Gree GUD50ZD/A-T User manual

Owner's Manual
Original Instructions
Air Conditioners
DC Inverter U-match Series Floor Ceiling Type Unit
Models:
Indoor Unit
Outdoor Unit
GUD35ZD/A-T
GUD35W/NhA-T
GUD50ZD/A-T
GUD50W/NhA-T
GUD71ZD/A-T
GUD71W/NhA-T
GUD85ZD/A-T
GUD85W/NhA-T
GUD100ZD/A-T
GUD100W/NhA-T
GUD100W/NhA-X
GUD125ZD/A-T
GUD125W/NhA-T
GUD125W/NhA-X
GUD140ZD/A-T
GUD140W/NhA-T
GUD140W/NhA-X
GUD160ZD/A-T
GUD160W/NhA-X

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 can be used by children aged from 8 years and
above and persons with reduced physical, sensory or mental
capabilities or lack of experience and knowledge if they have
been given supervision or instruction concerning use of the
appliance in a safe way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without supervision.
(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) Indoor unit must not be installed in a laundry.
(8) If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified persons in
order to avoid a hazard.
(9) Gree Electric Appliances Inc. of Zhuhai assumes no
responsibility for personal injury, property loss or equipment
damage caused by improper installation and commissioning,
unnecessary maintenance, or not following relevant national
rules and regulations, industrial standards and requirements in
this instruction manual.
(10) 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 ...........................................................................6
2.1 Overall Layout.........................................................................6
2.2 Product Operating Range .......................................................7
2.3 Standard Accessories .............................................................7
3 Installation ..........................................................................................8
3.1 Installation Preparation ...........................................................8
3.2 Unit Installation......................................................................20
3.3 Electrical Installation .............................................................38
3.4 Check after Installation..........................................................53
3.5 Test Running .........................................................................53
4 Operation Specification ....................................................................54
5 Maintenance.....................................................................................55
5.1 Failures Not Caused by Faults of the AC ..............................55
5.2 Error Code ............................................................................57
5.3 Unit Maintenance ..................................................................59
5.4 Notice on Maintenance .........................................................63
5.5 After-Sales Services..............................................................71
This marking indicates that this product should not be disposed with
other household wastes throughout the EU. To prevent possible
harm to the environment or human health from uncontrolled
waste disposal, recycle it responsibly to promote the
sustainable reuse of material resources. To return your used
device, please use the return and collection systems or contact the
retailer where the product was purchased. They can take this product
for environmental safe recycling.

DC Inverter U-match Series Floor Ceiling Type Unit
1
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.
(5) Appliance shall be installed, operated and stored in a room
with a floor area larger than"X" m2（"X" see section 3.1.1）.
(6) The appliance shall be stored in a room without continuously
operating ignition sources (for example: open flames, an
operating gas appliance or an operating electric heater).
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.
WARNING！
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

DC Inverter U-match Series Floor Ceiling Type Unit
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anti-corrosive or anti-explosion function.
Please read this operating manual carefully before operating the
unit.
The air conditioner is charged with inflammable refrigerant R32
(GWP: 675).
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) The appliance shall be stored in a well-ventilated area where the room size
corresponds to the room area as specified for operation.
(3) The appliance shall be stored in a room without continuously operating open
flames (for example an operating gas appliance) and ignition sources (for
example an operating electric heater).
(4) 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.
WARNING
(1) Please install according to this instruction manual. Installation must be
performed in accordance with the requirement of NEC and CEC by authorized
personnel only.

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WARNING
(2) 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.
(3) 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.
(4) The appliance shall be installed in accordance with national wiring regulations.
(5) The fixed wires connecting to the appliance must be configured with all-pole
disconnection device under voltage grade III according to wiring rules.
(6) Air conditioner should be stored with protective measures against mechanical
damage caused by accident.
(7) If the installation space for air conditioner pipe is too small, adopt a protective
measure to prevent the pipe from physical damage.
(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) The air conditioner can be cleaned only after it is turned off and
power-disconnected, otherwise electric shock may occur.
(12) The air conditioner is not intended to be cleaned or maintained by children
without supervision.
(13) 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.

DC Inverter U-match Series Floor Ceiling Type Unit
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WARNING
(14) 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.
(15) Do not dry the filter with naked flame or an air blower; otherwise the filter will be
out of shape.
(16) If the unit is to be installed in a small space, please adopt protective measures
to prevent the concentration of refrigerant from exceeding the allowable safety
limit; excessive refrigerant leakage may lead to explosion.
(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.
(18) Only professionals are allowed to carry on daily maintenance.
(19) Before contacting any wire, make sure power is cut off.
(20) Do not let any inflammable objects near the unit.
(21) Do not use organic solvent to clean the air conditioner.
(22) If you need to replace a component, please ask a professional to repair with a
component supplied by the original manufacturer so as to ensure the unit’s
quality.
(23) Improper operation may get the unit broken, hit by electric shock or cause fire.
(24) Do not make the air conditioner wet or electric shock may be lead, Ensure that
the air conditioner will not be cleaned by water rinsing under any circumstance.
NOTICE
(1) Do not put a finger or other objects into the air inlet or air return grill.
(2) Please adopt safety protection measures before touching the refrigerant pipe,
otherwise your hands may be hurt.
(3) Please arrange the drain pipe according to the instruction manual.
(4) Never stop the air conditioner by directly cutting off the power.

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NOTICE
(5) Please select the proper copper pipe according to the requirement for pipe
thickness.
(6) Indoor unit can only be installed indoors while outdoor unit can be installed
either indoors or outdoors. 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.
(7) Adopt proper measures to protect the outdoor unit from small animals because
they may damage the electric components and cause malfunction of the air
conditioner.
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) When installing the indoor unit, keep it away from television, wireless waves,
and fluorescent.
(3) Only use soft dry cloth or slightly wet cloth with neutral detergent to clean the
casing of the air conditioner.
(4) 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).