9
(8) Connect the piping. (See “5.REFRIGERANT PIPING WORK” and Fig. 10)
•
To avoid the influence of noise from the power supply line on the transmission wiring and the remote con-
troller wiring, these wirings must be kept as far as possible from the power/earth wirings. As shown in the
figure, keep the power supply wiring and the earth wiring together. Keep the transmission and remote con-
troller wirings together and route them maintaining a good distance from the power supply/earth wirings
(that is, on the other side of the power supply/earth wirings). Then, fix them securely on the refrigerant pipe.
•
Seal the piping through-hole with putty corking material.
(9) Push on both bottom edges of the indoor unit using both hands and hook the tab on the back of
the indoor unit onto the installation panel (1). (Refer to Fig. 9)
•
At this time remove the buffering material placed in step (6).
•
Make sure power supply wiring, transmission wiring, earth wiring and remote controller wiring are not
caught inside the indoor unit.
When screwing in the indoor unit
•
Remove the front grille.
(Refer to Fig. 7)
•
Secure the indoor unit to the installation panel (1) with the securing
screws (5).
(Refer to Fig. 11)
5. REFRIGERANT PIPING WORK
•
For the outdoor unit refrigerant piping, refer to the installation manual attached to the outdoor unit.
•
Carry out insulation of both gas and liquid refrigerant piping securely. If not insulated, it may cause water
leakage. For gas piping, use insulation material of which heat resistant temperature is not less than 120°C.
For use under high humidity, strengthen the insulation material for refrigerant piping. If not strengthened,
the surface of insulation material may sweat.
•
Before installation work, make sure that the refrigerant is R410A. (Unless the refrigerant is R410A, the nor-
mal operation cannot be expected.)
Secure with
vinyl tape.
Wrap the finishing tape overlapping at least half the width with
each wrap.
Wrap the finishing tape all the way to the L-shaped bend.
Seal with putty corking
material.
Drain hose
Wiring
Fig. 10
Refrigerant piping
A
A
arrow view
Power supply wiring and
earth wiring
Refrigerant piping
Transmission wiring and
remote controller wiring
Installation panel
(accessory) (1)
Refrigerant piping
Finishing Tape
(not included in
accessories)
M4 × 12L
(accessory) (5)
Fig. 11
