OEM Compatibility: Exact replacement for McDonnell & Miller 157-RBP and 157S-RBP series controllers to ensure seamless fitment

you ensure long-term serviceability for hydronic heating systems and small bore central heating applications

it operates natively on 277 VAC systems without external hardware

Thermal Resistance: Manufactured from borosilicate glass to withstand the rapid temperature fluctuations common in steam boiler environments

Heil Quaker ICP 1183890 Conversion Kit Freon OEM Compatibility: Exact replacement forThe Heil Quaker ICP 1183890 Conversion Kit is a critical field upgrade designed to transition older gas furnaces from a legacy radiant sensor configuration to a modern, more reliable flame sensor system. This kit is essential for service technicians working on older Heil, Quaker, and International Comfort Products (ICP) units where the original radiant sensors have failed or become obsolete. By converting to a rectified flame sense signal, you ensure