Standardized Timing: Fixed 15-second pre-purge and 4-second TFI provide consistent

OEM Compatibility: Ensures exact alignment with existing belt profiles and motor sheaves

is a critical component for maintaining precise system capacity control in HVACR applications

Reduced Harmonic Noise: Precision-balanced plastic blower wheel and sleeve bearings minimize vibration and mechanical warble commonly found in aftermarket units

Compact Stack Design: Features a 1-inch iron stack for high power density in tight evaporator configurations

Resideo AT87A1106 Transformer 321702-401 Standardized Timing: Fixed 15-second pre-purgeThe Resideo AT87A1106 Transformer is a heavy duty 48VA transformer engineered for multi tap versatility in commercial and residential HVACR service. Built to handle 120V 208V 240V primary input, this Super Tradeline component drops voltage to a stable 26. 5V secondary (24. 0V nominal under load), making it a reliable choice for powering 24V control circuits, contactors, and high draw zone systems. The unit features NEMA Type E construction and