Specifications
AS1S
35
(4) Adjust the distance between the unit and the
opening in the ceiling to give clearances of 15 mm
in the front and back directions and 70 mm in the
right and left directions so that the height between
the bottom surface of the flange of the unit and the
bottom surface of the ceiling is 37 mm, and the
air-intake side is 5 mm. To check these dimen-
sions for positioning the unit, use the installation
gauge which is taped on the unit. (Fig. 3-9)
(5) Confirm all clearances with the installation gauge
as follows:
● Between each side of the unit and the opening of
the ceiling:
15 mm
70 mm
● Between bottom of unit flange and ceiling material:
5 mm (2 corners)
37 mm (2 corners)
Improper clearance can lead to poor mounting of the
ceiling panel, causing condensation and dripping.
(Fig. 3-9)
3-3. Installing the Drain Piping
(1) Prepare standard hard PVC pipe (O.D. 32 mm) for
the drain and use the supplied drain hose and
hose band to prevent water leaks.
The PVC pipe must be purchased separately. The
unit’s transparent drain port allows you to check
drainage. (Fig. 3-10)
Fig. 3-9
Fig. 3-10
Fig. 3-11
37
70
5
Installation
g
au
g
e
15
Vin
y
l clamps
Drain insulator (supplied)
Drain hose
(supplied)
(not supplied)
(not supplied)
Packing (supplied)
VP-25
Align the hose band with end of the
hose, and tighten so that it does not
contact the bead.
Drainage check
section on drain port
(transparent)
Hard PVC
socket VP-25
Hard PVC
pipe
PVC adhesive
Bead
CAUTION
(2) After checking the drainage, wrap the supplied
packing and drain pipe insulator around the pipe,
then secure it with the supplied clamps. (Fig. 3-11)
Make sure the drain pipe has a downward gradient
(1/100 or more) and that there are no water traps.
NOTE
● Do not use adhesive at the drain connection
port on the indoor unit.
● Insert the drain pipe until it contacts the socket,
as shown in the figure at right, then secure it
tightly with the hose band.
● Tighten the hose clamps so their locking nuts
face upward. (Fig. 3-10)
● Do not use the supplied drain hose bent at a 90°
angle. (The maximum permissible bend is 45°.)
Unit: mm
04-396 Inverter-W_a-p50 ARGO 12/21/04 9:38 AM Page 35