Toshiba RAS-M07U2DVG-E Installation Manual page 13

ML.book Page 12 Wednesday, March 14, 2018 10:28 AM
3
Insert the flexible drain hose into the lower drain pipe
and fix it with the hose band.
Drain up
When a down-gradient cannot be secured for the drain pipe, drain-up
piping is possible.
• The height of the drain pipe must be 350 mm or less from the
underside of the indoor unit.
• Take the drain pipe out of the drain pipe joint with the indoor unit in
300 mm or less, and bend up the pipe vertically.
• Immediately after the pipe is bent up vertically, lay the pipe making a
down-gradient.
Check the draining
In the test run, check that water drain is properly performed and water does not leak from the connecting part of the
pipes. When doing this, also check that no abnormal sounds are heard from the drain pump motor. Check draining
also when installed in heating period.
When the electrical and wiring work has been completed
Pour some water by following the method shown in the following figure. Then, while performing a cooling operation,
check that the water drains from the drain pipe connecting port (transparent) and that no water is leaking from the
drain pipe.
When the electrical and wiring work has not been completed
• Disconnect the float switch connector (3P: red) from the connector (CN34: red) on the P.C. board inside the
electrical control box. (Before doing this, the power must be turned off.)
• Connect a 220 V to 240 V supply voltage to (1) and (2) on the power supply terminal block. (Do not apply a 220 V to
240 V voltage to (A), (B) of the terminal block. Otherwise, the printed circuit board may be damaged.)
• Pour the water by following the method shown in the following figure. (Amount of water poured: 1500 cc to 2000 cc)
• When the power is turned on, the drain pump automatically starts running. Check whether the water is draining from
the drain pipe connecting port, and check that no water is leaking from the drain pipe.
EN-23
• After checking that the water drains and there are no water leaks, turn off the power, connect the float switch
Lower pipe
Hose band
Flexible
drain hose
For drain pipes that will be
connected after setup, make a
downward slope of 1/100 or more.
Flexible drain hose
• As shown in the figure, cover the flexible hose and hose band with the attached heat insulator up to the bottom of
(Accessory)
• Cover the drain pipe seamlessly with a heat insulator locally procured so that it overlaps with the attached heat
300 or less
Drain up setup dimensions
– 12 –
connector to its original location (CN34) on the P.C. board, and return the electrical control box to its original
position.
220 V to 240 V
White
Black
Black
Black
Pull out connector CN34
(Red) from P.C. board.
Access panel
Heat insulating process
the indoor unit without gap.
insulator of the drain connecting section.
Wrap the attached heat insulator seamlessly
from the surface of the indoor unit.
Heat insulator of the
drain connecting
section (Accessory)
Banding band (Locally procured)
* Direct the slits and seams of the heat insulator
upward to avoid water leakage.
Installation Manual
Supply water hose
Heat insulator
(Locally procured)
EN-24