Electric Wiring - Gree GWH18RC-K3DNA1A Service Manual

NOTE:
All wires between indoor and outdoor units must be connected by the qualified electric contractor.
Electric wires must be connected correctly. Improper connection may cause malfunction.
Tighten the terminal screws securely.
After tightening the screws, pull the wire slightly to confirm whether it's firm or not.
Make sure that the electric connections are earthed properly to prevent electric shock.
Make sure that all wiring connections are secure and the cover plates are reinstalled properly. Poor installation may cause fire
or electric shock.
7.3.5 Installing of Indoor Unit
The piping can be output from right, right rear, leftor left rear.
1.When routing the piping and wiring from the left or right side of indoor unit, cut off the
tailings from the chassis when necessary(As shown in Fig.3)
(1)Cut off the tailing 1 when routing the wiring only;
(2)Cut off the tailing 1 and tailing 2 when routing both the wiring and piping.
2.Take out the piping from body case, wrap the piping, power cords, drain hose with the
tape and then make them pass through the piping hole. (As shown in Fig.4)
3.Hang the mounting slots of the indoor unit on the upper hooks of the mounting plate
and check if it is firm enough.(As shown in Fig.5)
4.The installation site should be 250cm or more above the floor.
7.3.6 Installing of Connection Pipe
1.Align the center of the pip flare with the relevant valve.
2.Screw in the flare nut by hand and then tighten the nut with spanner and
torque wrench referring to the following:
Hex nut diameter Tightening torque
Ф6
Ф 9.52
Ф 12
Ф 16
Ф 19
NOTE:
Connect the connection pipe to indoor unit at first and then to outdoor unit. Handle piping bending with care. Do
not damage the connection pipe. Ensure that the joint nut is tightened firmly, otherwise, it may cause leakage.

7.4.1 Electric Wiring

1.Remove the handle on the outdoor.
2.Take off wire cord anchorage. Connect and fix power connection cord to the terminal
board. Wiring should fit that of indoor unit.
3.Fix the power connection cord with wire clamps and then connect the corresponding
connector.
4.Confirm if the wire has been fixed properly.
5.Reinstall the handle．
NOTE:
Incorrect wiring may cause malfunction of spare part.
After the wire has been fixed, ensure there is frees pace between the connection and fixing places on the lead wire.
(N·m)
15 20
31 35
50 55
60 65
70 75
External connection
Gas side pipe
electric wire
Liquid side piping
Tailing 2
Gas side piping
Tailing 1
insulation
Fig.3
Finally wrap it
Water drainage pipe
with tape
Left
Right Left rear
Fig.4
Right rear
Fixing hook
Mounting
plate
Fig.5
Indoor unit piping
Taper nut Piping
Spanner
Torque
wrench
N(1) 2
YEGN BU BK BN
Indoor unit connection
Handle
Liquid side
Piping insulation
Mounting
plate
3