Hitachi Compressor Repairs on a Climaveneta Chiller

Hitachi Compressor Repairs on a Climaveneta Chiller

Job Description:  Hitachi Compressor Repairs on a Climaveneta Chiller

Area: Haymarket, London

Issue Identified:  Following recent on site repairs the engineer discovered that the Hitachi Compressor on circuit 1 had a leak on the compressor housing and required replacing.

Works carried out:

  • Isolated the unit electrically and mechanically.
  • Recovered refrigerant into certified cylinder for storage on site.
  • Weighed and confirmed the charge
  • Removed cover and replaced gasket.
  • Carried out insulation and earth test on compressor windings.
  • Pressure tested with OFN (oxygen free nitrogen) and left overnight.
  • System 1 held integrity.
  • Fitted new safety switch and calibrated range.
  • Charged circuit with recovered refrigerant and trim charged with virgin refrigerant.
  • Hitachi compressor tails showed signs of loose connections.
  • The insulation resistance was tested and deemed to be safe the termination was then cut back and re made.
  • The terminations on the compressor were also rectified.
  • The compressor contactors were then stripped and cleaned, and the contacts checked.
  • Reassembled and all connections torque to manufacturers specification.
  • A dry run was then carried out to ensure safe operation.
  • The circuit protection was then replaced.
  • Test ran and commissioned.
  • Completed waste transfer note and handed to on-site representative.
  • Completed F Gas records.

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

Some of the many Climaveneta Chillers we support
  • Air-cooled chiller BRA 0011 – 0061
  • Air-cooled chiller BRAT 0011 – 0121
  • Air-cooled chiller MICS 0072 – 0182
  • Air-cooled chiller FOCS60 /K 0751 – 2632
  • Air-cooled chiller NECS 0202T-0612T
  • Air-cooled chiller NX 0152P – 0812P
  • Air-cooled chiller NECS-C 0152-1204
  • Air-cooled chiller NX 0614T -1214T
  • Air-cooled chiller NECS-FC 0152 -1604
  • Air-cooled chiller FOCS 0751 – 2632
  • Air-cooled chiller FOCS 1542 – 2642
  • Air-cooled chiller NECS 1314-3218
  • Air-cooled chiller FOCS-XL 1502 – 6002
  • Air-cooled chiller i-FX (1+i) 2602 – 5403
  • Air-cooled chiller FOCS2/K 1502 – 8404
  • Air source heat pump NECS-W 0152-1204
  • Air source heat pump FOCS-W 0401 – 1902
  • Air source heat pump TECS2-W 0251 – 1954
  • Air source heat pump FOCS2-W 1301-9604
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: 2179