Siemens Combustion QRA4M.U Scanner L99H008 which enhances reliability under high-cycle

which enhances reliability under high-cycle conditions

Contractor-Grade Durability: Constructed to withstand the constant thermal cycling and high-heat environments of commercial water heating applications

Common Questions What does the 802003272 relay protect against

Remember to recalibrate the calibration screw in the center of the gas cock plug if the housing is repositioned

Extended Reach: The factory-terminated 32-foot shielded cable reduces the need for field-splicing

Siemens Combustion QRA4M.U Scanner L99H008 which enhances reliability under high-cycleThe Siemens Combustion QRA4M. U is a high sensitivity UV flame scanner engineered for the rigorous supervision of gas or oil flames and ignition spark proving in intermittent burner operations. As a veteran grade flame detector, this sensor utilizes a specialized UV sensitive cell with two electrodes designed to ignite upon detecting radiation within the 190 to 270 nm spectral range. This ignition triggers the necessary current in the flame detector