R22 Unit Replacement with New Daikin R32 Unit
Job Description: R22 Unit Replacement with New Daikin R32 Unit
Area: Culham, Oxfordshire
Issue Identified: Following a recent site survey and maintenance, we recommended the replacement of the current 7.0kw R22 Daikin system. Due to R22 being phased out we replaced the system with a new R32 Daikin system. The units were installed in the same positions and we replaced the pipework.
Additional benefits are: The modern R32 units used for this are more efficient and environmentally friendly.
Works carried out:
- Isolated the Daikin electrically and mechanically.
- Recovered the R22 refrigerant into a dedicated recovery cylinder for safe disposal.
- Removed the current indoor and outdoor units, and all existing pipework.
- Installed new outdoor bracket and the new indoor unit and fitted new pipework.
- Proceeded to pressure test system with Oxygen Free Nitrogen (OFN) and carried out a tightness test.
- Evacuated the pipework for a minimum of 48 hours.
- 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.