Gree GMV-ND28TD/A-T Bedienungsanleitung

Owner's Manual

Original Instructions

Commercial Air Conditioners

Multi Variable Air Conditioners

One-way Cassette Type Indoor Unit

Models:

GMV-ND22TD/A-T

GMV-ND28TD/A-T

GMV-ND36TD/A-T

GMV-ND45TD/A-T

GMV-ND50TD/A-T

GMV-ND56TD/A-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) Please properly select the model according to actual using environment; otherwise it may

impact the using convenience.

(4) 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.

(5) 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.

(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. 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 ......................................................................................................4

2.1 Names of Key Components..................................................................................................... 4

2.2 Rated Working Condition......................................................................................................... 4

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 ................................................................................................. 10

4.3 Drainage Pipe Installation and Drainage System Testing...................................................... 10

4.4 Panel Installation ................................................................................................................... 13

4.5 Wired Controller Installation .................................................................................................. 15

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

5.1 Connection of Wire and Patch Board Terminal...................................................................... 16

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...................................................... 18

5.5 Instructions on Connecting Wired Controller and Indoor Units Network ............................... 19

6 Routine Maintenance....................................................................................................21

6.1 Cleaning of Filter ................................................................................................................... 21

6.2 Maintenance before the Seasonal Use ................................................................................. 21

6.3 Maintenance after the Seasonal Use .................................................................................... 21

7 Table of Error Codes for Indoor Unit...........................................................................22

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

Multi Variable Air Conditioners One-way Cassette Type Indoor Unit

1 Safety Notices (Please be Sure to Abide)

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.

This sign indicates that the operation 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 above

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

function .

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, voltage shall be

220-240V~50Hz or 208-

230V~60Hz,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 isⅠ.

Please install the unit according

to instructions in this manual.

Read this manual carefully

before starting up or checking the

machine.

Installation should be performed by

dealer or qualified technicians. Do

not install the product by yourself.

Improper installation may result in

water leakage, electric shock or fire

hazard.

Make sure the local power supply

is in accordance with units before

installation, and check the power

supply carefully.

This air conditioner must be properly

grounded through the receptacle to

avoid electric shock. The grounding

wire shouldn't be connected with gas

pipe, water pipe, lightning arrester or

telephone line.

Please use specialized

accessories or parts to carry out

installation, or water leakage,

electric shock, fire hazard may

resulted.

R410A refrigerant can produce

poisonous gas once it meets fire, so

please ventilate the room

immediately if refrigerant leaks out

during installation.

Multi Variable Air Conditioners One-way Cassette Type Indoor Unit

Diameter of power cord must be

large enough. Damaged power

cord and connecting wire must

be replaced by specialized

electric cable.

After the power cord is connected,

please install the cover of electric

box to avoid danger.

Nitrogen must be charged

according to technical

requirements.

Short circuit is forbidden. Do not

cancel the pressure switch in case

the unit may be damaged.

For units with wired controller, do

not connect power supply until

the wired controller is well

installed. Otherwise, the wired

controller cannot be used.

When the installation is finished,

please check and make sure the

drain pipe, pipeline and electric wire

are all well connected in order to

avoid water leakage, refrigerant

leakage, electric shock or fire

hazard.

Do not extend fingers or objects

into air outlet or air return grille.

If you use gas heater or petroleum

heater in the same room, please

open the door or window to maintain

good air circulation in case the room

may lack of oxygen.

Never start or stop the air

conditioner by inserting or

removing the power cord.

Do not turn off the air conditioner

until it runs for at least 5 minutes.

Otherwise, oil-return of the

compressor will be affected.

Children are not allowed to

operate the air conditioner.

Do not operate the air conditioner

with wet hands.

Please turn the unit off and

unplug your air conditioner

before cleaning. Otherwise, it

may cause electric shock or

personal injury.

Do not spray water on the air

conditioner or it will cause

malfunction or electric shock.

Do not expose the air conditioner

directly to water or place it in a

damp or corrosive environment.

Connect power supply 8 hours

before operation. Do not disconnect

power if you want to stop the unit in a

short period of time, e.g. in one night

(This is for protecting the

compressor).

Multi Variable Air Conditioners One-way Cassette Type Indoor Unit

Volatile liquid like thinner or

gasoline will damage the

appearance of air conditioner.

Please use soft dry cloth or wet

cloth with mild detergent to clean

the outer case of air conditioner.

During Cooling mode, indoor

temperature should not be set too

low. Keep the difference between

indoor temp and outdoor temp within

5℃.

If abnormal condition occurs (e.g.

unpleasant smell), please turn off

the unit at once and disconnect

power supply. Then contact our

designated dealer or local

service center. If the air

conditioner continues to operate

despite of abnormal condition,

the unit may be damaged and it

may cause electric shock or fire

hazard).

Do not repair the air conditioner by

yourself. Improper repair will cause

electric shock or fire hazard. Please

contact our designated dealer or

local service center and have it

repaired by professional technicians.

Install units according to national wiring codes.

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.

An all-pole disconnection device which has at least 3mm clearances in all poles, and disconnection must be

incorporated in the fixed wiring in accordance with the wiring rules.

If the product needs to be installed, moved or maintained, please contact our designated dealer or

local service center for professional support, otherwise out company would bear no legal reliability for

the related damages arising therefrom.

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.

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.

Multi Variable Air Conditioners One-way Cassette Type Indoor Unit

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 6

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 Wireless controller

1 To control the indoor unit

2 Paper pattern for

installation

1 Locate the drill hole on ceiling

3 Tapping screw with

washer

4 Fix paper pattern

4 Washer fixing plate

4 Prevent the washer from falling off

5 Drain Hose Assembly

To connect with the hard PVC

drain pipe

6 Special Nut

2 GMV-ND22~50TD/A-T

1 GMV-ND56TD/A-T

7 Corrugated pipe

1 GMV-ND56TD/A-T

Multi Variable Air Conditioners One-way Cassette Type Indoor Unit

No. Name Appearance Q'ty Usage

8 M10 Washer

10 To be used together with the

hanger bolt for installing the unit.

9 Tapping screw

10 To be used connect the panel to

the main body.

10 Insulation

1 To insulate the gas pipe

11 Insulation

1 To insulate the liquid pipe

12 Sponge

4 To insulate the drain pipe

Fastener

To fasten the sponge

3.2 Installation Position Selection

(1) The appliance shall not be installed in the laundry.

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

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

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

(5) Follow the installation distance required in the Fig below to ensure sufficient space for

maintenance.

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

spread in the air.

(7) 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 ensure, there may be noise if the electric wave is too strong.)

Unit:mm

Fig.3.2

Models: H(mm)

GMV-ND22~56TD/A-T

207

NOTES!

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

②Only qualified personnel can carry out installation work, please contact our designated dealer

or local service center before installation.

③Make sure all the installation work completed before energizing.

Multi Variable Air Conditioners One-way Cassette 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 Selection of Communication Wire between 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≤250 2×0.75~2×1.25 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 Selection of Communication Wire between Indoor Unit and Indoor Unit (or Outdoor

Unit)

Fig.3.3.2

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