perfect for steam and hydronic applications

preventing dangerous exhaust leaks and maintaining static pressure for your pressure switches to close

this module (Manufacturer Part #45609-101) utilizes an advanced microprocessor to manage variable speed logic

The blinking sequence corresponds to specific fault codes

Siemens Combustion AGR450240650 U.V. Tube 322838-752 perfect for steam and hydronicThe Siemens Combustion AGR450240650 U. V. Tube is a high precision replacement phototube engineered for industrial and commercial flame monitoring. Designed as a critical sensing component for Siemens UV Flame Detectors, this tube detects ultraviolet radiation in the 190 to 270 nm spectral range. It is the primary replacement cell for several QRA series detectors, including the QRA2M, QRA10M, and QRA51M models. When integrated into the burner's flame