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15
(5) Installation of indoor unit
Fix the indoor unit to the hanger bolts.
If required, it is possible to suspend the unit to the beam, etc.
Directly by use of the bolts without using the hanger bolts.
When the dimensions of main unit and ceiling holes does not match, it can be adjusted with the slot
holes of hanging bracket.
Note
Adjusting to the levelness
(a) Adjust the out-of levelness using a level or by
the following method.
Make adjustment so that the relation between
the lower surface of the unit proper and water
level in the hose becomes as given below.
(b) Unless the adjustment to the levelness is made properly, malfunctioning or failure of the float
switch may occur.
Tap selection on blower unit
(When the high performance filter is used.)
Taps of blower unit are set at the standard selection at the shipping from factory. Where the static
pressure is raised by employing such option as the high performance filter, etc., change the connection
of connectors provided at the flank of control box as shown below.
(6) Drain Piping
(a) Drain piping should always be in a downhill grade (1/50~1/100) and avoid riding across an
elevation or making traps.
When connecting the drain pipe to 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.
For drain pipe, use hard PVC general purpose pipe
VP-25(I.D.1") which can be purchased locally. When
connecting, insert a PVC pipe end securely into the
drain socket before tightening securely using the
attached drain hose and clamp. Adhesive must not
be used connection of the drain socket and drain
hose (accessory).
Drain hose
Stage
difference
part
Drain socket
Drain socket
Main unit
VP 25 joint
(field purchased)
Pipe cover(large)
[for insulation]
(accessory)
VP 25
(field purchased)
Pipe cover
[for insulation]
(field purchased)
Drain hose
(accessory)
Pipe cover(small)
[for insulation]
(accessory)
Clamp
(accessory)
Adhesion
PVC hose
Piping side
Supply water
Water level
0~5 mm
(0~0.2")
Bring the piping side slightly lower.
Hanging bolt
M10 nut
Main unit
M10 washer
M10 spring washer
Do not pipe under water
Keep free from traps
Avoid riding across an elevation
Air vent
Inproper piping
Good piping
1.5m ~ 2m
Suspension
bolts
Heat
insulation
A downhill grade
of 1/100 or more
(b)
(c)
Red
Yellow
White
Standard tap (at shipping) High speed tap
Black
White
Connector white
Connector white
Control box side
Moter side
Moter side
Red
Blue
Red
Yellow
White
Blue
Red
Yellow
White
Blue
White
Blue
Red
Installation Manual For Indoor Unit