Gree GMV-ND28ZD/B-T Bedienungsanleitung

Owner's Manual

Original Instructions

Commercial Air Conditioners

Multi Variable Air Conditioners

Floor Ceiling Type Indoor Unit

Models:

GMV-ND28ZD/B-T

GMV-ND36ZD/B-T

GMV-ND50ZD/B-T

GMV-ND56ZD/B-T

GMV-ND63ZD/B-T

GMV-ND71ZD/B-T

GMV-ND90ZD/B-T

GMV-ND112ZD/B-T

GMV-ND125ZD/B-T

GMV-ND140ZD/B-T

GMV-ND160ZD/B-T

To Users

Thank you for selecting Gree 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) 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.

(4) 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.

(5) Please properly select the model according to actual using environment; otherwise it

may impact the using convenience.

(6) If the product needs to be installed, moved or maintained, please contact our

designated dealer or local service center for professional support. Users should not

disassemble or maintain the unit by themselves, otherwise it may cause relative

damage, and our company will bear no responsibilities.

(7) 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. If there is adjustment in the product, please subject to actual product.

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 ............................................................................................ 3

2.1 Names of Key Components .....................................................................................3

2.2 Rated Working Condition .........................................................................................3

3 Preparations for Installation................................................................................. 4

3.1 Standard Fittings......................................................................................................4

3.2 Installation Position Selection...................................................................................5

3.3 Requirements of Communication Wire Selection .....................................................6

3.4 Wiring Requirement .................................................................................................7

4 Installation Instructions ........................................................................................ 8

4.1 Indoor Unit Installation .............................................................................................8

4.2 Refrigerant Pipe Connection .................................................................................. 11

4.3 Drainage Pipe Installation and Drainage System Testing ....................................... 11

4.4 Wired Controller Installation ...................................................................................15

5 Wiring Work ....................................................................................................... 15

5.1 Connection of Wire and Patch Board Terminal .......................................................15

5.2 Power Cord Connection .........................................................................................16

5.3 Connection of Communication Wire between Indoor Unit and Outdoor Unit (or

Indoor Unit) ..................................................................................................................17

5.4 Connection of Communication Wire for Wired Controller........................................17

5.5 Wiring Instructions of Wired Controller and Indoor Units Network .......................... 18

6 Routine Maintenance......................................................................................... 20

6.1 Maintenance before the Seasonal Use...................................................................20

6.2 Maintenance after the Seasonal Use .....................................................................20

7 Table of Error Codes for Indoor Unit .................................................................. 21

8 Troubleshooting ................................................................................................. 22

Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit

1 Safety Notices (Please be sure to abide)

WARNING: If not abide them strictly, it may cause severe damage to the unit or the

people.

NOTICE: If not abide them strictly, it may cause slight or medium damage to the unit or

the people.

This sign indicates that the items must be prohibited. Improper operation may cause

severe damage or death to people.

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 the above

special places, please adopt special air conditioner with anti-corrosive or anti-explosion function.

Follow this manual to complete

the installation work. Please

read this manual carefully

before turning on or repairing

the unit.

Installation should be

conducted by the dealer or

qualified personnel. Please

do not attempt to install the

air conditioner by yourself.

Improper installation may

lead to water leakage,

electric shock or fire hazard,

etc.

Before installation, please

check whether the power

supply is complied with that

specified on the nameplate and

check the safety of the power

supply.

The air conditioner must be

grounded reliably for

avoiding electric shock.

Please do not connect the

earthing wire to gas pipe,

water pipe, lightning rod or

telephone line.

Be sure to use special

accessories and parts for

installation to prevent water

leakage, electric shock and fire

hazard, etc.

If refrigerant leakage

happens, please ventilate

the room immediately.

Diameter of power cord should

be large enough. The damaged

power cord and connection wire

must be replaced with special

cables.

When the power cord is

connected, please fix the

electric box cover properly to

avoid safety accidents.

Never fail to comply with the

nitrogen-charging welding

process. Do charge nitrogen

when welding the pipes.

Never short circuit or cancel

the pressure switch to

prevent unit damage.

Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit

As for the unit controlled by the

wired controller, connect the

wired controller well firstly and

then energize the unit;

otherwise, the unit can’t

operate normally.

When installation is finished,

please check whether the

drainage pipes, pipelines

and electric wires are

connected correctly to avoid

water leakage, refrigerant

leakage, electric shock or

fire, etc.

Do not insert fingers or objects

into air outlet or air return grille.

Open the door and window

frequently to keep good

ventilation for avoiding

oxygen deficit when gas

heater or oil heater is used in

the room.

Never plug in or unplug the

power plug directly to turn on or

turn off the air conditioner.

Once the air conditioner is

turned on, it can be turned

off only after it has operated

for 5min at least; otherwise,

it will affect the oil return of

compressor.

Do not allow children to operate

this air conditioner. Do not operate this air

conditioner with wet hands.

The air conditioner can be

cleaned only when it has been

turned off and the power has

been cut off; otherwise, it may

cause electric shock or injury.

Never spray or flush water

towards the air conditioner;

otherwise, malfunction or

electric shock may happen.

Do not expose the air

conditioner to the moist or

corrosive environment.

Put through the power 8

hours in advance before

operation. Do not cut off the

power when the air

conditioner stops operation

for only about one night

(protect the compressor).

Volatile liquid, such as diluent

or gasoline, will damage the

appearance of air conditioner.

Only soft dry cloth and wet

cloth dipped with neutral

detergent can be used to clean

the outer case of air

conditioner.

Under cooling mode, please

don't set the room

temperature too low; keep

the temperature difference

between indoor and outdoor

within 5°C (41°F).

If there are any abnormal

circumstances (such as burning

smell, etc.), please turn off the

unit and cut off the main power

supply immediately, and then

contact Gree appointed service

center. If those abnormal

circumstances still exit, the unit

may be damaged and it may

lead to electric shock or fire

hazard.

Do not repair the unit by

yourself. Wrong

maintenance may cause

electric shock or fire hazard.

Please contact Gree

appointed service center for

help.

Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit

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.

This Multi VRF System shall only be connected to an appliance suitable for the same

refrigerant.

All units in Manual Cover is a partial unit, complying with partial unit of IEC 60335-2-

40:2018, and must only be connected to other units that have been confirmed as complying to

corresponding partial unit requirements of this international standard.

The electrical interface shall comply with electrical security requirement, current shall be

referred to the table of “Dimension of power cord and capacity of air switch” in Section 3.4, and

safety class of construction is I.

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.

2 Product Introduction

2.1 Names of Key Components

Fig.2.1

2.2 Rated Working Condition

Test condition

Indoor Side Condition Outdoor Side Condition

Dry Bulb Temp℃Wet Bulb Temp℃Dry Bulb Temp℃Wet Bulb Temp℃

Rated Cooling 27 19 35 24

Rated Heating 20 15 7

Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit

3 Preparations for Installation

Note: This picture is for reference only, please refer to the actual product; the unit of

dimension is mm.

3.1 Standard Fittings

Use the following provided accessories according to the requirement.

No. Name Appearance Q’ty Usage

1 Remote

Controller 1+2 To control the indoor unit

2 Special Nut

2 GMV-ND28~140ZD/B-T

1 GMV-ND160ZD/B-T

3 Corrugated Pipe 1 GMV-ND160ZD/B-T

4 M10×8 Nut with

Washer 8

To be used together with the

suspension bolt for installing the

unit.

5 Insulation 2 To insulate the gas/liquid pipe

6 Paper Pattern for

Installation — 1 Locate the drill hole on ceiling or

wall

7 Fastener 4 To fasten the sponge

Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit

3.2 Installation Position Selection

(1) The location should be able to withstand the weight of unit.

(2) The water can be drained conveniently from drainage pipe.

(3) There should be no obstruction near air inlet and air outlet.

(4) Follow the installation distance required in the Fig.3.2 below to ensure sufficient space

for maintenance.

(5) The installation location should be far from heat sources, flammable or explosive gas,

or smog spread in the air.

(6) The indoor unit, outdoor unit, power cord and connection electricity wire should be at

least 1m from television and radio in order to prevent interference and noise. (Even

though 1m distance is ensured, there may be noise if the electric wave is too strong.)

Unit: mm

Floor type

Ceiling type

Fig.3.2

Notes:

①The unit shall be installed in accordance with national standards or local regulations.

②Only qualified personnel can carry out installation work, please contact with local dealer

before installation.

③Make sure all the installation work completed before energizing.

Multi Variable Air Conditioners Floor and Ceiling Type Indoor Unit

3.3 Requirements of Communication Wire Selection

Note:

If air conditioner used under strong electronic-magnetic interference circumstance, STP

(shielded twisted pair) communication cable must be adopted.

3.3.1 Select Communication Line for Indoor Unit and Wired Controller

Fig.3.3.1

Material Type

Total Length of

Communication

Line between

Indoor Unit and

Wired Controller L

(m)

Wire Size

(mm2)

Material

Standard Remarks

Light/Ordinary

polyvinyl

chloride

sheathed cord.

(60227 IEC 52

/60227 IEC 53)

L≤250m 2×0.75~2×1.2

IEC

60227-5

1. Total length of communication

line can't exceed 250m .

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.

3.3.2 Select Communication Line for Indoor Unit and Outdoor Unit

Fig.3.3.2

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