A/A DC INVERTER U-MATCH AIR CONDITIONERS MAINTENANCE
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13. Establish
vacuum through
liquid valve
Establish vacuum inside
the system through
liquid valve.
14. Charge
refrigerant
through liquid
valve
a.Recharge the
refrigerant to the system
through liquid valve.
b. The charge volume
must be identical to the
indications on
nameplate.
Disassembly and Assembly of 4-way valve
Remark : Before removing the 4-way valve, make sure that there is no refrigerant inside the pipe system and that
the power has been cut off.
Step Illustration Handling Instruction
1. Loosen the solenoid
valve
a. Cut off the power
supply
b. Recover the
refrigerant.
c. Loosen the bolts on
the solenoid valve with a
wrench.
2. Remove the solenoid
valve
Remove the solenoid
away from the four-way
valve.
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