Replace Differential Switch on a Lennox Air Cooled Water Chiller

Replace Differential Switch on a Lennox Air Cooled Water Chiller

Job Description:  Replace Differential Switch on a Lennox Air Cooled Water Chiller

Area: Fleet Street, London

Issue Identified:  Following a recent call out our engineer discovered the differential switch was faulty and was putting the chiller into flow fault

Works carried out:

  • Isolated the Lennox chiller electrically and mechanically.
  • Opened bypass valve located on chilled water pipework.
  • Closed flow and return to enable draining of chilled water pipework.
  • Tested differential switch was dead.
  • Removed and replaced the differential switch.
  • Opened valves and bypass valve to test for leaks.
  • Reinstated power.
  • Ran up chiller and recorded a running log.

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

Lennox  Chillers

ACES service and maintain all Lennox Chillers including Air Cooled Chillers, Water Cooled Chillers and Condenserless Liquid Chillers. These can be found in Data Centres, Hospitals, Hotels, Offices and Process Cooling. We have engineers based in London 24/7 available to respond within 1 to 2 hours for emergency call out.

Some of the many Lennox Chillers we support
  • Lennox ECOLEAN
  • Lennox eCOMFORT
  • Lennox GENESIS
  • Lennox AQUA
  • Lennox NEOSYS
  • Lennox HYDROLEAN
  • Lennox MWC / MRC
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, BMS – Building Management System