Carrier Chiller PLT on Circuit 3
Job Description: Carrier Chiller PLT on Circuit 3
Area: Mizuho House, London
Issue Identified: Following a recent maintenance visit the engineer advised that the Carrier Chiller required a pressure leak test
Works carried out:
- Isolated the Carrier 30XA Chiller unit electrically and mechanically.
- Recovered refrigerant into a dedicated recovery cylinder.
- Pressure tested with OFN (oxygen free nitrogen) to locate leak.
- Repaired the leak by means of brazing.
- Once proved released Oxygen Free Nitrogen (OFN) into atmosphere and evacuated the system to a minimum of 2 Torr.
- Re-charged with the recovered refrigerant and trim charged with virgin refrigerant.
- Test ran and re-commissioned.
- Completed a waste transfer note and handed to on-site representative.
- Completed an F Gas certificate.