Air entering inside refrigeration system: Air can enter the refrigeration system through a leak in the low side of the refrigeration system.




![Procedure to remove air from the refrigeration system: Pump down the refrigerant gas into the condenser after closing condenser outlet valve and by running compressor. [Procedure already discussed in my video about gas charging procedure for refrigeration system.] Stop the compressor when the suction pressure is just above zero if compressor is on manual mode or it will stop on low pressure switch activation. Close the suction valve for compressor. Supply sufficient cooling water to the condenser so that the refrigerant can be condensed as as possible. Bleed air slowly by opening purging valve on condenser and collect it in the recovery bottle. Repeat the procedure until condensing pressure become saturated pressure.](https://static.wixstatic.com/media/d27a8f_a2345ab0dd944a37b4a6ea681f0418ca~mv2.jpg/v1/fill/w_980,h_551,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/d27a8f_a2345ab0dd944a37b4a6ea681f0418ca~mv2.jpg)

Air entering inside refrigeration system: Air can enter the refrigeration system through a leak in the low side of the refrigeration system.