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As long as possible (Approx. 100mm)
VP 30 or more
Downward grading
1/100 or more
VP 30VP 30VP 30
Less than 20m
Extended
ventilating pipe
Drain-up
If down-slope cannot be set on a drain pipe, drain-up is
possible.
• Set the height of drain pipe 550mm or less from the bottom
face of the indoor unit.
• Pull out the drain pipe from connecting port of the drain
pipe of the indoor unit by 100mm or shorter, and stand up it
vertically.
• After standing up it vertically, arrange immediately so that it
is set with down-slope.
Connection of the drain hose
• Insert the drain hose completely into
the connecting port of the drain pan.
• Apply thermal insulation surely to the
drain hose with socket thermal insulation seal.
Check of water drain
After drain pipe work, check that water is drained and there is
no water leak from pipe connection portion. In this time, also
check there is no trouble of motor sound of the drain pump.
Be sure also to perform this check when installing the unit in
heating time.
After electric piping work
• Before installing a panel, infuse water as shown in the
following figure. By operating the unit in COOL mode,
check that water is drained from the drain pipe and then
check there is no water leak from the drain pipe.
Before electric piping work
• Pull out the float switch connector (3P: Red) from
connector (CN34: Red) on P.C. board of the electric parts
box. (In this time, be sure to check the power has been
turned off.)
• Connect 200V single-phase to R and S of the power
supply terminal block. (Never apply 200V to
A , B , U1
, and U2 of the terminal block, otherwise it
causes a trouble of P.C. board.
• Infuse water followed to the figure below.
(Water amount: 1500cc to 2000cc)
• The drain pump automatically operates by power-on.
Check that water is drained from the drain pipe and then
check there is no water leak from the drain pipe.
• After checking water drain and water leak, turn off the
power, connect the float switch connector to the original
position (CN34) of P.C. board, and then return the electric
parts box to the original position.
Standing-up: 550mm or less
100mm or
shorter
Indoor unit
Insert the end of hose
up to the near of suction
port of drain pump.
Service plate
Black
Red
White
Black
R S
200–240V ~
single-phase
Pull out CN34 connector
from P.C. board.