Adjustment And Replacement; Refrigerant Circuit-Draining, Vacuum Extraction And Refilling - Ikco SAMAND Service Manual

Adjustments and replacement
Refrigerant circuit - draining, vacuum extraction and refilling
W710R065
Draining
1 High pressure valve.
2 Low pressure valve.
Note
The high pressure valve is fitted on the pipe with the
smallest diameter.
Drain the circuit via the low pressure valve (gaseous
zone) very slowly to avoid draining the compressor oil.
Refilling
Imperative
Before filling the circuit with refrigerant, it is necessary
to carry out a vacuum extraction to dry the circuit.
1 Connect the filling equipment to the service
valves.
2 Carry out a vacuum extraction
(draining time 15 minutes)
3 Check the sealing of the circuit:
The vacuum should be held for more than
5 minutes.
4 Carry out a pre-filling:
300g.
5 Check the sealing of the circuit.
6 Drain the refrigerant circuit.
7 Carry out a vacuum extraction
(draining time 30 minutes minimum).
8 Charge the circuit with the specified quantity of
refrigerant.