Gree GK-H03NH3AS User manual

Owner's Manual
Original Instructions
Air Conditioners
Rooftop Packaged
Models:
GK-H03NH3AS
GK-H5.5NH3AS
GK-H5.5NH3AF
GK-H10NH3AF
GK-H15NH3AF

To Users
Thank you for selecting Gree’s product. Please read this instruction manual
carefully before installing and using the product, so as to master and correctly use
the product. In order to guide you to correctly install and use our product and
achieve expected operating effect, we hereby instruct as below:
(1) 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 responsibility for their safety.
Children should be supervised to ensure that they do not play with the
appliance.
(2) In order to ensure reliability of product, the product may consume some
power under stand-by status for maintaining normal communication of
system and preheating refrigerant and lubricant. If the product is not to be
used for long, cut off the power supply; please energize and preheat the
unit in advance before reusing it.
(3) Please properly select the model according to actual using environment,
otherwise it may impact the using convenience.
(4) This product has gone through strict inspection and operational test
before leaving the factory. In order to avoid damage due to improper
disassembly and inspection, which may impact the normal operation of
unit, please do not disassemble the unit by yourself. You can contact with
the special maintenance center of our company if necessary.
(5) When the product is faulted and cannot be operated, please contact with
our maintenance center as soon as possible by providing the following
information.
1) Contents of nameplate of product (model, cooling/heating capacity,
product No., ex-factory date).
2) Malfunction status (specify the situations before and after the error
occurs).
(6) All the illustrations and information in the instruction manual are only for
reference. In order to make the product better, we will continuously

conduct improvement and innovation. We have the right to make
necessary revision to the product from time to time due to the reason of
sales or production, and reserve the right to revise the contents without
further notice.
(7) The final right to interpret for this instruction manual belongs to Gree
Electric Appliances Inc. of Zhuhai.
Exception Clauses
Manufacturer will bear no responsibilities when personal injury or property loss
is caused by the following reasons:
(1) Damage the product due to improper use or misuse of the product;
(2) Alter, change, maintain or use the product with other equipment without
abiding by the instruction manual of manufacturer;
(3) After verification, the defect of product is directly caused by corrosive gas;
(4) After verification, defects are due to improper operation during
transportation of product;
(5) Operate, repair, maintain the unit without abiding by instruction manual or
related regulations;
(6) After verification, the problem or dispute is caused by the quality
specification or performance of parts and components that produced by
other manufacturers;
(7) The damage is caused by natural calamities, bad using environment or
force majeure.

Contents
1 Safety Notices (Please be sure to abide)................................. 1
2 Product Introduction................................................................. 4
2.1 Nominal Operating Condition........................................................4
2.2 Operating Range...........................................................................4
3 Pre-installation Instruction........................................................ 5
3.1 Checking Product Received..........................................................5
3.2 Standard Accessory Parts.............................................................5
3.3 Before Beginning Installation ........................................................5
3.4 Codes & Regulations ....................................................................5
3.5 Replacement Parts........................................................................5
4 Installation Instructions ............................................................ 6
4.1 Physical Dimension.......................................................................6
4.2 General Information ......................................................................8
4.3 Location ........................................................................................8
4.4 Crane Way....................................................................................9
4.5 Installation Positions and Clearances ...........................................9
4.6 Installation of Condensate Pipe...................................................11
5 Electrical Installation.............................................................. 12
5.1 Electrical Date and Wire Sizing...................................................14
5.2 Connect Wiring to the Terminals .................................................14
5.3 Electrical Connections-Supply Voltage........................................16
5.4 Wiring Diagram ...........................................................................17
6 Maintenance.......................................................................... 17
7 Trial Run ................................................................................ 18
8 Troubleshooting..................................................................... 19
9 Unit Function.......................................................................... 20
9.1 Setting of Double Indoor Room Sensors.....................................20
9.2 Checking of OutdoorAmbient Temperature ................................20
10 Error Code Meaning ............................................................ 20

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1 Safety Notices (Please be sure to abide)
SPECIAL WARNING:
(1) Be sure to comply with national gas regulations.
(2) Do not pierce or burn.
(3) Do not use means to accelerate the defrosting process or to clean, other
than those recommended by the manufacturer.
(4) Be aware that refrigerants may not contain an odor.
PROHIBITED: This sign indicates that the operation must be prohibited.
Improper operation may cause severe damage or death to people.
WARNING: If not abide strictly, it may cause severe damage to the unit or
the people.
NOTICE: If not abide strictly, it may cause slight or medium damage to the
unit or the people.
OBSERVED: This sign indicates that the items must be observed.
Improper operation may cause damage to people or property.
Please read this operating manual carefully before operating the unit.
Before using the air conditioner, please read the instruction manual.
Before installing the air conditioner, please read the instruction manual.
Before repairing the air conditioner, please read the instruction manual.
The figures in this manual may be different with the material objects,
please refer to the material objects for reference.
PROHIBITED
(1) The air conditioner should be grounded to avoid electric shock. Do not connect
the ground wire to gas pipe, water pipe, lightning arrester or telephone wire.
(2) According to federal/state/local laws and regulations, all packages and
transportation materials, including nails, metal or wooden parts, and plastic
packing material, must be treated in a safe way.

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WARNING
(1) This product can’t be installed at corrosive, inflammable or explosive
environment or the place with special requirements, such as kitchen.
Otherwise, it will affect the normal operation or shorten the service life of the
unit, or even cause fire hazard or serious injury. As for above special places,
please adopt special air conditioner with anti-corrosive or anti-explosion
function.
(2) Do not use or store flammable, explosive, poisonous or other dangerous
substances beside the air conditioner.
(3) Any person who is involved with working on or breaking into a refrigerant circuit
should hold a current valid certificate from an industry-accredited assessment
authority, which authorises their competence to handle refrigerants safely in
accordance with an industry recognised assessment specification.
(4) Servicing shall only be performed as recommended by the equipment
manufacturer. Maintenance and repair requiring the assistance of other skilled
personnel shall be carried out under the supervision of the person competent in
the use of flammable refrigerants.
(5) The appliance shall be installed in accordance with national wiring regulations.
(6) An all-pole disconnection switch having a contact separation of at least 3mm in
all poles should be connected in fixed wiring.
(7) Air conditioner should be stored with protective measures against mechanical
damage caused by accident.
(8) During installation, use the specialized accessories and components, otherwise
water leakage, electric shock or fire hazard may occur.
(9) Please install the air conditioner in a secure place that can withstand the weight
of air conditioner. Insecure installation may cause the air conditioner falling
down and lead to injury.
(10)Be sure to adopt independent power circuit. If the power cord is damaged, it
must be repaired by the manufacturer, service agent or other professional
agents.
(11)In case of trouble (e.g. burnt smell), please immediately cut off the main power
of air conditioner unit.
(12)The air conditioner can be cleaned only after it is turned off and
power-disconnected, otherwise electric shock may occur.
(13)The air conditioner is not intended to be cleaned or maintained by children
without supervision.
(14)Do not alter the setting of pressure sensor or other protective devices. If the
protective devices are short-circuited or changed against rules, fire hazard or
even explosion may occur.
(15)Do not operate the air conditioner with wet hands. Do not wash or sprinkle
water on the air conditioner, otherwise malfunction or electric shock will occur.
(16)Do not dry the filter with naked flame or an air blower; otherwise the filter will be
out of shape.

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WARNING
(17)When installing or re-installing the air conditioner, please keep the refrigerant
circuit away from substances other than the specified refrigerant, such as air.
Any presence of foreign substances will cause abnormal pressure change or
even explosion, resulting in injury.
NOTICE
(1) Do not put a finger or other objects into the air inlet or air return grill.
(2) Please do not foot on or place any goods on air conditioner unit.
(3) Before installation, please check the power supply for compliance with the
ratings on nameplate. Check the power safety as well.
(4) Please adopt safety protection measures before touching the refrigerant pipe,
otherwise your hands may be hurt.
(5) Please arrange the drain pipe according to the instruction manual.
(6) Never stop the air conditioner by directly cutting off the power.
(7) Never install the air conditioner in the following places:
a) Places with oil smoke or volatile liquid: plastic parts may deteriorate and fall
off or even cause water leakage.
b) Places with corrosive gas: copper pipe or the welding parts may be
corroded and cause refrigerant leakage. Places with oil smoke or volatile
liquid: plastic parts may deteriorate and fall off or even cause water leakage.
(8) Adopt proper measures to protect the unit from small animals because they
may damage the electric components and cause malfunction of the air
conditioner.
(9) The temperature of refrigerant circuit will be high, please keep the
interconnection cable away from the copper tube.
OBSERVED
(1) If wired control is to be used, it should be connected first before powering up
the unit, otherwise the wired control may not be able to use.
(2) Before operating the unit under low temperature, connect it to power for 8
hours. If it is stopped for a short time, for example, one night, do not cut off the
power (This is to protect the compressor).
(3) Once started, the air conditioner shall not be stopped at least after 5 minutes or
longer; otherwise the oil return to compressor may be affected.
(4) Please disconnect the main power if to put the air conditioner unit out of use for
a long period.

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2 Product Introduction
GREE rooftop packaged units provide a wide capacity range from 3 to 15 Ton.
These units are completely assembled, piped and wired at the factory to provide
one-piece shipment and rigging. Each unit is pressurized with a holding charge of
Refrigerant-410a for storage and shipping.
The compact design, attractive appearance, outstanding anti-rust cabinet and
quiet operation make these units suitable for almost any manufactured or modular
homes,offices,restaurants,residences or similar places.
2.1 Nominal Operating Condition
Item
Outdoor Conditon
Indoor Condition
DB
Temperatrue(°C)
WB
Temperatrue(°C)
DB
Temperatrue(°C)
WB
Temperatrue(°C)
Cooling
35
24
27
19
Heating
7
6
20
15
2.2 Operating Range
GK-H03NH3AS, GK-H5.5NH3AS, GK-H5.5NH3AF,GK-H10NH3AF,GK-H15NH3AF
Item
Outdoor Condition (DB °C)
Cooling
18~48
Heating
-10~24

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3 Pre-installation Instruction
3.1 Checking Product Received
Upon receiving the product, check any damage from transportation. Shipping
damage is the responsibility of the carrier. Verify the model number, specifications
and accessories are correct prior to installation. The distributor or manufacturer will
not accept claims from dealers for transportation damage or installation of
incorrectly shipped units.
3.2 Standard Accessory Parts
The standard accessory parts listed below are furnished and should be used as
required.
No.
Name
Appearance
Q'ty
Usage
1
Wired
Controller
1
To control the unit
3.3 Before Beginning Installation
Carefully read all instructions for the installation prior to installing product. Make
sure each step or procedure is understood and any special considerations are taken
into account before starting installation. Assemble all tools, hardware and supplies
needed to complete the installation. Some items may need to be purchased locally.
Make sure everything needed to install the product is on hand before starting.
3.4 Codes & Regulations
This product is designed and manufactured to comply with national codes. It is
installer’s responsibilities to install the product in accordance with such codes
and/or any prevailing local codes/regulations. The manufacturer assumes no
responsibilities for equipment installed in violation of any codes or regulations.
3.5 Replacement Parts
When reporting shortages or damages, or ordering repair parts, give the
complete product model and serial numbers as stamped on the product.

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Replacement parts for this product are available through your contractor or local
distributor.
4 Installation Instructions
4.1 Physical Dimension
GK-H03NH3AS
GK-H5.5NH3AS, GK-H5.5NH3AF

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GK-H10NH3AF
GK-H15NH3AF
Dimension
(mm)
A
B
C
D
E
F
G
H
I
J
K
L
M
GK-H03NH3AS
815
1450
1120
70
98
417
94
916
60
155
215
719
178
GK-H5.5NH3AS
815
1450
1120
70
98
417
94
916
65
190
144
866
105
GK-H5.5NH3AF
815
1450
1120
70
98
417
94
916
65
190
144
866
105
GK-H10NH3AF
1215
1450
1120
70
98
686
94
916
70
190
144
866
105
GK-H15NH3AF
1245
2260
1140
80
111
595
50
914
58
406
298
487
349
Note: Above diagrams may be different from actual mode.

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4.2 General Information
Model Name
Model
Power Supply
Refrigerant
Function
Climate type
V, Ph, Hz
GK-H03NH3AS
R410A
Heat
Pump
T1
220-240V,
1Ph, 50/60Hz
GK-H5.5NH3AS
R410A
Heat
Pump
T1
220-240V,
1Ph, 50/60Hz
GK-H5.5NH3AF
R410A
Heat
Pump
T1
220-240V,
3Ph, 60Hz
GK-H10NH3AF
R410A
Heat
Pump
T1
220-240V,
3Ph, 60Hz
GK-H15NH3AF
R410A
Heat
Pump
T1
220-240V,
3Ph, 60Hz
Note: 1Ton =12000Btu/h = 3.517kW
4.3 Location
To ensure the unit in proper function, selection of installation location must be in
accordance with following principles.
(1) Unit shall be installed so that the air discharged by outdoor fan will not
return and that sufficient space for repair shall be provided around the
unit.
(2) The installation site must have good ventilation, so that the unit can take
in and exhaust enough air.
(3) Place of installation shall be strong enough to support the weight of unit,
and it shall be able to insulate noise and prevent vibration. Ensure that the
wind and noise from the unit will not affect your neighbors.
(4) Avoid direct sunshine over the unit. It is better to set up a sun shield as the
protection.
(5) Place of installation must be able to drain the rainwater and defrosting
water.
(6) Place of installation must ensure the unit will not subject to the influence
of rubbish or oil fog.
(7) The installation site must be at a place where the air exhaust outlet does
not face strong wind.
(8) Unit must be fixed on stable and solid surface of floor.

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4.4 Crane Way
(1) When removing the unit, two ropes are needed to hang the unit along the
four ways.
(2) In order to avoid the extrusion, between the ropes should be add
something to protect the unit (e.g. batten).
(3) Please use M12 to tight the support fundus.
4.5 Installation Positions and Clearances

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GK-H03NH3AS, GK-H5.5NH3AS, GK-H5.5NH3AF
Note: Above diagrams may be different from actual model.
GK-H03NH3AS, GK-H5.5NH3AS, GK-H5.5NH3AF
Installation Clearances
DIMENSION
(Minimum)
mm
inch
A
600
24
B
1100
43
C
860
34
D
1100
43
E
1100
43

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GK-H10NH3AF, GK-H15NH3AF
Note: Above diagrams may be different from actual model.
GK-H10NH3AF, GK-H15NH3AF
Installation Clearances
DIMENSION
(Minimum)
mm
inch
A
1000
39
B
1500
59
C
1100
43
D
1100
43
E
1830
72
4.6 Installation of Condensate Pipe
(1) After the unit is installed, it is required to check the level of the whole unit.
The unit must be placed horizontally to ensure the unit in proper function.
(2) When shipped out from factory, both the condensate outlets are blocked
by rubber plug. So before installation, please take the rubber plug out.

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(3) Condensate removal is performed by attaching a PVC pipe to the drain
pan and terminated in accordance with local or state Plumbing/HVAC
codes.
(4) The condensate pipe shall be installed with an inclining angel of 5~10°, so
as to facilitate the drainage of condensate.
(5) As the inside of the unit is in the negative pressure status, it is required to
set up a backwater elbow. The requirements is: A=B≥P/10+20(mm).
(6) P is the absolute pressure inside the unit. The unit of the pressure is Pa.
(7) After the electrical installation is completed, carry out the testing of the
drainage system.
Model Name
Drain Connection Size(mm)
GK-H03NH3AS
20
GK-H5.5NH3AS
20
GK-H5.5NH3AF
20
GK-H10NH3AF
20
GK-H15NH3AF
20
4.7 Adjust the Tightness of the Belt (Only above 10
Ton)
（1）The rotation of the fan is achieved by the transmission of the belt. The
velocity and stability of the fan is associated with the tightness of the belt
and the tightness should be adjusted after a period of time.
（2）For a new belt, the tightness should be adjusted for at least twice within 24

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hours. After one week running, the tightness of the belt should be adjusted
again, we should routinely check it every 1-2 months; also ensure the test
results complying with the following table.
（3）The adjustment of the tightness of the belt is shown in the following figure.
Loosen screws fixing motor on the base, move motor along the direction of
arrow as shown in the picture, and then fix the screw again.
（4）
The tightness level of belt is tested by tensiometer as shown in the following
figure, when reaches the deviation length, read the value on the meter, the
value should be in the category specified in the following table.
Section
area
of the
belt
Diameter of
the
small
wheel(mm)
Diameter
of
the big
wheel(mm)
The total
length of
the
belt(mm)
Deviation
length(m
m)
Tension(N)
Min.
Max.
SPA
100
190
1700
9.9
13
14
100
180
1682
9.9
13
14
106
190
1700
9.9
12
14
100
170
1657
9.8
13
14
106
180
1682
9.8
12
14
112
190
1732
10.0
12
13
Note: Above diagrams may be different from actual model.

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5 Electrical Installation
5.1 Electrical Date and Wire Sizing
Model Name
Power Supply
(V, Ph, Hz)
Capability
of Air
Switch(A)
Min.
Sectional
Area of
Earth
Wire(mm2)
Min.
Sectional
Area of
Power
Cord(mm2)
GK-H03NH3AS
220-240V,1Ph,
50/60Hz
25A
4.0
4.0
GK-H5.5NH3AS
220-240V,1Ph,
50/60Hz
40A
10.0
10.0
GK-H5.5NH3AF
220-240V,3Ph,
60Hz
40A
10.0
10.0
GK-H10NH3AF
220-240V,3Ph,
60Hz
50A
10.0
10.0
GK-H15NH3AF
220-240V,3Ph,
60Hz
125A
35.0
35.0
5.2 Connect Wiring to the Terminals
NOTICE!
Please note the following items before installing the electric appliance.
①.Check if the power supply accords with its value on the nameplate.
②.The capacity of the power supply must be large enough.
③.The circuit should be installed by the professional technician.
④.In fixed circuit, there must be electricity leakage protection switch of
enough power capacity and air switch with space between its electrode
contacts ≥3mm.
⑤.Single wire connection.
a) Peel off the insulation for 25mm with pliers.
b) Remove the screw from the terminal board.
c) Bend the peeled wire into circle with pliers.
d) Screw cross the circle and fix it on the terminal board.
⑥.Strand wires connection.
a) Peel off the insulation for 10mm with pliers.
b) Remove the screw from the terminal board.
c) Clamp a round terminal of the peeled wires.

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d) Screw cross the circle and fix it on the terminal board.
WARNING!
If the power line or the signal line is defective, use the special coil to replace
it.
①.Before connecting lines, read the voltages of the relevant parts on the
nameplate. Then carry out line connection according to the schematic
diagram.
②.The air-conditioning unit shall have special power supply line which shall
be equipped with electricity leakage switch and air switch, so as to deal
with overload conditions.
③.The air-conditioning unit must have grounding to avoid hazard owing to
insulation failure.
④.All fitting lines must use crimp terminals or single wire. If multiple twisted
wires are connected to terminal board, arc may arise.
⑤.All line connections must conform to the schematic diagram of lines.
Wrong connection may cause abnormal operation or damage of the
air-conditioning unit.
⑥.Do not let any cable contact the refrigerant pipe, the compressor and
moving parts such as fan.
⑦.Do not change the internal line connections inside the air-conditioning
unit. The manufacturer shall not be liable for any loss or abnormal
operation arising from wrong line connections.
⑧.If the supply cord is damaged, it must be replaced by the manufacturer or
its service agent or a similarly qualified person in order to avoid a hazard.
⑨.All of the supplied components, material, and electric operation should be
accorded with the local principles.

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⑩.The null line of power input must be connected to the “N” section of the
terminal board! A wrong connection will cause the damage of unit!
5.3 Electrical Connections-Supply Voltage
(1) Air-conditioning unit with single-phase power supply.
1) Remove the Electric Box Cover of the unit.
2) Pass the cable though rubber ring.
3) Connect the power supply cable to the terminals and the grounding
screw.
4) Use cable fastener to bundle and fix the cable.
(2) Air-conditioning unit with 3-phase power supply.
1) Remove the Electric Box Cover of the unit.
2) Pass the cable though rubber ring.
3) Connect the power supply cable to terminals and the grounding screw
according to wiring diagram.
4) Use cable fastener to bundle and fix the cable.
(3) Low Voltage Connections.
Low voltage wiring is to be copper conductors. The wire size of the
communication line should be no less than 0.75mm2.
1) Remove the Electric Box Cover of the unit.
2) Pass the signal cable of the wire controller though rubber ring.
3) Connect the signal cable to terminals according to wiring diagram.
4) Use cable fastener to bundle and fix the cable.
NOTICE!
Take great care when carrying out the following connections, so as to avoid
malfunction of the air-conditioning unit because of electromagnetic
interference.
①.The signal line of the wire controller must be separated from the power
line.
②.In case the unit is installed in a place vulnerable by electromagnetic
interference, it is better to use shielded cable or double-twisted cable as
the signal line of the wire controller.