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.
Features- Constructed of strong zinc die castings.
- Hesitation feature available for unit ventilator cycles requiring a minimum percentage of outdoor air.
Specifications
- Stroke: 2-1/8" to 2-1/2"
- Diaphragm Effective Area (sq in.): 11"
- Maximum Safe Operating Pressure (psi): 25 PSI