Specifications

197
4) Bend a lot less abruptly. (Make the bend radius a lot larger.)
5) When connecting the indoor unit to the duct flange of the blow outlet, attach the insulation material to the fixed portion to
protect it from condensation.
6) Conduct the duct work before ceiling attachment.
7) Make sure to keep the suction duct warm to protect it from condensation.
8) Install the blowout hole where air can flow all over the room.
9) Make sure to install the inspection opening in the ceiling. It is needed for the maintenance of electrical parts, the motor
and other parts.
(d) Drain piping
1) Drain piping should always be in a downhill grade (1/50-1/100) and avoid riding across an elevation or makeing traps.
1) Calculate air capacity and the outside static pressure to select the duct’s length and shape, and blow outlet.
Caution
Take care that the outside atatic pressure does not exceed 30 Pa. The unit has condensation owing to the decrease in air
capacity, possibly causing the ceiling and household goods to become wet.
2) The indoor unit is not provided with an air filter. Assemble it into the suction grill for which cleaning is easy.
3) Make the duct the shortest in length.
Bad example Bad example Good example
2) 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.
3) For drain pipe, use hard PVC general purpose pipe VP-25
which can be purchased locally. When connecting, insert
a PVC pipe end securely into the drain socket before tight-
ening securely using the attached drain hose and clamp.
Adhesive must not be used connection of the drain socket
and drain hose (accessory).
1.5 m ~ 2m
Suspension
bolts
Heat
insulation
A downhill grade
of 1/100 or more
Air vent
Avoid riding across an elevation
Keep free from traps
Do not pipe under water
Drain socket
Level difference part
Drain hose
Joint for VP-25
(local procurement)
Pipe cover (small)[insulation]
(accessory)
Drain socket
Indoor
unit
Clamp
(accessory)
Drain hose
(accessory)
Adhesion
VP-25
(local procurement)
Pipe cover [insulation]
(local procurement)
Pipe cover (large)[insulation]
(accessory)
● Good piping
● Improper piping