or the main burner fails to kick on despite the thermostat calling for heat

Can this be used for both Natural Gas and Propane (LP) systems

The Johnson Controls SEC99AA-60 is a high-performance UltraCap Armored Capillary assembly designed for critical pressure control applications in commercial HVACR systems

Enhanced Signal Reliability: Direct OEM replacement ensures accurate resistance readings by protecting leads from pull forces

Changing the pitch from the original 21 degrees will alter the amp draw on your HVAC condenser motor

Siemens Building Technology 656-0018 Valve 318518-761 or the main burner failsThe Siemens Building Technology 656 0018 is a professional grade 3 4" normally open angle valve engineered for the precise proportional control of steam, hot water, and chilled water. Built for terminal unit applications like fan coils, baseboards, and reheat coils, this 2 way pneumatic valve features a 4. 6 Cv flow coefficient and a 3 8 psi spring range. Maintenance is streamlined with a design that allows for stem repacking without a complete system