Repairs on a Carrier Chiller
Job Description: Repairs on a Carrier Chiller
Area: Ludgate Hill, London
Issue Identified: Following a recent call out to the site the engineer had advised that the chiller required some remedial works – Circuit 1 was tripping on low pressure, Inlet and outlet evaporator sensors required replacing.
Works carried out:
- Isolated the Carrier Chiller unit electrically and mechanically.
- Recovered refrigerant into a dedicated recovery cylinder.
- Weighed and confirmed the charge of the circuit.
- Replaced the inlet and outlet sensors.
- Charged the system with Oxygen Free Nitrogen (OFN) and pressure tested.
- Repaired any leak by means of brazing.
- 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.