Gree GK-H03NH3AS User manual

ROOFTOPPACKAGEDSERVICEMANUAL
CAPACITY RANGE:10.5~34.0kW (35800~116000Btu/h)
OPERATION RANGE:COOLING:18~48°C
HEATING:-10~24°C

Contents
PRODUCT INTRODUCTION ......................................................................................2
1 MODELS LIST .........................................................................................................2
2 NOMENCLATURE ...................................................................................................2
3 FUNCTION...............................................................................................................3
4 PRODUCT DATA .....................................................................................................3
4.1 PRODUCT DATAAT RATED CONDITION.....................................................................3
4.2 OPERATION RANGE.....................................................................................................6
4.3 ELECTRICAL DATA .......................................................................................................6
5 PIPING DIAGRAM...................................................................................................6
UNITS CONTROL.......................................................................................................8
1 OPERATION FLOWCHART ....................................................................................8
1.1 COOLING OPERATION................................................................................................. 8
1.2 HEATING OPERATION..................................................................................................9
2 WIRELESS REMOTE CONTROLLER...................................................................10
2.1 OPERATION AND DISPLAY VIEW.............................................................................. 10
3 WIRED CONTROLLER..........................................................................................12
3.1 DISPLAY VIEW ............................................................................................................ 12
3.2 OPERATION VIEW ...................................................................................................... 13
4 OPERATION INSTRUCTIONS OF SPECIAL FUNCTIONS ..................................15
4.1 Setting of Filter Clean Reminder Function ...................................................................15
4.2 Lock Function...............................................................................................................16
4.3 Memory Function..........................................................................................................16
4.4 Door Control Function .................................................................................................. 16
4.5 Switch between Fahrenheit and Centigrade ................................................................ 17
4.6 Enquiry of Ambient Temperature.................................................................................. 17
4.7 Enquiry of Historical Malfunction..................................................................................17
4.8 Debugging Function ..................................................................................................... 17
5 INSTALLATION OF WIRED CONTROLLER.........................................................21
5.1 Standard Accessories...................................................................................................21
5.2 Installation Position and Requirement.......................................................................... 21
5.3 Installation of Wired Controller .....................................................................................22
5.4 Removal of Wired Controller ........................................................................................ 22
6 TROUBLESHOOTING...........................................................................................23

6.1 DISPLAY OF ERROR CODE....................................................................................... 23
INSTALLATION.........................................................................................................26
1 UNITS INSTALL.....................................................................................................26
1.1 INSTALLATION POSITIONS........................................................................................26
1.2 MATTERS NEED ATTENTION.....................................................................................26
1.3 DIMENSION.................................................................................................................29
2 DRAIN PIPING WORK...........................................................................................31
2.1 INSTALLATION PROCEDURE .................................................................................... 31
2.2 MATTERS OF ATTENTION..........................................................................................32
3 ELECTRIC WIRING WORK...................................................................................32
3.1 WIRING PRINCIPLE.................................................................................................... 32
3.2 ELECTRIC WIRING DESIGN ...................................................................................... 34
MAINTENANCE........................................................................................................36
1 MALFUNCTION TABLE.........................................................................................36
1.1 MAIN CONTROL MALFUNCTION...............................................................................36
1.2 DESCRIPTION OF DRIVE MALFUNCTION................................................................ 38
2 FLOW CHART OF TROUBLESHOOTING............................................................39
2.1 TROUBLESHOOTING FLOW CHART OF MAIN CONTROL MALFUNCTION ........... 39
2.2 TROUBLESHOOTING FLOW CHART OF DRIVE MALFUNCTION................................. 46
3 WIRING DIAGRAM................................................................................................49
4 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS ....................53
5 EXPLODED VIEWS AND SPARE PART LIST ......................................................80

GREE ROOFTOP PACKAGED SERVICE MANUAL
1
PRODUCT

GREE ROOFTOP PACKAGED SERVICE MANUAL
2
PRODUCT INTRODUCTION
1 MODELS LIST
Nominal
Capacity
(Ton)
Model
Power Supply
(V, Ph, Hz)
Appearance
Refrigerant
Model Name
Product Code
3
R410A
GK-H03NH3AS
EJ51000660
220~240V, 1Ph,
50/60Hz
5.5
R410A
GK-H5.5NH3AS
EJ51000740
220~240V, 1Ph,
50/60Hz
5.5
R410A
GK-H5.5NH3AF
EJ51000650
220~240V, 3Ph,
60Hz
10
R410A
GK-H10NH3AF
EJ51000710
220~240V, 3Ph,
60Hz
Notes:
①Above pictures may be different from actual model.
②1Ton =12000Btu/h = 3.517kW.
2 NOMENCLATURE
GK
－
H
03
N
H
3
A
S
1
2
3
4
5
6
7
8
NO.
Description
Options
1
Product Category
GK=GREE Rooftop Packaged Air-condition
2
Product Function Code
C = Cooling only type;
H = Heat pump type.
3
Cooling/Heating Capacity
03=3Ton;
5.5=5.5Ton......
4
Operating Condition
T=T3 Condition;
N=T1 Condition.
5
Airflow Options
H=Horizontal;
C=Convertible.
6
Refrigerant Options
1=R22;
2=R407C;
3=R410a;

GREE ROOFTOP PACKAGED SERVICE MANUAL
3
NO.
Description
Options
7
Design Code
A,B,C......
8
Voltage Options
S=220-240V,50/60Hz,1Ph ; F=220-240V,60Hz,3Ph
3 FUNCTION
Function
Description
OPERATING EFFICIENCY
All units provide high operating efficiencies and have a minimum SEER of 16.0 or above.
EXCLUSIVE COIL DESIGN
Grooved copper tubes and enhanced aluminum fin construction improves heat transfer for
maximum efficiency and durability.
TOP DISCHARGE
The top discharge condenser fan does not disrupt neighboring areas and does not dry-out
vegetation surrounding the unit. The warm air from the top mounted fan is blown up away
from the structure and any landscaping. This allows compact location on multi-unit
applications.
LOW OPERATING SOUND
LEVEL
The upward air flow carries the normal operating noise up and away from the living area.
The rigid and unique shock absorption structure greatly reduces the vibration and
effectively isolates motor sound.
SPACE SAVING
With compact and unitary structure, the unit can be connected and assembled at field,
which is in favor of transport and installation and saves indoor space.
4 PRODUCT DATA
4.1 PRODUCT DATA AT RATED CONDITION
Model
GK-H03NH3AS
GK-H5.5NH3AS
Total
Capacity
Cooling
Btu/h
35800(13650-42660)
66500(20500-66500)
kW
10.5(4.0-12.5)
19.5(6.0-19.5)
Heating
Btu/h
39250(17070-46100)
70000(27300-73400)
kW
11.5(5.0-13.5)
20.5(8.0-21.5)
Electrical
Data
Power supply
V-Hz-Ph
220-240V-50/60Hz-1Ph
220-240V-50/60Hz-1Ph
Power input
Cooling
kW
3.1
6.8
Heating
kW
3.2
5.8
Current input
Cooling
A
13.5
30.0
Heating
A
14.0
25.5
SEER
Btu/(W.h)
20
16
Sound Pressure Level
dB(A)
61
63
Refrigerant
Type/weight
－
R410A/3.5kg
R410A/5.0kg
Air Flow Volume
CFM
1177
1942
m³/h
2000
3300
External Static Pressure
Rated/Range
Pa
50
60
InWg
0.2
0.24
Dehumidifying Volume
l/h
2.63
7.2
Evaporator
Side
Fan motor
Drive Type
-
Direct Drive
Direct Drive
Power Output
HP
4/15
1
Fan
Type
-
Centrifugal
Centrifugal
Quantity
-
2
2
Motor Speed
rpm
1100
1080
Evaporator
Material
-
Copper tube-
Aluminum fin
Copper tube-
Aluminum fin
Face Area
sq.ft
4.31
4.31
m2
0.4
0.4

GREE ROOFTOP PACKAGED SERVICE MANUAL
4
Model
GK-H03NH3AS
GK-H5.5NH3AS
Fins per Inch(FPI)
-
16
16
Drain Connection Size
Inch
0.80×0.047
0.80×0.047
Condenser
Side
Compressor
Type
-
Inverter Rotary
Inverter Rotary
Quantity
-
1
1
Fan motor
Drive Type
-
Direct Drive
Direct Drive
Power Output
HP
1
1
Fan
Type
-
Axial-flow
Axial-flow
Quantity
-
1
1
Condenser
Material
-
Copper tube
-Aluminum fin
Copper tube
-Aluminum fin
Face Area
sq.ft
13.89
13.89
m2
1.29
1.29
Fins per Inch(FPI)
-
16
16
Permissible Excessive Operating
Pressure for the Discharge Side
Mpa
4.4
4.4
Permissible Excessive Operating
Pressure for the Suction Side
Mpa
2.5
2.5
Operation
temp
Cooling
°C
18-48
18-48
Heating
°C
-10-24
-10-24
Filter
-
PP
PP
Dimension
Outline dimension
(W×D×H)
mm
1450×1120×815
1450×1120×815
Package dimension
(W×D×H)
mm
1463×1133×860
1463×1133×860
Weight
Net weight
kg
206
268
Gross weight
kg
227
289
Loading quantity
20'GP
16
16
40'GP
32
32
40'HQ
48
48
Model
GK-H5.5NH3AF
GK-H10NH3AF
Total Capacity
Cooling
Btu/h
71700(20500-75100)
116000(34100-119400)
kW
21.0(6.0-22.0)
34.0(10.0-35.0)
Heating
Btu/h
75100(27300-78500)
119400(37500-122800)
kW
22.0(8.0-23.0)
35.0(11.0-36.0)
Electrical Data
Power supply
V-Hz-Ph
220-240V-60Hz-3Ph
220-240V-60Hz-3Ph
Power input
Cooling
kW
7.9
13.7
Heating
kW
6.6
11.5
Current input
Cooling
A
21.0
36.0
Heating
A
18.0
30.0
SEER
Btu/(W.h)
16
16
Sound Pressure Level
dB(A)
63
72
Refrigerant
Type/weight
－
R410A/5.0kg
R410A/10.0kg
Air Flow Volume
CFM
1942
3413
m³/h
3300
5800
External Static Pressure
Rated/Range
Pa
60
90
InWg
0.24
0.36
Dehumidifying Volume
l/h
7.73
11.08
Evaporator Side
Fan motor
Drive Type
-
Direct Drive
Direct Drive
Power Output
HP
1
1

GREE ROOFTOP PACKAGED SERVICE MANUAL
5
Model
GK-H5.5NH3AF
GK-H10NH3AF
Fan
Type
-
Centrifugal
Centrifugal
Quantity
-
2
2
Motor Speed
rpm
1080
1400
Evaporator
Material
-
Copper tube-
Aluminum fin
Copper tube-
Aluminum fin
Face Area
sq.ft
4.31
7.00
m2
0.4
0.65
Fins per
Inch(FPI)
-
16
16
Drain Connection Size
Inch
0.80×0.047
0.80×0.047
Condenser Side
Compressor
Type
-
Inverter Rotary
Inverter Rotary
Quantity
-
1
1
Fan motor
Drive Type
-
Direct Drive
Direct Drive
Power Output
HP
1
1
Fan
Type
-
Axial-flow
Axial-flow
Quantity
-
1
1
Condenser
Material
-
Copper tube
-Aluminum fin
Copper tube
-Aluminum fin
Face Area
sq.ft
13.89
25.19
m2
1.29
2.34
Fins per
Inch(FPI)
-
16
16
Permissible Excessive Operating
Pressure for the Discharge Side
Mpa
4.4
4.4
Permissible Excessive Operating
Pressure for the Suction Side
Mpa
2.5
2.5
Operation
temp
Cooling
°C
18-48
18-48
Heating
°C
-10-24
-10-24
Filter
-
PP
PP
Dimension
Outline
dimension
(W×D×H)
mm
1450×1120×815
1450×1120×1215
Package
dimension
(W×D×H)
mm
1463×1133×860
1463×1133×1260
Weight
Net weight
kg
268
339
Gross weight
kg
289
360
Loading quantity
20'GP
16
8
40'GP
32
16
40'HQ
48
32
Notes:
①The cooling capacity stated above is measured under following conditions:
Indoor Conditions: 27°C DB/19°C WB (81°F DB/67°F WB);
Outdoor Conditions: 35°C DB/24°C WB (95°F DB/76°F WB).
②The air volume is measured at the relevant standard external static pressure.
③The technical parameters are changed along with the products improvement; please refer to the
nameplate of the unit for actual data.
④Above data is subject to change without notice.

GREE ROOFTOP PACKAGED SERVICE MANUAL
6
4.2 OPERATION RANGE
GK-H03NH3AS、GK-H5.5NH3AS 、GK-H5.5NH3AF、GK-H10NH3AF
Item
Outdoor Condition (DB °C)
Cooling
18~48
Heating
-10~24
4.3 ELECTRICAL DATA
Model
Compressor
Condenser
Fan Motors
Supply Blower
Motor
Breaker
Capacity
Min. Power
Supply Cord
Power Supply
Qty.
RLA
FLA
FLA
V/Ph/Hz
−
A
A
A
A
mm2
GK-H03NH3AS
220-240V, 1Ph,50/60Hz
1
13.0
1.9
1.8
25
4.0
GK-H5.5NH3AS
220-240V, 1Ph,50/60Hz
1
19.0
2.5
2.8
40
10.0
GK-H5.5NH3AF
220-240V, 3Ph,60Hz
1
28.0
2.2
2.8
40
10.0
GK-H10NH3AF
220-240V, 3Ph,60Hz
1
36.0
3.5
7.5
50
10.0
5 PIPING DIAGRAM
(Refrigerant flowing direction is shown as the arrow)

GREE ROOFTOP PACKAGED SERVICE MANUAL
7
CONTROL

GREE ROOFTOP PACKAGED SERVICE MANUAL
8
UNITS CONTROL
1 OPERATION FLOWCHART
1.1 COOLING OPERATION
Satisfying open
Comp. condition
Temp of indoor
≤Set temp
Comp. stop
for 3 min NY
N
Y
Y
N
Open unit running at
cool mode
Indoor fan run
Comp. and outdoor
fan run
Comp. and
outdoor fan stop
Power
On

GREE ROOFTOP PACKAGED SERVICE MANUAL
9
1.2 HEATING OPERATION

GREE ROOFTOP PACKAGED SERVICE MANUAL
10
2 WIRELESS REMOTE CONTROLLER
Notes:
The wireless remote controller is an Optional Fitting
2.1 OPERATION AND DISPLAY VIEW
Table 2-2-1 Operation instruction of wireless remote controller
No.
Name
Function Description
Signal
transmitter
Signal transmitter
ON/OFF
button
Press this button and the unit will be turned on; press it once more, and the unit will be turned off.
When turning off the unit, the Sleep function will be canceled, but the presetting time is still remained.
MODE
button
By pressing this button, Auto, Cool, Dry, Fan, Heat mode can be selected circularly. Auto mode is
default after power on. Under the Auto mode, the setting temperature will not be displayed; Under the
Heat mode, the initial value is 28°C (82°F); Under other modes, the initial value is 25°C(77°F).
AUTO; COOL; DRY; FAN; HEAT (only for cooling and heating unit)
- button
Preset temperature can be decreased by pressing this button. Pressing and holding this button for
more than 2 seconds can make the temperature changed quickly until release this button and then
transmit this order. The temperature adjustment is unavailable under the Auto mode, but the order can
be sent by pressing this button. Centigrade setting range: 16-30; Fahrenheit scale setting range 61-86.
+ button
Preset temperature can be increased by pressing this button. Pressing and holding this button for
more than 2 seconds can make the temperature changed quickly until release the button and then
transmit this order. The temperature adjustment is unavailable under theAuto mode, but the order can
be sent by pressing this button. Centigrade setting range: 16-30; Fahrenheit scale setting range 61-86.

GREE ROOFTOP PACKAGED SERVICE MANUAL
11
No.
Name
Function Description
FAN button
By pressing this button, Auto, Low, Middle, High speed can be circularly selected. After power on,Auto
fan speed is default.
Low speed
Middle speed
High speed
Note: Under the DRY mode, the fan will be kept running at the low speed and the fan speed isn't
adjustable.
SWING
UP/DOWN
button
Press this button to set up the swing angle, which circularly changes as below:
When the guide louver starts to swing up and down, if SWING functions is canceled, the air guide
louver will stop and remains at the current position.
Indicates the guide louver swings up and down among those five directions.(Simplified SWING
function applicable for some Fan Coil Units: When the wireless remote controller is energized initially
with the unit under the OFF status, it should be set by pressing the + button and the SWING button
simultaneously, with the symbol blinking twice. Then, after the unit is turned on, this function can
be activated by pressing the SWING button, with the displayed symbol indicating swing function is
on and without this displayed symbol indicating swing function is off.)
CLOCK
button
By pressing this button, the clock is allowed to be set, with blinking, and then press the +/- button
to adjust the clock within 5 seconds. If the +/-button is pressed down constantly for more than 2
seconds, the clock setting will be increased or decreased 10 minutes every 0.5 seconds. After that,
another press on the CLOCK button accepts the setting. 12:00 is the default, when the wireless remote
controller is energized.
TIMER ON
button
When TIMER ON is activated, ON will blink while the symbol will disappear. Within 5 seconds it is
allowed to set the ON time by pressing the +/- button. Each press will make the time increase or
decrease one minute. Besides, the time can also be set by pressing the +/- button constantly. that is, in
the early 2.5 seconds, the time will increase/decrease quickly per single minute, and in the late 2.5, the
time will increase/decrease per ten minutes. After the desired time value is set, press TIENE ON again
to conform the setting within five seconds. After that, another press on TIMER ON will cancel the
setting. Prior to this setting, the clock shall be set to the actual time.
X-FAN
button
Pressing this button can activate or deactivate the X-FAN function. In Cool or Dry mode, by pressing
this button, if " " is displayed, it indicates the X-FAN function is activated. By repressing this button, if
" " disappears, it indicates the X-FAN function is deactivated. After energization, X-FAN OFF is
defaulted. If the unit is turned off, X-FAN can be deactivated but can't be activated.
TEMP
button
By pressing this button it is allowed to select displaying the indoor setting temperature or the indoor
ambient temperature.
Indoor setting temperature is default after the indoor unit is energized initially.
By pressing the TEMP button, when the temperature symbol is displayed, the indoor displayer will
show the indoor setting temperature; when is displayed, it will show the indoor ambient
temperature; when is invalidation, If current displays indoor ambient temperature, if received the
other remote control signal, it will display presetting temperature, 5s later, will back to display the
ambient temperature. (This function is applicable to partial of models)
TIMER OFF
button
By pressing this button it is available to go to the TIMER OFF setting state with the same setting
method as that of the TIMER ON, in which case the OFF symbol blinks.
TURBO
button
In the Cool or Heat mode, pressing this button can activate or deactivate the TURBO function. When
the TURBO function is activated, its symbol will be displayed; when the running mode or the fan
speed is changed, this function will be canceled automatically.(This function is applicable to partial of
models).
SLEEP
button
By pressing this button, Sleep On and Sleep Off can be selected. After powered on, Sleep Off is
defaulted. Once the unit is turned off, the Sleep function is canceled. When Sleep is set to On, the
symbol of SLEEP will display. Under the Fan and Auto modes, this function is not available.
LIGHT
button
Press this button to select LIGHT on or off in the displayer. When the LIGHT is set to on, the icon
will be displayed and the indicating light in the displayer will be on. When the LIGHT is set to off, the
icon will be disappeared and the indicating light in the displayer will be off.

GREE ROOFTOP PACKAGED SERVICE MANUAL
12
3 WIRED CONTROLLER
3.1 DISPLAY VIEW
Figure 2-3-1 Appearance of wired controller
Figure 2-3-2 LCD display of wired controller
Table 2-3-1 Instruction to LCD Display
No.
Display
Introduction
1
Auto
Automatic mode (under auto mode, the indoor unit will select its operating mode
according to the variation of room temperature)
2
Cool
Cooling mode
3
Dry
Dry mode
4
Fan
Fan mode
5
Heat
Heating mode

GREE ROOFTOP PACKAGED SERVICE MANUAL
13
No.
Display
Introduction
6
Sleep
Display when sleep function is set (only display sleep mode II)
7
Exchange
Display when air exchange function is set
8
Silent
Display when silent function is set (only display silent, noAT)
9
Health
Display when health function is set
10
Absent
Display when absent function is set
11
I-Demand
Display when I-DEMAND function is set
12
WIFI
WIFI function icon
13
Child-lock
Child-lock status, display when child-lock function is set
14
Up&down swing
Display when up and down swing function is set
15
Slave wired controller
Icon of slave wired controller, it will display when slave wired controller is set
16
Fan speed
The fan speed set currently (including auto, low, medium and low, medium,
medium and high, high, and turbo)
17
No card
No card in gate control system
18
Left&right swing
Display when left and right swing function is set
19
X-fan
Display when dry function is set
20
Temperature
It will display the setting temperature
21
E-heater
On/off switch of auxiliary heating
22
Memory
Memory status (After power failure and re-energizing the unit, it will resume to
ON/OFF status of unit before the power failure)
23
Clean
Filter washing reminder
24
Save
Display when energy-saving function is set
25
Defrost
Defrosting status
26
Timer
Display when timer status is set
27
Shield
Shielding status
3.2 OPERATION VIEW
3.2.1 Silk Screen of Buttons
Figure 2-3-3 Silk screen of buttons

GREE ROOFTOP PACKAGED SERVICE MANUAL
14
3.2.2 Instruction to Function of Buttons
Table 2-3-2 Instruction to buttons of wired controller
No.
Description
Functions
1
Swing/Enter
Function selection and canceling;
Press it for 5s to view the ambient temperature; press Mode button to
select viewing outdoor ambient temperature or indoor ambient
temperature.
2
Timer
Timer setting.
3
▲
Running temperature setting range of indoor unit: 16-30°C ;
Timer setting range: 0.5-24hr;
Setting of air function level;
Setting of energy-saving temperature;
Setting of cleaning class.
7
▼
4
Mode
Setting of auto/cooling/heating/fan/dry mode of indoor unit.
5
Function
Switch over among these functions of swing/air/sleep/health/
I-Demand/out/turbo/save/e-heater/X-fan/clean/quiet.
6
Fan
Setting of high/medium high/medium/medium low/low/auto fan speed.
8
On/Off
Turn on/off indoor unit.
4 Mode and
3 ▲
Memory function
Press Mode and ▲ buttons at the same time for 5s under off state of the unit
to Swing/Enter memory function (If memory function is set, indoor unit will
resume original setting state after power failure and then power recovery. If
not, indoor unit is defaulted to be off after power recovery. Ex-factory setting
of memory function is on).
3 ▲and
7 ▼
Lock
Upon startup of the unit without malfunction or under off state of the unit,
press ▲ and ▼ buttons at the same time for 5s to enter lock state. In this
case, any other buttons won’t respond when pressing. Repress ▲ and ▼
buttons for 5s to quit lock state.
4 Mode and
5 Function
Enquiry and
setting of address
of wired controller
Under off state of the unit, press Mode and Function buttons at the same time
for 5s to set the address.
5 Function and
2 Timer
Setting of project
parameters (More
details please
refer to the Notes)
Under off state of the unit, press Function and Timer buttons at the same time
for 5s to go to the debugging menu. Press Mode button to adjust the setting
items and press ▲ or ▼ buttons to set the actual value.
4 Mode and
7 ▼
Switch between
Fahrenheit and
Centigrade
Under off state of the unit, press Mode and ▼ buttons at the same time for 5s
to switch between Fahrenheit and Centigrade.
5 Function and
7 ▼
Viewing historical
malfunction
Continuously press Function and ▼ buttons for 5s to view historical
malfunction. Then press ▲ and ▼ buttons to adjust displayed contents. The
timer displaying position displays the sequence of malfunction and the
detailed error code. The 5th displayed malfunction is the last malfunction.
1 Swing/Enter
and
4 Mode
Setting of master
and slave wired
controller
Under off state of the unit, press Swing/Enter and Mode buttons at the same
time for 5s to set master and slave wired controller. Press ▲ or ▼ button to
adjust.
1 Swing/Enter
and 3 ▲
Swing angle
function
Under power-off status, press “Swing/Enter” button and “▲” button
simultaneously for 5 seconds, the up & down swing icon will flash, then switch
for simple swing and fixed swing is done.
Notes:
The following functions can be set through Function and Timer buttons: setting of ambient temperature
sensor, display setting of freeze protection error code, selecting of blowing residual heat of indoor unit,
selecting door control function.

GREE ROOFTOP PACKAGED SERVICE MANUAL
15
4 OPERATION INSTRUCTIONS OF
SPECIAL FUNCTIONS
4.1 Setting of Filter Clean Reminder Function
When unit is on, press Function button to switch to filter clean reminder function. The icon will
blink and then enter setting of filter clean reminder function. Timer zone displays the set pollution level and
you can press ▲or ▼button to adjust the level. Then press Swing/Enter button to turn on this function.
When filter clean reminder function is turned on, press Function button to switch to filter clean
reminder function. The icon will blink and press ▲or ▼button to adjust timer zone to display
“00”. Then press Swing/Enter button to cancel this function.
When setting the filter clean reminder function, timer zone will display 2 digits, of which the former
indicates the pollution degree of operating place and the latter indicates the accumulated operating time of
indoor unit. There are 4 types of situations:
(1) Clean Reminder is off (Timer zone shows “00”);
(2) Slight pollution: the former digit in timer zone shows 1 while the latter one shows 0, which indicates
the accumulated operating time is 5500hr. Each time the latter digit increases 1, the accumulated
operating time increases 500hr. When it reaches 9, it means the accumulated operating time is
10000hr;
(3) Medium pollution: the former digit in timer zone shows 2 while the latter one shows 0, which
indicates the accumulated operating time is 1400hr. Each time the latter digit increases 1, the
accumulated operating time increases 400hr. When it reaches 9, it means the accumulated
operating time is 5000hr;
(4) Heavy pollution: the former digit in timer zone shows 3 while the latter one shows 0, which
indicates the accumulated operating time is 100hr. Each time the latter digit increases 1, the
accumulated operating time increases 100hr. When it reaches 9, it means the accumulated
operating time is 1000hr;
The detailed pollution level and the corresponding time is as shown in Table 2-4below:
Table 2-4-1 Pollution level and corresponding time
Pollution Level
Accumulative
operating time (hour)
Pollution
Level
Accumulative
operating time (hour)
Pollution
Level
Accumulative
operating time (hour)
10
5500
20
1400
30
100
11
6000
21
1800
31
200
12
6500
22
2200
32
300
13
7000
23
2600
33
400
14
7500
24
3000
34
500
15
8000
25
3400
35
600
16
8500
26
3800
36
700
17
9000
27
4200
37
800
18
9500
28
4600
38
900
19
10000
29
5000
39
1000
If filter clean reminder function is turned on, the icon will be on.

GREE ROOFTOP PACKAGED SERVICE MANUAL
16
(1) If cleaning time is not reached, no mater the setting is changed or not, the accumulated operating
time won’t be recalculated when pressing Swing/Enter button;
(2) If cleaning time is reached, in unit on or off state, will blink every 0.5s for reminder. Press
Function button to switch to icon and press ▲and ▼button to adjust the level. Then press
Swing/Enter button, so the accumulated operating time won‟t be cleared (If the adjusted level is
higher than the present accumulated operating time, the icon won‟t blink any more; if the adjusted
level is lower than the present accumulated operating time, the icon will go on blinking).
(3) The only way to cancel filter clean reminder function is to press Function button to switch to filter
clean reminder function. The icon will blink and press ▲or ▼button to adjust timer zone
to display “00”. In this case, the accumulated operating time will be cleared.
4.2 Lock Function
When unit is turned on normally or turned off, pressing ▲and ▼buttons at the same time for 5s will
turn on Lock function. LCD will display . Pressing ▲and ▼buttons at the same time for 5s to turn off
this function.
When Lock function is turned on, any other buttons won‟t respond when pressing. The function can be
memorized after power failure and then power recovery.
4.3 Memory Function
Press Mode and ▲buttons at the same time for 5s under off state of the unit to turn on or cancel
memory function. If memory function is set, is displayed.
If memory function is set, indoor unit will resume original setting state after power failure and then
power recovery.
If memory function is not set, indoor unit is defaulted to be off after power recovery.
Note:
If memory function is set, indoor unit will resume original setting state after power failure and then
power recovery. If cut off power with 5s after memorized content is changed, the memorized content may
be abnormal. Do not cut off power within 5s after memorized content is changed.
4.4 Door Control Function
Door control function can be selected (More details please refer to Debugging Function).
When door control function is selected, the wired controller will work when the room card is inserted
and stop working when the room card is not inserted;When the door control function senses the room card
is not inserted, the wired controller will display icon.
Note:
The unit can not be controlled by buttons when the card is not inserted.

GREE ROOFTOP PACKAGED SERVICE MANUAL
17
4.5 Switch between Fahrenheit and Centigrade
Under off state of the unit, press Mode and ▼buttons at the same time for 5s to switch between
Fahrenheit and Centigrade.
4.6 Enquiry of Ambient Temperature
Under off or on state of the unit, press Swing/Enter for 5s to view the ambient temperature. In this case,
timer zone displays ambient temperature type 01 or 02. Ambient temperature zone displays the
corresponding temperature of that type. 01 stands for outdoor ambient temperature and 02 stands for the
indoor ambient temperature after compensation. Press Mode button to switch between 01 and 02.
Pressing other buttons except Mode button or receiving remote control signal will exit enquiry state. If there
is no operation within 20s will also exit enquiry state.
Note:
①If the unit is not connected to outdoor ambient temperature sensor, display of outdoor ambient
temperature will be shielding after energizing for 12hr.
②If there is malfunction of outdoor ambient temperature sensor, display of outdoor ambient
temperature will be shielding after energizing for 12hr.
Note (for this air-condition):
When you want to enquiry outdoor ambient temperature,”00”will displayed for 3 seconds, and then the
temperature will turn to the setted temperature.
4.7 Enquiry of Historical Malfunction
Under off or on state of the unit, continuously press Function and ▼buttons for 5s to view historical
malfunction.
In enquiry state, set temperature displaying zone displays “00”. Press ▲and ▼buttons to view
the 10 malfunctions happened recently. The timer displaying position displays the detailed error code. The
10th displayed malfunction is the last malfunction.
4.8 Debugging Function
Under off state of the unit, press Function and Timer buttons at the same time for 5s to go to the
debugging menu. Press Mode button to adjust the setting items and press ▲or ▼button to set the
actual value.
4.8.1 Setting ambient temperature sensor (dual ambient temperature
sensors function)
Under debugging state, press Mode button to adjust to “00”in temperature displaying zone. Timer
zone displays setting state and press ▲or ▼button to adjust. There are 3 selections:
(1) The ambient temperature at air return is set as indoor ambient temperature (timer zone displays
01).
(2) The temperature at wired controller is set as indoor ambient temperature (timer zone displays 02).
(3) Select the temperature sensor at air return in cooling, dry and fan mode; select the temperature
sensor at wired controller in heating and auto mode.