Download Wall mounted split conditioner Gree Standard Standard Plus 7

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Service Manual
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Installing, starting up, and servicing air conditioner can be
hazardous due to system pressure, electrical components,
and equipment location, etc.
Only trained, qualified installers and service personnel are
allowed to install, start-up, and service this equipment.
Untrained personnel can perform basic maintenance functions such as cleaning coils. All other operations should
be performed by trained service personnel.
Make sure the outdoor unit is installed on a stable, level
surface with no accumulation of snow, leaves, or trash
beside.
When handling the equipment, observe precautions in the
manual and on tags, stickers, and labels attached to the
equipment. Follow all safety codes. Wear safety glasses
andwork gloves. Keep quenching cloth and fire extinguisher
nearby when brazing.
Follow all the installation instructions to minimize the risk
of damage from earthquakes, typhoons or strong winds.
Read the instructions thoroughly and follow all warnings or
cautions in literature and attached to the unit. Consult local
building codes and current editions of national as well as
local electrical codes.
Recognize the following safety information:
Warning
Incorrect handling could result in
personal injury or death.
Caution
Incorrect handling may result in
minor injury,or damage to product
or property.
Warning
All electric work must be performed by a licensed technician
according to local regulations and the instructions given in
this manual.
Before installing, modifying, or servicing system, main
electrical disconnect switch must be in the OFF position.
There may be more than 1 disconnect switch. Lock out
and tag switch with a suitable warning label.
Never supply power to the unit unless all wiring and tubing are completed, reconnected and checked.
This system adopts highly dangerous electrical voltage.
Incorrect connection or inadequate grounding can cause
personal injury or death. Stick to the wiring diagram and
all the instructions when wiring.
Have the unit adequately grounded in accordance with
local electrical codes.
Have all wiring connected tightly. Loose connection may
lead to overheating and a possible fire hazard.
Make sure the ceiling/wall is strong enough to bear the
weight of the unit.
Make sure the noise of the outdoor unit does not disturb
neighbors.
Avoid contact between refrigerant and fire as it generates
poisonous gas.
Apply specified refrigerant only. Never have it mixed with
any other refrigerant. Never have air remain in the
refrigerant line as it may lead to rupture and other hazards.
Make sure no refrigerant gas is leaking out when installation is completed.
Should there be refrigerant leakage, the density of refrigerant in the air shall in no way exceed its limited value,
or it may lead to explosion.
Keep your fingers and clothing away from any moving
parts.
Clear the site after installation. Make sure no foreign objects are left in the unit.
Always ensure effective grounding for the unit.
Caution
Never install the unit in a place where a combustible gas
might leak, or it may lead to fire or explosion.
Make a proper provision against noise when the unit is
installed at a telecommunication center or hospital.
Provide an electric leak breaker when it is installed in a
watery place.
Never wash the unit with water.
Handle unit transportation with care. The unit should not
be carried by only one person if it is more than 20kg.
Never touch the heat exchanger fins with bare hands.
Never touch the compressor or refrigerant piping without
wearing glove.
Do not have the unit operate without air filter.
Should any emergency occur, stop the unit and disconnect the power immediately.
Properly insulate any tubing running inside the room to
prevent the water from damaging the wall.
All installation or repair work shall be performed by your dealer or a specialized subcontractor as there is the risk of fire,
electric shock, explosion or injury.
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1
2
3
4
5
6
7
8
9
NO.
16
1
2
PG motor
3
Neutral wire
4
5
15
10
11
Outdoor fan
7
Auto button
9
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12
Up&down swing control
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10
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11
Display control terminal 2
12
13
13
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function
4-way valve control
terminal
6
8
14
Part Name
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function
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15
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5
6
7
8
9
3
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Fuse
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2
4
Indoor fan control port
5
Auxiliary heating relay K113, K112
6
7
1
11
14
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13
12
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wire and control relay K116
4-way valve control
control relay K115
Outdoor fan control
control relay K113
port
and
port
and
8
Auto button
9
Up & down swing control port
10
Indoor fan feedback interface
11
Display control port
12
Pipe temp sensor interface
13
Ambient temp sensor interface
14
High frequency transformer T1
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3
4
5
6
7
8
9
2
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Compressor control relay
2
Protective tube
3
Indoor fan control terminal
4
Neutral wire terminal of power supply
5
4-way valve control terminal & control
relay K115
6
1
Outdoor fan control terminal & control
relay K114
7
13
10 8
12
11
Auto button
Up & down swing control terminal
9
Indoor fan feedback terminal
10
Display control terminal
11
Tube temperature sensor connector
12
Ambient temperature sensor
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1
ON/OFF
Press it to start or stop operation.
2
MODE
Press it to select operation mode(AUTO/COOL/DRY/FAN/HEAT).
1
2
3
4
5
6
7
8
3
- : Press it to decrease temperature setting.
4
+ : Press it to increase temperature setting.
5
FAN
Press it to set fan speed.
6
SWING
Press it set swing angle.
7
SLEEP
8
TIMER
Press it set auto-on/auto-off timer.
1 ON/OFF :
Press this button to start the unit operation .Press this button again to stop the unit operation.
2 MODE :
Each time you press the button,a mode is selected in a sequence that goes from AUTO,COOL,DRY, FAN,and HEAT*,
as the following:
AUTO
COOL
DRY
FAN
HEAT
*
*Note:Only for models with heating function.
3
-
:
Press this button to decrease set temperature.Holding it down above 2 seconds rapidly decreases set temperature. In
AUTO mode, set temperature is not adjustable.
4
+
:
Press this button to increase set temperature.Holding
it down above 2 seconds rapidly increases set temperature. In
.
AUTO mode, set temperature is not adjustable.
5 FAN:
This button is used for setting Fan Speed in the sequence that goes from AUTO,
to Auto.
Auto
Speed 1
Speed 2
6 SWING :
Press this key to activate or deactivate the swing.
Speed 3
Speed 4
,
,
to
,then back
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7 SLEEP:
Press this button to go into the SLEEP operation mode. Press it again to cancel. This function is available in COOL , HEAT
(Only for models with heating function) or DRY mode to maintain the most comfortable temperature for you.
8 TIMER:
Press this button to initiate auto-on/auto-off timer. To cancel auto-timer program, press this button twice.
94 Combination of "+" and "-" buttons: About lock
Press " + " and " - " buttons simultaneously to lock or unlock the keypad. If the remote controller is locked ,
I n this case, press ing any button,
is displayed
blinks three times.
10 Combination of "MODE " and "-" buttons: About switch between fahrenheit and cenrigrade
At unit OFF , press "MODE " and " - " buttons simultaneously to switch between
11
and
.
Combination of "+" and "FAN" buttons:About Lamp
Under switch-on or switch-off state, you may hold "+" and "FAN" buttons simultaneously for 3 seconds to set the lamp on or
off and send the code. After being energized, the lamp is defaulted on.
Replacement of Batteries
1.Remove the battery cover plate from the rear of the remote controller. (As shown in the figure)
2.Take out the old batteries.
3.Insert two new AAA1.5V dry batteries, and pay attention to the polarity.
4. Close the battery cover plate.
Notes:
●
When replacing the batteries, do not use old or different types of batteries
otherwise, it may cause malfunction.
●
Fig.1
If the remote controller will not be used for a long time, please remove batteries
to prevent batteries from leaking.
●
The operation should be performed in its receiving range.
●
●
It should be kept 1m away from the TV set or stereo sound sets.
If the remote controller does not operate normally, please take the batteries out
and replace them after 30 seconds. If still not operating properly.replace the batteries.
Fig.2
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1 Temperature Parameters
Indoor preset temperature (Tpreset)
Indoor ambient temperature (Tamb.)
2 Basic functions (The temperature in this manual is expressed by Centigrade. If Fahrenheit, is used, the switchover between
them is Tf=TcX1.8+32.)
Once the unit is energized, the compressor shall never be restarted except 3mins interval at least. For the first energization,
if the unit is at off status before power failure, the compressor can be restarted without 3-min delay. But if the unit is at on
status before power failure, the compressor shall be restarted with 3mins delay. Once the compressor is started up, the
compressor won't stop running within 6mins with the change of room temperature.
(1)Cooling mode
Cooling conditions and process
When Tamb. Tpreset+1 , the unit starts cooling operation. In this case, the compressor and the outdoor fan operate and the
indoor fan operates at set speed.
When Tamb. Tpreset-1 , the compressor and the outdoor fan stop while the indoor fan runs at set speed.
When Tpreset-1
Tamb. Tpreset+1 , the unit will maintain its previous running state.
In cooling mode, the four-way valve is de-energized; temperature setting range is 16 30
the indoor unit displays operation
icon, cooling icon and set temperature.
Start cooling
Tamb.
Tpreset+1
Original operating status
Tpreset 1
min.
min.
min.
Stop cooling
Compressor
Outdoor fan
Set Fan speed
Indoor fan
Stop
Run
Protection Functions
Freeze potection
If the system is under freeze protection, the compressor and the outdoor fan stop operation, and the indoor fan operates at set
speed. If freeze protection is eliminated and the compressor has been out of operation for 3 minutes, the unit will resume its
previous running state.
Freeze protection period
min
Compressor
Outdoor fan
Set Fan Speed
Indoor fan
Run
Stop
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(2)Dry Mode
Dry Conditions and Process
When Tamb. Tpreset+2 , the unit will run in dry and cooling mode, in that case the compressor and outdoor fan will run and
the indoor fan will run at low speed.
Tamb. Tpreset+2 , the unit will run in dry mode, in that case, the indoor fan will run at low speed, the
When Tpreset-2
compressor and the outdoor fan will be stopped in 6 min. After 4 min, the compressor and the outdoor fan will be restarted. Dry
process is cycled as the above.
When Tamb. Tpreset-2 , the compressor and the outdoor fan will stop working and the indoor fan will run at low speed.
In this mode, the four-way valve is de-energized, and setting temperature range is between 16 30 . The displayer will display
running and drying icons and setting temperature.
Tamb.
Cooling
Tpreset+2
Dehumidfying
Tpreset 2
min
.
Stop
min.
min.
min.
Compressor
Outdoor fan
Indoor fan
Low speed
Run
Stop
Protection
Freeze potection
If freeze protection of the system is detected in dry and cooling mode, the compressor and the outdoor fan will stop
running and the indoor fan will run at low speed. When the freeze protection is released and the compressor has been
stopped for 3 min, the complete unit will resume its previous running state. Upon the condition that the compressor runs for 6
min and stops for 4 min is met and freeze protection is detected, the compressor and the outdoor fan will stop running and
the indoor fan will run at low speed. When the freeze protection is released and the compressor has been stopped for 4
min, the complete unit will resume its previous running state.
Other protection
Other protections are the same as those in cooling mode.
(3)Heating mode
Heating conditions and process
When Tamb. Tpreset+2 , the unit will run in heating mode, in that case, the four-way valve, the compressor and the outdoor
fan will run simultaneously. The indoor fan will delay at most 2mins to run. The indoor fan will run 2 mins delayed at most.
When Tamb Tpreset+4 , the compressor and the outdoor fan will stop and the four-way valve will remain energized(keep
energizing) and the indoor fan will blow residual heat.
T amb.
Tpreset +4 , the unit will maintain its previous running state.
When Tpreset +2
Under this mode, the four-way valve is energized, and setting temperature range is 16 30 . The displayer will display running
and heating icons and setting temperature.
stop heating
Tpreset
original operation status
Tpreset
Tamb.
start heating
min
min
min
Compressor
Outdoor unit
Indoor unit
min
setting
fan speed
min
setting
fan speed
4-way valve
Run
Stop
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Defrosting Conditions and Process
The unit with intelligent defrosting function can defrost according to frosting conditions. Dual8 displays H1.
Protection Function
High Temp Resistance Protection
If it is detected that the evaporator tube temperature is superheating, the outdoor fan will stop working. When the tube temperature
resumes to normal condition, the outdoor fan will resume running.
Noise Silencing Protection
If the unit is stopped by pressing ON/OFF or during switchover of modes, the reversing valve will be stopped after 2 min.
(4)Fan mode
In this mode, indoor fan runs at setting speed, and the compressor, the outdoor fan, the four-way valve and the electric heating tube
will stop running.
In this mode, temperature setting range is 16 30 . Displayer displays running icons and the setting temperature.
(5)Auto Mode
In this mode, the air conditioner will automatically select its running mode (cooling, heating or fan) with the change of ambient
temperature. The displayer will display the running icons, actual running mode icon and setting temperature. There is 30s delay
protection for mode switching. Protection functions are the same as those in any other mode.
3 Other Control
(1)Timer function
The mainboard combines general timer and clock timer functions. Timer functions are selected by equipping remote controller with
different functions.
General Timer:
Timer ON can be set under off state of unit. If timer ON reaches, the controller will run under previous setting mode. Timing interval
is 0.5hr and the setting range is 0.5-24hr.
Timer OFF can be set under on state of unit. If timer OFF reaches, the unit is turned off. Timing interval is 0.5hr within the range of
0.5-24hr.
Clock Timer:
If timer on is set under running state of unit, the system will continue running. If timer on is set under off state of unit, the system will
run in presetting mode when timer on reaches.
If timer off is set under off state of unit, the system will keep standby state. If timer off is set under on state of unit, the system will
stop running when timer off reaches.
Timer Change:
If the system is under timer state, the unit can be turned on/off by ON/OFF button of remote controller. Timing can also be reset and
then the system runs according to the final setting.
If timer on and timer off is set at the same time under running state of system, the system will keep present running state till timer off
reaches and then it will stop running.
If timer on and timer off are set at the same time under off state of system, the system will keep stopping till timer on reaches and
then it will start running.
In the future, the system will run in presetting mode when timer on reaches and stop when timer off reaches every day. If timer on
and timer off have the same setting, timer off is prevails.
(2)Auto Button
If press this button, the system will run in auto mode, and the indoor fan motor will run at auto speed; meanwhile, the swing motor
will be running. Repress this button to turn off the unit.
(3)Buzzer
When the controller is energized or receives any command or signal from the buttons or the remote controller, the buzzer will give
out a beep.
(4)Sleep Function
Choose the sleeping curve according to the preset temperature.
(5)Turbo Function
This function can be set in cooling or heating mode.
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(6)Dry Function
This function can be set in cooling or dry mode.
(7)Automatic Control of Fan Speed
In this mode, the indoor fan will automatically select high, medium or low speed with the change of ambient temperature.
(8)Up & Down Swing
After energization, up & down swing motor will rotate guide louver anticlockwise to position 0 to close air outlet.
After turning on the unit, if swing function has not been set, up & down guide louver will clockwise turn to position D in heating mode,
or clockwise turn to level position L in other modes.
If the unit is turned on with swing function setting, the guide louver will swing between W and D. There are 7 kinds of swing states of
guide louver: There are position L, A, B, C, D, and it swings and stops between L and D ( angle between L and D is equiangular).
Upon stop of unit, the guide louver will close to position O. Swing action is valid only when swing command is set and indoor fan is
running.
Note: If the position is set between L and B, A and C or B and D by remote controller, the guide louver will swing between L and D.
degree
L
A
B
C
D
(9)Display
Running icon and Mode icon
Upon energization, the unit will display all icons. Under standby state, running indicating icon is displayed in red. If the unit is started
by remote controller, running indicating icon gives off light; Meanwhile, the present setting running mode icon will be displayed(mode
LED: cooling, heating and dry mode). If the light button is turned off, all icons display will be closed.
Dual-8 Display
After starting the unit for the first time, the nixie tube will display present setting temperature in default (16-30 ) the nixie tube will
default to display the preset temperature. When displaying setting temperature signal is received, the nixie tube will display setting
temp. If displaying ambient temperature signal is received, the nixie tube will display present indoor ambient temperature. If other
states are set by remote controller, the display will keep previous. If remote controller receives valid signal during displaying ambient
temperature, ambient temperature will be displayed after setting temperature is displayed for 5s. F1 is displayed for ambient
temperature sensor malfunction, F2 for tube temp sensor malfunction of indoor unit and C5 for jumper cap has malfunction.
Some models: The remote controller will display present setting temp when this display is set. The controller will display ambient
temp for 5s and then setting temp only when indoor ambient temp displaying state is switched from other displaying states by
remote controller.
(10)Locked protection to PG motor
When starting the fan, if motor’s rotational speed is slow for a period of time, the unit will display Locked and stop running to avoid
auto protection for motor. If the unit is on currently, error code H6 will be displayed by the dual-8 nixie tube. If the unit is off currently,
this locked malfunction information won’t be displayed.
(11)Power-off memory
Memory content includes mode, up&down swing, light, setting temp and setting fan speed.
Upon power failure, the unit after power recovery will automatically start to run according to memory content. The system, last
remote-control command without timer setting, will memorize the last remote-control signal and run according to it. If the last remote
controller command has general timer function and the system is de-energized before setting time, the system will memorize the last
timer function in remote controller command after re-energization and time will be recalculated. If there is function in the last remote
controller command but setting time has reached, the system will act as timer on/off setting before de-energization. After
re-energization, the system memorizes the running states before power failure without timer action.
Clock timer can not be memorized.
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outlet pipe of
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earth connection?
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No. Malfunction Name
Error
Code
Display Method of Indoor Unit
Indicator lamp(During blinking,ON for
0.5S and OFF for 0.5S)
A/C Status
Operation
COOL
HEAT Lamp
Lamp.
Lamp.
The unit will stop operation
as it reaches the temperature
point.During cooling and drying
OFF 3S
operation, except indoor fan
and blinks
operates,other loads (such as
once
compressor,outdoor fan,4-way
valve) stop operation; During
heating operation, the complete
unit stops operation.
1
Indoor ambient.
temperature
sensor is open/
short-circuited
F1
2
Indoor evaporator
temperature.
sensor is open/
short-circuited
F2
3
PG motor (indoor
fan motor)does
not operate
H6
OFF 3S and
blinks 11
times
4
Malfunction
protection of
jumper cap
C5
OFF 3S and
blinks 15
times
5
PG motor(indoor
fan)circuit
malfunction
by zero cross
detection
U8
OFF 3S and
blinks 17
times
OFF 3S
and blinks
twice
Possible Causes
1.The wiring terminal between indoor
ambient temperature sensor and controller
is loosened or poorly contacted;
2.There’s short circuit due to trip-over of the
parts on controller;
3.Indoor ambient temperature sensor is
damaged(Please check it by referring to the
resistance table for temperature sensor)
4.Main board is broken
1.The wiring terminal between indoor
The unit will stop operation
evaporator temperature sensor and
as it reaches the temperature.
controller is loosened or poorly contacted;
point.During cooling and drying
2.There’s short circuit due to the trip-over of.
operation,except indoor fan
the parts on controller;
operates,other loads stop
3.Indoor evaporator temperature sensor is
operation;During heating
damaged (Please check it by referring to the
operation,the complete unit
resistance table for temperature sensor).
stops operation
4.Main board is broken.
1.The feedback terminal of PG motor is not
connected tightly.
Indoor fan, outdoor fan,
2.The control terminal of PG motor is not
compressor and electric heat
connected tightly.
tube stop operation 2 minutes
3.Fan blade rotates unsmoothly due to
later,4-way valve stops;
improper installation.
horizontal louver stops at the
4.Motor is not installed properly and tightly.
current position.
5.Motor is damaged.
6.Controller is damaged.
1.There’s not jumper cap on the controller.
Operation of remote controller. 2.Jumper cap is not inserted properly and
or control panel is available, but tightly.
the unit won’t act.
3.Jumper cap is damaged.
4..Controller is damaged.
Operation of remote controller
or control panel is available,but
the unit won’t act.
1.Controller is damaged.
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Start
Is the wiring
terminal between temperature
sensor and the controller loosened or
poorly contacted?
yes
Insert the temperature
sensor tightly
no
no
Is there short circuit due to trip over
Malfunction is
eliminated.
yes
of the parts
Make the parts upright
no
no
Is the temperature
sensor normal according to the
Resistance Table?
Malfunction is
eliminated.
yes
no
Replace it with a
temperature sensor
of the same model
yes
no
Malfunction is
removed.
Replace the controller with
one of the same model
yes
End
yes
7URXEOHVKRRWLQJ
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Possible causes:
1. There is no jumper cap on the controller;
2. Jumper cap is not inserted properly and tightly;
3. Jumper cap is damaged;
4. Controller is damaged.
See the
chart below:
C5 is displayed
on the unit.
Is there jumper cap on the
controller?
Yes
No
Install a matching
jumper cap.
Is the
malfunction
eliminated?
No
Is the jumper cap inserted
incorrectly or improperly?
No
No
Yes
Re-insert the jumper
cap
Is the
malfunction
eliminated?
Yes
Replace the jumper
cap
Is the
malfunction
eliminated?
Yes
Yes
No
The mainboard is
defined abnormal
replace it
End
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Possible causes:
1. Fan motor is locked;
2. The.feedback.terminal of PG motor is not connected tightly;
3. The control terminal of PG motor is not connected tightly;
4. Motor is damaged;
5. Malfunction of the rotation speed detection circuit of the mainboard.
See the
chart below:
“H6”is
displayed on
the unit.
Stir the fan blade
with a hand when
the unit is DE ENERGIZED.
Does the
blade rotate
unsmoothly?
Yes
Reinstall the motor
and the blade to
make it rotate
smoothly.
Is the
malfunction
eliminated?
No
No
Is the
feedback
terminal of PG
motor loose?
Yes
Insert the feedback
terminal tightly .
Is the
malfunction
eliminated?
No No
Is the
control terminal
of PG motor
loose?
Yes
Insert the control
terminal tightly.
Is the
malfunction
eliminated?
No
No
Re-energize
to turn on the unit;
measure within 1 min after the
louvers are opened whether the output
voltage on the control terminal
of the PG motor is over 50V?
No
No
Mainboard
malfunction;
Replace it.
Yes
Yes
Yes
Replace the fan
motor.
Is the
malfunction
eliminated?
Yes
End
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“ U8” is
displayed on
the unit.
Re-energize 1
minute after deerergization
Is “ U8” still
displayed ?
No
The unit returns to normal
.
Conclusion: U8 is displayed due to
instant energization after deenergization while the capacitor
discharges slowly
.
Yes
The zero - cross detection
circuit of the mainboard is
defined abnormal
. Replace
the mainboard.
M alfunction is
eliminated.
7URXEOHVKRRWLQJ
Appendix 1: Resistance Table for Indoor and Outdoor Ambient Temperature Sensors (15K)
Temp.
˄ć˅
˄kΩ˅
Resistance
Temp.
˄ć˅
Resistance˄kΩ˅
˄ć˅
Temp.
˄kΩ˅
Resistance
Temp.
˄ć˅
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
0.678
-3
57.18
36
9.382
75
2.206
114
-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
7URXEOHVKRRWLQJ
Temp.˄ć˅
-19
-18
-17
-16
-15
-14
-13
-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Resistance˄kΩ˅
181.4
171.4
162.1
153.3
145
137.2
129.9
123
116.5
110.3
104.6
99.13
94
89.17
84.61
80.31
76.24
72.41
68.79
65.37
62.13
59.08
56.19
53.46
50.87
48.42
46.11
43.92
41.84
39.87
38.01
36.24
34.57
32.98
31.47
30.04
28.68
27.39
26.17
Appendix 2: Resistance Table for Indoor and Outdoor Tube Temperature Sensor (20K)
Temp.˄ć˅ Resistance˄kΩ˅ Temp. ˄ć˅ Resistance˄kΩ˅ Temp.˄ć˅
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
25.01
23.9
22.85
21.85
20.9
20
19.14
18.13
17.55
16.8
16.1
15.43
14.79
14.18
13.59
13.04
12.51
12
11.52
11.06
10.62
10.2
9.803
9.42
9.054
8.705
8.37
8.051
7.745
7.453
7.173
6.905
6.648
6.403
6.167
5.942
5.726
5.519
5.32
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
5.13
4.948
4.773
4.605
4.443
4.289
4.14
3.998
3.861
3.729
3.603
3.481
3.364
3.252
3.144
3.04
2.94
2.844
2.752
2.663
2.577
2.495
2.415
2.339
2.265
2.194
2.125
2.059
1.996
1.934
1.875
1.818
1.736
1.71
1.658
1.609
1.561
1.515
1.47
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
Resistance
˄kΩ˅
1.427
1.386
1.346
1.307
1.269
1.233
1.198
1.164
1.131
1.099
1.069
1.039
1.01
0.983
0.956
0.93
0.904
0.88
0.856
0.833
0.811
0.77
0.769
0.746
0.729
0.71
0.692
0.674
0.658
0.64
0.623
0.607
0.592
0.577
0.563
0.549
0.535
0.521
0.509
7URXEOHVKRRWLQJ
Temp.˄ć˅
-29
-28
-27
-26
-25
-24
-23
-22
-21
-20
-19
-18
-17
-16
-15
-14
-13
-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
Appendix 3: Resistance Table for Outdoor Discharge Temperature Sensor (50K)
Resistance
Resistance˄kΩ˅ Temp.˄ć˅
˄kΩ˅ Temp. ˄ć˅ Resistance˄kΩ˅ Temp.˄ć˅
853.5
799.8
750
703.8
660.8
620.8
580.6
548.9
516.6
486.5
458.3
432
407.4
384.5
362.9
342.8
323.9
306.2
289.6
274
259.3
245.6
232.6
220.5
209
198.3
199.1
178.5
169.5
161
153
145.4
138.3
131.5
125.1
119.1
113.4
108
102.8
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Note: The information above is for reference only.
98
93.42
89.07
84.95
81.05
77.35
73.83
70.5
67.34
64.33
61.48
58.77
56.19
53.74
51.41
49.19
47.08
45.07
43.16
41.34
39.61
37.96
36.38
34.88
33.45
32.09
30.79
29.54
28.36
27.23
26.15
25.11
24.13
23.19
22.29
21.43
20.6
19.81
19.06
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
18.34
17.65
16.99
16.36
15.75
15.17
14.62
14.09
13.58
13.09
12.62
12.17
11.74
11.32
10.93
10.54
10.18
9.827
9.489
9.165
8.854
8.555
8.268
7.991
7.726
7.47
7.224
6.998
6.761
6.542
6.331
6.129
5.933
5.746
5.565
5.39
5.222
5.06
4.904
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
Resistance˄kΩ˅
4.754
4.609
4.469
4.334
4.204
4.079
3.958
3.841
3.728
3.619
3.514
3.413
3.315
3.22
3.129
3.04
2.955
2.872
2.792
2.715
2.64
2.568
2.498
2.431
2.365
2.302
2.241
2.182
2.124
2.069
2.015
1.963
1.912
1.863
1.816
1.77
1.725
1.682
1.64
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1.Remove the filter
1
Open the front panel.
panel
2
Loosen the clasp of the filter.
clasp
3
Take out the filter.
filter
2.Remove
the horizontal louver
1
Remove the axile bush on the horizontal
louver.
axile bush
5HPRYDO3URFHGXUH
2
Pull the horizontal louver outward
to remove it.
horizontal louver
3. Remove the panel
Push the rotor shaft on both sides of the
panel to make it separate from the groove.
rotor shaft
Remove the panel.
panel
4.Remove the electric box cover
1
Loosen the screws of the electric box
cover.
screw
5HPRYDO3URFHGXUH
electric box cover 2
2
Remove the electric box cover.
5.Remove the front case
1
Open the screw cap on the front case.
Remove the screws fixing the front case.
screw
clasps
2
Loosen the clasps of the front case.
left
front case
3
middle
right
Remove the front case.
5HPRYDO3URFHGXUH
6.Remove the vertical louver
1
Loosen the clasp connecting the vertical
louver and bottom case subassembly.
clasp
2
Remove the vertical louver.
vertical louver
7.Remove the electric box
heat exchanger
thermistor
1
Disconnect the indoor tube temperature
sensor.
screw
2
Remove the screws of the electric box.
screws
3
Remove the screws at the joint of the
ground wire and evaporator.
ground wire
5HPRYDO3URFHGXUH
4
Loosen the clasp at the joint of the electric
box cover and the electric box.
clasp
fan motor signal wire
5
6
Disconnect the plug of the motor.
Disconnect the plug of step motor.
plug of step motor
7
Remove the 2 screws of the display.
screws
electric box
8
Remove the electric box.
5HPRYDO3URFHGXUH
8.Remove pipe clamp of connecting pipe
pipe clamp
auxiliary piping
screws
1
Remove the screws of the pipe clamp of
connecting pipe.
pipe clamp
2
Remove pipe clamp of connecting pipe.
9.Remove the evaporator
1
Remove the screws at the joint of the
evaporator and bottom case.
screws
auxiliary piping
2
Adjust the pipe slightly to separate the
connecting pipe and the evaporator.
5HPRYDO3URFHGXUH
heat
3
Remove the evaporator.
exchanger
10.Remove motor and cross flow fan
step motor
1
Remove the screw of the step motor and
remove the step motor.
motor clamp
2
Remove the screw of the motor clamp.
Remove the press plate.
5HPRYDO3URFHGXUH
cross flow blade
motor
3
Remove the cross flow blade and motor.
O-gasket
sub-assy of
bearing
ring of
bearing
4
Remove the rubber cushion of the
bearing.
cross flow blade
5
Remove the screws at the joint of the
cross flow blade and the motor. Take
down the motor.
motor
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1. Remove big handle
a
Before disassembly.
b
Remove the screw fixing the big handle.
Remove the big handle.
handle
2. Remove top panel
top panel
Remove the 3 screws connecting the top
panel with the front panel and the right side
panel. Remove the top cover.
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3.Remove front grille and front panel
a
Remove the 2 screws connecting the front grille
with front panel. Remove front grille.
front grille
b
Remove the 5 screws connecting the front panel
with the chassis and the motor support. Remove
the front panel.
front panel
4. Remove right side panel
Remove the 6 screws connecting the right side
panel with the chassis, the valve support and the
electric box. Remove the right side panel.
right side panel
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5. Remove axial flow blade and motor
a
Remove the nut on the blade. Remove the axial
flow blade.
axial flow blade
motor support
b
Remove the tapping screws fixing the motor;
disconnect the leading wire insert of the motor.
Remove the motor. Remove the tapping screws
fixing the motor support. Lift the motor support to
remove it.
motor
6. Remove electric box
electric box
Remove screws fixing the electric box subassembly.
Loosen the wire bundle; unplug the wiring terminals
and lift the electric box to remove it.
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7. Remove isolation sheet
Remove the 3 screws fixing the isolation sheet.
Remove the isolation sheet.
isolation sheet
8. Remove soundproof sponge
Remove the soundproof sponge wrapping the
compressor.
soundproof sponge
9. Remove magnet moil
Remove the screw fixing the magnet moil.
Remove the coil.
magnet moil
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10. Remove compressor
a
Remove the 2 screws fixing the gas valve. Unsolder
the welding joint connecting the gas valve and the
air-return pipe. Remove the gas valve.
(NOTE: when unsoldering, wrap the gas valve with
a wet cloth completely to avoid damage to the valve
caused by high temperature.)
Remove the 2 screws fixing the liquid valve. Unsolder
the welding joint connecting the liquid valve and the
Y-type pipe. Remove the liquid valve.
(NOTE: Discharge the refrigerant completely before
unsoldering.)
liquid valve
gas valve
4-way valve
b
Unsolder welding joint connecting the capillary, the
valve and the outlet pipe of condenser to remove the
capillary. Do not block the capillary with welding slag
during unsoldering. Unsolder the pipes connected to
the compressor. Unsolder the welding joint
connecting the 4-way valve to remove it.
capillary
c
Remove the 3 foot nuts on the compressor.
Remove the compressor.
compressor
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1. Before disassembly
2. Remove big handle
Remove the connection screw fixing the big handle
and then remove the handle.
big handle
3. Remove top panel
top panel
Remove connection screws connecting the top
panel with the front panel and the right side plate,
and then remove the top panel.
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4. Remove front grille
Remove connection screws between the front
grille and the front panel. Then remove the front
grille.
front grille
5. Remove front panel
Remove connection screws connecting the front
panel with the chassis and the motor support,
and then remove the front panel.
front panel
6. Remove right side plate
right side plate
Remove connection screws connecting the
right side plate with the chassis, the valve
support and the electric box. Then remove
the right side plate.
7. Remove axial flow blade
Remove the nut on the blade and then remove
the axial flow blade.
axial flow blade
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8. Remove motor and motor support
motor support
Remove the 4 tapping screws fixing the motor and
disconnect the leading wire insert of the motor. Then
remove the motor.
Remove the 2 tapping screws fixing the motor
support and lift the motor support to remove it.
motor
9. Remove electric box
electric box
Remove screws fixing the electric box subassembly;
loosen the wire bundle and unplug the wiring
terminals. Then lift the electric box to remove it.
10. Remove isolation sheet
Remove the 3 screws fixing the isolation sheet and
then remove the isolation sheet.
isolation sheet
11. Remove soundproof sponge
Remove the soundproof sponge wrapping the
compressor.
soundproof sponge
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12. Remove magnet coil
magnet coil
Remove the screw fixing the magnet coil and then
remove the coil.
13. Remove valves and 4-way valve subassembly
4-way
valve
Unsolder welding joint connecting the capillary,
the valve and the outlet pipe of condenser to
remove the capillary. Do not block the capillary
with welding slag during unsoldering.
Remove the 2 screws fixing the gas valve and
unsolder the welding point between the gas valve
and the air-return pipe to remove the gas valve.
(NOTE: Discharge the refrigerant completely
before unsoldering; when unsoldering, wrap the
gas valve with a wet cloth completely to avoid
damage to the valve caused by high temperature).
Remove the 2 screws fixing the liquid valve and
unsolder the welding joint connecting the liquid
valve to the Y-type pipe to remove the liquid valve.
Unsolder the welding joint connecting the 4-way
valve, the compressor and the condenser to
remove the 4-way valve.
14. Remove compressor
liquid valve
gas valve
foot nuts
compressor
Remove the foot nuts on the compressor and then
remove the compressor.
JF00300988
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
Add: West Jinji Rd, Qianshan, Zhuhai, Guangdong, China, 519070
Tel: (+86-756) 8522218
Fax: (+86-756) 8669426
E-mail: gree @gree. com. cn www .gree. com
For continuous improvement in the products, Gree reserves the right to modidy the product specification and appearance in this manual
without notice and without incurring any obligations.