the 37C73U-174 is factory-calibrated for natural gas and features a fixed regulator

preventing excessive inrush current

Ensure W1 and W2 signals are correctly landed on the terminal strip to prevent uneven heating or system tripping

This unit is frequently used in constant pressure pilot configurations to provide accurate proportional control

"Herm" for the compressor winding (50 MFD side)

Carrier LA22LA095 Blower Wheel 321894-706 the 37C73U-174 is factory-calibrated forUpgrade or restore your HVAC system with the Carrier LA22LA095 Blower Wheel, a genuine OEM replacement part designed for high performance airflow in residential and commercial air handlers and furnaces. As a veteran technician knows, maintaining static pressure and system efficiency requires a perfectly balanced wheel. This 10x7 blower fan features a 10 inch diameter and 7 inch width, engineered with a 1 2 inch bore to seat securely on standard motor