Gree MULTI56HP230V1AO User manual

Super Free Match Series
R410A Systems

Outdoor Unit
Owner's Manual
Gree Air Conditioners
MULTI48HP230V1AO
MULTI56HP230V1AO
Thank you for choosing Gree air conditioners, please read this owner’s manual carefully before
operation and keep it for future reference.

Preface
Super Free Match Series adopt the advanced manufacturing technology and takes the
environmental-friendly R410A as refrigerant, which is a green product in the 21st century. Please
carefully read the manual before installation and operation.
The total capacity of the indoor units which runs at the same time cannot exceed the capacity of
the outdoor units; otherwise, the cooling (heating) effect of each indoor unit would be lower
than the nominal capacity.
Make sure that the manual is kept by the operators or serviceman.
The refrigerant pipes and accessories must be designed exclusively for R410A.
It is a normal phenomenon that the fan of indoor unit will still run for 20~70 seconds after the
indoor unit receives the “stop” signal so as to make full use of the waste heat.
When the work mode of the indoors is conflict with the modes of outdoor units, it will be
indicated on the display of the wired controller in five seconds and then the indoor unit will
stop. In this case, please harmonize their work modes: the cooling mode is compatible with the
dry mode.
If the supply power fails when the unit is running, then the indoor unit will send the “start”
signal to the outdoor unit three minutes later after the power recovery.
The power cable and transmission line must not be twisted together, but instead of separated
with an interval of at least 2cm; otherwise it may be result in communication problem.
This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for
their safety. Children should be supervised to ensure that they do not play with the appliance.
Cautions for the debugging and maintenance personnel:
During debugging and maintenance, before the startup of the compressor, it makes sure that the
heater belt of the compressor has been energized for at least eight hours! Once the compressor is
started, it must be guaranteed that it works continuously for at least 30 minutes, otherwise it would
be damaged!
This product must not be disposed together with the domestic waste. This product has
to be disposed at an authorized place for recycling of electrical and electronic appliances.
Thank you for purchasing GREE air conditioners. Before using, please read this
manual carefully and keep it properly for further reference.

I
Contents
1Safety Precautions.....................................................................................................................1
2Attention for Installation...........................................................................................................3
2.1Precautions for R410A..................................................................................................3
2.2Precaution for Installation .............................................................................................3
2.3Precaution for Operation Test........................................................................................3
2.4Accessories....................................................................................................................3
3Product Introduction .................................................................................................................4
3.1Names of Main Parts.....................................................................................................4
3.2Combinations for Outdoor and Indoor Units ................................................................4
3.3Parts and Components of Unit ......................................................................................5
3.4Working Temperature Range.........................................................................................5
4Selection of Installation Location and Precautions...................................................................6
4.1Selection of Installation Location .................................................................................6
4.2Outline Dimension of Outdoor Unit..............................................................................7
4.3Installation and Servicing Space ...................................................................................7
5Installation Instruction ..............................................................................................................8
6Installation of Refrigerant Pipes ...............................................................................................9
6.1Allowable Length and Drop Height of Connecting Pipe ..............................................9
6.2Dimension of Connecting Pipe ...................................................................................10
6.3Connection of Branch Pipe .........................................................................................10
6.4Connection of Refrigerant Pipes .................................................................................11
6.5Connection of Refrigerant Pipe...................................................................................12
6.6Leak Test .....................................................................................................................13
6.7Vacuum Operation.......................................................................................................13
6.8Refrigerant Charging...................................................................................................14
7Electrical Wiring Work ...........................................................................................................17
7.1Wiring Connection ......................................................................................................17
7.2Requirements of Power Circuit and Cable..................................................................17
7.3Ground Requirements .................................................................................................18
7.4Precautions on the Electrical Wiring Work .................................................................18
7.5Precaution of Laying Wires.........................................................................................19
7.6Procedures for Electrical Wiring Work .......................................................................19
8Design of Drainage Pipeline ...................................................................................................20
8.1Installation of Drain Hose ...........................................................................................20
8.2Design of Drainage Pipeline .......................................................................................20
9Installation of Protective Layer...............................................................................................21
10Test Operation.........................................................................................................................22
10.1Check after Installation ...............................................................................................22
10.2Test Operation .............................................................................................................22
11Testing Board Introduction .....................................................................................................23
11.1Compose of the Testing Board ....................................................................................23
11.2Instruction of Function and Data Section....................................................................23

II
12Troubleshooting ......................................................................................................................24
12.1Check before Contacting Service Center ....................................................................24
12.2Problem Handling .......................................................................................................25
12.3Error Description.........................................................................................................25
13Maintenance............................................................................................................................28
13.1Outdoor Condenser .....................................................................................................28
13.2Drain Pipe ...................................................................................................................28
13.3Check before the Seasonal Use ...................................................................................28
13.4Maintenance after Seasonal Use .................................................................................28
14After-sales Service ..................................................................................................................28

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Super Free Match Series
3
2 Attention for Installation
2.1 Precautions for R410A
It is very strict that the refrigerant pipes should be clean and dry.
The R410A is a mixed refrigerant, when add the refrigerant to the unit, it must keep the
refrigerant in its liquid state. If the refrigerant is in gas state, the composition has been changed
and the capability of the unit will decrease.
When the refrigerant is leak out, please do not touch the leakage. Otherwise, it will result in
frostbite.
It does not support to let a lot of refrigerant go into the ambient atmosphere, because it will
strengthen the green house effect. Otherwise, it will produce toxic gas when the refrigerant
contacts with the fire.
2.2 Precaution for Installation
The unit is so heavy that it is more than 110kg, so more than two persons will be needed to
remove the unit. The package cannot bear it, so do not grasping it.
When remove the units, please place the hands on the corner and take care not to hurt the hands
by the fins.
It is very likely to dispose the waste to the garbage bin after the installation.
2.3 Precaution for Operation Test
In order to protect the compressor from vibrating during transportation and 2 metal gaskets are
used. They must be removed prior to commissioning and tied back the nut firmly; otherwise the unit
might not be operated well.
2.4 Accessories
For the accessories of the air conditioner, please look out the Packing List in the package.

Super Free Match Series
4
3 Product Introduction
The Gree Super Free Match System adopts inverter compressor technology. According to
change displacement of compressor, stepless capacity regulation within range of 10%100% can be
realized. Various product lineups are provided with capacity range from 14kW to 16kW, which can
be widely used in residential house, business office, hotel and where especially applicable to the
place with variable load change. Gree air conditioner is absolutely your best choice.
3.1 Names of Main Parts

NO. ķ ĸ Ĺ ĺ Ļ
Name Fan motor Axial flow fan blade Electrical box Gas side stop
valve
Liquid side stop
valve
Fig. 1
3.2 Combinations for Outdoor and Indoor Units
Table 1
Sorts MULTI48HP230V1AO MULTI56HP230V1AO
Min 2 2
No. of indoor units to be
connected Max 8 9
Min 1 1
No. of BU modules to be
connected Max 3 3
Min 24000 28000
Total capacity of indoor units to
be connected(Btu/h) Max 72000 81000

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Super Free Match Series
6
4 Selection of Installation Location and Precautions
-------------------------------------------------------------------------------------------------------------------------
Caution!
The installation of the air conditioner must be in accordance with the national and local laws
and regulations.
The quality of the installation will affect the capability of air conditioner directly. The
installation should be left to the appointed service center. Please contact your dealer after
purchasing this machine. Professional installation workers will provide installation and test
services according to the installation manual.
The air conditioner should not install in this place where the small animals exist, because they
may cause malfunctions, smoke or fire. Please keep the area around the unit clean.
-------------------------------------------------------------------------------------------------------------------------
4.1 Selection of Installation Location
The outdoor unit must be installed on a firm and solid support which can withstand the weight
and the mounting surface must be horizontal plane. Otherwise, the unit would fall down and
cause injury or death.
There is enough space for the installation and maintenance. Otherwise, there is not any obstacle
near the air inlet and outlet of the indoor and outdoor units.
The place should be well-ventilated, so the machine can absorb and discharge sufficient air.
Outdoor unit shall be installed close to the indoor unit, hence to minimize the length and bends
of cooling pipe.
Avoid place the outdoor unit under the windows or between the constructions, hence to prevent
normal operating noise from entering the room.
Do not install in the place where there is heat source, flammable or explosive gas, a place
subject to severe dust, salty fog and polluted air.
-------------------------------------------------------------------------------------------------------------------------
Caution!
Installation at the following places might lead to the air conditioner malfunction. If it is
unavoidable, please contact the appointed service center.
A place which is full of machine oil;
A region with saline-sodic soil near the sea;
A place where the sulphide fog exists, such as the sulphur spring;
A place where the high frequency facilities exist, such as radio equipment, electric welder and
medical equipment;
An environment with special conditions.
-------------------------------------------------------------------------------------------------------------------------

Super Free Match Series
7
4.2 Outline Dimension of Outdoor Unit
Fig. 3 (unit: mm)
4.3 Installation and Servicing Space
1) When the place of the installation is exposed to strong wind
When strong winds of 5 m/sec or more exist in the place of the installation, the outlet of the unit
cannot face the wind. If the wind blows against the outdoor unit's air outlet, it will cause
deterioration of the operational capacity and maybe break the fan.
2) In case of installing only one unit
In case obstacles exist around the unit, the required installation space is in the Fig. 4.
3) In case of installing multiple units(2 units or more)
In case multiple rows of series installation, the required installation space is in the Fig. 5.
Fig. 4 (unit: mm)
Fig. 5 (unit: mm)

Super Free Match Series
8
5 Installation Instruction
1) Check the installation location and ensure it is strength and level, so that the unit will not cause
any operating vibration or noise after installation.
2) In accordance with the foundation drawing in the following figure, please drill 4 holes in the
installation location.
A: The outlet side B: Bottom view (mm) C: Drain hole
Fig. 6
3) Fix the unit securely with the foundation bolts. You can get the M10 or M12 foundation bolts,
nuts and washers from the market.
Fig. 7
4) Rubber or spring shock absorbers should be used during the installation of the outdoor unit to
meet the noise and vibration requirements.
5) Screw the foundation bolts into the ground and it is better that its length is less than 20mm from
the foundation face.

Super Free Match Series
9
6 Installation of Refrigerant Pipes
6.1 Allowable Length and Drop Height of Connecting Pipe
Fig. 8 (8 indoor units)
Table 3
The sorts The pipes Length˄m˅
Total length between outdoor unit and
BU modules L1+L2+L3+L4+L5 55
MULTI48HP230V1AO 80
Total length
between indoor
units and BU MULTI56HP230V1AO
1A+1B+1C+2A+2B+2C+
3A+3B 90
Between indoor unit and BU module 1A;1B;1C;2A;2B;2C;3A;3B 15
Maximum
allowable
length
Between indoor unit and the 1st branch L4+1B;L2+L5+2A;
L2+L3+3B 40
Between outdoor and indoor units H1 30
Between outdoor units and BU modules H2 30
Between BU and BU modules H3 15
Maximum
allowable
length Between indoor and indoor units H4 15
Between outdoor and the 1st branch L1 5Minimum
allowable
length Between BU and the branch L3;L4;L5 as possible
as short
BU module should be placed within the level between the outdoor unit and indoor unit.

Super Free Match Series
10
6.2 Dimension of Connecting Pipe
Table 4
Sorts Gas Pipe˄mm˅Liquid Pipe˄mm˅
MULTI48HP230V1AO
Outdoor unit MULTI56HP230V1AO ĭ15.9 ĭ9.52
Between outdoor unit and the
1st branch The pipe L1 ĭ19.05 ĭ9.52
Between the 1st and the 2nd
branch The pipe L2 ĭ15.9 ĭ9.52
6.3 Connection of Branch Pipe
1) If two or three BU modules used, Y-type branch pipe of FQ01A/A will be chosen.
FQ01A/A(Liquidpipe) FQ01A/A(Gaspipe)
Fig. 9
2) Y-type branch pipe is equipped with auxiliary tubes to adjust the diameter of different pipes. If
the dimension of the pipe selected is different from the dimension of branch pipe joint, Cut the
copper tube in the middle with tube cutter and clear up burrs. Please do that as following figure.
Fig. 10
3) Y-type branch pipe must be installed in vertical or horizontal direction. In the inlet of the branch
pipe, keep at least 500mm straight pipe.

Fig. 11

Super Free Match Series
11
6.4 Connection of Refrigerant Pipes
6.4.1 Precaution for connection
1) Pipe connections should be follow the following rules:
ķOutdoor unit shall be installed close to the indoor unit, hence to minimize the length and bends
of connection pipes.
ĸThe height gap of outdoor unit and indoor units should be as small as possible
2) The brazing operation must be strictly in accordance with the process requirements. During the
installation, do not damage the pipeline.
6.4.2 The process of flaring
ķ Using the tube cutter to cut the connecting pipe in the appropriate place and remove the burrs.
ĸ Install the nut before the flaring operation.
Ĺ Check the flared portion, whether there is fractured or not.

Fig. 12
6.4.3 Precaution for elbow operation
ķThe elbow operation could be done by hands. Be careful and do not damage the pipe.
Fig. 13
ĸThe bending diameter of the pipeline must be greater than 200mm. The connection pipe cannot
often be bent or straightened. Otherwise it will harden and crack.
ĹIf the thermal insulation of the refrigerant pipe is not removed, please do not bend the pipe.
Otherwise, it maybe leads the pipe to crack. It is better to make an incision with a knife in the
thermal insulation and removes it. After elbow operation is finished, recover the thermal
insulation with binding band.
6.4.4 The process of install refrigerant pipes
ķRemove the screw caps from the pipes.
ĸAlign the flared end of copper tube with the center of pipe joint. Tighten the nuts by hands. (If
the flared end of copper tube and the center of pipe joint are not in coaxial, it is hard to tighten
the nuts by hands, please do not tighten it with spanners, because the screw thread may be
broken by force).
ĹTighten the flaring nuts with torque wrench until you hear a “click”. (The spanner and torque
wrench should be perpendicular to the refrigerant pipeline).

Super Free Match Series
12

ĺThe following table for the torque required to tighten the nuts.
Table 5
Pipe diameter Thickness of
copper tube
Tightening
torque
ĭ6.35 mm 0.8 mm 1530 N·m
ĭ9.52 mm 0.8 mm 3540 N·m
ĭ12.7 mm 0.8 mm 4550 N·m
ĭ15.9 mm 1.0 mm 6065 N·m
ĭ19.05 mm 1.0 mm 7075 N·m
Fig.14
-------------------------------------------------------------------------------------------------------------------------
Caution!
During the connection of the indoor unit and BU module to the refrigerant pipe, never pull any
joints of the indoor unit and the BU module by force; otherwise the capillary pipe or other pipe
may crack, which then would result in leakage.
The refrigerant pipe should be supported by brackets, that is, don’t let the unit withstand the
weight of it.
For the Super Free Match system, each pipe should be labeled to tell which system it belongs to
avoid mistaken inaccurate piping.
-------------------------------------------------------------------------------------------------------------------------
6.5 Connection of Refrigerant Pipe

Super Free Match Series
13
NO. ķ ĸ Ĺ ĺ
Name Coping plate Rear side plate Front side plate Gas side stop valve
NO. Ļ ļ Ľ
Name Liquid side stop valve Right connection board Front connection board
NO. A B C D
Name Front connection Bottom connection Side connection Rear connection
Fig. 15
1) Unscrew the coping plate, front side plate, right connection board and front connection board.
2) The refrigerant pipes can be installed in four directions, please choose the proper direction.
3) Knock the holes in the plate of the chosen direction with the drill and hammer.
4) Connect the pipes to the stop valves.
5) Bend the pipes to go through the knockout holes.
6) Cover the through-holes with sealing materials to prevent the water, dust or small animals going
into the outdoor unit.
6.6 Leak Test
1) Please make sure that the stop valves of the outdoor unit are closed during the operation.
2) The leak test should be made by pressurizing nitrogen gas.
3) Turn on the Hi-knob and Lo-knob. The leak test should be done simultaneously at both the gas
and liquid stop valves.
4) Open the pressure reducing valve, pressurize the connection pipes to 1.0 MPa (10 bar) slowly,
wait fifteen minutes, and make sure that the pressure will not drop.
5) Rise the pressure to 4.0 MPa (40 bar) slowly, wait 24 hours, and make sure the pressure will not
drop.
6) If the pressure does not decrease, the pipes have passed the test. Otherwise, look for where the
gas leaks from.
1: Outdoor unit
2: Liquid side stop valve
3: Gas side stop valve
4: Pressure-vacuum gauge
5: Hi-knob
6: Lo-knob
7: Pressure reducing valve
8: Nitrogen
Fig. 16
6.7 Vacuum Operation
1) Make sure that the liquid and gas stop valve of the outdoor unit are closed fully during the
operation.
2) As shown in the following figure, expel the gas from the refrigerant pipes by the vacuum pump.
3) Open the pump and turn on the knobs to evacuate the gas in the liquid and gas pipes. The
vacuuming should be done simultaneously at both the gas and liquid stop valves.
4) When the pressure of the system is less than 0.1Mpa (1bar), keep the system for more than
one hour under the condition.

Super Free Match Series
14

1: Outdoor unit
2: Liquid side stop valve
3: Gas side stop valve
4: Pressure-vacuum gauge
5: Hi-knob
6: Lo-knob
7: Vacuum pump
Fig. 17
5) Turn off the knobs firstly and then the pump, and if the pressure of the pressure-vacuum gauge
does not rise within 2 hours, the system is under a vacuum. Otherwise, the system has leaked,
please look for where the gas leaks in.
6.8 Refrigerant Charging
The refrigerant has been charged into the outdoor unit before shipped from the manufacturer,
while additional refrigerant still need be charged into the refrigerant pipe in the field installation.
6.8.1 Calculation of the Additional Refrigerant Charging
1) Get the refrigerant charge of the outdoor unit from the nameplate.
----------------------------------------------------------------------------------------------------------------------
Note:
The refrigerant charge of the outdoor unit does not include the charged additionally in the
indoor unit, BU module and the refrigerant pipe.
For the length of the connecting pipe is decided on the field, the amount of additional
refrigerant shall be decided depending on the dimension and the length of the liquid pipe used
on the field.
It does not need to add refrigerant if the total length of liquid pipe is within 30m.
----------------------------------------------------------------------------------------------------------------------
2) Calculating the Mass of Additional Refrigerant
Additional Refrigerant Charge (kg) = Ȉthe Liquid Pipe Length of ĭ6.35h0.022kg/m +Ȉthe
Liquid Pipe Length of ĭ9.52h0.054kg/m1.47(kg)
If the additional refrigerant charge is negative, it does not need to add the refrigerant.
3) Example: GWHD(56S)ND3CO
Fig. 18