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Key Benefits for Contractors Universal Compatibility: Validated for use with all major refrigerants
While sized for up to 5 tons
using it with liquid propane would present a major safety hazard
Can I use this on an HFK series balanced port valve
and 15 PSIG saturated steam applications
Reznor 123974 Fan Switch Els PW 17895 Key Benefits for Contractors UniversalThe Reznor 123974 Fan Switch is a precise thermal control engineered for gas fired unit heaters and duct furnaces. Designed to manage blower cycles based on internal heat exchanger temperatures, this F135 30F fan control ensures the fan engages when the plenum reaches 135F and terminates operation once it cools to 105F (30F differential). As a direct replacement for part 48706, it maintains the critical timing required to prevent heat exchanger stress
