D-3244-3 Johnson Controls Damper Actuator

Overview

The Johnson Controls D-3244-3 is a heavy-duty pneumatic piston damper actuator designed for precise positioning of dampers and inlet vanes in commercial HVAC and building automation systems. Delivered as a complete, ready-to-install linear assembly, it features integrated swivel mounting hardware that eliminates the need for separate linkage components, reducing field installation time. The unit is equipped with a factory-included D-9502-5 positioner to provide accurate, repeatable, and high-torque control across its full stroke range.

Features

• Complete ready-to-install linkage package includes a swivel mount bracket, clevis, and crankarm.
• Reliable spring-return fail-safe operation ensures the damper returns to a safe position upon loss of control air pressure.
• Integrated D-9502-5 positioner delivers precise and repeatable stroke positioning.
• Constructed with a durable die-cast aluminum body and a synthetic elastomer diaphragm for long-term operational reliability.
• Low air consumption design minimizes demand on the overall pneumatic control system.

Specifications

• Actuator Type: Pneumatic Linear Piston
• Spring Range: 8 to 13 psi (55 to 90 kPa)
• Control Pressure: 8 psi minimum to 25 psi maximum
• Stroke: 4 inches (102 mm)
• Force: 27.3 lbf at 20 psi
• Diaphragm Size: 23.4 square inches
• Air Connection: 1/8-inch NPT barbed fitting for 5/32-inch or 1/4-inch O.D. polytubing
• Maximum Air Consumption: 2 SCIM (0.55 mL/s)
• Operating Temperature Range: -20°F to 150°F (-29°C to 66°C)
• Mounting Type: Swivel Pedestal / Swivel Mount

Applications

• Commercial HVAC damper control systems.
• Building automation and pneumatic infrastructure.
• Air handling units and economizer damper actuation.
• Variable Air Volume (VAV) and mixed-air positioning requiring fail-safe protection.
• Centrifugal fan and compressor inlet vane modulation.