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This coil is specifically calibrated for GC Valves S4 series operators
reducing energy waste and preventing "smoke" calls from homeowners
preventing casing rupture
extending the operational life of the primary control board
ZoneFirst 4PDR Relay This coil is specifically calibratedThe ZoneFirst 4PDR Relay is a specialized 24Vac 4PDT relay engineered for multi purpose HVACR control and complex zoning logic. This unit features a 4 Pole Double Throw configuration, allowing a single 24V signal to switch four independent sets of contacts. It is most commonly deployed as a slave damper control relay, enabling a technician to drive up to four separate dampers from one zone on a control panel or a single switch. The 4PDR utilizes a
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