Field Serviceability: Employs standard ring pack packings for industry-leading life and simplified maintenance during routine inspections

Field-Proven Reliability: Built to the rigorous standards of the Robertshaw 7000 series for long-term mechanical durability

The Cleveland Controls AFS-953-B is a contractor-grade differential pressure sensing switch engineered for high-accuracy monitoring of air and non-combustible gases in commercial HVAC draft control systems

the mechanical bellows system functions accurately regardless of mounting position

effectively signaling the modulation amplifier to transition to high fire when the ambient temperature falls below your target setpoint

Lochinvar & A.O. Smith 100189392 Valve R-407A Field Serviceability: Employs standard ringThe Lochinvar & A. O. Smith 100189392 Valve is a 24v Gas Valve Kit engineered for natural gas and liquid propane (LP) applications in high efficiency boilers and water heaters. Specifically designed for the Lochinvar FTX500 series, including FTX500L and FTX500N models, this valve kit provides precise fuel regulation to maintain consistent manifold pressure. As an essential component for direct spark ignition or hot surface ignition sequences, it