GREE Cozy GWH18 24 28k Dreds Installation guide

Brand: GREE

Model: Cozy GWH18 24 28k Dreds

Category: Split-system air conditioners

Type: Installation guide

Installation and Maintenance

Service Manual

1. Select the installation location according to the require-

ment of this manual.(See the requirements in installation

part)

2. Handle unit transportation with care; the unit should not

be carried by only one person if it is more than 20kg.

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4. Ware safety belt if the height of working is above 2m.

5. Use equipped components or appointed components dur-

ing installation.

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ishing installation.

Electrical Safety Precautions:

7. Notes for Installation and Maintenance

Safety Precautions:

Important!

Please read the safety precautions carefully before

installation and maintenance.

The following contents are very important for installation

and maintenance.

Please follow the instructions below.

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instructions.

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electrical codes.

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manual.

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technician according to local regulations and the

instructions given in this manual.

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incorrect operation to prevent electric shock, casualty and

other accidents.

1. Cut off the power supply of air conditioner before

checking and maintenance.

2. The air condition must apply specialized circuit and

prohibit share the same circuit with other appliances.

3. The air conditioner should be installed in suitable

location and ensure the power plug is touchable.

4. Make sure each wiring terminal is connected firmly

during installation and maintenance.

5. Have the unit adequately grounded. The grounding

wire can’t be used for other purposes.

6. Must apply protective accessories such as protective

boards, cable-cross loop and wire clip.

7. The live wire, neutral wire and grounding wire of

power supply must be corresponding to the live wire,

neutral wire and grounding wire of the air conditioner.

8. The power cord and power connection wires can’t be

pressed by hard objects.

9. If power cord or connection wire is broken, it must be

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poisonous gas; Prohibit prolong the connection pipe by

welding.

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any other refrigerant. Never have air remain in the refrigerant

line as it may lead to rupture or other hazards.

3. Make sure no refrigerant gas is leaking out when

installation is completed.

4. If there is refrigerant leakage, please take sufficient

measure to minimize the density of refrigerant.

5. Never touch the refrigerant piping or compressor without

wearing glove to avoid scald or frostbite.

Warnings

Refrigerant Safety Precautions:

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electric shock or injury.

Installation Safety Precautions:

Part

: Installation and Maintenance

10. If the power cord or connection wire is not long enough,

please get the specialized power cord or connection wire

from the manufacture or distributor. Prohibit prolong the wire

by yourself.

11. For the air conditioner without plug, an air switch must

be installed in the circuit. The air switch should be all-pole

parting and the contact parting distance should be more than

3mm.

12. Make sure all wires and pipes are connected properly and

the valves are opened before energizing.

13. Check if there is electric leakage on the unit body. If yes,

please eliminate the electric leakage.

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if it is burnt down; don’t replace it with a cooper wire or

conducting wire.

15. If the unit is to be installed in a humid place, the circuit

breaker must be installed.

Installation and Maintenance

Service Manual

Main Tools for Installation and Maintenance

1. Level meter, measuring tape

4. Electroprobe

7. Electronic leakage detector

10. Pipe pliers, pipe cutter

2. Screw driver

5. Universal meter

8. Vacuum pump

11. Pipe expander, pipe bender

3. Impact drill, drill head, electric drill

6. Torque wrench, open-end wrench, inner

hexagon spanner

9. Pressure meter

12. Soldering appliance, refrigerant container



Installation and Maintenance

Service Manual

8. Installation

8.1 Installation Dimension Diagram

Space to the obstruction

Drainage pipe

Space to the wall

Space to the obstruction

At least 50cm

At least 200cm

At least 30cm

At least 50cm

Space to the ceiling

Space to the wall

At least 15cm

At least 250cm

Space to the wall

Space to the obstruction

roolfehtotecapS

At least 300cm

Installation and Maintenance

Service Manual

Preparation before installation

Prepare tools

Read the requirements

for electric connection

select installation

location

Select indoor unit

installation location

Install wall-mounting

frame, drill wall holes

Connect pipes of indoor

unit and drainage pipe

Connect wires of indoor unit

Connect wires of outdoor unit

Bind up pipes and

hang the indoor unit

Make the bound pipes pass

through the wall hole and then

connect outdoor unit

Neaten the pipes

Vacuum pumping and leakage detection

Check after installation and test operation

Finish installation

Note: this flow is only for reference; please find the more detailed installation steps in this section.

Select outdoor unit

installation location

Install the support of outdoor unit

(select it according to the actual situation)

Install drainage joint of outdoor unit

(only for cooling and heating unit)

Connect pipes of outdoor unit

Start installation

Fix outdoor unit

Installation Procedures

Installation and Maintenance

Service Manual

No. Name No. Name

1 ,QGRRUXQLW 8 6HDOLQJJXP

2 2XWGRRUXQLW 9 Wrapping tape

3 Connection pipe 10

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XQLW

4 Drainage pipe 11 )L[LQJVFUHZ

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frame

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Connecting

cable(power cord)

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remote controller

7 Wall pipe

1. Safety Precaution

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conditioner.

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8.2 Installation Parts-Checking

8.3 Selection of Installation Location

8.4 Electric Connection Requirement

8.5 Installation of Indoor Unit

Air-conditioner $LUVZLWFKFDSDFLW\

28K 25A

18/24K 16A

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1. Basic Requirement:

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2. Grounding Requirement:

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accessible.

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1. Choosing Installation Iocation

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2. Install Wall-mounting Frame

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2. Indoor Unit:

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appliance.

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3. Outdoor Unit:

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wind.

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installation dimension diagram.

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Note:

Installation and Maintenance

Service Manual

Outlet

pipe

Drain hose

Outlet pipe

Insulating pipe

Torque wrench

Open-end

wrench

Indoor pipe

Pipe

Union nut

Union nutPipe joint

Pipe

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ĭ 15~20

ĭ 30~40

ĭ 45~55

ĭ 60~65

ĭ 70~75

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Left

Rear left

Right

Rear right

Cut off

the hole

Left Right

Drain hose

Insulating pipe

5-10

Φ55/Φ70mm

Indoor

Outdoor

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67;7$DQGWKHQFKHFNLIWKHIUDPHLV¿UPO\LQVWDOOHGE\

SXOOLQJWKHIUDPH,IWKH SODVWLFH[SDQVLRQSDUWLFOHLVORRVH

SOHDVHGULOODQRWKHU¿[LQJKROHQHDUE\

3. Install Wall-mounting Frame

&KRRVHWKHSRVLWLRQRISLSLQJKROHDFFRUGLQJWRWKHGLUHFWLRQ

RIRXWOHWSLSH7KHSRVLWLRQRISLSLQJKROHVKRXOGEHDOLWWOH

ORZHUWKDQWKHZDOOPRXQWHGIUDPH$VVKRZLQ)LJ

5. Connect the Pipe of Indoor Unit

$LPWKHSLSHMRLQWDWWKHFRUUHVSRQGLQJEHOOPRXWK$VVKRZ

LQ)LJ

3UHWLJKWHQLQJWKHXQLRQQXWZLWKKDQG

$GMXVWWKHWRUTXHIRUFHE\UHIHUULQJWRWKHIROORZLQJVKHHW

3ODFHWKHRSHQHQGZUHQFKRQWKHSLSHMRLQWDQGSODFHWKH

WRUTXHZUHQFKRQWKHXQLRQQXW7LJKWHQWKHXQLRQQXWZLWK

WRUTXHZUHQFK$VVKRZLQ)LJ

:UDSWKH LQGRRUSLSHDQGMRLQW RIFRQQHFWLRQSLSHZLWK

LQVXODWLQJSLSHDQGWKHQZUDSLWZLWKWDSH$VVKRZLQ)LJ

6. Install Drain Hose

&RQQHFWWKHGUDLQKRVHWRWKHRXWOHWSLSHRILQGRRUXQLW$V

VKRZLQ)LJ

%LQGWKHMRLQWZLWKWDSH$VVKRZLQ)LJ

4. Outlet Pipe

7KHSLSHFDQEHOHGRXWLQWKHGLUHFWLRQRIULJKWUHDUULJKW

OHIWRUUHDUOHIW$VVKRZLQ)LJ

:KHQVHOHFWLQJOHDGLQJRXWWKHSLSHIURPOHIWRUULJKWSOHDVH

FXWRIIWKHFRUUHVSRQGLQJKROHRQWKHERWWRPFDVH$VVKRZLQ

)LJ

2SHQDSLSLQJKROHZLWKWKHGLDPHWHURIĭPPRQWKH

VHOHFWHGRXWOHWSLSHSRVLWLRQ,QRUGHUWRGUDLQVPRRWKO\VODQW

WKHSLSLQJKROHRQWKHZDOOVOLJKWO\GRZQZDUGWRWKHRXWGRRU

VLGHZLWKWKHJUDGLHQWRI$VVKRZLQ)LJ

Note:

Left

Wall

Φ55/70mm

Right

Mark in the middle of it

Level meter

Rear piping hole

Wall

Space

to the

wall

above

150mm

Space

to the

wall

above

150mm

Rear piping hole

Installation and Maintenance

Service Manual

Wire clip

Wiring board

blue black brown yellow-

green

Connect to outdoor unit

(

)

3XWZLULQJFRYHUEDFNDQGWKHQWLJKWHQWKHVFUHZ

&ORVHWKHSDQHO

Indoor unit

Gas

pipe

Indoor and

outdoor power cord

Liquid

pipe

Drain hose

Band

Drain hose

Band

Connection pipe

Indoor power cord

Wiring cover

Screw

Panel

$OOZLUHVRILQGRRUXQLWDQGRXWGRRUXQLWVKRXOGEH

connected by a professional.

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FRQWDFWWKHVXSSOLHUIRUDQHZRQH$YRLGH[WHQGLQJWKHZLUHE\

\RXUVHOI

)RUWKHDLUFRQGLWLRQHUZLWKSOXJWKHSOXJVKRXOGEH

UHDFKDEOHDIWHU¿QLVKLQJLQVWDOODWLRQ

)RUWKHDLUFRQGLWLRQHUZLWKRXWSOXJDQDLUVZLWFKPXVWEH

LQVWDOOHGLQWKHOLQH7KHDLUVZLWFKVKRXOG EHDOOSROHSDUWLQJ

DQGWKHFRQWDFWSDUWLQJGLVWDQFHVKRXOGEHPRUHWKDQPP

7KHSRZHU FRUGDQGFRQWUROZLUH FDQWEHFURVVHGRU

winding.

7KHGUDLQKRVHVKRXOGEHERXQGDWWKHERWWRP

'RQRWEHQGWKHGUDLQKRVHWRRH[FHVVLYHO\LQRUGHUWRSUHYHQW

EORFNLQJ

7. Connect Wire of Indoor Unit

2SHQWKHSDQHOUHPRYHWKHVFUHZRQWKHZLULQJFRYHUDQG

WKHQWDNHGRZQWKHFRYHU$VVKRZLQ)LJ

8. Bind up Pipe

%LQGXSWKHFRQQHFWLRQ SLSHSRZHUFRUGDQGGUDLQKRVH

ZLWKWKHEDQG$VVKRZLQ)LJ

5HVHUYHDFHUWDLQOHQJWKRIGUDLQKRVHDQGSRZHUFRUG

IRULQVWDOODWLRQZKHQELQGLQJWKHP:KHQELQGLQJWRDFHUWDLQ

GHJUHHVHSDUDWHWKHLQGRRUSRZHUDQGWKHQVHSDUDWHWKHGUDLQ

KRVH$VVKRZLQ)LJ

%LQGWKHPHYHQO\

7KHOLTXLGSLSHDQGJDVSLSHVKRXOGEHERXQGVHSDUDWHO\DW

WKHHQG

9. Hang the Indoor Unit

3XWWKHERXQGSLSHVLQWKHZDOOSLSHDQGWKHQPDNHWKHP

SDVVWKURXJKWKHZDOOKROH

+DQJWKHLQGRRUXQLWRQWKHZDOOPRXQWLQJIUDPH

6WXIIWKHJDSEHWZHHQSLSHVDQGZDOOKROHZLWKVHDOLQJJXP

)L[WKHZDOOSLSH$VVKRZLQ)LJ

&KHFNLIWKHLQGRRUXQLWLVLQVWDOOHG¿UPO\DQGFORVHGWRWKH

ZDOO$VVKRZLQ)LJ

5HPRYHWKHZLUHFOLSFRQQHFWWKHSRZHUFRQQHFWLRQZLUH

WRWKHZLULQJWHUPLQDODFFRUGLQJWRWKHFRORUWLJKWHQWKHVFUHZ

DQGWKHQ¿[WKHSRZHUFRQQHFWLRQZLUHZLWKZLUHFOLS$VVKRZ

LQ)LJ

Note:

Indoor

Outdoor

Wall pipe

Sealing gum

Upper hook

Lower hook of

wall-mounting frame

)LJ

)LJ

)LJ

)LJ

)LJ

)LJ

Power connection

wire

Cable-cross

hole

(2) Make the power connection wire go through the cable-cross

hole at the back of indoor unit and then pull it out from the front

side.(As show in Fig.12)

Installation and Maintenance

Service Manual

7DNHVXIILFLHQWSURWHFWLYHPHDVXUHVZKHQLQVWDOOLQJWKH

RXWGRRUXQLW

0DNHVXUHWKHVXSSRUWFDQZLWKVWDQGDWOHDVWIRXUWLPHVWKH

XQLWZHLJKW

7KHRXWGRRUXQLWVKRXOGEHLQVWDOOHGDWOHDVWFPDERYHWKH

ÀRRULQRUGHUWRLQVWDOOGUDLQMRLQW$VVKRZLQ)LJ

)RUWKHXQLWZLWKFRROLQJFDSDFLW\RI:a:

H[SDQVLRQVFUHZVDUHQHHGHGIRUWKHXQLWZLWKFRROLQJFDSDFLW\

RI:a:H[SDQVLRQVFUHZVDUHQHHGHGIRUWKH

XQLWZLWKFRROLQJFDSDFLW\RI:a:H[SDQVLRQ

screws are needed.

$IWHUWLJKWHQLQJWKH VFUHZSXOOWKHSRZHUFRUGVOLJKWO\WR

FKHFNLILWLV¿UP

1HYHUFXWWKHSRZHUFRQQHFWLRQZLUHWRSURORQJRUVKRUWHQ

WKHGLVWDQFH

7KHWKURXJKZDOOKHLJKWRIGUDLQKRVHVKRXOGQWEHKLJKHU

WKDQWKHRXWOHWSLSHKROHRILQGRRUXQLW$VVKRZLQ)LJ

6ODQWWKHGUDLQKRVHVOLJKWO\GRZQZDUGV7KHGUDLQKRVH

FDQWEHFXUYHGUDLVHGDQGÀXFWXDQWHWF$VVKRZLQ)LJ

Note:

The drain hos

can't raise

upwards

gas pipe

Liquid pipe

Liquid

valve

gas valve

Union nut

Pipe joint

Foot holes

Chassis

Outdoor drain joint

Drain hose

Drain vent

8.6 Installation of Outdoor Unit

1. Fix the Support of Outdoor Unit(select it according to the

actual installation situation)

6HOHFWLQVWDOODWLRQORFDWLRQDFFRUGLQJWRWKHKRXVHVWUXFWXUH

)L[WKHVXSSRUWRIRXWGRRUXQLWRQWKHVHOHFWHGORFDWLRQZLWK

expansion screws.

5. Connect Outdoor Electric Wire

5HPRYHWKHZLUHFOLSFRQQHFWWKHSRZHUFRQQHFWLRQZLUH

DQGSRZHUFRUGWRWKHZLULQJWHUPLQDODFFRUGLQJWRWKHFRORU¿[

WKHPZLWKVFUHZV$VVKRZLQ)LJ

6. Neaten the Pipes

7KHSLSHVVKRXOGEHSODFHGDORQJWKHZDOOEHQWUHDVRQDEO\

DQGKLGGHQSRVVLEO\0LQVHPLGLDPHWHURIEHQGLQJWKHSLSHLV

10cm.

,IWKHRXWGRRUXQLWLVKLJKHUWKDQWKHZDOOKROH\RXPXVWVHW

D8VKDSHGFXUYHLQWKHSLSHEHIRUHSLSHJRHVLQWRWKHURRP

LQRUGHUWRSUHYHQWUDLQ IURPJHWWLQJLQWRWKHURRP$VVKRZLQ

)LJ

)L[WKHSRZHUFRQQHFWLRQZLUHDQGSRZHUFRUGZLWKZLUHFOLS

2. Install Drain Joint(Only for Cooling and Heating Unit)

&RQQHFWWKHRXWGRRUGUDLQMRLQWLQWRWKHKROHRQWKHFKDVVLV

&RQQHFWWKHGUDLQKRVHLQWRWKHGUDLQYHQW$VVKRZLQ

)LJ

3. Fix Outdoor Unit

3ODFHWKHRXWGRRUXQLWRQWKHVXSSRUW

)L[WKHIRRWKROHV RIRXWGRRUXQLWZLWKEROWV$VVKRZLQ

)LJ

4. Connect Indoor and Outdoor Pipes

5HPRYHWKHVFUHZRQWKHULJKWKDQGOHRIRXWGRRUXQLWDQG

WKHQUHPRYHWKHKDQGOH$VVKRZLQ)LJ

5HPRYHWKHVFUHZFDSRIYDOYHDQGDLPWKHSLSHMRLQWDWWKH

EHOOPRXWKRISLSH$VVKRZLQ)LJ

3UHWLJKWHQLQJWKHXQLRQQXWZLWKKDQG

7LJKWHQWKHXQLRQQXWZLWKWRUTXHZUHQFK

+H[QXWGLDPHWHUPP 7LJKWHQLQJWRUTXH1P

ĭ 15~20

ĭ 30~40

ĭ 45~55

ĭ 60~65

ĭ 70~75

5HIHUWRWKHIROORZLQJWDEOHIRUZUHQFKPRPHQWRIIRUFH

)LJ )LJ

)LJ )LJ

)LJ

)LJ

)LJ

)LJ

At least 3cm above the floor

Screw

Handle

U-shaped curve

Wall

Drain hose

Handle

Note: The wiring connect is for reference only,

please refer to the actual one.

N(1) 2 3 L

blue

black

brown

yellow-green

Indoor Unit

DRED

POWER

Installation and Maintenance

Service Manual

7KHZDWHU RXWOHWFDQWEHSODFHG LQZDWHULQRUGHUWRGUDLQ

VPRRWKO\$VVKRZLQ)LJ

Liquid valve

Gas valve

Refrigerant charging

vent

Nut of refrigerant

Charging vent

Vacuum pump

Piezometer

Valve cap

Lo Hi

Inner hexagon

spanner

Open

The drain hose can't be fluctuant

The drain hose

can't be fluctuant

The water

outlet can't be

fluctuant

NO. ,WHPVWREHFKHFNHG 3RVVLEOHPDOIXQFWLRQ

+DVWKHXQLWEHHQ

LQVWDOOHG¿UPO\"

7KHXQLWPD\GURSVKDNHRU

emit noise.

+DYH\RXGRQHWKH

UHIULJHUDQWOHDNDJHWHVW"

,WPD\FDXVHLQVXI¿FLHQWFRROLQJ

KHDWLQJFDSDFLW\

,VKHDWLQVXODWLRQRI

SLSHOLQHVXI¿FLHQW"

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water dripping.

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water dripping.

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Is electric wiring and

pipeline installed

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The water outlet

can't be placed

in water

1. Use Vacuum Pump

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WKHSUHVVXUHGHFUHDVHVWKHUHPD\EHOHDNDJH

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1. Check after Installation

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installation.

2. Test Operation

(1) Preparation of test operation

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controller to start operation.

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WKHDLU

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2. Leakage Detection

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OHDNDJHGHWHFWLRQ$SSO\VRDSZDWHUDWWKHVXVSHFWHGSRVLWLRQ

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EXEEOHVFRPLQJRXWRIWKLVSRVLWLRQWKHUHVDOHDNDJH

8.7 Vacuum Pumping and Leak Detection

8.8 Check after Installation and Test

Operation

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GREE Cozy GWH18 24 28k Dreds Installation guide

Brand: GREE

Model: Cozy GWH18 24 28k Dreds

Category: Split-system air conditioners

Type: Installation guide

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GREE Cozy GWH18 24 28k Dreds Installation guide

GREE Cozy GWH18 24 28k Dreds Installation guide

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