Installation Manual
28
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 Installation of Indoor Unit
●The piping can be output from right, right rear, left or 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 make them 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 Installation of Connection Pipe
1.Align the center of the pipe 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:
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.
(N·m)
Ф6
Ф 9.52
Ф 12
31
̚
35
15
̚
20
50
̚
55
Ф 16
60
̚
65
Ф 19
70
̚
75
Hex nut diameter Tightening torque
Spanner
Torque
wrench
Piping
Taper nut
Indoor unit piping
7.4 Installation of Outdoor Unit
7.4.1 Electric Wiring
1. Remove the handle of outdoor unit.
2. Take off wire cord anchorage. Connect and fix power
connection cord and signal control wire to the terminal board. Wiring should
fit that of indoor unit.
3. Fix the power connection cord and signal control wire 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.
েৢ
Mounting
plate
Fixing hook
Mounting
plate
Right
Right rear
Left rear
Left
Tailing 1
Tailing 2
Finally wrap it
with tape
Gas side piping
insulation
Water drainage pipe
Liquid side
Piping insulation
Gas side piping
External connection
electric wire
Liquid side piping
Fig.3
Fig.4
Fig.5
Handle
GWH18PD-K3NNA1A/O
GWH24ND-K3NNB1A/O
Indoor unit connection
Indoor unit connection
N(1) 2
4
5
blue black violet orange
yellow-
green
N(1)
5
3
4
2
blue black brown violet
orange
yellow-
green
