Replace a Daikin System following R22 Phase Out
Job Description: Replace a Daikin System following R22 Phase Out
Area: Culham, Oxfordshire
Issue Identified: Following a recent site survey we recommended the replacement of a 7.0kw Daikin system. On-site there was a 2001 Daikin R22 system, due to R22 being phased out we proposed to replace the system with a new R32 Daikin system. We recommended replacing this unit with a modern R32 unit which are more efficient and environmentally friendly.
Works carried out:
- Isolated the old Daikin R22 unit electrically and mechanically.
- Recovered the refrigerant into a dedicated recovery cylinder.
- Removed the old units and old pipework.
- Hung indoor unit and fabricated new pipework trunking and fitted condensate pump.
- Obtained necessary hot works permits and installed new pipe work.
- Fitted outdoor unit and retested system integrity and left overnight.
- Carried out insulation and resistance test of interconnecting cables and ensured continuity and safe connection.
- Completed mains connection to outdoor termination plate and torque connections.
- Commissioned system to manufacturers guidelines and left operational.
- Tested operation of condensate pump, filled with water and ensured free flow of water.
- Left operational.
- Trim charged the unit with virgin R32.
- Test ran and re-commissioned.
- Completed waste transfer note and handed to an on-site representative.
- Completed F Gas certificate.