload frequency reducing temperature at high speed
] ≤T
outer pipe
< [T
Cooling overload power turn-off temperature
] , you should adjust the compressor
frequency by reducing 8Hz/90s till the lower limit; After it was running 90s at the lower limit, if [T
Cooling overload frequency reducing temperature at normal
speed
]≤T
outer pipe
, then Cooling overload protects machine stopping;
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4. Reducing frequency at high speed and stop machine:
If [T
Cooling overload frequency reducing temperature at high speed
]≤T
outer pipe
[T
Cooling overload power turn-off temperature
], you should adjust the compressor frequency
by reducing 30Hz/90s till the lower limit; After it was running 90s at the lower limit, if [T
Cooling overload frequency reducing temperature at normal speed
] ≤[T
outer pipe]
, then Cooling overload protects machine stopping;
5. Power turn-off:
If the [T
Cooling overload power turn-off temperature
] ≤T
outer pipe
, then Cooling overload protects machine stopping; If [T
outer pipe
]<[T
Cooling overload frequency-
limited temperature
]and the compressor has been stopped working for 3 minutes, the machine should be allowed to operate.
6. If the Cooling overload protection power turn-off continuously occurs for six times, it should not be resumed automatically, and you
should press the ON/OFF button to resume if the fault keeps on. During the process of running, if the running time of compressor
exceeds the t overload protection times zero clearing time , the times of overload protection power turn-off should be cleared to
recount. The mode of stopping the machine or transferring to supply air will clear the trouble times immediately (if the trouble can not be
resumed, transferring mode will not clear it).
Overload protection function at the mode of heating
Starting estimation :
After the compressor stopped working for 180s, if T inner pipe T heating overload frequency-limited temperature (the temperature of
hysteresis is 2 ), the machine is allowed to start, otherwise it should not be started, and should be stopped to treat according to the
overload protection:
Clear the trouble at the mode of power turn-off / heating, and the protection times are not counted.
1. Frequency limited
If [T
heating overload frequency-limited temperature
]≤T
inner pipe
<[T
heating overload frequency reducing temperature at normal speed
] , you should limit the frequency raising of
compressor.
2. Reducing frequency at normal speed and stopping machine:
If T[
heating overload frequency reducing temperature at normal speed
]≤T
inner pipe
<[T
heating overload frequency reducing temperature at high speed
], you should adjust the
compressor frequency by reducing 8Hz/90s till the lower limit; After it was running 90s at the lower limit, if T heating overload frequency
reducing temperature at normal speed ≤T inner pipe, then overload protects machine stopping;
3. Reducing frequency at high speed and power turn-off:
If [T
heating overload frequency reducing temperature at high speed
]≤T
inner pipe
<[T
heating overload power turn-off temperature
], you should adjust the compressor frequency
by reducing 30Hz/90s till the lower limit; After it was running 90s at the lower limit, if T heating overload frequency reducing temperature
at normal speed ≤T outer pipe, then Cooling overload protects machine stopping;
4. Power turn-off:
If the [T
heating overload power turn-off temperature
] ≤T
inner pipe
, then overload protects machine stopping; If T inner pipe T heating overload frequency-
limited temperature and the compressor has been stopped working for 3 minutes, the machine should be allowed to operate.
5. If the overload protection power turn-off continuously occurs for six times, it should not be resumed automatically, and you should
press the ON/OFF button to resume if the fault keeps on. During the process of running, if the running time of compressor exceeds the t
overload protection times zero clearing time , the times of overload protection power turn-off should be cleared to recount. The mode of
stopping the machine or transferring to supply air will clear the trouble times immediately (if the trouble can not be resumed, transferring
mode will not clear it). Protective function for discharge temperature of compressor
1. Starting estimation:
After the compressor stopped working for 180s, if T
Discharge
<T
Discharge limited temperature
(the temperature of hysteresis is 2ºC ), the machine
is allowed to start, otherwise it should not be started, and should be stopped to treat according to the discharge temperature:
The machine should be stopped or transferred to supply air, the trouble should be cleared immediately, and the protection times are not
counted.
2. Frequency limited
If [T
Limited frequency temperature during discharging
] ≤T
Discharge
<[T
frequency reducing temperature at normal speed during discharging
] , you should limit the frequency raising
of compressor.
3. Reducing frequency at normal speed and stopping machine:
If [T
frequency reducing temperature at normal speed during discharging
] ≤T
Discharge
<[T
frequency reducing temperature at high speed during discharging
], you should adjust the
compressor frequency by reducing 8Hz/90s till the lower limit; After it was running 90s at the lower limit, if [T
frequency reducing temperature at normal
speed during discharging
] ≤T
Discharge
, you should discharge to protect machine stopping;
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4. Reducing frequency at high speed and power turn-off:
If [T
frequency reducing temperature at high speed of module
]≤T
Module
<[T
Power turn-off temperature of module
] you should adjust the compressor frequency by reducing 30Hz/90s
till the lower limit; After it was running 90s at the lower limit, if [T
frequency reducing temperature at normal speed of module
] ≤T
Module
, you should stop the machine
for module overheating protection;
5. Power turn-off:
If the [T
Power turn-off temperature of module
] ≤T
Module
, you should stop the machine for module overheating protection; If T
Module
<[T
Limited frequency temperature of
module
] and the compressor has been stopped for 3 minutes, the machine should be allowed to operate.
6. If protection continuously occurs for six times, it should not be resumed automatically, and you should press the ON/OFF button to
resume. During the process of running, if the running time of compressor exceeds the [t
Protection times clearing of module
] , the discharge protection is
cleared to recount. Stopped or transferred to supply air mode will clear the trouble times immediately (if the trouble can not be resumed,
mode transferring also will not clear it).
(10)Compressor overloads protection
If you measure the compressor overload switch action in 3s, the compressor should be stopped for overloading. The machine should be
allowed to operate after overload protection was measured to resume. If the overloading protection continuously occurs for three times, it
should not be resumed automatically, and you should press the ON/OFF button to resume. The protection times of compressor is allowed
to clear after the compressor run [t
Protection times clearing of compressor overloading
] 30 minutes.
(11)Phase current overcurrent protection of compressor
During the running process of compressor, you could measure the phase current of the compressor, and control it according to the following
steps:
1. Frequency limited
If [I
Limited frequency phase current
] ≤[I
Phase current T frequency reducing phase current
] , you should limit the frequency raising of compressor.
2. Reducing Frequency
If [I
Frequency Reducing Phase Current
]≤I Phase Current<[I
Power Turn-Off Phase Current
], the compressor shall continue to reduce frequency till the lowest
frequency limit or out of the condition of reducing frequency;
3. Power turn-off
If [I
Phase Current
]≥[I
Power Turn-Off Phase Current
], the compressor phase current shall stop working for overcurrent protection; if [I
Phase Current
]≤[I
Frequency
Reducing Phase Current
], and the compressor have stopped working for 3 min, the machine shall be allowed to operate;
4. If the overcurrent protection of compressor phase current continuously occurs for six times, it should not be resumed automatically, and
you should press the ON/OFF button to resume. During the process of running, if the running time of compressor exceeds the [t
Clearing Time of
Compressor Phase Current Times
] , the overcurrent protection is cleared to recount.
(12) Starting-up Failure Protection for Compressor
Stop the compressor after its starting-up fails, restart it after 20s if the fault doesn’t shows, and if they are all failing for the successive start
3 times, it shall be reported as Starting-up Failure, and then restart up it after 3 min. When it still not be able to operate through carry out
the above process for 5 times, it is available if press ON/OFF. And the compressor should be cleared the times after it run 2 min.
(13) Out-of-Step Protection for Compressor
The out-of-step protection signal should be detected immediately after starting-up compressor, and once nd the out-of-step protection
signal, the out-of-step protection shall be stopped; if it can run for lasting power turn-off 3 min, the machine shall be allowed to operate. If
it still can’t run automatically when the out-of-step protection for compressor happens to stop working for 6 times in succession, it needs to
press ON/OFF to operate. And if the running time is more than 10 min, the power turn-off times for out-of-step protection shall be cleared
and recounted.
(14) Voltage Abnormity Protection for DC Bus
To detect voltage abnormity protection for dc bus after completing the pre-charge:
1.Over-High Voltage Protection for DC Bus:
If it found the DCbus voltage UDC >[UDC
Jiekuangchun Protection
], turn off PFC and stop the compressor at once, and it shall show the DC over-high
voltage failure; it should clear out the failure when the voltage dropped to UDC <[UDC
Jiekuangchun Recovery
] and the compressor stopped for 3 min.
2.Over-Low Voltage Protection for DC Bus:
If it found the DC bus voltage UDC <[U
DC Wantuochun Protection
], turn off PFC and stop the compressor at once, and it shall show the DC over-low
voltage; and it should clear out the failure when the voltage raised to UDC >[U
DC Wantuochun Recovery
] and the compressor stopped for 3 min.
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3.To detect voltage abnormity protect for DC bus when getting electricity:
If it found the DC bus voltage UDC >[U
DC——Over-High Voltage
], turn off the relay at once, and shows voltage abnormity failure for DC Bus. And the
failure can’t recover except to break off and get the electricity.
(15)Abnormity Protection for Four-way Valve
Under the model of heating operation in good condition: the compressor is detected [T
Inner Tube
<(T
Inner Ring-T Abnormity Temperature Difference For Four-Way Valve
Reversion
)], during the running, it should be regarded as four-way valve reversion abnormity. And then it can run if stop the reversion abnormity
protection for four-way valve 3 min; and if it still can’t run when the reversion abnormity protection for four-way valve happens to stop
working for 3 times in succession, it is available if presses ON/OFF.
Attention: the protection shall be shielded during the testing mode and defrosting process, and it shall be cleared out the failure and its
times immediately when turning off or delivering wind / cooling / dehumidifying mode conversed (the inverted mode don’t clear out the
failure when it can’t recover to operate).
(16) PFC Protection
1. After start up the PFC, it should detect the protection signal of PFC immediately; under the condition of PFC protection, it should turn off
the PFC and compressor at one time;
2. It shows the failure is cleared out if PFC Protection stopped working 3 min and recovers to run automatically;
3. If it still can’t run when it occurs PFC protection for 3 times in succession, it is available if presses ON/OFF; and clear the PFC Protection
times when start up PFC for 10min.
(17) Failure Detection for Sensor
1. Outdoor Ambient Sensor: detect the failure of sensor at all times.
2. Outdoor Tube Sensor: You should not detect the failure of outdoor tube sensor within 10 minutes heating
operation compressor except the defrosting, and you could detect it at other time.
3. Outdoor Exhaust Sensor:
(a) The compressor only detect the sensor failure after it start up 3 min in normal mode;
(b) It should detect the exhaust sensor failure immediately in the testing mode.
4. Module Temperature Sensor:
(a) Short-Circuit Detection: the compressor should be detected immediately when the module temperature
sensor occurs short-circuits;
(b) Open-Circuit Detection: the compressor should be detected on open-circuit when it runs 3min (it needn’t 30s
avoiding the module over-heated).
(c) Detect the sensor failure at all times in the testing mode.
5. Disposal for Sensor Protection
(1) When the short-circuit of sensor is detected within 30s, It is regarded as the temperature of sensor over-high (or innitely high), and now
according to the over-high sensor, the machine should carry out the corresponding protection to stop working, and show the corresponding
temperature shutdown protection and sensor failure at the same time (for example: the compressor stops immediately when the outdoor
tube sensor short-circuit, and the machine shall show the overload protection and outdoor tube sensor failure).
(2) When the open-circuit of sensor is detected within 30s, The protection shall be stopped and it shall show the corresponding sensor
failure.
6. Electric Heating Function of Chassis
(1) When T
outdoor amb.
≤0ºC , the electric heating of chassis will operate;
(2) When T
outdoor amb.
>2ºC , the electric heating of chassis will stop operation;
(3)When 0ºC <T
outdoor amb.
≤2ºC , the electric heating of chassis will keep original status.
7. Electric Heating Function of Compressor
(1) When T
outdoor amb.
≤-5ºC , compressor stops operation, while the electric heating of compressor starts operation;
(2) When T
outdoor amb.
>-2ºC , the electric heating of compressor stops operation;
(3) When -5ºC <
Toutdoor amb.
≤-2ºC , the electric heating of compressor will keep original status.
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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 can’t 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 can’t be
pressed by hard objects.
9. If power cord or connection wire is broken, it must be
replaced by a qualied person.
1. Avoid contact between refrigerant and re as it generates
poisonous gas; Prohibit prolong the connection pipe by
welding.
2. Apply specied refrigerant only. Never have it mixed with
any other refrigerant. Never have air remain in the refrigerant
line as it may lead to rupture or other hazards.
3. Make sure no refrigerant gas is leaking out when
installation is completed.
4. If there is refrigerant leakage, please take sufficient
measure to minimize the density of refrigerant.
5. Never touch the refrigerant piping or compressor without
wearing glove to avoid scald or frostbite.
Warnings
Refrigerant Safety Precautions:
Improper installation may lead to re hazard, explosion,
electric shock or injury.
Installation Safety Precautions:
Part
Ⅱ
: Installation and Maintenance
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; don’t 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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Main Tools for Installation and Maintenance
1. Level meter, measuring tape
4. Electroprobe
7. Electronic leakage detector
10. Pipe pliers, pipe cutter
2. Screw driver
5. Universal meter
8. Vacuum pump
11. Pipe expander, pipe bender
3. Impact drill, drill head, electric drill
6. Torque wrench, open-end wrench, inner
hexagon spanner
9. Pressure meter
12. Soldering appliance, refrigerant container
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8. Installation
8.1 Installation Dimension Diagram
Space to the ceiling
Space to the wall
At least 15cm
At least 15cm
At least 15cm
At least 250cm
Space to the wall
Space to the obstruction
roolf eht ot ecapS
Space to the obstruction
Drainage pipe
Space to the wall
Space to the obstruction
Space to the obstructio
Space to the obstruction
At least 300cm
At least 50cm
At least 200cm
At least 30cm
At least 30cm
At least 50cm
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Preparation before installation
Prepare tools
Read the requirements
for electric connection
select installation
location
Select indoor unit
installation location
Install wall-mounting
frame, drill wall holes
Connect pipes of indoor
unit and drainage pipe
Connect wires of indoor unit
Connect wires of outdoor unit
Bind up pipes and
hang the indoor unit
Make the bound pipes pass
through the wall hole and then
connect outdoor unit
Neaten the pipes
Vacuum pumping and leakage detection
Check after installation and test operation
Finish installation
Note: this flow is only for reference; please find the more detailed installation steps in this section
.
Select outdoor unit
installation location
Install the support of outdoor unit
(select it according to the actual situation)
Install drainage joint of outdoor unit
(only for cooling and heating unit)
Connect pipes of outdoor unit
Start installation
Fix outdoor unit
Installation procedures
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No. Name No. Name
1 Indoor unit 8 Sealing gum
2 Outdoor unit 9 Wrapping tape
3 Connection pipe 10
Support of outdoor
unit
4 Drainage pipe 11 Fixing screw
5
Wall-mounting
frame
12
Drainage plug(cooling
and heating unit)
6
Connecting
cable(power cord)
13
Owner’s manual,
remote controller
7 Wall pipe
1. Safety Precaution
(1) Must follow the electric safety regulations when installing
the unit.
(2) According to the local safety regulations, use qualified
power supply circuit and air switch.
(3) Make sure the power supply matches with the requirement
of air conditioner. Unstable power supply or incorrect wiring
may result in electric shock,re hazard or malfunction. Please
install proper power supply cables before using the air
conditioner.
(4) Properly connect the live wire, neutral wire and grounding
wire of power socket.
(5) Be sure to cut off the power supply before proceeding any
work related to electricity and safety.
(6) Do not put through the power before nishing installation.
(7) For appliances with type Y attachment,the instructions
shall contain the substance of thefollowing.If the supply cord is
damaged,it must be replaced by the manufacturer,its service
agent or similarly qualied persons in order to avoid a hazard.
(8) The temperature of refrigerant circuit will be high, please
keep the interconnection cable away from the copper tube.
8.2 Installation Parts-checking
8.3 Selection of Installation Location
8.4 Electric Connection Requirement
8.5 Installation of Indoor Unit
Air-conditioner Air switch capacity
ASH-18AIM2 PT
ASH-24AIM2 PT
16A
1.Please contact the local agent for installation.
2.Don't use unqualied power cord.
1. Basic Requirement:
Installing the unit in the following places may cause
malfunction. If it is unavoidable, please consult the local dealer:
(1) The place with strong heat sources, vapors, ammable or
explosive gas, or volatile objects spread in the air.
(2) The place with high-frequency devices (such as welding
machine, medical equipment).
(3) The place near coast area.
(4) The place with oil or fumes in the air.
(5) The place with sulfureted gas.
(6) Other places with special circumstances.
2. Grounding Requirement:
(1) The air conditioner is rst class electric appliance. It must
be properly grounding with specialized grounding device
by a professional. Please make sure it is always grounded
effectively, otherwise it may cause electric shock.
(2) The yellow-green wire in air conditioner is grounding wire,
which can't be used for other purposes.
(3) The grounding resistance should comply with national
electric safety regulations.
(4) The appliance must be positioned so that the plug is
accessible.
(5) An all-pole disconnection switch having a contact separation
of at least 3mm in all poles should be connected in xed wiring.
(6) Including an air switch with suitable capacity, please note
the following table. Air switch should be included magnet
buckle and heating buckle function, it can protect the circuitshort and overload. (Caution: please do not use the fuse only
for protect the circuit)
1. Choosing Installation Iocation
Recommend the installation location to the client and then
conrm it with the client.
2. Install Wall-mounting Frame
(1) Hang the wall-mounting frame on the wall; adjust it in
horizontal position with the level meter and then point out the
screw xing holes on the wall.
(2) Drill the screw xing holes on the wall with impact drill (the
specification of drill head should be the same as the plastic
expansion particle) and then ll the plastic expansion particles
2. Indoor Unit:
(1) There should be no obstruction near air inlet and air outlet.
(2) Select a location where the condensation water can be
dispersed easily and won't affect other people.
(3) Select a location which is convenient to connect the
outdoor unit and near the power socket.
(4) Select a location which is out of reach for children.
(5) The location should be able to withstand the weight of
indoor unit and won't increase noise and vibration.
(6) The appliance must be installed 2.5m above oor.
(7) Don't install the indoor unit right above the electric
appliance.
(8) The appliance shall not be installed in the laundry.
3. Outdoor Unit:
(1) Select a location where the noise and outow air emitted by
the outdoor unit will not affect neighborhood.
(2) The location should be well ventilated and dry, in which the
outdoor unit won't be exposed directly to sunlight or strong
wind.
(3) The location should be able to withstand the weight of
outdoor unit.
(4) Make sure that the installation follows the requirement of
installation dimension diagram.
(5) Select a location which is out of reach for children and far
away from animals or plants.If it is unavoidable, please add
fence for safety purpose.
Note:
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Outlet
pipe
Drain hose
Drain hose
Tape
Outlet pipe
Insulating pip
e
Torque wrenc
h
Open-end
wrench
Indoor pipe
Pipe
Union nut
Union nutPipe joint
Pipe
Hex nut diameter(mm) Tightening torque(N
.
m)
Φ6 15~20
Φ9.52 30~40
Φ12 45~55
Φ16 60~65
Φ19 70~75
Refer to the following table for wrench moment of force
:
Left
Rear left
Right
Rear right
Cut off
the hole
Left Right
Drain hose
Insulating pip
e
5-10
°
Φ55mm or Φ70m
m
Indoor
Outdoor
(1) Pay attention to dust prevention and take relevant safety
measures when opening the hole.
(2) The plastic expansion particles are not provided and should
be bought locally.
(1) Add insulating pipe in the indoor drain hose in order to
prevent condensation.
(2) The plastic expansion particles are not provided.
(As show in Fig.10)
Fig.1
Fig.2
Fig.5 Fig.6
Fig.7
Fig.8
Fig.9
Fig.10
Fig.3
Fig.4
in the holes.
(3) Fix the wall-mounting frame on the wall with tapping screws
(ST4.2X25TA) and then check if the frame is rmly installed by
pulling the frame. If the plastic expansion particle is loose,
please drill another xing hole nearby.
3. Install Wall-mounting Frame
(1) Choose the position of piping hole according to the direction
of outlet pipe. The position of piping hole should be a little
lower than the wall-mounted frame.(As show in Fig.1)
5. Connect the Pipe of Indoor Unit
(1) Aim the pipe joint at the corresponding bellmouth.(As show
in Fig.5)
(2) Pretightening the union nut with hand.
(3) Adjust the torque force by referring to the following sheet.
Place the open-end wrench on the pipe joint and place the
torque wrench on the union nut. Tighten the union nut with
torque wrench.(As show in Fig.6)
(4) Wrap the indoor pipe and joint of connection pipe with
insulating pipe, and then wrap it with tape.(As show in Fig.7)
6. Install Drain Hose
(1) Connect the drain hose to the outlet pipe of indoor unit.(As
show in Fig.8)
(2) Bind the joint with tape.(As show in Fig.9)
4. Outlet Pipe
(1) The pipe can be led out in the direction of right, rear right,
left or rear left.(As show in Fig.3)
(2) When selecting leading out the pipe from left or right, please
cut off the corresponding hole on the bottom case.(As show in
Fig.4)
(2) Open a piping hole with the diameter of Φ55mm or Φ70mm
on the selected outlet pipe position.In order to drain smoothly,
slant the piping hole on the wall slightly downward to the
outdoor side with the gradient of 5-10°.(As show in Fig.2)
Note:
Note:
Left
Wall
Φ55/70mm
Φ55/70mm
Right
Mark in the middle of it
Level meter
Rear piping hole
Wall
Space
to the
wall
above
150mm
Space
to the
wall
above
150mm
Rear piping hole
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(4) Put wiring cover back and then tighten the screw.
(5) Close the panel.
Indoor unit
Gas
pipe
Indoor and
outdoor power cord
Liquid
pipe
Drain hose
Band
Drain hose
Band
Connection pipe
Indoor power cord
(1) All wires of indoor unit and outdoor unit should be
connected by a professional.
(2) If the length of power connection wire is insufcient, please
contact the supplier for a new one. Avoid extending the wire by
yourself.
(3) For the air conditioner with plug, the plug should be
reachable after nishing installation.
(4) For the air conditioner without plug, an air switch must be
installed in the line. The air switch should be all-pole parting
and the contact parting distance should be more than 3mm.
(1) The power cord and control wire can't be crossed or
winding.
(2) The drain hose should be bound at the bottom.
Do not bend the drain hose too excessively in order to prevent
blocking.
7. Connect Wire of Indoor Unit
(1) Open the panel, remove the screw on the wiring cover and
then take down the cover.(As show in Fig.11)
8. Bind up Pipe
(1) Bind up the connection pipe, power cord and drain hose
with the band.(As show in Fig.14)
(2) Reserve a certain length of drain hose and power cord
for installation when binding them. When binding to a certain
degree, separate the indoor power and then separate the drain
hose.(As show in Fig.15)
(3) Bind them evenly.
(4) The liquid pipe and gas pipe should be bound separately at
the end.
9. Hang the Indoor Unit
(1) Put the bound pipes in the wall pipe and then make them
pass through the wall hole.
(2) Hang the indoor unit on the wall-mounting frame.
(3) Stuff the gap between pipes and wall hole with sealing gum.
(4) Fix the wall pipe. (As show in Fig.16)
(5) Check if the indoor unit is installed rmly and closed to the
wall.(As show in Fig.17)
(2) Make the power connection wire go through the cable-cross
hole at the back of indoor unit and then pull it out from the front
side.(As show in Fig.12)
(3) Remove the wire clip; connect the power connection wire
to the wiring terminal according to the color; tighten the screw
and then x the power connection wire with wire clip.(As show
in Fig.13)
Note:
Note:
Note:
Indoor
Outdoor
Wall pipe
Sealing gum
Upper hook
Lower hook of
wall-mounting frame
Fig.11
Fig.12
Fig.13
Fig.14
Fig.15
Fig.16
Fig.17
Power connection
wire
Cable-cross
hole
blue black brown yellow-
green
Connect to outdoor unit
2
3
Note: The wiring connect is for reference only,
please refer to the actual one.
blue black brown yellow-
green
Connect to outdoor unit
2
3
Wiring cover
Screw
Panel
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Note: the wiring connect is for reference only,
please refer to the actual one.
Handle
Connect to indoor unit
23L
L
N
NN(1)
POWER
blue
blue
black
brown brown
yellowgreen
yellowgreen
(1) Take sufficient protective measures when installing the
outdoor unit.
(2) Make sure the support can withstand at least four times the
unit weight.
(3) The outdoor unit should be installed at least 3cm above the
oor in order to install drain joint.(As show in Fig.18)
(4) For the unit with cooling capacity of 2300W~5000W, 6
expansion screws are needed; for the unit with cooling capacity
of 6000W~8000W, 8 expansion screws are needed; for the
unit with cooling capacity of 10000W~16000W, 10 expansion
screws are needed.
(1) After tightening the screw, pull the power cord slightly to
check if it is rm.
(2) Never cut the power connection wire to prolong or shorten
the distance.
(1) The through-wall height of drain hose shouldn't be higher
than the outlet pipe hole of indoor unit.(As show in Fig.25)
(2) Slant the drain hose slightly downwards. The drain hose
can't be curved, raised and uctuant, etc.(As show in Fig.26)
Note:
Note:
Note:
The drain hos
can't raise
upwards
gas pipe
Liquid pipe
Liquid
valve
gas valve
Union nut
Pipe joint
Foot holes
Foot holes
Chassis
Outdoor drain join
t
Drain hose
Drain ven
t
8.6 Installation of Outdoor Unit
1. Fix the support of outdoor unit(select it according to the
actual installation situation)
(1) Select installation location according to the house structure.
(2) Fix the support of outdoor unit on the selected location with
expansion screws.
5. Connect Outdoor Electric Wire
(1) Remove the wire clip; connect the power connection wire
and power cord to the wiring terminal according to the color; x
them with screws.(As show in Fig.23)
6. Neaten the Pipes
(1) The pipes should be placed along the wall, bent reasonably
and hidden possibly. Min. semidiameter of bending the pipe is
10cm.
(2) If the outdoor unit is higher than the wall hole, you must set
a U-shaped curve in the pipe before pipe goes into the room,
in order to prevent rain from getting into the room.(As show in
Fig.24)
(2) Fix the power connection wire with wire clip.
2. Install Drain Joint(Only for cooling and heating unit)
(1) Connect the outdoor drain joint into the hole on the chassis.
(2) Connect the drain hose into the drain vent.
(As show in Fig.19)
3. Fix Outdoor Unit
(1) Place the outdoor unit on the support.
(2) Fix the foot holes of outdoor unit with bolts.
(As show in Fig.20)
4. Connect Indoor and Outdoor Pipes
(1) Remove the screw on the right handle and valve cover of
outdoor unit and then remove the handleand valve cover.(As
show in Fig.21)
(2) Remove the screw cap of valve and aim the pipe joint at the
bellmouth of pipe.(As show in Fig.22)
(3) Pretightening the union nut with hand.
(4) Tighten the union nut with torque wrench .
Hex nut diameter(mm) Tightening torque(N
.
m)
Φ6 15~20
Φ9.52 30~40
Φ12 45~55
Φ16 60~65
Φ19 70~75
Refer to the following table for wrench moment of force
:
Fig.18 Fig.19
Fig.20
Fig.21
Fig.22
Fig.23
Fig.24
Fig.25
A
t least 3cm above the floo
r
U-shaped curve
Wall
Drain hose
Valve cover
Handle
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(3) The water outlet can't be placed in water in order to drain
smoothly.(As show in Fig.27)
Liquid valve
Gas valve
Refrigerant charging
vent
Nut of refrigerant
Charging vent
Vacuum pump
Piezometer
Valve cap
Lo Hi
Inner hexagon
spanner
Open
Close
The drain hose can't be fluctuant
The drain hose
can't be fluctuant
The water
outlet can't be
fluctuant
NO. Items to be checked Possible malfunction
1
Has the unit been
installed rmly?
The unit may drop, shake or
emit noise.
2
Have you done the
refrigerant leakage test?
It may cause insufcient cooling
(heating) capacity.
3
Is heat insulation of
pipeline sufcient?
It may cause condensation and
water dripping.
4 Is water drained well?
It may cause condensation and
water dripping.
5
Is the voltage of power
supply according to the
voltage marked on the
nameplate?
It may cause malfunction or
damage the parts.
6
Is electric wiring and
pipeline installed
correctly?
It may cause malfunction or
damage the parts.
7
Is the unit grounded
securely?
It may cause electric leakage.
8
Does the power cord
follow the specication?
It may cause malfunction or
damage the parts.
9
Is there any obstruction
in air inlet and air outlet?
It may cause insufcient cooling
(heating).
10
The dust and
sundries caused
during installation are
removed?
It may cause malfunction or
damaging the parts.
11
The gas valve and liquid
valve of connection pipe
are open completely?
It may cause insufcient cooling
(heating) capacity.
The water outlet
can't be placed
in water
1. Use Vacuum Pump
(1) Remove the valve caps on the liquid valve and gas valve
and the nut of refrigerant charging vent.
(2) Connect the charging hose of piezometer to the refrigerant
charging vent of gas valve and then connect the other charging
hose to the vacuum pump.
(3) Open the piezometer completely and operate for 10-15min
to check if the pressure of piezometer remains in -0.1MPa.
(4) Close the vacuum pump and maintain this status for 1-2min
to check if the pressure of piezometer remains in -0.1MPa. If
the pressure decreases, there may be leakage.
(5) Remove the piezometer, open the valve core of liquid valve
and gas valve completely with inner hexagon spanner.
(6) Tighten the screw caps of valves and refrigerant charging
vent. (As show in Fig.28)
1. Check after Installation
Check according to the following requirement after finishing
installation.
2. Test Operation
(1) Preparation of test operation
● The client approves the air conditioner installation.
● Specify the important notes for air conditioner to the client.
(2) Method of test operation
● Put through the power, press ON/OFF button on the remote
controller to start operation.
● Press MODE button to select AUTO, COOL, DRY, FAN and
HEAT to check whether the operation is normal or not.
● If the ambient temperature is lower than 16℃, the air
conditioner can’t start cooling.
2. Leakage Detection
(1) With leakage detector:
Check if there is leakage with leakage detector.
(2) With soap water:
If leakage detector is not available, please use soap water for
leakage detection. Apply soap water at the suspected position
and keep the soap water for more than 3min. If there are air
bubbles coming out of this position, there's a leakage.
8.7 Vacuum Pumping and Leak
Detection
8.8 Check after Installation and Test
Operation
Fig.26
Fig.27
Fig.28
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9. Maintenance
9.1 Malfunction Display of Indoor Unit
1. Malfunction display requirement
When there are several malfunctions, they will be displayed circularly.
2. Malfunction display method
(1) Hardware malfunction: immediate display; refer to “malfunction display table”;
(2) Operation state: immediate display; refer to “malfunction display table”;
(3) Other malfunctions: it is displayed after the compressor stops for 200s; refer to “malfunction display table”.
Note: when the compressor is restarted, the malfunction display delay time (200s) is cleared.
(4) When the unit is under limit frequency or frequency drop state, the display can be controlled via remote controller.
3. Display control via remote controller
Enter display control: press light button successively for 6 times within 3s to display the corresponding malfunction code;
Exit display control: pressing light button successively for 6 times within 3s or after display is shown for 5min, the display will terminate.
4. Display under test state
Dual 8 nixie tube display: minimum cooling (heating)-P0; middle cooling (heating)-P3
Nominal cooling (heating) –P1; maximum cooling (heating) –P2;
Malfunction Name Dual-8 Nixie Tube
Malfunction of jumper cap C5
No feedback from indoor unit's motor H6
Circuit malfunction of zero crossing detection U8
Indoor ambient temperature sensor is open/short-circuited F1
Indoor evaporator temperature sensor is open/short-circuited F2
Module temperature sensor is open/short-circuited P7
Outdoor ambient temperature sensor is open/short-circuited F3
Outdoor condenser tube temperature sensor is open/short-circuited F4
Outdoor discharge temperature sensor is open/short-circuited F5
Communication malfunction between indoor and outdoor units E6
Malfunction of phase current circuit detection for compressor U1
Module temperature protection P8
Charging malfunction of capacitor PU
Overload protection of compressor H3
Freon recovery mode Fo
Failure start-up of compressor LC
Discharge high-temperature protection of compressor E4
Overload protection E8
Overcurrent protection of the complete unit E5
Overcurrent protection of phase current P5
Desynchronizing of compressor H7
Module current protection (IPM protection) H5
Low voltage protection of DC bus bar PL
High voltage protection of DC bus bar PH
PFC protection HC
Limit/decrease frequency due to current protection of the complete unit F8
Limit/decrease frequency due to module current protection (phase current) En
Limit/decrease frequency due to discharge F9
Limit/decrease frequency due to freeze protection FH
Limit/decrease frequency due to overload F6
Limit/decrease frequency due to module temperature protection EU
Cold air prevention protection E9
Freeze protection E2
Malfunction of ODU DC fan L3
Note: Please refer to service manual for the troubleshooting procedure for outdoor unit.
●Error Code List
Page 40
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Installation and Maintenance
Service Manual
●Discharging method
(1) remove the inverter cover(Outdoor Unit)
(2)As shown below,connect the discharge resistance(approx.100Ω20W)or plug of the sold ering iron to voltage between + - terminals of
the electrolytic capacitor on PC Board for 30s, and then peformedischarging.
NOTE:
A large-capacity electrolytic capacitor is used in the outdoor unit controller(inverter).Therefore,if the power supply is turned
off,charge(charging voltage DC280V to 380V)remains and disc harging takes a lot of time.. After turning off the power source,if touching
the charging section before discharging, an electrical shock may be caused. Discharge the electrol ytic capacitor completely by using
soldering iron,etc.
P.C.board
(Soldered surface)
Inverter cover
Page 41
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Installation and Maintenance
Service Manual
Indoot Unit
9.2 Procedure of Troubleshooting
(1) Malfunction of Temperature Sensor F1, F2
Main detection points:
● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted?
● Is there short circuit due to trip-over of the parts?
● Is the temperature sensor broken?
● Is mainboard broken?
Malfunction diagnosis process:
Is the wiring terminal between the
temperature sensor and the controller
loosened or poorly contacted?
Start
Insert the temperature
sensor tightly
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Is malfunction
eliminated
Is malfunction
eliminated
Is malfunction
eliminated
Replace it with a
temperature sensor with
the same model
Make the parts upright
Is there short circuit due to trip-
over of the parts
Is the temperature sensor normal
according to the resistance table?
Replace the mainboard with
the same model.
End
Page 42
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Installation and Maintenance
Service Manual
(2) Malfunction of Blocked Protection of IDU Fan Motor H6
Main detection points:
● SmoothlyIs the control terminal of PG motor connected tightly?
● SmoothlyIs the feedback interface of PG motor connected tightly?
● The fan motor can't operate?
● The motor is broken?
● Detectioncircuit of the mainboard is dened abnormal?
Malfunction diagnosis process:
Start
While power is off stir the blade
with a tool to see whether the
blade rotates smoothly
Check if the connection of PG
motor feedback terminal is rm
Check if the connection of PG
motor control terminal is rm
Turn on the unit again; measure
whether the output voltage on
control terminal for PG motor is
more than 50V within 1 min after
the louvers are opened
Tighten the screw; reassemble the blade, motor
and shaft bearing rubber base sub-assy to make
sure there is no foreign object between them
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
Is malfunction
eliminated
Is malfunction
eliminated
Is malfunction
eliminated
Is malfunction
eliminated
Is the motor started up
Replace PG motor
Replace the mainboard
with the same model
Measure the voltage of this foot to
neutral wire on the mainboard
End
Reinstall the blade
and motor correctly
Insert the control terminal
of PG motor tightly
Page 43
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Installation and Maintenance
Service Manual
(3) Malfunction of Protection of Jumper Cap C5
Main detection points:
● Is there jumper cap on the mainboard?
● Is the jumper cap inserted correctly and tightly?
● The jumper is broken?
● The motor is broken?
● Detection circuit of the mainboard is dened abnormal?
Malfunction diagnosis process:
Start
Is there jumper cap on the mainboard?
Is the jumper cap inserted correctly
and tightly?
Replace the jumper cap with
the same model
Appearance of the
jumper cap
Assemble the jumper
cap with the same model
Insert the jumper
cap tightly
Is malfunction
eliminated
Is malfunction
eliminated
Is malfunction
eliminated
Replace the mainboard
with the same model
End
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Page 44
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Installation and Maintenance
Service Manual
(4) Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8
Main detection points:
● Instant energization afte de-energization while the capacitordischarges slowly?
● The zero-cross detectioncircuit of the mainboard is dened abnormal?
Malfunction diagnosis process:
Turn power off for
1minute,the turn
back on
The unit returns to normal.
Conclusion:U8 is displayed due to
power off/on while the
capacitor discharges slowly.
U8 is still
displayed
The zero-cross detection circuit
of the mainboard is dened
abnormal.Replace the mainboard
with the same model
Yes
No
Start
End
Page 45
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Installation and Maintenance
Service Manual
(5)
Communication malfunction (E6)
Disconnect power and check if
the connection wire of indoor
and outdoor units and the
built-in wire of electric box are
correctly connected.
Correct connection?
Connect the wire
properly according
to the wiring
diagram.
Is malfunction
eliminated?
Is malfunction
eliminated?
Is malfunction
eliminated?
Is malfunction
eliminated?
Main board matches with display
board? Main board of IDU
matches with that of ODU?
Match correctly
according to
product
specification.
Connection of communication
wire is damaged or not?
Replace the
connection wire.
Replace the main
board of IDU.
Replace the main
board of ODU.
End
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes Yes
Ye
s
Yes
Troubleshooting for E6
malfunction
Page 46
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Installation and Maintenance
Service Manual
(1)
Malfunction of Desynchronizing of Compressor (H7)
Main check point:
Whether the system pressure is too high?
Whether the electronic expansion valve can work normally?
Whether the radiation for the unit is in good condition?
Check ow chart:
Outdoot Unit
Desynchronizing malfunction
occurs after de-energizing
and turning on the unit
Whether stop time for
compressor is more than 3min?
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Whether valve of outdoor unit is
opened?
Whether wire connection for
compressor is correct?
Open the valve
Is malfunction eliminated?
Connect wire correctly
Is malfunction eliminated?
Replace electronic
expansion valve
Is malfunction eliminated?
End
Replace compressor
Is malfunction eliminated?
Replace main board of
outdoor unit
Whether electronic expansion
valve is damaged?
Page 47
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Installation and Maintenance
Service Manual
Desynchronizing malfunction
occurs during operation process
Check whether
the fan terminal is
connected well
Replace fan capacitor
Replace outdoor fan
Improve the radiation
circumstances for the
unit (such as clean heat
exchanger, improve
ventilation, etc)
Turn on the unit again
after the power voltage
is resumed
Charge refrigerant
according to service
manual
Whether the outdoor fan can
operate normally?
Whether the radiation for the
unit is in good condition?
Whether the input voltage is
normal?
Whether refrigerant is
superuous?
Replace main board of outdoor
unit
Is malfunction eliminated?
Replace compressor
End
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Page 48
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Installation and Maintenance
Service Manual
(2)
Malfunction of Temperature Sensor (F3/F4/F5)
Main check point:
Whether the temperature sensor is damaged?
Whether the terminal of temperature sensor is loose or not connected?
Whether the main board is damaged?
Check ow chart:
Start the troubleshooting for
temperature sensor
Check the connection between
temperature sensor and wiring
terminal is loose or in poor connection
Check whether the temperature sensor
is normal according to the Resistance
Value Table for Temperature Sensor?
Insert the temperature
sensor well
Is malfunction eliminated?
Is malfunction eliminated?
Replace the
temperature sensor
Replace the controller
End
No
No
No
No
Yes
Yes
Yes
Yes
Page 49
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Installation and Maintenance
Service Manual
(3)
Malfunction of Overload Protection of Compressor (H3) and Discharge High-temperature Protection of Compressor (E4)
Main check point:
Whether the electronic expansion valve is connected well and whether it’s damaged?
Whether the refrigerant is leaking?
Whether the overload protector is damaged?
Check ow chart:
Start
Whether the overload protector is
connected?
Replace overload
protector
Connect wire
correctly according
to circuit diagram
Measure the resistance between both
ends of overload protector under
ambient temperature. Whether the
resistance <1KΩ?
Whether wire connection wire electronic
expansion valve is in good condition?
Check the coil of electronic
expansion valve. If it’s
damaged, please replace it.
Is malfunction eliminated?
If the refrigerant is leaking,
please add refrigerant
according to Service Manual.
Is malfunction eliminated?
Replace main board of
outdoor unit
End
Yes
Yes
Yes
Yes
No
No
No
No
Yes
No
Remark:
Detection method for electronic expansion valve: There are 5 wires for the coil of electronic expansion valve and one of them are
common port (the left or the right wire) .The resistance for other terminals are all most the same (about 100Ω). You can measure
those resistance values to judge whether the electronic expansion valve is damaged or not.
Page 50
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Installation and Maintenance
Service Manual
(4)
Charging Malfunction of Capacitor (PU)
Main check point:
Whether input power is normal?
Main board is damaged.
Check ow chart:
Energize and turn on the unit;
wait for 1 min
There is malfunction for the
detection circuit on main
board of outdoor unit
Check the input power and
resume the power supply
normal
Is malfunction eliinated?
Measure the voltage at
both ends of big electrolytic
capacitor with the DC notch of
universal meter
Is the voltage more than
100V?
Check whether the input
voltage is within the normal
range?
Replace main board of
outdoor unit
End
No
No
No
Yes
Yes
Yes
Page 51
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Installation and Maintenance
Service Manual
(5)
Malfunction of Overload Protection (E8)
Main check point:
Whether the tube temperature sensor is normal?
Whether the outdoor ambient temperature is within the normal range?
Whether indoor fan and outdoor fan can operate normally?
Whether radiation environment inside or outside the unit is good?
Check ow chart:
Start
Check whether outdoor and indoor tube
temperature sensors are normal?
Replace the tube temperature
sensor
Normal protection. Please
improve the ambient temperature
Improve the radiation
environment for the unit
Check whether the fan
terminal is connected well.
Whether the fan is damaged
Replace fan capacitor
(unavailable for DC fan)
Replace outdoor
fan
Whether outdoor ambient
temperature is more than 53oC?
Whether radiation inside or
outdoor the unit is good?
Whether outdoor fan
operates normally?
Replace main board of
outdoor unit
End
No
Yes
Yes
Yes
Yes
No
No
No
Remark:
When overload protection occurs under cooling mode, it’s because the main board detected the outdoor tube temperature sensor
exceeds limited temperature and then the unit stops operation. Please check outdoor tube temperature sensor;
When overload protection occurs under heating mode, it’s because the main board detected the indoor tube temperature sensor
exceeds limited temperature and then the unit stops operation. Please check indoor tube temperature sensor;
Page 52
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Installation and Maintenance
Service Manual
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
(6)
Malfunction of IPM Protection (H5)
Main check point:
Whether input voltage is within the normal range?
Whether wires of compressor are connected reliably, tightly or correctly?
Whether the resistance of compressor coil is normal? Whether the insulation between compressor coil and copper
pipe is in good condition?
Whether the unit is overloading? Whether the radiation for the unit is in good condition?
Whether the volume of charged refrigerant is proper?
Check ow chart:
Energize and
turn on the unit
Whether compressor wires
are connected correctly?
Whether there’re above
circumstances?
Connect compressor wires
according to correct wiring
method
Modify it according to Service
Manual and then energize
and turn on the unit
Measure the resistance
beween two phases of three
phases of compressor
Is resistance value normal?
Measure the resistance
between three-phase of
compressor and copper pipe
Is resistance value more than
500MΩ?
Replace compressor
Is malfunction eliminated?
Replace main board of
outdoor unit
End
Please check:
1.Whether the heat exchangers for indoor unit and
outdoor unit are dirty? Whether the heater exchangers
are covered by other objects?
2.Whether indoor fan and outdoor fan operate normally?
3.Whether system pressure is too high?
4.Whether voltage is too high due to superuous
refrigerant?
Page 53
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Installation and Maintenance
Service Manual
(7)
Malfunction of PFC Protection (HC)
Main check point:
Whether power supply is normal?
Check ow chart:
Start
Check whether power supply is
normal
Is power abnormal?
Replace main board of
outdoor unit
End
Turn on the unit again
after the power is
resumed
Yes
No
Page 54
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Installation and Maintenance
Service Manual
(8)
Malfunction of Communication (E6)
Main check point:
Check whether connection wires between indoor unit and outdoor unit and wiring inside the unit are connected well?
Check the main board of indoor unit or main board of outdoor unit is damaged?
Check ow chart:
Communication malfunction
De-energize the unit and then
check whether connection wires
between indoor unit and outdoor
unit and wiring inside the electric
box are correct
Are wires are connected correctly?
Replace main board of indoor unit
Is malfunction eliminated?
End
Replace main board
of outdoor unit
Connect wire correctly
according to circuit
diagram
Is malfunction eliminated?
No
No
No
Yes
Yes
Yes
Page 55
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Installation and Maintenance
Service Manual
(9)
Malfunction of Failure Start-up of Compressor (LC)
Main check point:
Whether the compressor wires are connected correctly?
Whether the stop time for compressor is enough?
Whether compressor is damaged?
Whether the refrigerant-charging volume is superuous?
Check ow chart:
Energize and turn
on the unit
Whether the stop time for
compressor is more than 3min?
Whether compressor wires are
connected correctly?
The stop time for unit is not
enough; high pressure and
low pressure of system are
unbalanced; please wait for
3min and then restart up the unit
Whether the refrigerant volume
is superuous?
Please charge the refrigerant
according to Service Manual
Is malfunction eliminated?
Replace main board of
outdoor unit
Is malfunction eliminated?
Replace compressor
End
Connect compressor wires
according to wiring diagram
Is malfunction eliminated?
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Page 56
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Installation and Maintenance
Service Manual
(10) Malfunction of Overcurrent Protection E5
Main detection points:
● Is the supply voltage unstable with big uctuation?
● Is the supply voltage too low with overload?
● Hardware trouble?
Malfunction diagnosis process:
Start
Is the supply voltage unstable
with big uctuation?
Normal uctuation should be within 10 %
of the rated voltage on the nameplate
Adjust the supply voltage to maintain it
within normal range
Clean the indoor and outdoor heat
exchangers and remove the blockage
of air inlet and outlet
Check the motor and reinstall the
motor to have the fan run normally
Replace the mainboard with the same
model
Flush the heat exchangers with high
pressure nitrogen
Replace the compressor
Replace the mainboard
with the same model
End
Is the supply voltage too low
with overload?
Is the indoor / outdoor
heat exchanger dirty,or are the air inlet
and outlet blocked?
The fan is abnormal? Fan
speed is too low or fan doesn’t rotate
Measure the current of live wire on
the main board with a clamp ampere
meter. Is the current higher than the
value of the overcurrent protection?
Is there blockage inside the system?
(Filth blockage, ice plug, greasy
blockage, the cut off valve hasn’t been
opened completely)
Is the compressor running abnormally?
Is there abnormal sound or oil leakage;
Is the temperature of the shell too high,
etc.?
Is malfunction
eliminated
Is malfunction
eliminated
Is malfunction
eliminated
Is malfunction
eliminated
Is malfunction
eliminated
Is malfunction
eliminated
Is malfunction
eliminated
Yes Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No No
No
No
No
No
No No
No
No
No
No
No
Page 57
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Installation and Maintenance
Service Manual
(9) Other
Malfunction
1.IPM module temperature sensor is open-circuited(P7)
Hardware of main board is damaged. Please replace main board.
2.Overheating protection of IPM module(P8)
①
Poor radiation because the module radiator is dirty;
②
IPM module is damaged;
③
Malfunction of outdoor fan, etc;
3.Detection circuit malfunctions of phase-current of compressor (U1)
Hardware of main board is damaged. Please replace main board.
4.DC busbar voltage is too high (PH)
①
Input voltage is too high or unstable;
②
Hardware of main board is damaged;
5.DC busbar voltage is too low (PL)
①
Input voltage is too low or unstable;
②
Hardware of main board is damaged;
6.Malfunction of ODU DC fan (L3)
①
The wire terminal of outdoor fan motor is loosed, x the terminal.
②
Motor damaged, replace the motor.
③
Fan motor module on mainboard is damaged, replace the main board AP1
Page 58
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Installation and Maintenance
Service Manual
Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting
Set temperature is improper Observe the set temperature on remote controller Adjust the set temperature
Rotation speed of the IDU fan
motor is set too low
Small wind blow Set the fan speed at high or medium
Filter of indoor unit is blocked Check the lter to see it's blocked Clean the lter
Installation position for indoor unit
and outdoor unit is improper
Check whether the installation postion is proper
according to installation requirement for air
conditioner
Adjust the installation position, and install the
rainproof and sunproof for outdoor unit
Refrigerant is leaking
Discharged air temperature during cooling is
higher than normal discharged wind temperature;
Discharged air temperature during heating is
lower than normal discharged wind temperature;
Unit's pressure is much lower than regulated
range
Find out the leakage causes and deal with it.
Add refrigerant.
Malfunction of 4-way valve Blow cold wind during heating Replace the 4-way valve
Malfunction of capillary
Discharged air temperature during cooling is
higher than normal discharged wind temperature;
Discharged air temperature during heating is
lower than normal discharged wind temperature;
Unit't pressure is much lower than regulated
range. If refrigerant isn’t leaking, part of capillary
is blocked
Replace the capillary
Flow volume of valve is
insufcient
The pressure of valves is much lower than that
stated in the specication
Open the valve completely
Malfunction of horizontal louver Horizontal louver can’t swing
Refer to point 3 of maintenance method for
details
Malfunction of the IDU fan motor The IDU fan motor can’t operate
Refer to troubleshooting for H6 for maintenance
method in details
Malfunction of the ODU fan motor The ODU fan motor can't operate
Refer to point 4 of maintenance method for
details
Malfunction of compressor Compressor can't operate
Refer to point 5 of maintenance method for
details
9.3 Troubleshooting for Normal Malfunction
1. Air Conditioner Can't be Started Up
2. Poor Cooling (Heating) for Air Conditioner
3. Horizontal Louver Can't Swing
Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting
No power supply, or poor
connection for power plug
After energization, operation indicator isn’t bright
and the buzzer can't give out sound
Conrm whether it's due to power failure. If yes,
wait for power recovery. If not, check power
supply circuit and make sure the power plug is
connected well.
Wrong wire connection between
indoor unit and outdoor unit,
or poor connection for wiring
terminals
Under normal power supply circumstances,
operation indicator isn't bright after energization
Check the circuit according to circuit diagram
and connect wires correctly. Make sure all
wiring terminals are connected rmly
Electric leakage for air conditioner
After energization, room circuit breaker trips off at
once
Make sure the air conditioner is grounded
reliably
Make sure wires of air conditioner is connected
correctly
Check the wiring inside air conditioner. Check
whether the insulation layer of power cord is
damaged; if yes, place the power cord.
Model selection for air switch is
improper
After energization, air switch trips off Select proper air switch
Malfunction of remote controller
After energization, operation indicator is bright,
while no display on remote controller or buttons
have no action.
Replace batteries for remote controller
Repair or replace remote controller
Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting
Wrong wire connection, or poor
connection
Check the wiring status according to circuit
diagram
Connect wires according to wiring diagram to
make sure all wiring terminals are connected
rmly
Stepping motor is damaged Stepping motor can't operate Repair or replace stepping motor
Main board is damaged
Others are all normal, while horizontal louver
can't operate
Replace the main board with the same model
Page 59
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Installation and Maintenance
Service Manual
5. Abnormal Sound and Vibration
Possible causes Discriminating method (air conditioner status) Troubleshooting
When turn on or turn off the unit,
the panel and other parts will
expand and there's abnormal
sound
There's the sound of "PAPA"
Normal phenomenon. Abnormal sound will
disappear after a few minutes.
When turn on or turn off the unit,
there's abnormal sound due
to ow of refrigerant inside air
conditioner
Water-running sound can be heard
Normal phenomenon. Abnormal sound will
disappear after a few minutes.
Foreign objects inside the indoor
unit or there're parts touching
together inside the indoor unit
There's abnormal sound fro indoor unit
Remove foreign objects. Adjust all parts'
position of indoor unit, tighten screws and stick
damping plaster between connected parts
Foreign objects inside the outdoor
unit or there're parts touching
together inside the outdoor unit
There's abnormal sound fro outdoor unit
Remove foreign objects. Adjust all parts'
position of outdoor unit, tighten screws and
stick damping plaster between connected parts
Short circuit inside the magnetic
coil
During heating, the way valve has abnormal
electromagnetic sound
Replace magnetic coil
Abnormal shake of compressor Outdoor unit gives out abnormal sound
Adjust the support foot mat of compressor,
tighten the bolts
Abnormal sound inside the
compressor
Abnormal sound inside the compressor
If add too much refrigerant during maintenance,
please reduce refrigerant properly. Replace
compressor for other circumstances.
4. Air Conditioner is Leaking
Possible causes Discriminating method (air conditioner status) Troubleshooting
Drain pipe is blocked Water leaking from indoor unit
Eliminate the foreign objects inside the drain
pipe
Drain pipe is broken Water leaking from drain pipe Replace drain pipe
Wrapping is not tight
Water leaking from the pipe connection place of
indoor unit
Wrap it again and bundle it tightly
Page 60
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Installation and Maintenance
Service Manual
10. Exploded View and Parts List
10.1 Indoor Unit
/
F
C
HOUR
ONOFF
ASH-18AIM2 PT
Page 61
57
Installation and Maintenance
Service Manual
Above data is subject to change without notice.
NO.
Description
Part Code
QtyASH-18AIM2 PT
Product Code CB304N02500_L31222
1 Front Panel Assy 20012914_L31222 1
2 Display Board 30565139 1
3 Filter Sub-Assy 1112208901 2
4 Screw Cover 242520179 3
5 Front Case Sub-Assy 2001266701 1
6 Rear Case assy 22202193 1
7 Guide Louver 1051220501 1
8 Air Louver 1 1051211602 1
9 Bafe Plate 2611222802 1
10 Helicoid Tongue 2611223802 1
11 Left Axile Bush 10512037 1
12 Rubber Plug (Water Tray) 76712012 1
13 Cross Flow Fan 10352019 1
14 O-Gasket sub-assy of Bearing 7651205102 1
15 Ring of Bearing 26152022 1
16 Evaporator Assy 01002575 1
17 Evaporator Support 24212133 1
18 Connecting pipe clamp 2611216402 1
19 Motor Press Plate 26112494 1
20 Fan Motor 15012146 1
21 Wall Mounting Frame 01252218 1
22 Drainage hose 05230014 1
23 Step Motor 15012086 1
24 Crank 10582070 1
25 Air Louver 2 1051211702 1
26 Axile Bush 10542036 1
27 Electric Box Cover2 2012214204 1
28 Electric Box Assy 10000201610 1
29 Main Board 30138000785 1
30 Jumper 4202300121 1
31 Electric Box 2011210801 1
32 Terminal Board 42011233 1
33 Electric Box Cover1 20122154 1
34 Shield Cover of Electric Box 01592092 1
35 Remote Controller 30510125_L31222 1
36 Ambient Temperature Sensor 390000453 1
37 Tube Sensor 390000591 1
38 Power Cord 4002052317 1
39 Cold Plasma Generator 1114001602 1
Page 62
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Installation and Maintenance
Service Manual
ASH-24AIM2 PT
37 38
34
33
35
36
1
2
3
4
6
7
8
9
11
12
13
14
15
16
17
18
19
20
21
22
23
25
26
27
28
29
30
32
5
24
10
31
/
F
C
HOUR
ONOFF
Page 63
59
Installation and Maintenance
Service Manual
Above data is subject to change without notice.
NO.
Description
Part Code
QtyASH-24AIM2 PT
Product Code CB304N02800_L31222
1 Front Panel Assy 20012957_L31222 1
2 Filter Sub-Assy 11122091 2
3 Screw Cover 242520179 3
4 Front Case 2001297401 1
5 Air Louver 1 1051215901 3
6 Helicoid Tongue 2611218702 1
7 Left Axile Bush 10512037 1
8 Rear Case assy 20022555 1
9 Rubber Plug (Water Tray) 76712012 1
10 Ring of Bearing 26152025 1
11 O-Gasket sub-assy of Bearing 7651205102 1
12 Cross Flow Fan 10352045 1
13 Evaporator Support 24212139 1
14 Evaporator Assy 01100100032 1
15 Wall Mounting Frame 01252032 1
16 Motor Press Plate 26112330 1
17 Fan Motor 15012098 1
18 Pipe Clamp 2611218801 1
19 Drainage hose 0523001405 1
20 Step Motor 1521300101 1
21 Crank 10582070 1
22 Display Board 30565139 1
23 Guide Louver 1051220801 1
24 Axile Bush 10542036 2
25 Electric Box 2011210801 1
26 Terminal Board 42011233 1
27 Electric Box Cover2 2012214204 1
28 Main Board 30138000783 1
29 Shield cover of Electric Box 01592092 1
30 Electric Box Cover1 20122154 1
31 Jumper 4202300124 1
32 Electric Box Assy 10000202204 1
33 Power Cord / /
34 Connecting Cable 4002052317 1
35 Tube Sensor 390000591 1
36 Ambient Temperature Sensor 390000453 1
37 Remote Controller 30510125_L31222 1
38 Cold Plasma Generator 1114001602 1
Page 64
60
Installation and Maintenance
Service Manual
10.2 Outdoor Unit
ASH-18AIM2 PT
2
1
3
4
5
6
7
8
9
101112
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
29
30
28
31
32
33
34
35
Page 65
61
Installation and Maintenance
Service Manual
Above data is subject to change without notice.
NO.
Description
Part Code
Qty
ASH-18AIM2 PT
Product Code CB404W03401_L31222
1 Front Grill 22415010 1
2 Front Panel 01535013P 1
3 Electrical Heater (Chassis) 765100045 1
4 Drainage Connecter 06123401 1
5 Chassis Sub-assy 02803270P 1
6 Drainage hole Cap 06813401 1
7 Compressor and ttings 00105249G 1
8 Magnet Coil 4300040045 1
9 4-Way Valve Assy 03073203 1
10 Cut off Valve Assy 1/2 07133774 1
11 Cut off Valve Sub-Assy 07133204 1
12 Valve support assy 01715010P 1
13 Right Side Plate 0130509402P 1
14 Valve cover 22245002 1
15 Handle 26233053 1
16 Wiring Clamp 26115004 1
17 Rear Grill 01473043 1
18 Condenser Assy 01163865 1
19 Reactor / /
20 Clapboard Assy 01233153 1
21 Coping 01255005P 1
22 Supporting Board(Condenser) 01795010 1
23 Motor Support Sub-Assy 01705036 1
24 Fan Motor 1501506402 1
25 Axial Flow Fan 10335008 1
26 Left Side Plate 01305093P 1
27 left handle 26233053 1
28 Electric Box Assy 10000100111 1
29 Wire Clamp 71010003 1
30 Terminal Board 420101943 1
31 Electric Box 20113027 1
32 Radiator 49010252 1
33 Main Board 30138000415 1
34 Insulated Board (Cover of Electric Box) 20113003 1
35 Temperature Sensor 3900030901 1
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ASH-24AIM2 PT
1
2
3
4
5
6
7
8
9
10 11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
35
34
36
37
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Above data is subject to change without notice.
NO.
Description
Part Code
Qty
ASH-24AIM2 PT
Product Code CB404W03801_L31222
1 Front Grill 22415011 1
2 Cabinet 01435004P 1
3 Left Handle 26233053 1
4 Front Side Plate 01305086P 1
5 Drainage Connecter 06123401 1
6 Chassis Sub-assy 0280325501P 1
7 Drainage hole Cap 06813401 1
8 Gas-liquid Separator Assy 07225017 1
9 Compressor and Fittings 00105249G 1
10 Magnet Coil 4300040045 1
11 4-Way Valve Assy 03073144 1
12 Valve Support Sub-Assy 0171501201P 1
13 Cut off Valve Sub-Assy 07135072 1
14 Cut off Valve 07133157 1
15 Bafe(Valve Support) 01365435P 1
16 Right Side Plate 0130504401P 1
17 Valve Cover 22245003 1
18 Big Handle 26235001 1
19 Wiring Clamp 26115004 1
20 Rear Grill 01475013 1
21 Condenser Assy 01163917 1
22 Electrical Heater (Chassis) 7651000411 1
23 Clapboard Assy 01233164 1
24 Condenser Support Plate 01175092 1
25 Coping 01255006P 1
26 Motor Support Sub-Assy 01705025 1
27 Fan Motor 1501403402 1
28 Axial Flow Fan 10335014 1
29 Left Side Plate 01305043P 1
30 Electric Box Assy 10000100103 1
31 Wire Clamp 71010003 1
32 Terminal Board 420101943 1
33 Electric Box 20113027 1
34 Radiator 49010252 1
35 Main Board 30138000420 1
36 Insulated Board (Cover of Electric Box) 20113003 1
37 Temperature Sensor 3900030901 1
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11. Removal Procedure
11.1 Removal Procedure of Indoor Unit
Warning: Be sure to wait for a minimum of 20 minutes
after turning off all power supplies and discharge the
refrigerant completely before removal.
ProcedureSteps
a
a
b
panel
clasp
left filter and right filer
1. Remove filter
Open the panel.
Loosen the clasp shown in the fig and then pull
the left filter and right filer outwards to remove
them.
2. Remove panel
Remove two screws fixing display and then
remove it.
screws
display
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a
b
ProcedureSteps
4. Remove electric box cover
electric box cover
5. Remove front case sub-assy
Remove the screws on the electric box cover
to remove the electric box cover.
Remove the screws fixing front case.
Note:
1.Open the screw caps before removing the
screws around the air outlet.
2.The quantity of screws fixing the front case
sub-assy is different for different models.
screw
screw caps
screws
front case sub-assy
3. Remove horizontal louver
Push out the axile bush on horizontal louver.
Bend the horizontal louver with hand and then
separate the horizontal louver from the
crankshaft of step motor to remove it.
location of step motor
horizontal louver
axile bush
panel rotation
groove
Separate the panel rotation shaft from the
groove fixing the front panel and then removes
the front panel.
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a
b
b
ProcedureSteps
7. Remove electric box assy
6. Remove vertical louver
Loosen the connection clasps between shield
cover of electric box sub-assy and electric box,
and then remove the shield cover of electric
box sub-assy.
Cut off the tieline which binding the temperature
sensor and grounding wire on the evaporator,
and then pull out the indoor tube temperature
sensor from the evaporator.
Remove the screws at the connection place
between grounding wire and evaporator.
Pull out the wiring terminal of motor and wiring
terminal of step motor from the mainboard.
Note:
1.Location of tube temperature sensor and
tieline on the evaporator is different for different
models.
2.When pulling out the wiring terminal, pay
attention to loose the clasp and don’t pull it so
hard.
Loosen the connection clasps between vertical
louver and bottom case to remove vertical
louver.
vertical louver
bottom
case
clasps
clasps
shield cover of electric box sub-assy
electric box
temperature sensor
grounding wire
evaporator
Location of
grounding
wire screw
wiring
terminal
of motor
wiring terminal
of step motor
Loosen the clasps at left, middle and right sides
of front case. Life the front case sub-assy
upwards to remove it.
left clasp
middle clasp
right clasp
front case sub-assy
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a
c
b
ProcedureSteps
8. Remove evaporator assy
At the back of the unit, remove the screw fixing
connection pipe clamp and then remove the
connection pipe clamp.
Remove 3 screws fixing evaporator assy.
evaporator
c Adjust the position of connection pipe on
evaporator slightly and then lift the evaporator
upwards to remove it.
connection pipe
Remove the screw fixing electric box assy and
then remove the electric box assy.
electric box
screws
screw
pipe clamp
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a
b
ProcedureSteps
10. Remove motor and cross flow blade
9. Remove stepping motor
Remove the screws fixing motor clamp and
then remove the motor clamp.
Remove the screws at the connection place of
cross flow blade and motor; lift the motor and
cross flow blade upwards to remove them.
c Remove the bearing holder sub-assy.
Remove the screw fixing step motor and then
remove the step motor.
holder sub-assy
bottom case
cross flow
motor clamp
motor
screws
screw
screws
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11.2 Removal Procedure of Outdoor Unit
Twist off the screws used for fixing the handle and
v
alve cover
,
pull the handle and v
alve cover
up
ward to remove it.
b
a
a
1. Remove top panel
Remove
grille
the 3 screws connecting the top
panel with the front panel and the right side
plate, and then remove the top panel.
2. Remove grille , panel and rear grill
Remove the 2 screws connecting the grille
and the panel, and then remove the grille.
Steps
Procedure
handle
valve cover
top panel
ASH-18AIM2 PT
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b
a
b
Remove
Remove the 6 screws connecing the left side
plate and right side plate and then remove
rear grill
the 5 screws connecting the panel
with the chassis and the motor support,
and then remove the panel.
3. Remove left side plate and right side plate
Remove the scre ws connecting the right
side plate with the chassis, the valve
support and the electric box, and then
remove the right side plate assy .
Remove the scre ws connecting the le ft
side plate and the chassis, and then
remove the left side plate assy .
panel
rear grill
right side plate
left side plate
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a
b
motor support
motor
4. Remove fan motor
5. Remov e electric box
Remove the scre ws fixing the electric box
sub-assy; loosen the wi re bundle; pull out
the wi ring terminals and then pull the
electric box upwards to remove it.
Remove the 4 tappin g screw s fixing the
motor; disconnect the leading wire insert of
the motor and then remove the moto r.
Remove the 2 tappin g scre ws fixing the
motor support and then pull the motor
support up wa rds to remove it.
Remove the nuts fixing the blade and then
remove the axial flow blade.
axial flow blade
electric box
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6.Remove soundproof sponge
Since the piping ports on the soundproof sponge are
torn easily, remove the soundproof sponge carefully
.
soundproof sponge
7. Remove
Isolation sheet
Remove the 3 screws fixing the isolation sheet
and then remove the Isolation sheet.
Isolation sheet
8. Remove4-way valve assy
Discharge the refrigerant completely;unsolder
the pipelines connecting the compressor and
the condenser assy,and then remove the 4-way
valve assy.
4-way valve assy
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Remove the 3 foot nuts fixing the compressor
and then remove the compressor.
Remove the screws connecting the support
(condenser) and condenser assy,and then
remove the support(condenser).
9. Remove compressor
compressor
10.Remove condenser sub-assy
a
support
capillary sub-assy
b
Remove the chassis sub-assy and condenser
sub-assy.
condenser sub-assy
chassis sub-assy
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ASH-24AIM2 PT
Twist off the screws used for fixing the handle and
v
alve cover
,
pull the handle and v
alve cover
up
ward to remove it.
b
a
a
1. Remove top panel
Remove the 3 screws connecting the top
panel with the front panel and the right side
plate, and then remove the top panel.
2. Remove grille,
front side plate and panel.
Remove
Remove the 1 screw connecting the front side
plate and the panel,and then remove the front
side plate.
the 2 screws connecting the grille
and the panel, and then remove the grille.
b
Steps
Procedure
handle
valve cover
front side plate
grille
top panel
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c
a
b
Remove the 5 screws connecting the panel
with the chassis and the motor support,
and then remove the panel.
3. Remove right side plate and
left side plate
Remove the scre ws connecting the right
side plate with the chassis, the valve
support and the electric box, and then
remove the right side plate assy .
panel
right side plate
Remove the screws connecting the left
side plate and the chassis, and then
left side plate
remove the left side plate assy.
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fan motor fixing frame
4. Remove fan motor and
axial flow blade
5. Remov e electric box
Remove the scre ws fixing the electric box
sub-assy; loosen the wi re bundle; pull out
the wi ring terminals and then pull the
electric box upwards to remove it.
Remove the 4 tapping screws fixing the
motor; disconnect the leading wire insert of
the motor and then remove the motor.
Remove the 2 tapping screws fixing the
motor support and then pull the motor
support upwards to remove it.
electric box
fan motor
axial flow blade
Remove the nuts fixing the blade and then
remove the axial flow blade.
a
b
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a
b
6.Remove soundproof sponge and
Since the piping ports on the soundproof sponge are
torn easily, remove the soundproof sponge carefully
7. Remove Isolation sheet
Remove the 3 screws fixing the isolation sheet
and then remove the Isolation sheet.
Isolation sheet
Discharge the refrigerant completely;unsolder
the pipelines connecting the compressor and
the condenser assy,and then remove the 4-way
valve assy.
4-wayvalve assy
4-wayvalve assy
Connection Pipe
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8. Remov
e
Remove the 3 foot nuts fixing the compressor
and then remove the compressor.
Remove the screws connecting the support
and condenser assy,and thenremove the support.
9. Remov e compressor
compressor
Cut off Valve
Cut off Valve and
Valve Support
Valve Support
10.Remove support
support
Remove the 2 bolts fixing the valve subassemblies.
Unsolder the welding joint connecting the gas valve
and the return air pipe. Remove the gas valve.
(Note: When unsoldering the soldering joint, wrap the
gas valve with wet cloth completely to avoid damage
to the valve caused by high temperature.)
Unsolder the welding joint connecting the liquid valve
and the connecting pipe.Remove the liquid valve.
Remove screws fixing valve support and then remove
the valve support; remove the screw fixing the
condenser and then pull the condenser upwards to
remove it.
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11.Remove condenser sub-assy
Remove the chassis sub-assy and condenser
sub-assy.
chassis sub-assy
condenser sub-assy
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Appendix:
1.Standard length of connection pipe
● 5m, 7.5m, 8m.
2.Min. length of connection pipe is 3m.
3.Max. length of connection pipe and max. high difference.
4.The additional refrigerant oil and refrigerant charging required after
prolonging connection pipe
● After the length of connection pipe is prolonged for 10m at the basis
of standard length, you should add 5ml of refrigerant oil for each
additional 5m of connection pipe.
● The calculation method of additional refrigerant charging amount (on
the basis of liquid pipe):
Appendix 1: Reference Sheet of Celsius and Fahrenheit
Appendix 2: Conguration of Connection Pipe
Cooling capacity
Max length of
connection pipe
Max height
difference
5000 Btu/h(1465 W) 15 m 5 m
7000 Btu/h(2051 W) 15 m 5 m
9000 Btu/h(2637 W) 15 m 10 m
12000 Btu/h(3516 W) 20 m 10 m
18000 Btu/h(5274 W) 25 m 10 m
24000 Btu/h(7032 W) 25 m 10 m
28000 Btu/h(8204 W) 30 m 10 m
36000 Btu/h(10548 W) 30 m 20 m
42000 Btu/h(12306 W) 30 m 20 m
48000 Btu/h(14064 W) 30 m 20 m
Set temperature
Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32
Ambient temperature
Fahrenheit
display
temperature
(
o
F)
Fahrenheit
(
o
F)
Celsius(oC)
Fahrenheit
display
temperature
(
o
F)
Fahrenheit
(
o
F)
Celsius(oC)
Fahrenheit
display
temperature
(
o
F)
Fahrenheit
(
o
F)
Celsius(oC)
32/33 32 0 55/56 55.4 13 79/80 78.8 26
34/35 33.8 1 57/58 57.2 14 81 80.6 27
36 35.6 2 59/60 59 15 82/83 82.4 28
37/38 37.4 3 61/62 60.8 16 84/85 84.2 29
39/40 39.2 4 63 62.6 17 86/87 86 30
41/42 41 5 64/65 64.4 18 88/89 87.8 31
43/44 42.8 6 66/67 66.2 19 90 89.6 32
45 44.6 7 68/69 68 20 91/92 91.4 33
46/47 46.4 8 70/71 69.8 21 93/94 93.2 34
48/49 48.2 9 72 71.6 22 95/96 95 35
50/51 50 10 73/74 73.4 23 97/98 96.8 36
52/53 51.8 11 75/76 75.2 24 99 98.6 37
54 53.6 12 77/78 77 25
Fahrenheit
display
temperature
(
o
F)
Fahrenheit
(
o
F)
Celsius(oC)
Fahrenheit
display
temperature
(
o
F)
Fahrenheit
(
o
F)
Celsius(oC)
Fahrenheit
display
temperature
(
o
F)
Fahrenheit
(
o
F)
Celsius(oC)
61 60.8 16 69/70 69.8 21 78/79 78.8 26
62/63 62.6 17 71/72 71.6 22 80/81 80.6 27
64/65 64.4 18 73/74 73.4 23 82/83 82.4 28
66/67 66.2 19 75/76 75.2 24 84/85 84.2 29
68 68 20 77 77 25 86 86 30
Additional refrigerant charging amount for R22, R407C, R410A and R134a
Diameter of connection pipe Outdoor unit throttle
Liquid pipe(mm) Gas pipe(mm) Cooling only(g/m) Cooling and heating(g/m)
Ф6 Ф9.5 or Ф12 15 20
Ф6 or Ф9.5 Ф16 or Ф19 15 20
Ф12 Ф19 or Ф22.2 30 120
Ф16 Ф25.4 or Ф31.8 60 120
Ф19 / 250 250
Ф22.2 / 350 350
● When the length of connection pipe is above 5m, add refrigerant according to the prolonged length of liquid pipe. The additional
refrigerant charging amount per meter is different according to the diameter of liquid pipe. See the following sheet.
● Additional refrigerant charging amount = prolonged length of liquid pipe X additional refrigerant charging amount per meter
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F:Inspection
● Check the quality of expanding port. If there is any blemish, expand the
port again according to the steps above.
The length is equal
Improper expanding
leaning
damaged
surface
crack uneven
thicknes
s
Smooth surface
Downwards
Pipe
Shaper
Union pipe
Pipe
Expander
Hard
mold
Pipe
Pipe
Pipe cutter
Leaning Uneven Burr
Improper pipe expanding is the main cause of refrigerant leakage.Please
expand the pipe according to the following steps:
A:Cut the pip
● Conrm the pipe length according to the distance of indoor unit and outdoor unit.
● Cut the required pipe with pipe cutter.
B:Remove the burrs
● Remove the burrs with shaper and prevent the burrs from getting into the pipe.
C:Put on suitable insulating pipe
D:Put on the union nut
● Remove the union nut on the indoor connection pipe and outdoor valve; install
the union nut on the pipe.
E:Expand the port
● Expand the port with expander.
● "A" is different according to the diameter, please refer to the sheet below:
Outer diameter(mm)
A(mm)
Max Min
Ф6 - 6.35 (1/4") 1.3 0.7
Ф9.52 (3/8”) 1.6 1.0
Ф12 - 12.70 (1/2”) 1.8 1.0
Ф16 - 15.88 (5/8”) 2.4 2.2
Appendix 3: Pipe Expanding Method
Note:
Note:
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Appendix 4: List of Resistance for Temperature Sensor
Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor(15K)
Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ)
-19 138.1 20 18.75 59 3.848 98 1.071
-18 128.6 21 17.93 60 3.711 99 1.039
-17 121.6 22 17.14 61 3.579 100 1.009
-16 115 23 16.39 62 3.454 101 0.98
-15 108.7 24 15.68 63 3.333 102 0.952
-14 102.9 25 15 64 3.217 103 0.925
-13 97.4 26 14.36 65 3.105 104 0.898
-12 92.22 27 13.74 66 2.998 105 0.873
-11 87.35 28 13.16 67 2.896 106 0.848
-10 82.75 29 12.6 68 2.797 107 0.825
-9 78.43 30 12.07 69 2.702 108 0.802
-8 74.35 31 11.57 70 2.611 109 0.779
-7 70.5 32 11.09 71 2.523 110 0.758
-6 66.88 33 10.63 72 2.439 111 0.737
-5 63.46 34 10.2 73 2.358 112 0.717
-4 60.23 35 9.779 74 2.28 113 0.697
-3 57.18 36 9.382 75 2.206 114 0.678
-2 54.31 37 9.003 76 2.133 115 0.66
-1 51.59 38 8.642 77 2.064 116 0.642
0 49.02 39 8.297 78 1.997 117 0.625
1 46.6 40 7.967 79 1.933 118 0.608
2 44.31 41 7.653 80 1.871 119 0.592
3 42.14 42 7.352 81 1.811 120 0.577
4 40.09 43 7.065 82 1.754 121 0.561
5 38.15 44 6.791 83 1.699 122 0.547
6 36.32 45 6.529 84 1.645 123 0.532
7 34.58 46 6.278 85 1.594 124 0.519
8 32.94 47 6.038 86 1.544 125 0.505
9 31.38 48 5.809 87 1.497 126 0.492
10 29.9 49 5.589 88 1.451 127 0.48
11 28.51 50 5.379 89 1.408 128 0.467
12 27.18 51 5.197 90 1.363 129 0.456
13 25.92 52 4.986 91 1.322 130 0.444
14 24.73 53 4.802 92 1.282 131 0.433
15 23.6 54 4.625 93 1.244 132 0.422
16 22.53 55 4.456 94 1.207 133 0.412
17 21.51 56 4.294 95 1.171 134 0.401
18 20.54 57 4.139 96 1.136 135 0.391
19 19.63 58 3.99 97 1.103 136 0.382
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Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K)
Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ)
-19 181.4 20 25.01 59 5.13 98 1.427
-18 171.4 21 23.9 60 4.948 99 1.386
-17 162.1 22 22.85 61 4.773 100 1.346
-16 153.3 23 21.85 62 4.605 101 1.307
-15 145 24 20.9 63 4.443 102 1.269
-14 137.2 25 20 64 4.289 103 1.233
-13 129.9 26 19.14 65 4.14 104 1.198
-12 123 27 18.13 66 3.998 105 1.164
-11 116.5 28 17.55 67 3.861 106 1.131
-10 110.3 29 16.8 68 3.729 107 1.099
-9 104.6 30 16.1 69 3.603 108 1.069
-8 99.13 31 15.43 70 3.481 109 1.039
-7 94 32 14.79 71 3.364 110 1.01
-6 89.17 33 14.18 72 3.252 111 0.983
-5 84.61 34 13.59 73 3.144 112 0.956
-4 80.31 35 13.04 74 3.04 113 0.93
-3 76.24 36 12.51 75 2.94 114 0.904
-2 72.41 37 12 76 2.844 115 0.88
-1 68.79 38 11.52 77 2.752 116 0.856
0 65.37 39 11.06 78 2.663 117 0.833
1 62.13 40 10.62 79 2.577 118 0.811
2 59.08 41 10.2 80 2.495 119 0.77
3 56.19 42 9.803 81 2.415 120 0.769
4 53.46 43 9.42 82 2.339 121 0.746
5 50.87 44 9.054 83 2.265 122 0.729
6 48.42 45 8.705 84 2.194 123 0.71
7 46.11 46 8.37 85 2.125 124 0.692
8 43.92 47 8.051 86 2.059 125 0.674
9 41.84 48 7.745 87 1.996 126 0.658
10 39.87 49 7.453 88 1.934 127 0.64
11 38.01 50 7.173 89 1.875 128 0.623
12 36.24 51 6.905 90 1.818 129 0.607
13 34.57 52 6.648 91 1.736 130 0.592
14 32.98 53 6.403 92 1.71 131 0.577
15 31.47 54 6.167 93 1.658 132 0.563
16 30.04 55 5.942 94 1.609 133 0.549
17 28.68 56 5.726 95 1.561 134 0.535
18 27.39 57 5.519 96 1.515 135 0.521
19 26.17 58 5.32 97 1.47 136 0.509
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Resistance Table of Discharge Temperature Sensor for Outdoor(50K)
Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ) Temp(oC) Resistance(kΩ)
-29 853.5 10 98 49 18.34 88 4.75
-28 799.8 11 93.42 50 17.65 89 4.61
-27 750 12 89.07 51 16.99 90 4.47
-26 703.8 13 84.95 52 16.36 91 4.33
-25 660.8 14 81.05 53 15.75 92 4.20
-24 620.8 15 77.35 54 15.17 93 4.08
-23 580.6 16 73.83 55 14.62 94 3.96
-22 548.9 17 70.5 56 14.09 95 3.84
-21 516.6 18 67.34 57 13.58 96 3.73
-20 486.5 19 64.33 58 13.09 97 3.62
-19 458.3 20 61.48 59 12.62 98 3.51
-18 432 21 58.77 60 12.17 99 3.41
-17 407.4 22 56.19 61 11.74 100 3.32
-16 384.5 23 53.74 62 11.32 101 3.22
-15 362.9 24 51.41 63 10.93 102 3.13
-14 342.8 25 49.19 64 10.54 103 3.04
-13 323.9 26 47.08 65 10.18 104 2.96
-12 306.2 27 45.07 66 9.83 105 2.87
-11 289.6 28 43.16 67 9.49 106 2.79
-10 274 29 41.34 68 9.17 107 2.72
-9 259.3 30 39.61 69 8.85 108 2.64
-8 245.6 31 37.96 70 8.56 109 2.57
-7 232.6 32 36.38 71 8.27 110 2.50
-6 220.5 33 34.88 72 7.99 111 2.43
-5 209 34 33.45 73 7.73 112 2.37
-4 198.3 35 32.09 74 7.47 113 2.30
-3 199.1 36 30.79 75 7.22 114 2.24
-2 178.5 37 29.54 76 7.00 115 2.18
-1 169.5 38 28.36 77 6.76 116 2.12
0 161 39 27.23 78 6.54 117 2.07
1 153 40 26.15 79 6.33 118 2.02
2 145.4 41 25.11 80 6.13 119 1.96
3 138.3 42 24.13 81 5.93 120 1.91
4 131.5 43 23.19 82 5.75 121 1.86
5 125.1 44 22.29 83 5.57 122 1.82
6 119.1 45 21.43 84 5.39 123 1.77
7 113.4 46 20.6 85 5.22 124 1.73
8 108 47 19.81 86 5.06 125 1.68
9 102.8 48 19.06 87 4.90 126 1.64
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