Gree GMV-NX140P/A(X1.2)-K Bedienungsanleitung

Owner's Manual

Original Instructions

Commercial Air Conditioners

Multi Variable Air Conditioners

Fresh Air Series Indoor Unit

Models:

GMV-NX140P/A(X1.2)-K

GMV-NX224P/A(X2.0)-M

GMV-NX280P/A(X2.5)-M

GMV-NX280P/A(X3.0)-M

GMV-NX450P/A(X4.0)-M

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 them) ............................................................1

2 Product Introductions ....................................................................................................3

2.1 Unit Introduction ...................................................................................................................... 3

2.2 Rated Working Condition......................................................................................................... 5

2.3 Working Temperature Range................................................................................................... 5

3 Preparations for Installation ..........................................................................................5

3.1 Standard Fittings...................................................................................................................... 6

3.2 Location for Installation............................................................................................................ 6

3.3 Requirements for Communication Line ................................................................................... 7

3.4 Wiring Requirements ............................................................................................................... 8

4 Installation Instructions .................................................................................................9

4.1 Installation of Indoor Unit......................................................................................................... 9

4.2 Pipe Connection .................................................................................................................... 12

4.3 Installation and Test of Drain Pipe ......................................................................................... 12

4.4 Installation of Air Duct............................................................................................................ 15

4.5 Installation of Wired Controller .............................................................................................. 19

5 Wiring Work...................................................................................................................19

5.1 Connection of Wire and Patch Board Terminal...................................................................... 20

5.2 Power Cord Connection ........................................................................................................ 21

5.3 Connection of Communication Line of IDU and ODU ........................................................... 21

5.4 Connect Communication Wire of Wired Controller................................................................ 22

5.5 Illuminate for Connection of Wired Controller and Indoor Units Network .............................. 23

6 Routine Maintenance....................................................................................................25

6.1 Cleaning of Filter ................................................................................................................... 25

6.2 Maintenance before the Seasonal Use ................................................................................. 25

6.3 Maintenance after the Seasonal Use .................................................................................... 25

7 The Table of Error Codes for Indoor Unit ...................................................................25

8 Troubleshooting............................................................................................................26

Multi Variable Air Conditioners Fresh Air Series Indoor Unit

1 Safety Notices (Please be sure to abide them)

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

people.

NOTE: 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 Fresh Air Series 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℃(41℉).

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 Fresh Air Series Indoor Unit

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

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

Gree Electric Appliances, Inc. of Zhuhai.

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 Introductions

2.1 Unit Introduction

VRF fresh air series indoor unit is a kind of air processing unit that inhales the fresh air from outdoor

side and then processes it to provide for the user in the room. Fresh air series indoor unit have three

kinds of connection according to different models:

(1) If the number of connected indoor units is more than one and connecting with conventional VRF

indoor units:

Optional indoor unit model

Connected

outdoor unit series

Connection condition

GMV-NX140P/A(X1.2)-K

GMV-NX224P/A(X2.0)-M

GMV-NX280P/A(X2.5)-M

GMV-NX280P/A(X3.0)-M

GMV5

GMV6

1)The total capacity of connected fresh air indoor units

cannot exceed 50%~100% of the capacity of outdoor

units;

2)The total capacity of connected fresh air indoor units

cannot exceed 30% of the capacity of outdoor units.

Fig 2.1.1 Connection diagram of outdoor unit is a single module

Multi Variable Air Conditioners Fresh Air Series Indoor Unit

Fig 2.1.2 Connection diagram of outdoor units is modular

(2) If the number of connected indoor units is more than one and all of them are VRF fresh air indoor

units:

Optional indoor unit model

Connected

outdoor unit series

Connection condition

GMV-NX140P/A(X1.2)-K

GMV-NX224P/A(X2.0)-M

GMV-NX280P/A(X2.5)-M

GMV-NX280P/A(X3.0)-M

GMV5

GMV6

GMV Slim*

The total capacity of connected fresh air indoor units cannot

exceed 50%~100% of the capacity of outdoor units.

GMV-NX450P/A(X4.0)-M GMV5

GMV6

1)Cannot match with other models of indoor units;

2)The total capacity of connected fresh air indoor units

cannot exceed 50%~100% of the capacity of outdoor

units.

Fig 2.1.3 Connection diagram of outdoor unit is a single module

Fig 2.1.4 Connection diagram of outdoor units is modular

Multi Variable Air Conditioners Fresh Air Series Indoor Unit

(3) If the number of connected indoor units is only one and it is VRF fresh air indoor unit:

Optional indoor unit model

Recommended

capacity of outdoor unit

Connected

outdoor unit series Connection condition

GMV-NX140P/A(X1.2)-K 14kW GMV Mini* The capacity of outdoor

unit is not less than the

recommended capacity

and cannot exceed 10% of

the recommended

capacity.

GMV-NX224P/A(X2.0)-M 22.4kW GMV5

GMV6

GMV Slim*

GMV-NX280P/A(X2.5)-M 28kW

GMV-NX280P/A(X3.0)-M 28kW

GMV-NX450P/A(X4.0)-M 45kW

GMV5

GMV6

Fig 2.1.5 Connection diagram of only one VRF fresh air indoor unit system

NOTES!

①Please match the outdoor unit in strict accordance with the above requirements, otherwise, the

comfortableness will be affected or even the unit will be damaged.

②If the VRF fresh air indoor unit match with GMV Slim series or GMV Mini series, please consult

technical staffs for details.

2.2 Rated Working Condition

Indoor Side Condition

Outdoor Side Condition

Dry Bulb Temp(℃) Wet Bulb Temp(℃) Dry Bulb Temp(℃) Wet Bulb Temp(℃)

Rated Cooling

Rated Heating

2.3 Working Temperature Range

Outdoor Ambient Dry Bulb(℃)

Working Temperature Range -7~45

NOTE!

The ex-factory set temperature is 18℃in cooling mode and 22℃in heating mode. If the user

needs to change the temperature setting, please contact after-sales service personnel.

3 Preparations for Installation

NOTE!

Product graphics are only for reference. Please refer to actual products. Unspecified measure unit is

mm.

Multi Variable Air Conditioners Fresh Air Series Indoor Unit

3.1 Standard Fittings

Please use the supplied standard fittings listed below as instructed.

No.

Name

Graphics

Quantity

Function

1 Wired Controller 1 Control indoor unit

2 Union Nut Sub-assy 1 Connect exit pipe

NOTE!

The packed attachments should be subject to actual objects. If there are any alterations, there will

be no further notice.

3.2 Location for Installation

(1) The top holder must be strong enough to support unit's weight.

(2) Drain pipe can drain water out easily.

(3) There is no obstacle at inlet or outlet. Please ensure good air circulation.

(4) In order to make sure the space for maintenance, please install the indoor unit according to the

dimension described below.

(5) Keep the unit away from heat source, inflammable gas or smoke.

(6) This is a concealed ceiling type unit.

(7) Indoor unit, outdoor unit, power cord and electric wire should stay at least 1m from the TV set

and radio. Otherwise, these electric appliances may have image interference and noise (Even if

the distance is 1m, when there is strong electric wave, noise may still occur).

Unit: mm

Fig.3.2

NOTES!

①Installation of the unit must be in accordance with National Electric Codes and local safety

regulations.

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