Specifications

ASBS
41
● Do not install an air bleeder as this may cause
water to spray from the drain pipe outlet.
(Fig. 3-27)
● If it is necessary to increase the height of the drain
pipe, the pipe can be raised a maximum of 59 cm
from the bottom of the ceiling. Do not raise it any
higher than 59 cm, as this could result in water
leaks. (Fig. 3-28)
● Do not install the pipe with an upward gradient
from the connection port. This will cause the drain
water to flow backward and leak when the unit is
not operating. (Fig. 3-29)
● 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 con-
nection to the unit. Fasten the pipe to a wall, frame,
or other support as close to the unit as possible.
(Fig. 3-30)
● Provide insulation for any pipes that are run
indoors.
3-8. 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) Short the check pin (CHK) on the indoor control
board and operate the drain pump.
(3) Pour water into the drain pan using a siphon pump
through the air outlet grille. (Fig. 3-31) Check the
water flow through the transparent drain pipe and
see if there is any leakage.
CAUTION
Fig. 3-27
Fig. 3-28
Fig. 3-29
Fig. 3-30
Fig. 3-31
Air bleeder prohibited
CAUTION
Be careful since the fan will
start when you short the
pin on the indoor control
board.
59 cm or less
30 cm or less
(as short as possible)
Upward gradient prohibited
Support
pieces
Siphon pump
04-396 Inverter-W_a-p50 ARGO 12/21/04 9:38 AM Page 41