Pressure Leak Test on Mitsubishi Heat Pump
Job Description: Pressure Leak Test on Mitsubishi Heat Pump
Area: Eagle Place, London
Issue Identified: Following a recent maintenance on site, the engineer had advised that the residential heat pump was running with low pressures and required a pressure leak test.
Works carried out:
- Isolated the Mitsubishi Heat Pump electrically and mechanically.
- Recovered refrigerant into a dedicated recovery cylinder.
- Checked and confirmed the charge.
- Pressure tested the system with OFN (oxygen free nitrogen) and checked confirmed leak.
- Repaired leak by means of brazing found on Schrader fitting.
- Once proved released OFN to atmosphere and evacuated system to a minimum of 2 Torr.
- Re-charged with refrigerant.
- Test Ran and re-commissioned.
- Completed waste transfer note and handed to on-site representative.
- Completed F Gas records.