Haier AC142ACBEA Service Manual page 116

(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 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.
Good piping
Suspension
1.5m ~ 2m
bolts
A downhill grade
Heat
of 1/100 or more
insulation
(b)
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.
(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.)
Standard tap (at shipping)
White White
Blue Blue
Yellow Yellow
Red Red
M10 nut
Main unit
Piping side
Supply water
Water level
0~5 mm
(0~0.2")
Bring the piping side slightly lower.
High speed tap
White
Black
Blue White
Yellow
Blue
Red Red
Inproper piping
Air vent
Stage
difference
part
Drain socket
Drain socket
Pipe cover(large)
[for insulation]
(accessory)
Main unit
Drain hose
(accessory)
Clamp
(accessory)
Adhesion
Pipe cover(small)
[for insulation]
(accessory)
Hanging bolt
M10 washer
M10 spring washer
PVC hose
Avoid riding across an elevation
Keep free from traps
Do not pipe under water
Drain hose
VP 25 joint
(field purchased)
VP 25
(field purchased)
Pipe cover
[for insulation]
(field purchased)