Job Description: Compressor Replacement to a Lennox Chiller
Area: Fleet Street, London
Issue Identified: Following recent maintenance on site the engineer advised that the compressor on chiller 1 circuit 1 had failed and required replacing. Unfortunately, due to limited access we were unable to service exchange the compressor. The unit required an on-site overhaul.
Works carried out:
- Isolated the unit electrically and mechanically.
- Removed refrigerant into dedicated cylinders.
- ACES Lifting Team attended site and removed the compressor from chiller bed.
- Engineers attended site to strip the compressor.
- All the spares ordered and delivered to site.
- We attended and overhauled the compressor.
- Replaced the compressor soft start and compressor cables.
- Replaced drier cores with burnout driers.
- ACES Lifting Team replaced the compressor onto chiller bed.
- Pressure tested with OFN (oxygen free nitrogen) to confirm system is leak tight.
- Once proven released OFN (oxygen free nitrogen) to atmosphere and evacuated the system to a minimum of 2 Torr.
- Re-charged with recovered refrigerant.
- Completed the F Gas certificate and logs.
- Cleared the site of all waste generated.
