McDonnell & Miller FS7-4WL Snap Switch Freon and the spring-return time is

and the spring-return time is also typically under 15 seconds for rapid fire safety response

Can I use a common wire with this thermostat

improving system logic and HVAC energy efficiency

spring-return unit featuring a 3-6 psi spring range

McDonnell & Miller FS7-4WL Snap Switch Freon and the spring-return time isThe McDonnell & Miller FS7 4WL (Part Number 120301) is a heavy duty, industrial grade liquid flow switch engineered for high demand applications requiring precise flow monitoring. Featuring a 1 1 4" NPT connection and a robust SPDT snap switch, this unit is designed for integration into control circuits that signal alarms, start motors, or cycle pumps. The FS7 4WL is built for durability with an extended paddle arm and trimmable stainless steel