This unit operates on a 120VAC 60Hz input

providing the necessary hardware to restore proper combustion air flow and venting performance

Contractor Grade: Standard 1/8" NPT air connections and top mounting holes ensure seamless integration into existing Schneider Electric or legacy Barber Colman footprints

featuring a mounting profile that fits standard 9/16-inch by 1-1/8-inch cutouts

Can this relay be used on other brands besides Carrier

Siemens Combustion QRA2(1) UV Detector Freon This unit operates on aThe Siemens Combustion QRA2(1) UV Detector is a high performance ultraviolet flame sensor designed specifically for the supervision of gas and oil flames in industrial and commercial burner systems. Engineered for intermittent operation, this normal sensitivity detector utilizes a side viewing photodiode to monitor UV radiation in the 190 to 270 nm spectral range. The QRA2(1) features a specialized metallized plastic housing that effectively prevents