Gree GMV-ND09A/A-T Bedienungsanleitung

Owner's Manual

Original Instructions

Commercial Air Conditioners

GMV DC Air Handler

Models:

GMV-ND09A/A-T(U)

GMV-ND12A/A-T(U)

GMV-ND18A/A-T(U)

GMV-ND24A/A-T(U)

GMV-ND30A/A-T(U)

GMV-ND36A/A-T(U)

GMV-ND42A/A-T(U)

GMV-ND48A/A-T(U)

GMV-ND54A/A-T(U)

Preface

For correct installation and operation, please read all instructions carefully. Before reading

the instructions, please be aware of the following items:

(1) For the safe operation of this unit, please read and follow the instructions carefully.

(2) 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.

(3) Direct operators or maintainers should well keep this manual.

(4) If this unit fails to operate normally, please contact our service center as soon as

possible and provide the following information:

Content on the nameplate (model number, cooling capacity, production code,

ex-factory date).

Malfunction details (before and after the malfunction occurs).

(5) 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.

(6) All graphics in this manual is only for your reference. For sales or production reasons,

these graphics are subject to change by manufacturer without prior notice.

User Notice

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.

Correct Disposal of this product

This marking indicates that this product should not be disposed with other

household wastes. 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.

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 
Safety Precautions ............................................................................................ 1 
Product Introduction......................................................................................... 3 
1 Names of Key Components .....................................................................................3 
2 Rated Working Condition .........................................................................................3 
Preparative for Installation................................................................................ 4 
1 Pre-Installation Instruction........................................................................................4 
2 Important Safety Instructions....................................................................................4 
3 Requirements for Communication Line ....................................................................6 
4 Wiring Requirements................................................................................................7 
Installation Instructions .................................................................................... 8 
1 Dimension Data .......................................................................................................8 
2 Location...................................................................................................................9 
3 Piping Work............................................................................................................10 
4 Condensate Removal.............................................................................................11 
5 Ductwork................................................................................................................11 
6 Installation of Wired Controller ...............................................................................12 
Wiring Work ..................................................................................................... 12 
1 Connection of Wire and Patch Board Terminal.......................................................12 
2 Power Cord Connection.........................................................................................13 
3 Connection of Communication Wire between Indoor Unit and Outdoor Unit (or indoor 
unit)..............................................................................................................................13 
4 Connect Communication Wire of Wired Controller .................................................14 
5 Illuminate for Connection of Wired Controller and Indoor Units Network ................14 
Routine Maintenance....................................................................................... 16 
1 Cleaning of Filter....................................................................................................16 
2 Maintenance before the Seasonal Use...................................................................16 
3 Maintenance after the Seasonal Use......................................................................16 
Table of Error Codes for Indoor Unit.............................................................. 17 
Troubleshooting .............................................................................................. 17 
 

GMV DC Air Handler

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

(3) startup and service.

(4) Wire size of power cord should be large enough.The damaged power cord and connection wire should

be replaced by exclusive cable.

(5) After connecting the power cord, please fix the electric box cover properly in order to avoid accident.

(6) Never fail to comply with the nitrigen charge requirements.Charge nitrogen when welding pipes.

(7) Never short-circiut or cancel the pressure switch to prevent unit damage.

(8) Please firstly connect the wired controller before energization, otherwise wired controller can not be

used.

(9) Before using the unit, please check if the piping and wiring are correct to avoid water leakage, refrigerant

leakage, electric shock, or fire etc..

(10) Do not insert fingers or objects into air outlet/inlet grille.

(11) 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.

(12) Never start up or shut off the air conditioner by means of directly plug or unplug the power cord.

(13) Turn off the unit after it runs at least five minutes; otherwise it will influence oil return of the compressor.

(14) Do not allow children operate this unit.

(15) Do not operate this unit with wet hands.

(16) Turn off the unit or cut off the power supply before cleaning the unit, otherwise electric shock or injury

may happen.

(17) Never spray or flush water towards unit, otherwise malfunction or electric shock may happen.

(18) Do not expose the unit to the moist or corrosive circumstances.

(19) Under cooling mode, please don't set the room temperature too low and keep the temperature difference

between indoor and outdoor unit within 5°C (41°F).

(20) 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.

(21) 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.

GMV DC Air Handler

WARNING

(22) 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..

(23) Be sure to use the exclusive accessory and part to prevent the water leakage, electric shock and fire

accidents.

(24) 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.

(25) 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).

(26) If refrigerant leakage happens during installation, please ventilate immediately. Poisonous gas will

emerge if the refrigerant gas meets fire.

(27) 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.

(28) 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.

Any personal injury or property loss caused by improper installation, improper debug,

unnecessary repair or not following the instructions of this manual should not be the

responsibility of Gree Electric Appliances, Inc. of Zhuhai.

GMV DC Air Handler

2 Product Introduction

2.1 Names of Key Components

Fig 2.1

2.2 Rated Working Condition

Indoor Side Condition

Outdoor Side Condition

Dry Bulb Temp°C(°F)

Wet Bulb Temp°C(°F)

Dry Bulb Temp°C(°F)

Wet Bulb Temp°C(°F)

Rated Cooling

27(80.6)

19(66.2)

35(95)

24(75.2)

Rated Heating

20(68.0)

15(59.0)

7(44.6)

6(42.8)

Indoor Unit Working Temperature Range: 16°C (60.8 °F) ~32°C (89.6 °F)

GMV DC Air Handler

3 Preparative for Installation

3.1 Pre-Installation Instruction

3.1.1 Checking Product Received

After receiving the product, please check if there is any damage caused by 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.

3.1.2 Before 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.

3.1.3 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.

3.1.4 Replacement Parts

When reporting shortages or damages, or ordering repair parts, give the complete product

model and serial numbers as stamped on the product. Replacement parts for this product are

available through your contractor or local distributor.

3.2 Important Safety Instructions

Recognize Safety Symbols, Words, and Labels

The following symbols and labels are used throughout this manual to indicate immediate or

potential hazards. It is the owner’s responsibility to read and comply with all safety information

and instructions accompanying these symbols. Failure to heed safety information increases the

risk of serious personal injury or death, property damage and/or product damage.

DANGER: Immediate hazards which will result in property damage, product damage,

severe personal injury or death.

WARNING: Hazards or unsafe pratices could result in property damage, product

damage, severe personal injury or death.

CAUTION: Hazards or unsafe practices which may result in property damage,

product damage, severe personal injury or death.

GMV DC Air Handler

WARNING: Before serving or installing this equipment. The electrical power to this

unit must be in the “off” position. Caution, more than one disconnect may exist. Failure to

observe this warning may result in an electrical shock that can cause personal injury or death.

WARNING: The United States environmental protection agency (‘epa”) has issued

various regulations regarding the introduction and disposal of refrigerants introduced into this

unit. Failure to follow these regulations may harm the enviroment and can lead to the imposition

of substantial fines. These regulations may vary due to the passage of laws. A certified

technician must perform the installation and service of this product. Should questions arise,

contact your local epa office.

WARNING: Due to high system pressure and electrical shock in potential,

installation and service work can be dangerous. Only trained and qualified personnels are

permitted to install or service this equipment. Observe all warnings contained in this manual

and labels/tags attached to the equipment.

WARNING: This product is factory shipped for use with a 208-230/1/60 electrical

power supply. This air handler must not be reconfigured to operate with any other power supply.

WARNING: The unit must have an uninterrupted, unbroken electric grounding to

minimize the possibility of personal injury if an electric fault occurs. The electric grounding

circuit may consist of an appropriate sized power cord which connected with the grounding

piece located in the unit control box and also connecting to the building electric service panel.

Other methods of grounding are permitted if performed in accordance with the “national electric

code” (nec)/ “american national standards institute” (ansi)/ “national fire protection association”

(nfpa) 70 and local/state codes. In canada, electric grouding conforms to the canadian electric

code csa c22.1. failure to observe this warning can result in electrical shock that can cause

personal injury.

Special warning for installation of furnaces or air handling units in enclosed areas,

such as garages, utility rooms or parking areas.

Carbon monoxide producing devices (such as an automobile, space heater, gas water

heater, etc.) should not be operated in enclosed areas such as unventilated garages, utility

rooms or parking areas because of the danger of carbon monoxide (CO) poisoning resulting

GMV DC Air Handler

from the exhaust emissions.If a furnace or air handler is installed in an enclosed area such as a

garge, utility room or parking area and a carbon monoxide producing device is operated therein,

there must be adequate ventilation directly to outside.

This ventilation is necessary to avoid the danger of CO poisoning which can occur if a

carbon monoxide producing device continues to operate in the enclosed area. Carbon

monoxide emission can be (re)circulated throughout the building if the furnace or air handler is

operating in any mode.

CO can cause serious illness including permanent brain damage or death.

3.3 Requirements for Communication Line

Note:

If the unit is installed in the place with strong electromagnetic interference, shielded wire

must be applied on the communication wire between indoor unit and wired controller. Twisted

pair line with shielding function must be applied on the communication wire between indoor unit

and indoor unit (outdoor unit).

3.3.1 Select communication line for indoor unit and wired controller

Fig 3.3.1

Wire type

Total length of

communication wire

between indoor unit and

wired controller (m/feet)

Wire diameter

(AWG)

Wire standard

Remark

Light/Ordinary

polyvinyl chloride

sheathed cord.

(UL60335-2011)

L≤250(850)

2×18~2×16

UL60335-2011

1. Total length of

communication cable can't

exceed 250m (850feet).

2. The cord shall be Circular

cord (the cores shall be

twisted together).

3. If unit is installed in places

with intense magnetic field or

strong interference, it is

necessary to use shielded

wire.

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