Multi Variable Air Conditioners Ducted Type Indoor Unit
8
NOTICE!
1)
Before
startup
,
make sure to securely connect
all
refrigerant lines
, drainage
hose
,
control
wire for
the
wired controller,
and
connection wire for indoor unit.
2)
When drilling holes on ceiling (air return outlet or air outlet), you
will
need to reinforce
the ceiling to prevent vibration. For detail
s
, please consult
the
user or builder.
3)
If
ceiling reinforcement is needed
, please install a beam bracket, and then put
the unit
on the beam bracket.
(3)
Adjust the unit to the right position.
(4)
Check
to make sure the unit is level
.
Once
installed, remember to check
to
see that the whole unit is properly positioned.
It should be
horizontal from front to back and slant
ed
1% from left to right,
in the directon of d
rainage
.
Fig 4.1.8
(5) Remove the washer locating plate and then tighten the nut on it.
4.2 Refrigerant Pipe Connection
(1) Guide
the flaring port of copper pipe
to
the center of screwed joint and then tighten
the
flaring nut with hand as shown in fig 4.2.1.
(2)
Tighten the flaring nut with torque wrench.
Fig 4.2.1
(3)
Use
a
pipe bend
er
when bending the pipe and
do not over bend.
(4)
Wrap the
refrigerant
pipe and joint with
insulation
and secure
firmly with tape.
Torque for tightening nut
Pipe diameter
mm(in.)
Torque(N·m)
Φ
6.35(1/4)
15
～
30
Φ
9.52(3/8)
35
～
40
Φ
12.7(1/2)
45
～
50
Φ
15.9(5/8)
60
～
65
Φ
19.05(3/4)
70
～
75
