Key Benefits for HVAC Contractors Versatile Power Compatibility: Operates on both 24 VAC and 24 VDC

the 311200 kit includes the necessary replacement gasket to ensure a proper seal between the float chamber and the valve assembly during maintenance

or the diagnostic LED on the control board flashing a "Pressure Switch Stuck Open" or "Closed" error code

Its positive dead-end lock-up capability prevents pressure creep during appliance off-cycles

This kit features a 5/8" x 7-3/8" borosilicate glass tube designed to withstand the thermal stresses of high-pressure steam environments

Siemens Combustion QRA10M.C Sensor 318518-761 Key Benefits for HVAC ContractorsThe Siemens Combustion QRA10M. C Sensor is a high sensitivity UV flame detector designed for the intermittent supervision of gas and oil flames, as well as ignition spark proving. Engineered for industrial burner controls, this sensor features a spectral sensitivity range of 190 to 270 nm, ensuring it reacts only to the ultraviolet radiation of the flame and remains blind to glowing firebrick or ambient lighting. The high sensitivity UV cell is housed