80DWFK6HULHV'&
,QYHUWHU6HUYLFH0DQXDO
135
4. Remove 4-way valve
Ɣ5HPRYHWKHROGZD\YDOYHIURP
the unit.
5. Connect the new
4-way valve to the pipe.
Ɣ,QVWDOOWKHQHZZD\YDOYHWR
correct position.
Ɣ:KHQZHOGLQJWKHZD\YDOYH
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
ÀRZLQJLQWRWKHSLSH
Ɣ:HOGE\FKDUJLQJQLWURJHQZLWKWKH
nitrogen pressure kept at 0.5±0.1kgf/
c(relative pressure).
6.Establish vacuum
inside the system
through liquid valve.
Ɣ(VWDEOLVKYDFXXPLQVLGHWKH
system through liquid valve.
7 Recharge the
refrigerant to the
system through liquid
valve.
Ɣ5HFKDUJHWKHUHIULJHUDQWWRWKH
system through liquid valve.
Ɣ7KHFKDUJHYROXPHPXVWEH
identical to the indications on
nameplate.