The Resideo RA89A1074 Relay is a reliable

though it is best practice to verify shaft keyway alignment during installation

Reduced Arcing: High-performance contacts reduce electrical noise and wear

it provides the stable manifold pressure required for optimal combustion efficiency

The Sporlan 450277-001 Drier is a high-capacity 3/8" ODF liquid line drier designed for professional-grade moisture and acid removal in various refrigeration and HVAC systems

Lochinvar & A.O. Smith 100173796 Assembly 326010-701 The Resideo RA89A1074 Relay isThe Lochinvar & A. O. Smith 100173796 Gas Air Arm Assembly is a critical combustion component engineered for high efficiency boiler systems. Designed specifically for the Lochinvar Knight KBN150, AWN150, and SNR150 series, this genuine OEM manifold directs the precise mixture of fuel and air into the burner chamber. Maintaining the correct stoichiometric ratio is essential for preventing short cycling and ensuring the modulating blower operates at