Toshiba MMU-AP0071MH - Manual (Page 13)

10
Connection of drain pipe
• Connect the hard socket (Procured locally) to the
hard socket side of the supplied flexible hose which
has been installed.
• Connect the drain pipes (Procured locally) in turn to
the connected hard sockets.
REQUIREMENT
• Using a adhesive agent for vinyl chloride,
connect the hard vinyl chloride pipes so that
water does not leak.
• Allow sufficient time for the adhesive to set and
harden. (Refer to the instructions of the
adhesive.)
Drain up
When it is not possible to achieve a natural downward
slope on the drain pipe, you can create a vertical lift
(Drain up) on the pipe.
• Set the height of the drain pipe within 850 mm from
the bottom surface of the ceiling.
• The drain pipe should be piped from the drain pipe
connecting port horizontally for a maximum of
300 mm and then piped vertically.
• After piping the vertical lift, ensure the pipework is
set to a downward gradient.
Check the draining
After completion of drain piping,
Check water drains away and that no water leaks from
any of the connecting parts. At the same time check
for any abnormal sounds from the drain pump.
Ensure drainage is checked during cooling mode.
When the electric work has finished:
• Before installing the ceiling panel, pour water as
shown in the following figure, check water drains
from the drain pipe connecting port (Transparent) in
COOL mode and then check there are no water
leaks from the drain pipes.
When the electric work has not finished:
• Pull out the float switch connector (3P: Red) from
P.C. board connector (CN34: Red) of the electric
parts box. (Ensure the power is turned off.)
• Connect the single-phase 220-240V, 1N, 50Hz (or
220V, 1N, 60Hz) power to the terminal blocks R (L)
and S (N). (Never apply 220-240V to (A), (B), (U1)
and (U2).)
• Pour water referring to the figure.
(Amount: 1500 cc to 2000 cc)
• When the power is turned on, the drain pump motor
drives automatically. Check water is drained from
the drain pipe connecting port (Transparent), and
then check there is no water leak from the drain
pipes.
• After checking for water leaks on the drain, turn off
the power supply, and re-attach the float switch
connector to the original position (CN34) on the P.C.
board and refit the electric parts box.
Rising up
627.5mm or less
Rising up 850mm or less
300mm
or less
Indoor unit
Underneath of ceiling
220–240V, 1N ~ , 50Hz
220V 1N ~ , 60Hz
White
Black
CN34
(RED)
Black
Red
Pull out connector CN34 (Red) from P.C. board.
R(L) S(N)