The accessory is used to evacuate and fill refrigeration systems. The refrigeration system is evacuated using a vacuum pump. Evacuation using the vacuum pump removes air and humidity from the refrigeration system to allow subsequent filling with refrigerant. The correct amount of refrigerant is monitored using the filling balance.The equipment is designed for the CFC-free refrigerant R134a.
The unit shall perform the following experiments and investigations:
Learning Objectives / Experiments
Prepare the filling station
Evacuate the refrigeration system
Fill the refrigeration system
Specification
Portable equipment
Vacuum pump and filling balance
4-valve assembly aid
Pulsation-damped manometer for intake pressure, high pressure; vacuum meter
Manometer for intake and high pressure with temperature scale for refrigerant R134a