Pressure Leak Test (PLT) on Carrier Chiller
Job Description: Pressure Leak Test (PLT) on Carrier Chiller
Area: Eastbourne Terrace, London
Issue Identified: Following a maintenance on site the engineer advised that circuit A and circuit B of the Carrier Chiller both had a lot of oil marks on the condenser coils and requireda pressure leak test and charge confirmation.
Additional benefits are: Both circuits were carried out one after the other to minimise disruption to the client.

Works carried out:
- Isolated the Carrier Chiller unit electrically and mechanically.
- Recovered refrigerant into a dedicated recovery cylinder.
- Weighed and confirmed charge in the circuit.
- Charged the unit with OFN (Oxygen free Nitrogen).
- Checked the unit for leaks and report.
- Further quotations for the leak repairs for circuit B were submitted at this stage, as it required condenser coils, the circuit was left off. Circuit A was repaired by means of tightening and recharged with recovered and virgin refrigerant.
- Reports and F Gas paperwork were handed to client.