HVAC Procedure and Performance Guide
Transfer refrigerant from storage bottle to charging cylinder
Training for this procedure can be found in these courses:
STANDARD OF PERFORMANCE
Specified amount of liquid refrigerant must be transferred from storage cylinder to graduated charging cylinder. Applicable safety procedures must be followed. (Caution: Charging cylinder should be used only when charging refrigeration system and should not be used for storage).
PROCEDURE GUIDE
- Collect tools, equipment and materials.
- Put on safety and protective equipment and apparel.
- Place refrigerant cylinder upright and connect charging hose to cylinder.
- Place charging cylinder at lower level than refrigerant cylinder and connect charging hose loosely to bottom valve. (Note: Do not tighten to seal).
- Crack valve on refrigerant cylinder, purge air from charging hose and then close valve.
- Tighten connection on charging cylinder.
- Invert refrigerant cylinder.
- Open valves on charging cylinder and refrigerant cylinder, crack vent valve on top of charging cylinder and allow liquid refrigerant to flow into charging cylinder until desired level is reached.
- Close valve on refrigerant cylinder and close vent valve on top of charging cylinder.
- Allow charging line to warm until it is free of liquid; then close valve on charging cylinder.
- Return refrigerant cylinder to upright position and place alongside charging cylinder.
- Loosen hose connection carefully on charging cylinder and bleed pressure from hose. (Note: Exercise caution as some liquid refrigerant may still be present in the charging hose).
- Remove charging hose.
- Remove safety and protective equipment and apparel.
- Gather tools, equipment and leftover materials, and leave work site clean.