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the internal bimetal disc may be defective
Is this sensor compatible with 3/8" tubing
and small-scale commercial plumbing setups
ensuring reliable circuit interruption when plenum temperatures exceed safe operating parameters
ZoneFirst SPRD-12X12 Damper Els PW 17895 the internal bimetal disc mayThe ZoneFirst SPRD 12X12 is a professional grade barometric static pressure regulating damper engineered to maintain system integrity in multi zone residential and commercial HVAC applications. Built from heavy duty 22 gauge galvanized steel, this 12" x 12" rectangular bypass damper utilizes a counter balanced weighted arm to automatically relieve excess static pressure as zone dampers close. By bleeding off excess air, it prevents evaporator coil
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