(PRWEB) May 4, 2006
Reading discharge pressure and suction pressure near the compressor gives a very accurate indication of saturated condensing and evaporating conditions, and http://www.air-conditioning-and-refrigeration-guide.com can help technicians build a clear image in their minds of the exact 'troubleshooting target spots' in the system where these saturated conditions exist.
For troubleshooting purposes; in the condenser, see droplets of cooling vapor falling into a pool of liquid refrigerant. The surface of the pool of refrigerant is the exact location of the saturated discharge pressure, and the subcooling measurement at the outlet of the condenser will indicate how deep the pool of liquid refrigerant in the condenser is.
In the evaporator, visualize a pool of foaming, flashing refrigerant with a boiling surface.
The boiling surface is the exact location of the saturated suction pressure, and the superheat reading indicates how deep the pool of vaporizing refrigerant is.
http://www.air-conditioning-and-refrigeration-guide.com discusses the methods for evaluating operating pressures, superheat, subcooling, and other operating characteristics, and also describes step by step troubleshooting procedures for a variety of common HVAC service calls.
###