Download Gree Cozy GWH18-24-28k Dreds Installation

Service Manual
Part ė : Installation and Maintenance
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.
Warnings
Electrical Safety Precautions:
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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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 Safety Precautions:
1. Select the installation location according to the requirement 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 during installation.
0DNHVXUHQRIRUHLJQREMHFWVDUHOHIWLQWKHXQLWDIWHU¿Qishing installation.
Refrigerant Safety Precautions:
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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.
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electric shock or injury.
41
Service Manual
Main Tools for Installation and Maintenance
1. Level meter, measuring tape
2. Screw driver
3. Impact drill, drill head, electric drill
42
4. Electroprobe
5. Universal meter
6. Torque wrench, open-end wrench, inner
hexagon spanner
7. Electronic leakage detector
8. Vacuum pump
9. Pressure meter
10. Pipe pliers, pipe cutter
11. Pipe expander, pipe bender
12. Soldering appliance, refrigerant container
Installation and Maintenance
Service Manual
8. Installation
At least 15cm
Space to the ceiling
8.1 Installation Dimension Diagram
Space to the wall
Space to the wall
At least 15cm
At least 250cm
Space to the floor
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At least 50cm
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Space to the obstruction
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At least 15cm
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to
the
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cm
30
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wa
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30
cm
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Installation and Maintenance
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43
Service Manual
Installation Procedures
Start installation
Preparation before installation
Read the requirements
for electric connection
select installation
location
Select indoor unit
installation location
Prepare tools
Select outdoor unit
installation location
Install the support of outdoor unit
(select it according to the actual situation)
Install wall-mounting
frame, drill wall holes
Connect pipes of indoor
unit and drainage pipe
Fix outdoor unit
Connect wires of indoor unit
Install drainage joint of outdoor unit
(only for cooling and heating unit)
Bind up pipes and
hang the indoor unit
Make the bound pipes pass
through the wall hole and then
connect outdoor unit
Connect pipes of outdoor unit
Connect wires of 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.
44
Installation and Maintenance
Service Manual
8.2 Installation Parts-Checking
No.
1
2
Name
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2XWGRRUXQLW
No.
8
9
3
Connection pipe
10
4
Drainage pipe
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frame
Connecting
cable(power cord)
Wall pipe
11
5
6
7
12
13
Name
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Wrapping tape
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remote controller
Note:
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8.3 Selection of Installation Location
1. Basic Requirement:
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2. Indoor Unit:
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appliance.
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3. Outdoor Unit:
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installation dimension diagram.
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Installation and Maintenance
8.4 Electric Connection Requirement
1. Safety Precaution
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conditioner.
Air-conditioner
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18/24K
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2. Grounding Requirement:
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accessible.
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8.5 Installation of Indoor Unit
1. Choosing Installation Iocation
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2. Install Wall-mounting Frame
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45
Service Manual
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3. Install Wall-mounting Frame
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Wall
Wall
Level meter
Mark in the middle of it
Space
to the
wall
above
150mm
Space
to the
wall
above
150mm
Left
Φ55/70mm
Rear piping hole
5. Connect the Pipe of Indoor Unit
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Open-end
wrench
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Φ55/70mm
Rear piping hole
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Pipe
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Indoor pipe
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Indoor
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Insulating pipe
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Outdoor
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.
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6. Install Drain Hose
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4. Outlet Pipe
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Drain hose
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Outlet pipe
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Left
Rear right
Right
Cut off
the hole
46
Right
Rear left
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Installation and Maintenance
Service Manual
7. Connect Wire of Indoor Unit
8. Bind up Pipe
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Panel
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Screw
Wiring cover
(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)
Indoor and
outdoor power cord
Indoor unit
Gas
pipe
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Cable-cross
hole
Liquid
pipe
Band
Drain hose
Power connection
wire
Connection pipe
Drain hose
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Indoor power cord
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blue
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winding.
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black brown yellowgreen
Connect to outdoor unit
9. Hang the Indoor Unit
Wiring board
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connected by a professional.
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Installation and Maintenance
Indoor
Wall pipe
Outdoor
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Sealing gum
Upper hook
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Lower hook of
wall-mounting frame
Note:
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47
Service Manual
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8.6 Installation of Outdoor Unit
1. Fix the Support of Outdoor Unit(select it according to the
actual installation situation)
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expansion screws.
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screws are needed.
.
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N
Handle
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DRED
POWER
LN
Drain vent
Chassis
Outdoor drain joint
Drain hose
At least 3cm above the floor
2
3
blue black
brown
L
L
N
yellow-green
blue
brown
Indoor Unit
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2. Install Drain Joint(Only for Cooling and Heating Unit)
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3. Fix Outdoor Unit
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Foot holes
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6. Neaten the Pipes
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10cm.
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1. Use Vacuum Pump
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Installation and Maintenance
49