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Check of levelness
Check the levelness as follows. Use a level gauge or adjust the levelness with the following method.
2) Drain pipe
a)
Set the drain pipe as a declining gradient (1/50 ~ 1/100) and avoid to cross an over-hand ridge or to allow a trap on the way.
● Good piping ● Improper piping
b) When connecting the drain pipe to the unit, pay suffcient attention not to apply excess force to the piping on the unit
side. Also, fix the piping at a point as close as possible to the unit.
c) For drain pipe, use hard PVC ganeral purpose pipe VP-20 which can
be purchased locally. When connecting, insert a PVC pipe end securely
into the drain socket before tightening securly using the attached drain
hose and clamp. Adhesive must not be used connection of the drain
socket and drain hose (accessory).
● Adjust the bottom of indoor unit and the water
level as shown below.
Piping side
PVC hose
0~3 mm
Water level
Supply water
Slightly lower the piping side
1.5m~2mSupport fixture
Insulation
materials
Declining gradient
1/100 or more
Trap
Crossing
over-hang ridge
Air bleed
d) When there are plural number of drain pipes, arrange to position the converging pipe at about 100mm below the drain
outlet as shown below. Use a pipe of VP-30 or higher for the converging pipe.
e) Make sure to provide the thermal insulation for the hard vinyl chloride pipe and drain socket provided indoor.
!
"
Drain socket
Size different part
Drain hose
Should be as high as possible.
(Approx. 100 mm)
VP-30
Declining gradient 1/100 or more
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