Basic Refrigeration Cycle Principles of Refrigeration Liquids absorb heat when changed from liquid to gas Gases give off heat ...

Chiller System Overview Chillers use either a vapor-compression or absorption refrigerant cycle to cool a fluid for heat transfer. Bot...

What does TR mean in air conditioning Originally 1 TR was defined as the rate of heat  transfer required  to make 1 short ton (200...

 Superheat and Subcooling Superheat and subcooling are critical to the refrigeration cycle, but can be tough concepts to visualize. Le...

HVAC Basics Facility maintenance managers, HVAC contractors; HOA board members; estate and high-rise building managers; building and ...