Gree GMV-ND72PH/A-T(U), GMV-ND96PH/A-T(U) Owner's Manual
Owner's Manual
Original Instructions
Commercial Air Conditioners
Multi Variable Air Conditioners
Ducted Type Indoor Unit
Models:
GMV-ND72PH/A-T(U)
GMV-ND96PH/A-T(U)
This is the safety alert symbol. It is used to alert you to potential personal injury hazards.
Obey all safety messages that follow this symbol to avoid possible injury or death.
WARNING
This mark indicates procedures which, if improperly performed, might lead to the death or
serious injury of the user.
CAUTION
This mark indicates procedures which, if improperly performed, might possibly result in
personal harm to the user, or damage to property.
NOTICE is used to address practices not related to personal injury.
WARNING
(1) Instructions for installation and use of this product are provided by the manufacturer.
(2) Installation must be performed in accordance with the requirements of NEC and CEC by authorized personnel
only.
(3) For the safe operation of this unit, please read and follow the instructions carefully.
(4) During operation, total capacity of indoor units should not exceed the total capacity of outdoor units. Otherwise,
poor effect of cooling or heating may result.
(5) Direct operators or maintainers should well keep this manual.
(6) If this unit fails to operate normally, please contact our service center as soon as possible and provide the
following information:
1) Content on the nameplate (model number, cooling capacity, production code, ex-factory date.
2) Malfunction details (before and after the malfunction occurs.
(7) Each unit has been strictly tested and proved to be qualified before ex-factory. In order to prevent units from
being damaged or operating normally because of improper disassembly, please do not disassemble the unit by
yourself. If you need to disassemble and check units, please contact our service center. We will send specialists
to guide the disassembly.
(8) Installation must be performed in accordance with the requirements of NEC and CEC by authorized personnel
only.
(9) Under the standby status, the unit will consume a little power for ensuring reliability of complete unit, maintaining
normal communication and preheating refrigerant. When the unit won’t be used for a long time, cut off the power
of the complete unit. However, please preheat it when operating the unit next time.
Preface
For correct installation and operation, please read all instructions carefully. Before reading the
instructions, please be aware of the following items:
Correct Disposal of this product
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.
User Notice
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.
DISPOSAL: Do not dispose this product as unsorted municipal waste. Collection of such
waste separately for special treatment is necessary.
R410A (R32/125:50/50):2087.5
Contents
1 Safety Precautions ............................................................................................................... 1
2 Product Introduction ............................................................................................................. 2
2.1 Names of Key Components ...................................................................................................... 2
2.2 Rated Working Condition .......................................................................................................... 2
3 Preparations for Installation ................................................................................................ 3
3.1 Standard Fittings ........................................................................................................................ 3
3.2 Location for Installation ............................................................................................................. 4
3.3 Requirements for Communication Line .................................................................................. 4
3.4 Wiring Requirements ................................................................................................................. 6
4 Installation Instructions ........................................................................................................ 6
4.1 Installation of Indoor Unit .......................................................................................................... 6
4.2 Refrigerant Pipe Connection .................................................................................................... 8
4.3 Drainage Pipe Installation and Drainage System Testing .................................................... 9
4.4 Installation of Air Duct .............................................................................................................. 11
4.5 Installation of Wired Controller ............................................................................................... 12
4.6 External Static Pressure Settings .......................................................................................... 12
5 Wiring Work ......................................................................................................................... 13
5.1 Connection of Wire and Patch Board Terminal .................................................................... 14
5.2 Power Cord Connection .......................................................................................................... 14
5.3 Connection of Communication Wire between Indoor Unit and Outdoor Unit (or indoor
unit) ................................................................................................................................................... 15
5.4 Connect Communication Wire of Wired Controller ............................................................. 15
5.5 Illuminate for Connection of Wired Controller and Indoor Units Network ........................ 16
6 Routine Maintenance ......................................................................................................... 18
6.1 Cleaning of Filter ...................................................................................................................... 18
6.2 Maintenance before the Seasonal Use ................................................................................. 18
6.3 Maintenance after the Seasonal Use .................................................................................... 18
7 Table of Error Codes for Indoor Unit ............................................................................... 19
8 Troubleshooting .................................................................................................................. 19
1 Safety Precautions
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) Follow this instruction to complete the installation work. Please carefully read this manual before unit startup
and service.
(3) Wire size of power cord should be large enough. The damaged power cord and connection wire should be
replaced by exclusive cable.
(4) After connecting the power cord, please fix the electric box cover properly in order to avoid accident.
(5) Never fail to comply with the nitrogen charge requirements. Charge nitrogen when welding pipes.
(6) Never short-circuit or cancel the pressure switch to prevent unit damage.
(7) Please firstly connect the wired controller before energization, otherwise wired controller cannot be used.
(8) Before using the unit, please check if the piping and wiring are correct to avoid water leakage, refrigerant
leakage, electric shock, or fire etc.
(9) Do not insert fingers or objects into air outlet/inlet grille.
(10) Open the door and window and keep good ventilation in the room to avoid oxygen deficit when the gas/oil
supplied heating equipment is used.
(11) Never start up or shut off the air conditioner by means of directly plug or unplug the power cord.
(12) Turn off the unit after it runs at least five minutes; otherwise it will influence oil return of the compressor.
(13) Do not allow children operate this unit.
(14) Do not operate this unit with wet hands.
(15) Turn off the unit or cut off the power supply before cleaning the unit, otherwise electric shock or injury
may happen.
(16) Never spray or flush water towards unit, otherwise malfunction or electric shock may happen.
(17) Do not expose the unit to the moist or corrosive circumstances.
(18) Under cooling mode, please don't set the room temperature too low and keep the temperature difference
between indoor and outdoor unit within 5℃ (41℉).
(19) User is not allowed to repair the unit. Fault service may cause electric shock or fire accidents. Please
contact Gree appointed service center for help.
(20) Before installation, please check if the power supply is in accordance with the requirements specified on the
nameplate. And also take care of the power safety.
(21) Installation should be conducted by dealer or qualified personnel. Please do not attempt to install the unit by
yourself. Improper handling may result in water leakage, electric shock or fire disaster etc.
(22) Be sure to use the exclusive accessory and part to prevent the water leakage, electric shock and fire
accidents.
(23) Make sure the unit can be earthed properly and soundly after plugging into the socket so as to avoid electric
shock. Please do not connect the ground wire to gas pipe, water pipe, lightning rod or telephone line.
(24) Electrify the unit 8 hours before operation. Please switch on for 8 hours before operation. Do not cut off the
power when 24 hours short-time halting (to protect the compressor).
Multi Variable Air Conditioners Ducted Type Indoor Unit
1
Multi Variable Air Conditioners Ducted Type Indoor Unit
(25) If refrigerant leakage happens during installation, please ventilate immediately. Poisonous gas will emerge if
the refrigerant gas meets fire.
(26) Volatile liquid, such as diluent or gas will damage the unit appearance. Only use soft cloth with a little neutral
detergent to clean the outer casing of unit.
(27) If anything abnormal happens (such as burning smell), please power off the unit and cut off the main power
supply, and then immediately contact Gree appointed service center. If abnormality keeps going, the unit
might be damaged and lead to electric shock or fire.
No. ① ② ③ ④ ⑤ Name
Filter
Air Inlet
Air Outlet
Fittings
Drain Pipe
Indoor Side Condition
Outdoor Side Condition
Dry Bulb
Temp °C(℉)
Wet Bulb
Temp °C(℉)
Dry Bulb
Temp °C(℉)
Wet Bulb
Temp °C(℉)
Rated Cooling
26.7(80.0)
19.4(67.0)
35(95.0)
23.9(75.0)
Rated Heating
21.1(70.0)
15.6(60.0)
8.3(47.0)
6.1(43.0)
2 Product Introduction
2.1 Names of Key Components
2.2 Rated Working Condition
Fig 2.1
2
Multi Variable Air Conditioners Ducted Type Indoor Unit
No.
Name
Appearance
Q'ty
Usage
1
Wired Controller
1
To control the indoor unit
2
Special Nut
1
To be used for connecting the
refrigerant pipe
3
M10X8 Nut with Washer
4
To be used together with the
hanger bolt for installing the unit.
4
M10 Nut (M10X8.4 Nut)
8
To be used together with the
hanger bolt for installing the unit.
5
M10 Washer (Spring
Washer M10X2.6)
4
To be used together with the
hanger bolt for installing the unit.
6
M10 Washer (M10Xφ30X
2.5)
4
To be used together with the
hanger bolt for installing the unit.
7
Insulation
1
To insulate the gas pipe
8
Insulation
1
To insulate the liquid pipe
9
Fastener 8
To fasten the sponge
10
Hanger
or
4
To fix the indoor unit
11
M8 Nut (M8X6.8)
8
To fix the hook on the cabinet of
the unit.
12
M8 Washer (Spring
Washer M8X2.1)
8
To fix the hook on the cabinet of
the unit.
14
M8 Washer
(M8Xφ16X1.5)
8
To fix the hook on the cabinet of
the unit.
15
paper pattern for
installation
1
Locate the drill hole on ceiling
3 Preparations for Installation
Note: Product graphics are only for reference. Please refer to actual products. Unspecified
measure unit is mm(in.)
3.1 Standard Fittings
Please use the supplied standard fittings listed below as instructed.
3
Multi Variable Air Conditioners Ducted Type Indoor Unit
(1) Installation of the unit must be in accordance with National Electric Codes and local regulations.
(2) Improper installation will affect unit’s performance, so do not install the unit by yourself. Please contact
local dealer to arrange professional technicians for the installation.
(3) Do not connect power until all installation work is finished.
3.2 Location for Installation
(1) The appliance shall not be installed in the laundry.
(2) The top holder must be strong enough to support unit’s weight.
(3) Drain pipe can drain water out easily.
(4) There is no obstacle at inlet or outlet. Please ensure good air circulation.
(5) In order to make sure the space for maintenance, please install the indoor unit according
to the dimension described below.
(6) Keep the unit away from heating source, inflammable gas or smoke.
(7) This is a concealed ceiling type unit.
(8) Indoor unit, outdoor unit, power cord and electric wire should stay at least 1m (39-3/8 in.)
from the TV set and radio. Otherwise, these electrical appliances may have image
interference and noise. (Even if the distance is 1m (39-3/8 in.), when there is strong
electric wave, noise may still occur.)
Unit:
mm(in.)
Fig 3.2
3.3 Requirements for Communication Line
Note:
If air conditioner used under strong electronic-magnetic interference circumstance,
STP (shielded twisted pair) communication cable must be adopted.
4
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