The SBQ (168193) is internally equalized

California Proposition 65 Warning:

this Safgard series control provides precise boiler safety monitoring and simplified troubleshooting via an integrated test button

Pre-Wired Design: Features 12-inch color-coded leads to streamline field wiring and reduce installation labor

Key Benefits Verified OEM Compatibility: Purpose-built for the 157-R Series to ensure correct alignment of internal float linkages and bellows assemblies

York S1-4HK16500806 Heat Kit 321142-301 The SBQ (168193) is internallyThe York S1 4HK16500806 Heat Kit is a heavy duty 8kW electric heater specifically engineered for seamless integration into York air handlers (AHP, SHP, AV, SV, MA, and MV series). As a veteran preferred 8kW electric heat kit with breaker, this unit provides critical supplemental heating and serves as a primary heat source in mild climates. The single phase 208 230V design incorporates a dedicated circuit breaker for integrated over current protection,