Recharging With Liquid Refrigerant Using Charging Aid

FILLING-UP LIQUID REFRIGERANT WITH FILLING AID

Note! Filling an air-conditioning system with liquid refrigerant via pressure end and completing the filling procedure by adding gaseous refrigerant into suction end can be very time consuming.






The filling aid (22) Charge Master permits filling up air-conditioning system at suction end without a problem. During this process, liquid refrigerant will be taken from filling cylinder, with the engine running and will flow by way of the filling aid into the suction end of the air-conditioning system. When flowing through the filling aid, the liquid refrigerant is converted to refrigerant vapor. This will protect the refrigerant compressor against fluid shock.






Filling aid (Charge Master) (22)
1 Expansion chamber
2 Strainer
3 Check valve
4 Capillary
Arrow white = filling direction
Arrow lined = evacuation direction

When removing liquid refrigerant from filling cylinder the formation of bubbles is so low that the filled-in quantity can be very accurately read. In addition, heating the filling cylinder for filling is not necessary. The normal bottle pressure is adequate.






The filling aid on valve A (low pressure connection) of assembly tester (2) is connected by means of an angle connection (23).

Filling Procedure:
- Filling cylinder with refrigerant (refer to "Charging System With Charging Cylinder or Service Unit").
- Perform filling procedure. Open valve (14) on filling cylinder (12).