Castel Pressure Relief Valves Replacement on a Carrier Chiller

Castel Pressure Relief Valves Replacement on a Carrier Chiller

Job Description:  Castel Pressure Relief Valves Replacement on a Carrier Chiller

Area: Heritage Lane, West Hampstead

Issue Identified:  Following a recent planned preventative maintenance visit the engineer advised that circuit A was running on low pressures and required a pressure leak test. While on site he also advised that the Pressure Relief Valves were out of date and should be replaced.

Works carried out:

  • Isolated the Carrier Chiller 30RB Unit electrically and mechanically.
  • Recovered refrigerant.
  • Weighed and confirmed the charge.
  • Replaced Pressure Relief Valves.
  • Pressure tested with OFN (oxygen free nitrogen) to locate any possible leaks.
  • Discovered leak on 3rd condenser coil from control panel which required to be replaced.
  • Once the repair had been completed the system was re-pressure tested.
  • Once the circuit proved its tightness released OFN to atmosphere and evacuated system to a minimum of 2 Torr.
  • Re-charged with recovered refrigerant and trim charge with virgin refrigerant.
  • Test ran and commissioned.
  • Completed waste transfer note and handed to on-site representative.
  • Completed F Gas records.
Some of the many Carrier Chillers we support
  • AquaSnap® Air-Cooled Liquid Chiller 30 RAP
  • AquaSnap® Air-Cooled Liquid Chiller 30RB
  • AquaForce® Air-Cooled Screw Chiller 30XA
  • AquaForce® Variable Speed Air-Cooled Screw Chiller 30XV
  • AquaEdge® Water-Cooled, Custom-Design Centrifugal Chiller 17DA
  • AquaEdge® Water-Cooled Centrifugal Chiller 19DV
  • AquaEdge® High-Efficiency Semi-Hermetic Centrifugal Chiller 19XR
  • AquaEdge® High-Efficiency Variable-Speed Screw Chiller 23XRV
  • AquaForce® High-Efficiency Indoor Liquid Screw Chiller 30HX
  • AquaSnap® Indoor Water-Cooled/Condenserless Liquid Chiller 30MP
  • AquaForce® High-Efficiency, Water-Cooled, Indoor Liquid Screw Chiller 30XW

ACES Group Can Also Supply and Install New Chillers – Call Us On 01865 890996

Carrier Chillers have a wide range of models with capabilities for sustainable refrigerant options. With non-ozone depleting refrigerant, excellent efficiency and powerful controls, these units are ideal for applications where temperature control is crucial. Carrier Chillers have been designed to bring efficient, reliable cooling to all types of large commercial applications. ACES engineers are experts in service and maintenance of all Carrier Chiller types. We have engineers based in London 24/7.

Abbreviations

HVAC – Heating, Ventiliation and Air Conditioning, PLT – Pressure Leak Test,  PRV – Pressure Relief Valve, PPM – Planned Preventative Maintenance, OFN – Oxygen Free Nitrogen, AHU – Air Handling Unit, GWP – Global Warming Potential, VRF – Variable Refrigerant Flow, VRV – Variable Refrigerant Volume, ACU – Air Conditioning Unit, FCU – Fan Coil Unit, AC – Air Conditioning,  HP – High Pressure, LP – Low Pressure

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