When it comes to HVAC systems, purging the line to the refrigerant cylinder is an important step in the refrigeration process. This is done after evacuation, and before charging, to ensure that the system is properly charged and functioning correctly.
The purpose of purging is to remove any non-condensable gases that are present in the system. Non-condensable gases can be any gas that is not part of the refrigerant and can cause many problems in the system. These gases can cause the system to be inefficient, as they can reduce the overall efficiency and cause the system to be less effective. Non-condensable gases can also cause the system to operate at higher pressures, and this can lead to damage to the system.
By purging the line to the refrigerant cylinder, any non-condensable gases are removed from the system. This allows for the system to be charged with the correct amount of refrigerant and operate at the proper pressures. Without the non-condensable gases, the system will be able to operate more efficiently and effectively.
Another important reason to purge the line to the refrigerant cylinder is to ensure that the system is not overcharged. If the system is overcharged, it can cause a variety of problems. Overcharging can cause the system to become overly pressurized, and this can lead to component failure. It can also cause the system to be inefficient, as the system will be unable to cool properly. By purging any excess refrigerant prior to charging, it ensures that the system is not overcharged and will operate at the proper pressures.
Overall, purging the line to the refrigerant cylinder is an important step in the refrigeration process. It ensures that the system is properly charged and functioning correctly, and it also helps to prevent overcharging and component failure.
The cylinder should be evacuated
Probably not, how long did it run before the mix up was discovered? All of the refrigerant has to come out and be properly disposed of, then a good evacuation and recharge. You did not say which refrigerant was the correct one for the machine, but either way it all has to go.
To endure that the ONLY gas in the system is refrigerant.
As a precaution.
why applay refrigerant oil to the flare cone before making a flare
State and local authorities usually order the mandatory evacuation at least 48 hours before the arrival of a major hurricane.
Refrigerant System ChargeWARNING: REFER TO THE APPLICABLE WARNINGS AND CAUTIONS FOR THIS SYSTEM BEFORE PERFORMING THE FOLLOWING OPERATION.After all refrigerant system leaks have been repaired and the refrigerant system has been evacuated, a refrigerant charge can be injected into the system. For the proper amount of the refrigerant charge, refer to the Underhood HVAC Specification Tag. An R-134a refrigerant recovery/recycling/charging station that meets SAE Standard J2210 must be used to charge the refrigerant system with R-134a refrigerant. See the operating instructions supplied by the equipment manufacturer for proper care and use of this equipment.REFRIGERANT CHARGE CAPACITYNOTE: Always refer to the underhood HVAC Specification Tag for the latest fill specification for the vehicle being serviced.CHARGING PROCEDUREEvacuate the refrigerant system .A manifold gauge set and a R-134a refrigerant recovery/recycling/charging station that meets SAE Standard J2210 should still be connected to the refrigerant system.Measure the proper amount of refrigerant (1.88 lb) and heat it to 52°C (125°F) with the charging station. See the operating instructions supplied by the equipment manufacturer for proper use of this equipment.Open both the suction and discharge valves, then open the charge valve to allow the heated refrigerant to flow into the system.When the transfer of refrigerant has stopped, close both the suction and discharge valves.If all of the refrigerant charge did not transfer from the dispensing device, open all of the windows in the vehicle and set the heater-air conditioner controls so that the compressor is engaged and the blower motor is operating at its lowest speed setting. Run the engine at a steady high idle (about 1400 rpm ). If the compressor will not engage, test the compressor clutch control circuit and repair as required.Open the suction valve to allow the remaining refrigerant to transfer to the refrigerant system.WARNING: TAKE CARE NOT TO OPEN THE DISCHARGE (HIGH PRESSURE) VALVE AT THIS TIME.Close the suction valve and test the system performance.Disconnect the charging station and manifold gauge set from the refrigerant system service ports.Reinstall the caps onto the refrigerant system service ports.Run the HVAC Control Cooldown test to verify proper operation.
An A/C shop will know. The leak must be repaired before adding refrigerant.
Most vehicles made before 1994 use R-12 refrigerant.
Refrigerant is the material that absorbs heat when evaporating and releases heat when condensing. If not for refrigerant in the system, it would not function. Before refrigerant, other more dangerous gases were used to achieve the same goal, such as propane.