Case 3: Air In System

Measured pressure
Low-pressure: Above 34.1 psi
(235 kPa, 2.40 kg/Sq.cm)

High-pressure: Above 377 psi
(2,600 kPa, 26.5 kg/Sq.cm)

Condition
Insufficient cooling




Step 1
Discharge refrigeration system. Refer to operating instructions of your refrigerant recovery/recycling/charging station for proper procedures.

Step 2
Evacuate system to remove all air from it. Refer to operating instructions of your refrigerant recovery/recycling/charging station for proper procedures.

Step 3
Charge system with refrigerant. Refer to operating instructions of your refrigerant recovery/recycling/charging station for proper procedures.

Step 4
After charging, measure refrigerant pressure. Refer to "Checking Refrigerant Pressure".

Step 5
If low-and high-pressure sides are still too high, replace receiver/drier.