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ELECTRICAL WORK
Tightening Connection
• 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
Outer
Tightening
diam.
torque(N.cm)
1500 (153kgf.cm)
Φ6.35
2500 (255kgf.cm)
Φ9.52
3500 (357kgf.cm)
Φ12.7
Caution
• Excessive torque can break nut
depending on installation conditions.
When select a 24K indoor unit
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.
Electrical work
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.
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.
7. An individual branch circuit and single receptacle used only for this air conditioner must be available.
Additional tightening
torque (N.cm)
1600 (163kgf.cm)
2600 (265kgf.cm)
3600 (367kgf.cm)
11
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