Pressure Leak Test on a Carrier Chiller
Job Description: Pressure Leak Test on a Carrier Chiller
Area: Globeside Business Park, Marlow
Issue Identified: Following a recent call out engineer had advised that the chiller tripped due to the high oil pressure. Circuit 2 was also showing low oil level.
Scope of Works Carried Out:
- Isolated the Carrier Chiller electrically and mechanically.
- Recovered refrigerant from Circuit A into a dedicated recovery cylinder.
- Weighed and confirmed charge in the circuit.
- Drained oil out of the system.
- Removed and replaced oil filters.
- Pressure test with OFN (oxygen free nitrogen).
- Repaired the leak by means of tightening.
- Once proved released OFN (oxygen free nitrogen) to atmosphere and evacuated system to a minimum of 2 Torr.
- Re-charge with recovered refrigerant and trim charged with virgin refrigerant.
- Test ran and re-commissioned.
- Completed waste transfer note and handed to on-site representative.
- Completed F Gas certificate.
- Repeated for Circuit B.