13
having completed burr removal. (not
possible to put them on after flaring work).
(Figure 16)
D: Flaring Work
Caution
Main cause for refrigerant
leakage is due to defect in the flaring
work. Be sure to follow specific flaring tool
instructions when flaring the copper
tubing.
Firmly hold the copper pipe into the flaring
tool (Figure 17) and flare until the cone is
properly formed.
E: Tightening Connection
Align the center of the pipes. (Figure 18)
Sufficiently tighten the flare nut with
fingers, and then tighten it with a wrench
and torque wrench as shown in Fig 19 &
20.
Caution
Excessive torque can break
the nut.
3.7 Electrical Work
Electrical safety regulations for the initial installation
If there is an unsafe power supply, the
technician should refuse to install the heat
pump mini-split and explain to the client what
the problem is.
Power voltage should be in range of
90%~110% of rated voltage.
Ground Fault Protection must be provided,
see page 30 for more details.
Refer to the Electrical Connection Diagram
located on the panel of the outdoor unit to
connect wires.
All wiring must comply with local and national
electrical codes and be installed by licensed
electricians.
An individual branch circuit and single
receptacle used only for this heat pump
mini-split must be available.
Outer Diameter Torque
Additional Torque
¼”
11.06 Ft. Lbs.
11.8 Ft. Lbs.
½”
25.80 Ft. Lbs.
26.55 Ft. Lbs.
Flare Nut
Copper Tube
Figure 16
Yoke
Handle
Bar
Clamp Handle
Red Arrow Mark
Cone
Indoor Unit Tubing
Flare Nut
Tube
Figure 18
Figure 19
Figure 20
Figure 17
Содержание ENE ACDC12
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