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The robust bimetal construction is built to withstand the thermal stress of frequent cycling
providing superior durability and corrosion resistance compared to standard copper components
The green spring provides a precise 6-14" W
making it an ideal choice for contractors looking for a 100VA 480V to 120V transformer with a small footprint
Precision Control: The two-position 24V operation integrates seamlessly with standard building automation systems and thermostats
ZoneFirst SPRD-20X8 Damper Els PW 17895 The robust bimetal construction isThe ZoneFirst SPRD 20X8 is a heavy duty barometric bypass damper engineered for precise static pressure regulation in multi zone residential and light commercial HVAC systems. This 20" x 8" mechanical unit utilizes a field adjustable weighted arm to facilitate effective bypass air management without the requirement for complex electronic controls or wiring. As zone dampers close and duct pressure rises, the ZoneFirst SPRD 20X8 automatically opens to
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