Checklist: correct charging and discharging of refrigerant
Handle refrigerant with minimal leakage and full documentation
Refrigerant is the trade's most regulated substance. Follow a fixed procedure so you work legally, safely and with as little leakage as possible.
§Preparation
- 01Confirm which refrigerant the system contains
- 02Put on gloves and eye protection — liquid coolant is very cold
- 03Make sure that hoses, gauges and equipment are tight and clean
- 04Have recovery equipment ready if fluid needs to be drained
§Draining / recovery
- 01Drain coolant to a recovery unit — never release it into the air
- 02Weigh the amount tapped off
- 03Mark collected refrigerant correctly
§Refueling
- 01Evacuate the system for air and moisture with a vacuum pump first
- 02Weigh the exact amount of coolant on
- 03Connect and disconnect with minimal leakage
- 04Check for tightness after filling
§Conclusion
- 01Note quantity filled in and tapped out in the documentation
- 02Secure gas cylinders against tipping during transport
- 03Check that all joints are tight and system runs normally