Gree GMV-VDR5PH/SA-S User manual

Owner's Manual

Original Instructions

Commercial Air Conditioners

ERV+DX coil

Models:

GMV-VDR5PH/SA-S

GMV-VDR8PH/SA-S

GMV-VDR10PH/SA-S

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) 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.

(5) 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 Introduction···················································5

2.1 Function Introduction ····················································· 5

2.2 Major Structure ····························································· 7

2.3 Outline Dimensions ······················································· 8

2.4 Performance Parameters ················································ 9

2.5 Parameters of Filter and Heat Exchange Core ··················· 10

2.6 List of Accessories ······················································ 11

2.7 Dimension of Connection Pipe ······································· 11

3 Production Installation··············································12

3.1 General Specification ··················································· 12

3.2 Electricity Connecting ·················································· 12

3.3 Wiring Work ······························································· 14

3.4 Installation for Pipeline ················································· 20

3.5 Engineering Design ····················································· 24

4 Inspection, Pilot Run and Daily Setting ·······················29

4.1 Check Before Startup ··················································· 29

4.2 Pilot Run and Debugging Test ········································ 30

4.3 Daily Setting ······························································ 30

5 Daily Error Inquiry and Maintenance···························31

5.1 Error Diagnosis··························································· 31

5.2 Error Code Table ························································· 32

5.3 Maintenance of Key Components ··································· 33

ERV+DX coil

1 Safety Notices (Please Be Sure to Abide Them)

SPECIAL WARNING:

(1) Do not pierce or burn.

(2) Do not use means to accelerate the defrosting process or to clean, other

than those recommended by the manufacturer.

(3) Be aware that refrigerants may not contain an odor.

PROHIBITED: This sign indicates that the operation must be prohibited.

Improper operation may cause severe damage or death to people.

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.

OBSERVED: 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.

Please install the

unit

according to the

instructions in this

manual. Read this

manual carefully

before starting up or

chec

king the

machine.

Installation should be

performed by the

distributor or qualified

technicians.

Do not

install the

product by

yourself.

Improper

installation

may result

in water

leakage,

electric

shock or fire

hazard

ERV+DX coil

Before installation,

please check the

power cord if it is in

accordance with the

specifications on the

nameplate.

Make sure

the

power is safe.

The air conditioner

must be properly

grounded through a

power receptacle to

avoid electric shock.

The grounding wire

shouldn't be

connected with a gas

pipe, water pipe,

lightning arrester or a

telephone line.

When installing,

specialized

accessories and

parts

must be used;

otherwise water

leakage, electric

shock, fire hazard

may occur.

R410A refrigerant

can produce

poisonous

gas once

meets fire, so

please

ventilate the

room

immediately if

refrigerant leaks out

during installation.

A damaged power

cord or connecting

wire must be

replaced

with a

specialized

electric

cable by a

professional

technician.

If the power cord is to

be connected, please

put back the cover of

electric box after

connecting

the cord

avoid danger.

Nitrogen must be

charged according

technical

requirements.

Connect power 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.)

For units that adopt

wired control, do not

connect power until

the wired controller

well installed.

Otherwise, the

wired

controller

cannot be

used.

When installation is

finished,

please

check

and make sure

the

drain pipe,

pipeline

and electric

wires are

all well

connected so

as to

avoid water

leakage,

refrigerant

leakage,

electric

shock

and fire hazard.

ERV+DX coil

Never

start or stop

the

air conditioner

inserting or

removing

the power

cord.

Never put your finger

or any object into the

air outlet or air grille.

Children under the

age of 12 and

persons with

reduced

physical,

sensory or

mental

capabilities or

lack

of experience

and

knowledge shall

not

operate this

appliance.

Do not operate the

machine with wet

hands.

Please turn the unit

off and unplug the

unit before

cleaning.

Otherwise, it may

cause electric shock

or personal injury.

Do not spray water

on this product or

wash the inside of the

unit with water;

otherwise, it will

cause malfunction or

electric shock.

Do not expose this

product directly to

water or place it in a

damp or corrosive

environment.

Do not repair this

product by yourself.

Incorrect work will

cause electric shocks

or fire. Please

contact

GREE service center

for repairs.

During cooling

mode,

indoor

temperature

should

not be set too

low.

Keep the

difference

between

indoor

temp and

outdoor

temp within

5°C.

Do not turn off the

unit until it runs for

least 5 minutes.

Otherwise, oil return

of the compressor

will be affected.

ERV+DX coil

Volatile liquid like

thinner or gasoline

will damage the

appearance of this

product. (Please use

soft dry cloth and wet

cloth with mild

detergent to

clean the

outer case of the

machine.)

For non-

professionals, never

touch the fan volute

or other movable

parts, as it may

result

in injury.

When an

abnormality

(such

as a bad smell)

occurs, stop the unit

at once and

disconnect power.

Then contact GREE

service center. If the

unit continues to

operate despite

abnormal condition,

may be damaged

and

cause electric

shocks

or fire.

For safety concern, if

the

unit is not used

for

a long time,

please

remove the

power

plug.

Please clean the air

filter regularly. Keep

the air filter clean.

Install

a bird screen

similar device at

the

external air vent.

The outdoor air inlet

must be far away

from

the exhaust

port of

flammable

gas.

The air inlet must be

located in a place

where backflow of

exhaust air will not

occur.

A service port of

specific size must

reserved

according

to the

instructions of

installation.

In order to avoid

incomplete

combustion, which

may lead to

intoxication, keep

heating appliances

away

from the air

flow

of the unit.

ERV+DX coil

For pipe fan and

partition wall fan,

mind the air from

the

open air duct or

other

appliances

that

produce open

fire

flowing back

into the

indoor side.

Please verify

completely before

using the appliance

in special places (for

example, places

where there are

precision

instruments, food

and art works).

Due to the limitation

of the detection

principle of air quality

detector, in places

where humidifiers or

aroma diffusers are

used, the air quality

detector will

inevitably

produce

different

deviations.

This is a

normal

phenomenon.

2 Product Introduction

2.1 Function Introduction

This series of fresh air unit is a ventilation device that can continuously filter fresh

air for 24 hours and replace the installation of indoor air to meet user comfort

requirements. The built-in heat exchange core of the unit can efficiently recover the

exhaust energy during operation and reduce the additional indoor load brought

about fresh air. The inside of the unit is also equipped with an evaporator which has

the function of cooling and heating, further processing the fresh air after heat

exchange. It will not increase AC capacity load additionally during the process of

enjoying fresh air, avoiding indoor temperature fluctuation brought about fresh air,

thus reducing comfort. This series of units also adopts constant air volume

technology and a combination of various operating modes to greatly expand the

applicable location of the unit.

The product accords with Rule (EU) 1253–2014.

ERV+DX coil

Table 2-1 Function list

Function

Model

Remarks

GMV-VDR5PH/SA-S

GMV-VDR8PH/SA-S

GMV-VDR10PH/SA-S

Operation control √

Linkage control √ Used with multi VRF unit

Fan speed √

Heat exchange operation

mode

√

Bypass operation mode √

Auto operation mode √

Cooling mode √

Heating mode √

Dehumidification mode √

Supply air mode √

Positive pressure mode √

Negative pressure mode √

Air filter √

Filter clean/replacement alarm

√

Timer √

Group control √

Free cooling √

Free cooling at night √

Centralized control ○

The function is available when

used with Gree centralized

controller

Remote control ○

The function is available when

used with Gree remote

monitoring system

Remark: √-Standard function, ○-Optional function, ×-Not available.

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