Fitters Notes Series: Pressure Controls
22 September 2008
The actual pressure in the system at the point monitored by the pressure control is usually provided via a branch line or – if the pressure control is installed directly on a line – applied directly to the pressostat. The pressure actuates a potential-free set of contacts that can be used to control a device such as a compressor or a fan.
Useful practical tips for the everyday work of fitters is provided in the “Fitters Notes” series. The “Fitters Notes” series is based on the handbook of the same name produced by Danfoss, which discusses the basic principles of commercial refrigeration systems and the associated basic components.