Low Gas Pressure Switch
Flynn Part Number: 170612 (24Vdc, 120Vac available, please call sales (704) 660-1500)
Dungs Low Gas Pressure Safety Switch, 2…20inWC. Designed to de energize the main gas safety valves in the event of unusual low pressure. Normally set to 20% below incoming gas pressure but can be set higher or lower depending on how the system was designed.
Typical 20% below incoming gas pressure
8.9* Fuel Press Switches (Gas or Oil)
8.9.1 A low fuel pressure switch or sensor shall be provided and shall be interlocked into the burner management system
8.9.2 A high fuel pressure switch or sensor shall be provided and shall me the following criteria:
(1) It shall be interlocked into the burner management system
(2) It shall be located downstream of the final pressure-reducing regulator
8.9.3 Pressure switch or sensor settings shall be made in accordance with the operating limits of the burner system
Situated on main gas train.