This DSI module eliminates the need for a standing pilot

The Beckett AF57XNSS Air Tube Combination is an integral component for optimizing combustion in oil-fired HVAC systems

and is a single-phase component

Industrial Durability: The cast aluminum housing is finished with a corrosion-resistant blue epoxy to handle ambient moisture and industrial wear

supply air temperature

Resideo L8148A1017 Relay 322057-301 This DSI module eliminates theThe Resideo L8148A1017 High Limit Aquastat Relay is a specialized immersion type controller designed for 120Vac forced hydronic heating systems. This unit provides critical high limit protection while functioning as the primary switching relay for both burner and circulator motors. Engineered for high demand residential and commercial boilers, it features a 140 240 degree high limit operating range with a fixed 8 degree differential. The SPST