ELECTRICAL WORK
C: Putting Nut On
Remove flare nuts attached to indoor and
outdoor unit, then put them on pipe/tube
having completed burr removal.(not possible
to put them on after flaring work)
D: Flaring Work
Firmly hold copper pipe in a die in the
dimension shown in the table below.
Outer diam.
A(mm)
(mm)
Max.
Min.
6.35
1.3
0.7
9.52
1.6
1.0
12.7
1.8
1.0
Tightening Connection
Flare nut
Copper tube
Fig.17
Handle
Bar
Bar
Yoke
Cone
Copper pipe
Clamp handle
Red arrow mark
Align the center of the pipes.
Sufficiently tighten the flare
nut with fingers, and then tighten
it with a wrench and torque wrench
as shown in Fig.20 & 21.
Outer
Torque
Additional Torque
Diam.
Fig.18
Indoor unit tubing Flare nut
Tube
11.8 Ft. Lbs.
Fig.19
12
26.55 Ft. Lbs.
Caution
Excessive torque can break the nut.
.
Electrical Work
Fig.20
Electric safety regulations for the initial Installation
1. If there is an unsafe power supply, the technician should refuse
to install the air conditioner and explain to the client what the problem is.
2. Power voltage should be in the range of 90%~110% of rated voltage.
3.
The GFCI protector and main power switch with a 1.5 times capacity of Max. Current
of the unit should be installed.
4. Ensure the air conditioner is grounded well.
5. Refer to the Electrical Connection Diagram located on the panel of the outdoor
unit to connect wires.
6. All wiring must comply with local and national electrical codes and be installed
by licensed electricians.
7. An individual branch circuit and single receptacle used only for this air conditioner must be
available. See the following table for suggested wire sizes and fuse specifications:
9
11.06 Ft. Lbs
.
18.44 Ft. Lbs. 19.18 Ft. Lbs.
25.80 Ft. Lbs.
1/4”
3/8”
1/2”