VA-7482-0312 Johnson Controls Actuator

Overview

The Johnson Controls VA-7482-0312 is a compact, electric valve actuator designed to provide proportional control in HVAC applications. It features an innovative auto stroke detection concept, allowing it to be field-mounted over most conventional terminal unit valves and pressure-independent control valves with variable strokes from Johnson Controls and its competitors. Its small footprint makes it ideal for confined installations, such as fan coil applications.

Features

• Auto-commissioning simplifies installation since the model requires no field adjustments.
• Auto-shutoff actuator motor extends operation life by minimizing drive time and wear.
• Compact design allows for direct mounting onto terminal unit valves in space-restricted locations.
• Operating status LED provides direct, bi-color visual diagnostics and status indication.
• 360-degree rotation capability after mounting simplifies wiring alignment in any direction.
• Non-spring return operation offers automated stroke calibration upon power application.

Specifications

• Power Supply: 24 VAC/VDC ±15% at 50/60 Hz, 2.5 VA maximum (Class 2)
• Control Input Signal: 0 to 10 VDC, 2 to 10 VDC, 0 to 5 VDC, 5 to 10 VDC, 0 to 20 mA, or 4 to 20 mA
• Output Force: 21.5 lb (96 N) minimum
• Full Stroke Cycle Time: 8 s/mm (proportional)
• Mechanical Connections: M28 x 1.5 threaded coupling nut; 0.25 in. (6.3 mm) maximum mechanical stroke
• Electrical Connections: 118 inches (3 m) long, 18 AWG cable
• Fluid Temperature Limits: 35 to 203°F (2 to 95°C)
• Protection Rating: NEMA 2, IP43 / IP54 depending on configuration
• Lifespan: 250,000 full stroke cycles

Applications

• Field-mounting onto HVAC terminal unit valves including the Johnson Controls VG4000 and VG5000 Series zone valves.
• Variable stroke control in Pressure Independent Control Valves (PICVs).
• Temperature and flow regulation within confined terminal systems such as fan coils, chilled ceilings, and manifolds.