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Caution：
1. When connecting the indoor unit with the connecting pipe, do not pull the big and small joints of the indoor unit
forcefully, so as to prevent the capillary of the indoor unit and other pipes from breaking and leaking.
2. The connecting pipe shall be supported by proper bracket. The weight of the pipe shall not be withstand by the
unit.
3. When brazing the outdoor unit with the connecting pipe,please make sure that the valve are wrapped with wet
cloth for cooling.
E.Installation of Protective Layer of Connecting Pipe
1. To avoid generation of condensate on the connecting pipe and avoid leakage, the gas and liquid connecting pipes
must be covered by thermal insulation materials, be bundled by adhesive tape, and be isolated from air. (refer to
Fig. 11-19)
2. The joint connecting the indoor unit must be wrapped by thermal insulation materials. There should be no gap
between the connecting pipe joint and the wall of the indoor unit (refer to Fig. 11-20).
Fig. 11-19
CAUTION:
After the pipes are wrapped by protective materials, never bend the pipes even slightly, or the pipes may crack or
break.
3.
Use adhesive tapes to wrap the pipes:
(1)
Use adhesive tape to bundle the connecting pipe and the cables together. To prevent condensate from
Pressure Gage
"LO" Knob
Liquid Valve
Gas Valve
Pressure Gage
"HI" Knob
Connecting Hose
Fig. 11-18
43
Vacuum Pump
Fig. 11-20
brazing
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