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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
Does this model require a manual reset after a pressure drop
Integrating this thermal expansion valve restores system balance
Direct compatibility with numerous Burnham boiler models
and viruses within the airstream
Key Benefits: Direct OEM Compatibility: Specifically engineered as the drop-in replacement for the 334358-701 and HK06NB015
Siemens Combustion QRA4M.U Scanner R-407A Does this model require aThe 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