VA-8020-1 Johnson Controls Valve Actuator

Overview

The Johnson Controls VA-8020-1 is a synchronous, motor-driven, non-spring return electric valve actuator that provides floating/incremental control for 1/2 and 3/4 inch valves in HVAC applications. It reliably generates a minimum of 22 pounds of shutoff force in a compact, easy-to-install package that compensates for valve seat wear without requiring field calibration.

Features

• Provides floating/incremental control from a three-wire, nominal 24 VAC input signal
• Simplified setup and adjustment procedures reduce installation costs
• Compact assembly fits most unit vent and baseboard applications
• Reversible synchronous motor accurately positions the valve
• Lever-operated force sensor stops the motor at the end of travel to ensure tight shutoff
• Maintains shutoff force even if power to the actuator is removed

Specifications

• Power Supply: 24 VAC at 50/60 Hz, 3.4 VA minimum
• Input Impedance: 250 ohms nominal
• Shutoff Force: 22 lb (98 N) minimum
• Valve Stroke: 5/16 inch (8 mm) maximum
• Stroke Time: Approximately 90 seconds at 60 Hz / 108 seconds at 50 Hz
• Ambient Operating Temperature: 35 to 150 degrees Fahrenheit
• Fail-Safe Mode: Non-spring return

Applications

• Heating, Ventilating, and Air Conditioning (HVAC) zone control systems
• Modulating or mixing applications with compatible two-way and three-way valves
• Commercial unit ventilator and baseboard heating installations
• Retrofitting VG7000 Series bronze valves, VT Series terminal unit valves with slotted stems, and VB-5×39 Series flare valves