Job Description: Replace Coil on a Denco CRAC (critical room air-conditioning) Unit
Area: St James Market, London
Issue Identified: Following a call out to site the engineer advised that there was a leak on the coil of the Denco unit and required to be replaced.
Works carried out:
- Isolated the Denco unit electrically and mechanically.
- Recovered the refrigerant from the Denco unit into a dedicated recovery cylinder.
- Removed the coil from the Denco CRAC (critical room air-conditioning) Unit.
- Installed new coil.
- Charged the system with OFN (oxygen free nitrogen) to prove leak tight for 24 hrs.
- Once proved released the OFN (oxygen free nitrogen) to atmosphere and evacuated system to a minimum of 2 Torr.
- Re-charged with virgin refrigerant.
- Test ran and re-commissioned.
- Completed waste transfer note and handed to on-site representative.
- Completed F Gas certificate.