Pressure Leak Test on Aermec Chiller
Job Description: Pressure Leak Test on Aermec Chiller
Area: Mark Lane, London
Issue Identified: Following a call out the engineer advised that the Aermec Chiller is tripping on LP (low pressure), circuit 2. Engineer found a slight leak on the solenoid valve circuit 2.
Works carried out:
- Isolated the Aermec Chiller electrically and mechanically.
- Recovered refrigerant into a dedicated recovery cylinder.
- Removed and replaced coil.
- 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.