What is the pressure setting for hot gas by-pass?
The factory/standard setting is to begin opening when the suction pressure falls below 60 PSI. What is the pressure drop across the coils of Data Aire unit and/or the unit itself? There are a number of factors that can affect these results as well as the configuration of the unit. In general the pressure drop across the coil is .3″ to .5″, and for the entire unit the pressure drop will range between 1.5″ and 2.5″. For more specific information on a particular unit contact the Engineering Department. What are the pressure drops across components such as: plate and fin heat exchanger, regulating valve, coaxial coil and the units piping? Pressure drops for individual components are not published because they vary from unit to unit. Heat exchangers, whether plate and fin, or coaxial, typically represent approximately 45% of the total loss. Regulating valves also represent approximately 45% of the total unit loss. The remaining 10% is the loss caused by internal piping. Exact breakdowns of
