Electrical Power Wiring; How To Install The Ceiling Panel - Panasonic S-12MU1U6 Installation Instructions Manual

3-18. Electrical Power Wiring

(1) Wiring connections
The power inlet is on the side of the indoor unit where the
refrigerant tubing is located. The electrical component
box is on the lower air intake surface of the indoor unit.
(Fig. 3-69)
(2) Wiring
WARNING
●
Route the power wiring into the indoor unit through the power inlet on the side of the unit. At this time, be
sure that the wiring passes through the power inlet in the unit power section. If the wiring does not pass
through this inlet, it may become pinched by the ceiling panel, and may result in fi re.
●
Pass the wiring through the power inlet on the electrical component box and connect it to the terminal plate.
Then fasten the wiring in place with the clamp.

3-19. How to Install the Ceiling Panel

Component Parts
Part name Quantity
Ceiling panel 1
3-19-1. Before Installing the Ceiling Panel
Checking the position of the indoor unit
(1) Check that the dimensions of the ceiling opening are
the following:
28-47/64" × 23-15/64"
(2) Check that the positions of the ceiling surface and
indoor unit are as shown in Fig. 3-70. If the positions
of the ceiling surface and indoor unit are not correct,
problems such as air leakage, water leakage, and fl ap
operation trouble may occur.
●
Do not rest the panel facing downwards, lean up
against a wall, or leave it sitting on top of a protruding
object. Doing so may scratch the panel surface.
●
Do not apply excessive force to the fl ap. (Fig. 3-71)
(Doing so may damage the fl ap.)
VRF_Indoor_US.indb 26 VRF_Indoor_US.indb 26
Refrigerant tubing joint
(liquid tube)
Appearance Part name
Washer-head
screw
Screw
Be sure that this distance is within the range of 25/32 – 1 in.
If it is not within this range, malfunction or other problems may result.
26
Refrigerant tubing joint Drain pipe connection
(gas tube) (Be sure to connect the
supplied flexible hose.)
Fig. 3-69
Quantity Appearance
4
4 × 12 or 5/32" × 15/32"
2
For fastening side
panel
Indoor unit
Ceiling opening dimension
Ceiling surface
Fig. 3-70
Flap
Fig. 3-71
Inter-unit Control Wiring
Power supply outlet
M5 × 40
or
5/16" × 9/16"
2011/09/30 12:23:06 2011/09/30 12:23:06