30
ELECTRICAL WORK
Caution
Align the center of the pipes.
Sufficiently tighten the flare
nut with fingers, and then tighten
it with a spanner and torque wrench
as shown in Fig.58 & 59
Tightening Connection
Excessive torque can break nut
depending on installation conditions.
Fig.59
Indoor unit tubing
Flare nut
Pipings
Fig.58
Electric safety regulations for the initial Installation
1. If there is serious safety problem about the power supply, the technicians should refuse
to install the air conditioner and explain to the client until the problem is solved.
2. Power voltage should be in the range of 90%~110%of rated voltage.
3. The creepage protector and main power switch with a 1.5 times capacity of Max. Current
of the unit should be installed in power circuit.
4. Ensure the air conditioner is grounded well.
7. An individual branch circuit and single receptacle used only for this air conditioner must be available.
5. According to the attached Electrical Connection Diagram located on the panel of the outdoor
unit to connect the wire.
6. All wiring must comply with local and national electrical codes and be installed
by qualified and skilled electricians.
Electrical work
Outer
diam.
Tightening
torque(N.cm)
Additional tightening
torque(N.cm)
6.35
12.7
9.52
1500
(153kgf.cm)
1600
(163kgf.cm)
3500
(357kgf.cm)
3600
(367kgf.cm)
2500
(255kgf.cm)
2600
(265kgf.cm)
When select a 24K indoor unit,the manifold
assembly (not supplied) should be purchased
and installed together.
Installation method:when connecting the pipe,
connect the liquid pipe (thin pipe) and gas pipe
(thick pipe) of the manifold assembly to the
high pressure valve and low pressure valve of
the outdoor unit as identified with their
respective matched numbers A & B,as shown
below.
When select a 24K indoor unit
A
A
B
B
C
Fig.60