20
•
Insert the flare nuts mounted on the connection parts of both indoor
and outdoor unit into the copper pipes.
•
The exact length of pipe protruding from the face of the swaging block
is determined by the flaring tool. See Figure 13C.
•
Affix the pipe firmly on the swaging block. Match the centers of both
the flare die and the flaring punch. Tighten the flare punch fully.
Piping Connection to the Units
•
Align the center of the piping and sufficiently tighten the flare nut
with your fingers. See Figure 14.
•
Tighten the flare nut with a torque wrench until the wrench clicks.
When tightening the flare nut with the torque wrench, make sure you
tighten in the direction of the arrow on the wrench.
•
The refrigerant pipe connections are insulated by closed cell polyure-
thane.
Inch
mm
Imperial
(Wing-Nut Type)
Rigid
(Clutch Type)
1/4
6.35
1.3
0.7
3/8
9.52
1.6
1.0
1/2
12.70
1.9
1.3
5/8
15.88
2.2
1.7
3/4
19.05
2.5
2.0
Ǿ
Tube, D
A (mm)
Electrical Wire Connection
•
All wires must be firmly connected.
•
Make sure none of the wires touch the refrigerant pipings, compressor or any moving parts.
•
The connecting wire between the indoor unit and the outdoor
unit must be clamped by using provided cord anchor.
•
The power supply cord must be equivalent to H07RN-F, which is
the minimum requirement.
•
Make sure no external pressure is applied to he terminal con-
nectors and wires.
•
To avoid gaps, make sure all covers are properly fixed.
•
Use round, crimp-style terminal for connecting wires to the power
supply terminal block. Connect the wires by matching to the
indication on the terminal block. Refer to the wiring diagram
attached to the unit.
•
Always use the correct screwdriver to tighten the terminal screws. Unsuitable screwdrivers can damage the screw’s head.
Pipe Size
mm (in)
Torque
Nm / (ft-Ib)
6.35 (1/4")
18 (13.3)
9.52 (3/8")
42 (31.0)
12.70 (1/2")
55 (40.6)
15.88 (5/8")
65 (48.0)
19.05 (3/4")
78 (57.6)
Electric wire
Round crimp-style termina
l
Attach insulation sleeve
Figure 15
Figure 14
Flare Joint
Flared Tube
Indoor Piping
Spanar
Torque Wrench
Содержание RR20AVAK9
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