PLT on a Daikin REYQ12P9Y1B
Job Description: PLT on a Daikin REYQ12P9Y1B
Area: Turnmill Street, London
Issue Identified: Following an engineer’s attendance on site he advised that the unit was running short of refrigerant.

Works carried out:
- Isolated the Daikin REYQ12P9Y1B unit electrically and mechanically.
- Recovered refrigerant into a dedicated recovery cylinder.
- Pressure tested with OFN (oxygen free nitrogen) to locate leak.
- Leak found on left hand side coil.
- 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.