CFM (Cubic Feet per Minute) and TR (Ton of Refrigeration) are two different units used to measure different aspects of air conditioning and cooling systems.
CFM (Cubic Feet per Minute) is a unit of measurement that represents the volume of air flow in cubic feet that moves through a particular space in one minute. It is commonly used to measure the airflow capacity of fans, air handling units, and ventilation systems.
TR (Ton of Refrigeration) is a unit used to measure the cooling capacity of an air conditioning system. One ton of refrigeration is equal to the amount of heat required to melt one ton (2,000 pounds) of ice in 24 hours. In the context of air conditioning, one TR is equivalent to 12,000 BTU (British Thermal Units) of cooling per hour.
There is no direct conversion between CFM and TR, as they measure different properties. The cooling capacity of an air conditioning system is determined by various factors, including the size of the space to be cooled, the climate conditions, insulation, and other environmental factors. The CFM required for a specific cooling system will depend on these factors and the design of the air distribution system.
To properly size an air conditioning system for a specific space, a professional HVAC engineer or technician will consider both the cooling capacity in tons (TR) and the required airflow in CFM to ensure the system operates efficiently and provides adequate cooling and ventilation.