A/A DC INVERTER U-MATCH AIR CONDITIONERS MAINTENANCE
164
6. Connect the
suction/discharge
pipes of the
compressor with
the system piping.
a. Connect the
suction/discharge pipes of
the compressor by means of
gas welding.
b. During the welding,
nitrogen should be inflated
and its pressure should be
0.5±0.1kgf/c
㎡ (relative
pressure)
c. Attention should be taken
during the heating to avoid
the surrounding objects burnt
due to the high temperature.
7. Connect the
power cord of the
compressor
a. Connect the power cord as
the reverse way of
disconnection mentioned
above.
b. Tighten the cover of the
compressor with a screw
driver.
8 Establish
vacuum through
liquid valve
● Establish vacuum inside
the system through liquid
valve.
9. Charge
refrigerant
through liquid
valve
● Recharge the refrigerant
to the system through
liquid valve.
● The charge volume must
be identical to the
indications on nameplate.
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