Process Chiller Vacuum Service

Process Chiller Vacuum Service

During a recent process chiller vacuum service, our engineer achieved a deep vacuum of 2 Torr. This is the same pressure as if the Torr gauge had been fitted directly to the vacuum pump. Torr Gauge The Torr gauge was fitted to a refrigerant hose. The refrigerant...
Chilling Plant Controls Maintenance

Chilling Plant Controls Maintenance

Prior to this chilling plant controls maintenance visit, another contractor had changed some of the settings and adjustments in the controllers. They did this while they were diagnosing a fault with the water system and the pumps. Therefore, this visit was to...
Industrial Chiller Maintenance

Industrial Chiller Maintenance

Reciprocating Compressors Industrial chiller maintenance including a reciprocating compressor with 8 cylinders. They always have an even number of cylinders so that the compressor is balanced. Open Drive Because the refrigerant being used in this article is ammonia,...
HFC Chiller Service

HFC Chiller Service

The photo shows HFC chiller service being carried out on a 600kW machine. It consists of two systems with a large Bitzer compressor for each system. It has a bespoke Micro Control System front end to run the machine and stop it should there be a fault condition. The...
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