Toshiba MMU-UP0151SH-E Installation Manual page 106

Attached hose VP25 vinyl chloride pipe
Drain pipe
band
(To be local procure)
connecting port
(Hard socket) Attached flexible hose
Socket for VP25 (To
Soft socket
be local procure)
Hard socket
Adhesive inhibited:
Use the attached flexible hose and hose band for
connecting the drain hose to the clear drain socket.
If applying the adhesive, socket will be damaged and
cause water leakage.
Align the attached hose band to
the end of hose, set the
tightening position upward, and
Drain pipe
then tighten it.
connecting port
(Transparent)
VP25 vinyl chloride
Flexible hose
pipe (To be local
(Accessory)
procure)
Socket for VP25 vinyl chloride pipe
(To be local procure)
 Connecting drain pipe
• Connect a hard socket (procured locally) to the hard
socket of the attached supplied flexible hose.
• Connect a drain pipe (procured locally) to the
connected hard socket.
REQUIREMENT
• Connect hard vinyl chloride pipes securely using an
adhesive for vinyl chloride to avoid water leakage.
• It takes some time until the adhesive is dried and
hardened (refer to the manual of the adhesive). Do not
apply stress to the joint with the drain pipe during this
time period.
209-EN
 Drain up
When a down-gradient cannot be secured for the
drainpipe, drain-up piping is possible.
• The height of the drain pipe must be 850 mm or less
from the bottom of the ceiling.
• 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.
• Set downward grading immediately after raising up
vertically.
300 mm or less
Indoor unit
Underside of ceiling
 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.
Check draining also when installed in heating period.
By using a pitcher or hose, pour water (1500 - 2000 cc)
into the discharge port before installation of the ceiling
panel.
Pour water gradually so that water does not spread on
the motor of the drain pump.
CAUTION CAUTION
Pour water gently so that it does not spread around
inside the indoor unit, which may cause a malfunction.
– 105 –
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 printed circuit board inside
the electrical parts box. (Before doing this, the power must be turned off.)
• Connect a 208 V to 240 V supply voltage to (L) and (N) on the power supply terminal block. (Do not apply a 208 V
to 240 V voltage to (Uv (U1)), (Uv (U2)), (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.
• After checking that the water drains and there are no water leaks, turn off the power, connect the float switch
connector to its original location (CN34) on the printed circuit board, and return the electrical parts box to its
original position.
220 V - 240 V, 50 Hz
208 V - 230 V, 60 Hz
White
Black
Red
Black
Pull out connector CN34
(Red) from P.C. board.
 Perform heat insulating
• As shown in the figure, cover the flexible hose and
hose band with the attached heat insulator up to the
bottom of the indoor unit without gap.
• Cover the drain pipe seamlessly with a heat insulator
to be procured locally so that it overlaps with the
attached heat insulator of the drain connecting
section.
Heat exchanger
Insert the edge of
hose into the drain
pan and bend it
downward.
Drain pan
Power supply line
Float switch connector (3P)
(CN34: Red)
Pump
Water (1500 cc to 2000 cc)
Vessel
Wrap the attached heat insulator seamlessly from
the surface of the indoor unit.
Heat insulator
Heat insulator of the
drain connecting (Locally procured)
section (Accessory)
• Direct the slits and seams of the heat insulator
upward to avoid water leakage.
210-EN