Kele Product UCP-722 Transducer 326010-701 or a defective gas valve

or a defective gas valve

This thermostat requires a 16 VDC supply voltage (typically 14-20 VDC) and is designed to interface with DC-powered controllers

This blade is designed for 1/2-inch diameter shafts

This strainer basket assembly features a durable bronze housing and a high-mesh stainless steel screen capable of withstanding the thermal and pressure demands of hydronic and steam systems

Environmental Protection: The NEMA 4X rated housing prevents moisture and corrosion from compromising sensor wiring

Kele Product UCP-722 Transducer 326010-701 or a defective gas valveThe Kele UCP 722 is a high performance electro pneumatic transducer designed to provide precise interface control between electronic building automation systems and pneumatic field devices. Engineered with advanced microcontroller based poppet valve technology, this unit effectively converts 4 20 mA, 0 5 VDC, or 0 10 VDC input signals into a proportional 3 15 psig or 0 20 psig pneumatic output. As a veteran grade analog to pneumatic signal converter,