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HNTF36/A-D
Service Manual
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Gree HNTF24/A-D, HNTF36/A-D, HNTF48/A-D, HNTF60/A-D Service Manual

Condensing Unit Service Manual
T1/R410A/60Hz
(GC201408-І)
PRODUCT ..................................................................................................... 2
1.1 Indoor Unit .................................................................................................................................... 2
2 NOMENCLATURE ..................................................................................................... 2
2.1 Indoor unit .....................................................................................................................................2
4.1 Product Data at Rated Condition ..................................................................................................4
4.2 Operation Range ........................................................................................................................... 4
4.3 Electrical Data .............................................................................................................................. 5
CONTROL ...................................................................................................... 7
1 OPERATION FLOWCHART ...................................................................................... 7
1.1 Cooling/Dry Operation ................................................................................................................... 7
2.1 Cooling Mode (for Cooling Only and Heat Pump) ......................................................................... 8
2.2 Dry Mode ....................................................................................................................................... 9
2.3 Fan Mode ...................................................................................................................................... 9
3 CONTROLLER ....................................................................................................... 10
3.1 wireless remote controller ..........................................................................................................10
3.2 Wired Controller (Chosen Accessory Part) ................................................................................14
INSTALLATION ............................................................................................ 19
1 INDOOR UNIT INSTALLATION ............................................................................... 19
1.1 Installation of Ceiling Type ..........................................................................................................19
3 REFRIGERATION PIPING WORK .......................................................................... 22
3.1 Refrigeration Piping Work Procedures ........................................................................................ 22
3.2 Caution in Connecting Pipes ....................................................................................................... 26
3.3 Specication of Connection Pipe ................................................................................................26
4 ELECTRIC WIRING WORK ..................................................................................... 26
4.1 Wiring Principle ...........................................................................................................................26
4.2 WIRING DIADRAM ....................................................................................................................28
4.3 Electric Wiring Design ................................................................................................................. 29
MAINTENANCE ........................................................................................... 31
1TROUBLE TABLE(Only for oor ceiling) ................................................................... 31
2 FLOW CHART OF TROUBLESHOOTING ............................................................. 31
2.1 Air ow volume from air outlet of unit is abnormal ......................................................................31
2.2 The unit can not start up for cooling ........................................................................................... 32
2.3 Poor cooling effect .......................................................................................................................33
2.4 Noise or abnormal vibration of unit .............................................................................................34
4 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS ....................... 35
5 EXPLODED VIEWS AND PART LIST ..................................................................... 38
CONTENTS
1
Condensing Unit
Service Manual
PRODUCT
PRODUCT
2
Condensing Unit
Service Manual
PRODUCT
PRODUCT
1 MODELS LIST
1.1 Indoor Unit
Refrigerant
Model Nominal Capacity Power Supply
Appearance
Model Name Product Code Cooling(Ton) Heating(Ton) V, Ph, Hz
R410a
HNTF24/A-D EM116N0760 2 2
220V-230v
1PH 60HZ
HNTF36/A-D EM116N0780 3 3
HNTF48/A-D EM116N0800 4 4
HNTF60/A-D EM116N0820 5 5
Note:1 Ton =12000Btu/h = 3.517kW
2 NOMENCLATURE
2.1 Indoor unit
HN T F 36/ A D
1 2 3 4 5 6
NO Description Options
1 Unit Series Type HN: Split Series
2
Unit Type
U=Match Outdoor Unit F=Duct Type K=Cassette Type T= Ceiling Type
3 / /
4
Nominal Cooling Capacity
018=18000Btu/h 024=24000 Btu/h 030=30000 Btu/h 036=36000 Btu/h 042=42000 Btu/h 048=48000 Btu/h 060=60000 Btu/h
5 Product Serial Number A, B, C...
6 Power Supply
D:1Ph,208/230V,60Hz K:1Ph,220/240V,60Hz M:3Ph,380/415V,50Hz F:3Ph,208/230V,60Hz
3
Condensing Unit
Service Manual
PRODUCT
3 FUNCTION
Function
Description
Memory function
when unit restart after power off, it will run on former status, the mode and parameter are kept the same
Remote control function
wireless controller and remote controller can be opted, and the
maximum control distance of remote controller is 10m.
Timing function it can timing ON/ OFF separately, meanwhile, it also can timing on circularly
Self-diagnosis with alarm function once unit has malfunction, the malfunction code will be indicated
Sleep function
it can self control for saving energy in energy saving mode.
Automatic function
the fan of indoor unit can adjust fan speed automatically based on
actual demand when cooling or heating under automatic mode
Cool air proof function
the fan starts only when the temperature of indoor unit heat exchanger is higher than indoor temperature under heating mode
Weekly Timer
Centralized Control and Week Timer Functions: The centralized controller and
the weekly timer are integrated in the same wire controller. The system has both
the centralized control and the week timing functions. Up to 16 sets of units can
be controlled simultaneously by the centralized controller (weekly timer). The weekly timer has the function of invalidating the lower unit. The weekly timing function is able to realized four timing ON/OFF periods for any unit every day, so as to achieve fully automatic operation. No timing control can be set for holidays.
High/low pressure protection
when suction pressure is too low or discharge pressure is too high, compressor will stop and unit display malfunction code
Overload protection
compressor has its own overheat protection, once the temperature of compressor is higher than allowable level, compressor will stop and only when temperature recovery, compressor restart
Over current protection
once the current of compressor is higher that normal level,
compressor will stop and unit display malfunction code
Discharge high
temperature protection
once the discharge temperature of compressor is higher than allowable value, compressor will stop and unit display malfunction code
Reverse (open) phase protection
once the phase sequence of power supply is incongruent
or the phase is absent, unit can’t work
Anti-high temperature protection once the heat exchanger temperature of indoor unit is too high, compressor stop.
Timing ON/OFF display display and timing turn ON/OFF time (only with wired controller have this function)
Fan speed display
display the speed (high, medium, low) of fan(only
with wired controller have this function)
Function model display
cooling mode, dehumidifying mode, heating mode, fan mode
(only with wired controller have this function)
Testing display
display testing mode(only with wired controller have this function)
Temperature display
display room temperature and set temperature (with wired
controller or remoter board have this function)
4
Condensing Unit
Service Manual
PRODUCT
4 PRODUCT DATA
4.1 Product Data at Rated Condition
HNTF24/A-D HNTF36/A-D HNTF48/A-D HNTF60/A-D
Product Code EM116N0760 EM116N0780 EM116N0800 EM116N0820
Blower
Diameter(inch) 5 5 6 6
Width(inch) 4 4 7 7
Coil Drain Connection
FPT(inch)
7/8 7/8 7/8 7/8
Liquid(inch) 3/8 3/8 3/8 1/2
Suction(inch) 5/8 3/4 7/8 7/8
Electrical Data
Voltage(V) 220-230 220-230 220-230 220-230
Min Circuit
Ampacity (A)
13 13 13 13
Max .Overcurrent
Device(A)
15 15 15 15
Min volts (V) 198 198 198 198
Max volts (V) 254 254 254 254
Fan motor
FLA 0.65 0.65 1.6 1.6
Power output (HP) 1/15 1/15 1/5 1/5
Dimension
Outline Dimension
(W/H/D)(mm)
1220*225*700 1220*225*700 1420*245*700 1420*245*700
Package Dimension
(W/H/D)(mm)
1343*315*823 1343*315*823 1548*345*828 1548*345*828
Net Weight(kg) 41 41 50.5 50.5
Gross Weight(kg) 50 50 58.5 58.5
Note:
a. Nominal capacities are based on the follow conditions.
Indoor Outdoor
Cooling
DB:27oC(80.6oF)
WB:19oC(66.2oF)
DB:35oC(95oF)
WB:24oC(75.2oF)
Piping Length 7.6m
b. The air volume is measured at the relevant standard external static pressure. c. Noise is tested in the Semianechoic Room, so it should be slightly higher in the actual operationdue
to environmental change.
4.2 Operation Range
Mode Range of Outdoor TemperatureoC (oF)
Cooling 67-115
5
Condensing Unit
Service Manual
PRODUCT
4.3 Electrical Data
Indoor unit
Power Supply Fan Motor FLA
Fuse/Breaker
Capacity
Min. Power
Supply Cord
V/Ph/Hz A A mm
2
HNTF24/A-D 220-230,1,60 0.65 15 1.3
HNTF36/A-D 220-230,1,60 0.65 15 1.3
HNTF48/A-D 220-230,1,60 1.6 15 1.3
HNTF60/A-D 220-230,1,60 1.6 15 1.3
Notes: RLA:Rated load amperes LRA:Locked rotor amperes FLA:Full load current
a. Install the disconnect device with a contact gap of at least 3mm in all poles nearby the units (Both
indoor unit and outdoor unit).The appliance must be positioned so that the plug is accessible.
b. The specications of the breaker and power cable listed in the table above are determined based on
the maximum power (maximum amps) of the unit.
c. The specications of the power cable listed in the table above are applied to the conduit-guarded
multi-wire copper cable (like, YJV copper cable, consisting of PE insulated wires and a PVC cable jacket) used at 40°С and resistible to 90°С(see IEC 60364-5-52). If the working condition changes, they should be modied
according to the related national standard.
d. The specications of the breaker listed in the table above are applied to the breaker with the working
temperature at 40°С. If the working condition changes, they should be modied according to the related national
standard.
6
Condensing Unit
Service Manual
CONTROL
CONTROL
7
Condensing Unit
Service Manual
CONTROL
CONTROL
1 OPERATION FLOWCHART
1.1 Cooling/Dry Operation
Power on
Uint start and running
at cool or dry mode
Indoor fan run
Satisfying start Comp.conditon
Comp.and
outdoor fan run
Comp.and outdoor
fan stop
Comp.stop
for 3 min
8
Condensing Unit
Service Manual
CONTROL
2 MAIN LOGIC
2.1 Cooling Mode (for Cooling Only and Heat Pump)
The temperature of condensing unit is set at the wired controller equipped by users When the control-board of the outdoor unit detects the ON signal from wired controller, it will enter cooling
ON sub mode, and compressor, outdoor fan will start running synchronously.
When control-board detects the Stop signal from wired controller, it enters cooling Stop sub mode and the
compressor and outdoor fan stop synchronously.
When control-board detects the OFF signal from wired controller, it enters the cooling OFF sub mode and
compressor and outdoor fan stop synchronously.
Cooling only
Cooling ON Sub Mode Flowchart:
Cooling ON signal is sent out from wired controller
Electrity
Compressor
Outdoor fan
Object
Time
Cooling Stop Sub Mode Flowchart:
Object
Compressor
Outdoor fan
OFF
OFF
ON
ON
Time
Stop signal is sent out from wired controlle
r
9
Condensing Unit
Service Manual
CONTROL
Cooling OFF Sub Mode Flowchart:
OFF signal is sent out from wired controller
Compressor
Outdoor fan
Object
Time
2.2 Dry Mode
Dry mode operation is as follows:
4-way valve Wire (O)
4-way valve Wire (B)
Compressor Control Wire
Indoor fan
Control Object
Time
ON(24V)
ON(24V)
OFF(OV)
(Low speed)
OFF(OV)
OFF(OV)
ON(24V)
ON(24V)O N(24V)
OFF(OV)
When Tambient≥Tset+2°C, the unit will start in cooling mode; In this case, the compressor starts and
indoor fan runs at set speed. After 20s, 4 way valve for cooling start running.
When Tambient≤Tset-2°C, the unit will stop during cooling operation; In this case, the compressor stops
and indoor fan runs at set speed. The 4-way valve for cooling remains original state.
When Tset-2°C<Tambient<Tset+2°C, the unit will operate in the state that the compressor starts 6min and
then stops 4min in cycle. In this case, indoor fan runs at low speed and the 4-way valve for cooling is always
running.
2.3 Fan Mode
(Vset)
ON
ON
OFF
Control objects
Other loads
Indoor fan
Time
Indoor fan will run at high speed for 5s and then at set speed. In this case, other loads stop.
3 CONTROLLER
10
Condensing Unit
Service Manual
CONTROL
3.1 wireless remote controller
3.1.1 User notice
CAUTION !
①.
Be sure that there are no obstructions between receiver and wireless remote controller.
②.
Don't drop or throw the wireless remote controller.
③.
Don't let any liquid in the wireless remote controller and put the wireless remote controller directly under
the sunlight or any place where is very hot.
3.1.2 Control panel of the wireless remote controller
1
4
2
5
7
9
3
8
6
10
14
13
12
11
11
Condensing Unit
Service Manual
CONTROL
No.
Name Function Description
1
Signal transmitter
● Signal transmitter
2
ON/OFF button
● Press this button, the unit will be started or stopped, which can clear the timer or sleeping
function of last time.
3
MODE button
● Press this button, the running mode will change as below:
AUTO ; COOL; DRY; FAN; HEAT (only for cooling and heating unit)
4
+/- button
● When press + button , the setting temp. will be increased by 1 oC ,When press - button,the
setting temp. will be decreased by 1 oC. The temp. will be changed quickly by pressing the
button continuously and setting temp. range is 16-30 oC
5
FAN button
● Press this button once, fan speed will change as below:
Note: Under the DRY mode, the fan will be kept running at the low speed and the fan
speed isn't adjustable.
6
Swing up and
down button
● Simpleness swing mode is defaulted for wireless remote controller, in this mode, press
this button, could turn on or turn off the Up and down swing function.
● When unit is turned off, synchronously press "+" and Up and down swing buttons, it could
be switched between the simpleness swing mode and stationary swing mode, at this
time, blinks 2 seconds.
● In Stationary swing mode, press this button,the angle for Up and down swing as show in
below:
● When up and down swing louver is working,when turn off the unit, the siwng louver will
immediately stop at current position. shows up and down swing louver swings back
and forth as show in the above gure.
7
HEALTH |
SAVE button
● HEALTH function: press the left part of this button,can set up Health function on or off.
After unit is turned on ,Health function ON is defaulted.
● Save energy function: Under Cool mode ,press the right part of this button, the wireless
remote controller will display “ ”, the whole unit will enter into “Electricity Save mode”,
repress this button, the whole unit will quit this mode, other mode button is not available.
Under the Energy Save mode, the temperature and the Fan speed on the wireless
remote controller are not adjustable.
8
Left and right
swing button
● Simpleness swing mode is defaulted for wireless remote controller,in this mode,press this
button, could turn on or turn off the Left and right swing function.
● When unit is turned off, synchronously press "+" and Left and right swing buttons, it could
be switched between the simpleness swing mode and stationary swing mode, at this
time, blinks 2 seconds.
● In Stationary swing mode, press this button,the angle for Left and right swing as show in
below:
● When left and right swing louver is working, when turn off the unit, the siwing louver will
immediately stop at current position. shows left and right swing louver swings back
and forth as show in the above gure.
12
Condensing Unit
Service Manual
CONTROL
9
X-FAN button
● Pressing X -FAN button in COOL or DRY mode, the icon "X-FAN" is displayed and the
indoor fan will continue operation for 10 minutes in order to dry the indoor unit even
though you have turned off the unit. After energization, X-FAN OFF is defaulted. X-FAN is
not available in AUTO,FAN and HEAT mode.
10
TEMP button
● After powered on, displaying presetting temperature is defaulted,(According to customer
requirements to display,if there are no requirements,the presetting temperature displaying
is defaulted, there is no signal display on the wireless remote controller). Press this
button, (display ), display the presetting temperature; (display ), display indoor
ambient temperature, will not change current display status. If current display status is indoor ambient temp. when received other wireless remote controller sginal, then will
display presetting temp., 5s later return to ambient temp. display.
● Other models haven't this function. But pressing this button, the main unit will click and
keep the original status.
11
TIMER button
● On the status of the unit on, press this button to set timer off. On the status of the unit off,
press this button to set timer on. Press this button once, words Hour on(off) will appear
and icker. In which case, press +/- button to adjust time (press +/- button continuously
to change timing value quickly ), the setting time range is from 0.5 to 24 hr. ; press this
button once again to fix the time,then the wireless remote controller will send out the
signal immediately and hour on/off will stop ickering.If the time of that no press timer
button under ickering status is above 5s,the timer setting will quit. If the timer has been
set,press this button once again to quit it.
12
TURBO button
● Set turbo on or off(the characters of turbo will appear or disappear ) by pressing this
button under cooling or heating mode.Once energized, the unit will be defaulted to be
turbo off. This function can not be set under auto, dehumidify or fan mode, and characters
of turbo won't appear.
13
SLEEP button
● Press this button, enter into SLEEP state,when repressed, it will quit. The sleep function
will be canceled with the stop of the unit. There is no SLEEP function under AUTO and
FAN mode. is the icon for sleep function.
● At COOL, X-FAN mode: the SLEEP mode runs after 1hour, the setting temp. will be
increased by 1 oC, 2 hour later, the setting temp. will be increased by 2 oC and then will
run at this setting temperature.
● At HEAT mode: the SLEEP mode runs after 1 hour, the setting temp. will be decreased
by 1 oC, 2 hours later the setting temp. will be decreased by 2 oC, then it will run at setting
temperature.
14
LIGHT button
● Press this button to select LIGHT on or off in the displayer. When the LIGHT on is set,the
icon will be displayed and the indicator light in the displayer will be on. When the
LIGHT off is set, the icon will be not displayed and the indicator light in the displayer
will be off.
3.1.3 Introduction for special function

About X-FAN function
This function indicates that moisture on evaporator of indoor unit will be blowed after the unit is stopped to
avoid mould.
(1). Having set X-FAN function on: After turning off the unit by pressing ON/OFF button indoor fan will
continue running for about 10 min. at low speed. In this period, press X-FAN button to stop indoor fan
directly.
(2). Having set X-FAN function off: After turning off the unit by pressing ON/OFF button, the complete unit will
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