A normally closed valve would require constant power to stay open

Standardized Mounting: Features a footprint designed for quick installation in standard HVAC electrical panels

this Permanent Split Capacitor (PSC) motor features a 48 Nema Frame Size and a 5

The adjustable timing (13 to 130 seconds at no load) and integrated SPDT auxiliary switch provide field flexibility for sequencing and feedback

Bard 8402-044 Limit Switch 321142-301 A normally closed valve wouldThe Bard 8402 044 is a precision engineered L180F manual reset limit switch designed specifically for heavy duty HVACR applications. This upper limit safety control is a critical safety component that monitors heat exchanger temperatures, effectively breaking the electrical circuit if the ambient temperature exceeds the fixed 180 degree Fahrenheit threshold. As a dedicated Bard replacement part, this switch ensures high limit protection for various