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3-4. Installing the Drain Piping
(1) Prepare standard hard PVC pipe for the drain and
use the supplied drain hose and hose band to pre-
vent water leaks.
The PVC pipe must be purchased separately. The
transparent part allows you to check drainage.
(Fig. 3-6)
(2) After checking the drainage, wrap the supplied
packing and drain pipe insulator around the pipe.
(Fig. 3-7)
Ensure the drain pipe has a downward gradient (1/100
or more) and that there are no water traps.
NOTE
CAUTION
Tighten the hose clamps so
their locking nuts face upward.
(Fig. 3-6)
CAUTION
●
Do not install an air bleeder tube, as this may cause
water to spray from the drain tube outlet. (Fig. 3-8)
●
If it is necessary to increase the height of the drain
pipe, the section directly after the connection port
can be raised a maximum of 19-11/16 in. Do not
raise it any higher than 19-11/16 in., as this could
result in water leaks. (Fig. 3-9)
●
Do not install the pipe with an upward gradient from
the connection port. This will cause drain water to
flow backwards and leak when the unit is stopped.
(Fig. 3-10)
●
Do not apply force to the piping on the unit side
when connecting the drain pipe. The pipe should
not be allowed to hang unsupported from its
connection to the unit. Fasten the pipe to a wall,
frame, or other support as close to the unit as
possible. (Fig. 3-11)
●
Provide insulation for any drain pipe that is run
indoors.
Drain hose
(supplied)
Packing
(supplied)
Transparent part for
checking drainage
Hose band
(supplied)
Drain hose
adapter
(supplied)
Hard PVC pipe
(not supplied)
Fig. 3-6
Drain insulator (supplied)
Fig. 3-7
Air bleeder
Fig. 3-8
11-3/4 in. or less (as short as possible)
19-11/16 in. or less
Fig. 3-9
Upward gradient
Fig. 3-10
Support
pieces
Fig. 3-11
07-115 SSHP_II 5/7/07 3:59 PM Page 28