Debris-Resistant Design: The sealed housing protects internal contacts from dust and insects

01% of rated capacity) for efficient temperature control

Robust Construction: Encapsulated coil design resists moisture

you know that maintaining precise ignition and fuel delivery is critical for combustion efficiency and preventing nuisance lockouts

you must install an isolated transformer to prevent electrical interference or damage to the circuit

Resideo VCZAR1100 Valve 320819-301 Debris-Resistant Design: The sealed housingThe Resideo VCZAR1100 is an industrial grade 1 inch NPT two way cartridge cage valve engineered for precision control in hydronic systems. Designed with a 6. 6 Cv flow coefficient and a linear flow characteristic, this valve ensures stable temperature regulation in both chilled and hot water applications. The bronze body construction, paired with a stainless steel stem and EPDM O ring seals, provides the durability required for closed loop systems