
18
3-5. Checking the Drainage
After wiring and drain piping are completed, use the following
procedure to check that the water will drain smoothly. For this,
prepare a bucket and wiping cloth to catch and wipe up spilled
water.
(1) Connect power to the power terminal board (R, S
terminals) inside the electrical component box.
(2) Slowly pour about 1,200 cc of water into the drain pan to
check drainage. (Fig. 3-12)
Drainage check
Over 100 mm
Plastic container
for water intake
Water (Approx. 1,200 cc)
Drain pan outlet
Fig. 3-12
(3) Short the check pin (CHK) on the indoor control board and
operate the drain pump. Check the water flow through the
transparent drain pipe and see if there is any leakage.
(4) When the check of drainage is complete, open the check
pin (CHK) and remount the tube cover.
CAUTION
Be careful since the fan will start when you short the pin on
the indoor control board.
■
Wall-Mounted Type (HW Type)
3-6. Removing the Rear Panel from the Unit
(1) Remove the set screws used to fasten the rear panel to the
indoor unit during transportation.
(2) Press up on the rear panel at the 2 locations shown by the
arrows and remove the rear panel (Fig. 3-13).
Screws used during
transportation
Remove the rear panel
Press
Fig. 3-13
NOTE
Tubing can be extended in 4 directions. Select the direction
which will provide the shortest run to the outdoor unit. (Fig. 3-14)
Left tubing
Right-
rear tubing
(recommended)
Left-rear tubing
Right tubing
Fig. 3-14
3-7. Selecting and Making a Hole
(1) Remove the rear panel from the indoor unit and place it
on the wall at the location selected. Fix the rear panel and
hook the unit onto the wall temporarily. Make sure the unit
is horizontal using a carpenter’s level or tape measure to
measure down from the ceiling.
(2) Determine which notch of the rear panel should be used.
(Fig. 3-15)
Center of left
rear tubing hole
Center of right
rear tubing hole
Tubing hole diameter
ø80
Fig. 3-15
(3) Before drilling a hole, check that there are no studs or
pipes behind the determined location.
The above precautions are also applicable if tubing goes
through the wall in any other location.
(4) Using a sabre saw, key hole saw or hole-cutting drill
attachment, make a hole (dia. 80 mm) in the wall. (Fig. 3-16)
Indoor
side
Outdoor
side
Fig. 3-16
Airwell̲PAC-i̲eng.indb 18
Airwell̲PAC-i̲eng.indb 18
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2009/07/09 16:13:22
Содержание OU-PSINV-25HR
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