Description
The Johnson Controls D-3073-4 is a pneumatic piston damper actuator. It is a multipurpose positioning device used to position dampers - primarily on unit ventilators, VAV boxes, terminal units and small ventilating dampers - in response to the output of a pneumatic controller or electro-pneumatic transducer. Control air pressure acts on the piston against a calibrated spring, so damper position tracks the control signal.
The D-3073 is supported by Johnson Controls' shared damper actuator hardware range, which also covers the D-3070, D-3153, D-4070 and D-4073 - so mounting brackets, crank arms, linkage rods, pivot post parts and the D-3073-100 rubber boot kit are all available as service items. A rubber diaphragm repair kit is also produced covering the D-3070, D-3073, D-3153, D-3244 and D-3246 actuators.
Specification note: the spring range and mounting bracket configuration for this specific suffix are not published in the literature available to us, so we have not stated them. Johnson Controls does state that the D-4073 is a direct replacement for existing D-3073 actuators - if this unit is being replaced rather than repaired, the D-4073 range is the current equivalent. Please confirm the spring range marked on the actuator and we will verify the configuration.
* Brand / Manufacturer: Johnson Controls
* Model / Part Number: D-3073-4
* Series: D-3073 / D-3000 Series pneumatic damper actuators
* Product Type: Pneumatic piston damper actuator
* Spring Range: Not established - please confirm
* Mounting Bracket: Not established - please confirm
* Current Direct Replacement: D-4073 series
* Service Parts: D-3073-100 (rubber boot kit), D-3073-604 (weather resistant ball joint), D-3073-105 (mounting post kit)
Typical applications include unit ventilator, VAV box and terminal unit damper control, and outdoor air and mixing box dampers on pneumatically controlled air handling equipment. Please confirm the spring range required.. Johnson Controls. Johnson Controls. D-3073-4.
Warranty Information
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