The Robertshaw 1830-490 Pilot Assembly is a versatile 6CH24-6 Uni-Kit designed for service technicians who require a reliable incinerator target pilot for universal applications

it serves as a direct drop-in for 440V and 370V systems

this specific model is a 240V infinite switch

which is critical in applications where a damper must remain partially open to ensure a minimum percentage of air circulation even when the controller signal is at zero

ZoneFirst SPRD-12X12 Damper Els PW 17895 The Robertshaw 1830-490 Pilot AssemblyThe 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