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Honeywell MP516 Pneumatic Unit Ventilator Damper Actuator

Pneumatic Unit Ventilator Damper Actuator

Used to control the damper on unit ventilators. Can be adapted to various unit ventilator control cycles. Replacement devices are available for Johnson, Powers, Robertshaw, Barber-Colman, and older Honeywell unit ventilator damper actuators.

• Constructed of strong zinc die castings.
• Hesitation feature available for unit ventilator cycles requiring a minimum percentage of outdoor air.

Select a link under the "item" tab below to order.

Cat #Comments(psi)(kPa)Actuator Force
MP516A1087The lever arm moves to the desired minimum position as air pressure increases from 0 to 3 psi, hesitates from 3 to 8 psi, and completes its stroke from 8-12 psi.3 psi to 12 psi21 kPa to 83 kPaMedium
Actuator Type: Damper
Fail Safe Mode: Spring Return
Air Connections: 1/8 in. NPT
Stroke: 2-1/8 in. to 2-1/2 in. (54 mm to 63 mm)
Diaphragm Effective Area: 11 sq in. (71 sq cm)
Temperature Range: -20 F to +160 F (-29 C to +71 C)
Maximum Operating Pressure: 25 psi (172 kPa)
Humidity Range: 5 to 95% RH

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