A/A DC INVERTER U-MATCH AIR CONDITIONERS MAINTENANCE
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5. Connect the new
4-way valve to the pipe.
● Install the new 4-way
valve to correct position.
●When welding the
4-way valve, please
wrap the valve body with
wet cloth, thus to
prevent the guide inside
the valve body from
burn. Also take care to
prevent any water from
flowing into the pipe.
● Weld by charging
nitrogen, with the
nitrogen pressure kept at
0.5±0.1kgf/c(relative
pressure).
6.Establish vacuum
inside the system
through liquid valve.
● Establish vacuum
inside the system
through liquid valve.
7 Recharge the
refrigerant to the
system through liquid
valve.
● Recharge the
refrigerant to the system
through liquid valve.
● The charge volume
must be identical to the
indications on
nameplate.
Removal and Installation of Fan and Motor
Note : Before the dismantlement of the motor, make sure the unit is powered off
Step Illustration Handling Instruction
1 Loosen the grille.
Loosen the screws
between the grille and
the back panel with a
screw driver.
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