42
English
Ins
tallation
CAUTION
ŷ
If you need a pipe longer than specified in piping codes
and standards, you must add refrigerant to the pipe.
Otherwise, the indoor unit may freeze.
ŷ
While removing burrs, put the pipe face down to make
sure that the burrs do not get in to the pipe.
NOTE
ŷ
Excessive torque may cause gas leakage. When
extending the pipe with welding or brazing, ensure that
nitrogen is used during the welding or brazing process.
The joint must be accessible and serviceable.
CAUTION
ŷ
Tighten the flare nut at the specified torque. If the flare
nut is over-tightened, it may break to cause leakage of
refrigerant gas.
Step 2.8 Fixing the installation plate
You can install the indoor unit on a wall, window frame, or
gypsum board.
WARNING
ŷ
Make sure that the wall, window frame, or gypsum
board can withstand the weight of the indoor unit. If
you install the indoor unit in a place where it is not
strong enough to withstand the unit's weight, the unit
could fall and cause injury.
When fixing the indoor unit on a wall
Fix the installation plate to the wall giving attention to the
weight of the indoor unit.
NOTE
ŷ
If you mount the plate to a concrete wall using plastic
anchors, make sure that gaps between the wall and the
plate, created by projected anchor, is less than 0.79 inch
(20 mm).
When fixing the indoor unit on a window frame
1.
Determine the positions of the wooden
uprights to be attached to the window
frame.
2.
Attach the wooden uprights to the window
frame giving attention to the weight of the
indoor unit.
<Flare nut>
Liquid service port
<High pressure>
Gas service port
<Low pressure>
Correct
Inclined
Cracked
Uneven
thickness
Damaged
surface
Plastic
anchor
Wall
0.79inch
(20 mm)
Pipe bundle hole
(Unit : inch (mm))
Model
A
B
C
D
77
09/12
77
1.2(30)
3.8(96)
1.5(38)
1.2(30)
77
18/24
77
1.5(38)
5.0(126)
2.8(70)
1.5(38)
Pipe bundle hole: Ø 2.56 inch (Ø65 mm)