Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 575

(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.
Note
When the dimensions of main unit and ceiling holes does not match, it can be adjusted with the slot holes of hanging bracket.
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
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 pro-
vided at the flank of control box as shown below.
Standard tap (at shipping)
(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.
• Good piping
Suspension
bolts
Heat
insulation
(b) When connecting the drain pipe to unit, pay sufficient 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 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).
(When the high performance filter is used.)
Red Red
Blue
Black Black
White White
1.5m ~ 2m
A downhill grade
of 1/100or more
Piping side
Supply water
Washer level
0 ~ 5mm
(0 ~ 0.2")
Bring the piping side slightly lower.
High speed tap
Red Blue
Black
Black Brown
White White
• Improper piping
Air vent
Drain socket
Drain socket
Main unit
Clamp
(accessory)
Pipe cover (small)
[for insulation]
(accessory)
FDR-H
Hanging bolt
M10 nut
M10 washer
M10 spring washer
Main unit
PVC hose
Avoid riding across an ehevation
Keep free from traps
Do not pipe under water.
Stage
Drain hose
difference
part
VP25 joint
Pipe cover (large)
(field purchased)
[for insulation]
(accessory)
VP25
Drain hose
(field purchased)
(accessory)
Adhesion
Pipe cover
[for insulation]
(field purchased)
573