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17
Installation of Indoor Unit con’t
Connecting Indoor and Outdoor Electric Wires
(1) Open the front panel.
(2) Remove the wiring cover connect and fix power connection
cord to the terminal board as shown in Fig 6.
(3) Make the power connection cord pass through the hole at
the back of indoor unit.
(4) Reinstall the cord anchorage and wiring cover.
(5) Reinstall the front panel.
Note: AYX09NCJ and AYX12NCJ indoor units may be
supplied with 3 pin power cable.
Note: All wires between indoor and outdoor units must be connected by a qualified electrical
contractor.
● Electric wires must be connected correctly. Improper connection may cause malfunction.
● Tighten the terminal screws firmly.
● After tightening the screws, pull the wire slightly to confirm whether it's firm or not.
● Make sure that connections are earthed and grounded 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.
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.7).
(i) Cut off the tailings 1 when routing the wiring only;
(ii) Cut off the tailings 1 and tailings 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.8)
(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.9)
(4) The installation site should be 250cm or more above the floor.
Installation of Connection Pipe
(1) Align the centre of the piping flare with the related valve.
(2) Screw in the flare nut by hand and then tighten the nut with
spanner and torque wrench by referring to the following:
Hex nut diameter Tightening torque (N-m)
Ф 6
15～20
Ф 9.52
30～40
Ф 12
45～55
Ф 16
60～65
Ф 19
70～75
Note: Connect the connection pipe to indoor unit at first and then to
outdoor unit. Handle pipe bending with care. Do not damage the connection pipe. Ensure that the tapered
nut is tightened firmly, otherwise, it may cause leakage.