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This 4-blade prop is engineered specifically for Trane residential and commercial units that utilize a 22-inch diameter configuration
This HVAC circuit board is essential for restoring optimal staging performance and system efficiency in compatible furnaces
Using it with R410A will lead to improper metering and potential system damage due to incompatible pressure ratings
Thermal Protection: Integrates factory-grade thermal insulation to prevent outer cabinet overheating and energy loss
you will likely see low suction pressure and a pump-down effect
Trane BRD4939 Circuit Board Els PW 29614 This 4-blade prop is engineeredThe Trane BRD4939 Circuit Board is a critical OEM HVAC control board engineered to manage the sequence of operations for VariTrane and VariTrac VAV (Variable Air Volume) units. As a high performance direct replacement for BRD3564 and X13690252 07, this VAV UCM 4. 2 board processes thermostat inputs and sensor data to regulate fan speeds, blower cycles, and compressor activity. Field technicians prioritize the BRD4939 for its precision in executing