Honeywell VC4011ZZ11/U – VC Series 2-Position Hydronic Valve Actuator Description: Honeywell VC Series balanced 2-position hydronic valves are used in domestic and small commercial cooling applications to control the flow of cold water. These valves combine durable construction materials with precise actuator performance to ensure reliable operation in HVAC control systems. Valve Construction: • Valve housing made of bronze • Spindle made of stainless steel • O-ring seals made of EPDM rubber • Actuator cover made of Noryl™ (94V-0) • Actuator base made of Ryton™ (94V-0) • Cartridge made of Ryton™ (polyphenylene sulphide) & Noryl™ (polyphenylene oxide) Popular Application: Fan Coil System ________________________________________ 🔧 Key Technical Points • Model: VC4011ZZ11/U • Type: 2-Position, On/Off Actuator (Line Voltage) • Power Supply: 110 V AC, 50/60 Hz • Operation: Motor-driven with spring return (fail-safe close) • Control Signal: 2-wire (thermostat or controller) • Force Output: ~290 N (≈ 66 lbf) • Stroke: 6 mm • Operating Time: 6–10 seconds full travel • Ambient Temperature: 0 °C to +60 °C • Mounting: Snap-on to VC-Series valve body (tool-free) • Protection Class: IP40 ________________________________________ 🌀 Application Ideal for fan coil units, zone heating/cooling systems, and chilled-water circuits where precise on/off control of water flow is required. When powered, the actuator opens the valve to allow water flow; when power is removed, the spring returns the valve to its closed position, ensuring safe and efficient operation.