or MR212 series—receives the accurate setpoint signal required for optimal fuel efficiency and stable thermal output

Precise Refrigerant Control: Optimizes R-22 system performance by adjusting flow to match fluctuating heat loads

Featuring a 40 to 85 degrees F cross ambient point range

Designed with an aluminum flange and rolled steel frame for superior thermal management and corrosion resistance

Heil Quaker ICP 1175881 Wire Harness 30067439-890 or MR212 series—receives the accurateThe Heil Quaker ICP 1175881 Wire Harness is a critical electrical interface designed for the precise transmission of 24V and 120V signals across high efficiency furnace and air handler platforms. Engineered as a genuine OEM replacement part, this harness ensures low resistance connectivity between the integrated furnace control (IFC) board, pressure switches, and the inducer motor assembly. In the field, technicians encounter intermittent faults or