ZoneFirst’s freshex® Fresh Air System is the latest in home comfort offering an economical ventilation solution to both homes and businesses. Designed for simple installation and compatibility with existing forced-air systems in accordance with local and federal codes, homeowners can now enjoy great indoor air quality from a brand name that they can trust! The FX1 features adjustable open-damper time settings between 5-45 minutes per every hour, easy-to-read LED indicators and of course, ZoneFirst’s patented color-coded push-in terminal blocks.
FX1 kits include the RDSC, a 24VAC normally closed, spring return damper that powers open on a call from the FX1 and spring return CLOSED when off. Any of the ZoneFirst spring return dampers can be field converted between normally open and normally closed.
To order, use model FX with the size of the RDSC desired.