Carrier Chiller – Pressure Leak Test

Carrier Chiller – Pressure Leak Test

Job Description:  Carrier Chiller – Pressure Leak Test

Area: Eastbourne Terrace, London

Asset/Issue Identified:  CARRIER 30RB 0402 Chiller 12W712899 Circuit B. Following recent maintenance our engineer advised a pressure leak test to be carried out on Circuit B.

Works carried out:

  • Isolated the Carrier Chiller electrically and mechanically.
  • Recovered 8 kgs R410a refrigerant into certified cylinder for storage on site.
  • Leak found on the liquid line lead fitting.
  • Fitting removed – locktighted and re-installed.
  • Pressure tested with OFN (oxygen free nitrogen) to 25 Bar.
  • No drop in pressure.
  • Once proved released OFN (oxygen free nitrogen) to atmosphere and evacuated system to 760 microns
  • Rise test passed.
  • Re-charged with recovered 8kg refrigerant and trim charged with 13.5kg virgin refrigerant.
  • Test ran and commissioned.
  • Completed waste transfer note and handed to on-site representative.
  • Completed F Gas records.

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.

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
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

Ref: 2053