-
65
-
7
Return air duct: Use square duct.
8
Return air port with canvas duct
1) Connection of intake and exhaust ducts.
2) Duct connecting position.
< Outside air intake >
a) Use side air intake port.
b) In case of simultaneous intake and exhaust, the side air intake port cannot be used, therefore, take air from the
midway air intake port along the intake duct.
< Exhaust >
Make sure to use suction as well.
c) Use a side exhaust port.
3) Duct connection
Use intake and exhaust duct flange of separately sold (for connection of
125mm round duct) to connect
125mm
round duct. The duct clamped by bands must be thermally insulated to prevent dew condensation.
Looking from top of unit
Exhaust port
Side fresh air intake port
Intake duct
(square duct)
Outside air intake
port midway
of return duct
Fig.2
Fig.1
(iv) 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.
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 piece
(accessory)
Adhesion
VP-25
(local procurement)
Pipe cover [insulation]
(local procurement)
Pipe cover (large)[insulation]
(accessory)
●
Good piping
●
Improper piping
