Skip Ribbon Commands
Skip to main content
  • Product Info
  • Literature


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.

Product Specifications

Dimensions (in.)
5 1/8 in. high x 6 7/8 in. wide (with arm)
Dimensions (mm)
130 mm high x 175 mm wide (with arm)
Maximum Safe Operating Pressure (psi)
25 psi
Maximum Safe Operating Pressure (kPa)
172 kPa
Temperature Range (F)
-20 F to +160 F
Temperature Range (C)
-29 C to +71 C
No hesitation.
Operating Humidity Range (% RH)
5 to 95% RH
Actuator Type
Fail Safe Mode
Spring Return
Stroke (in.)
2-1/8 in. to 2-1/2 in.
Stroke (mm)
54 mm to 63 mm
Actuator Force
Spring Range (psi)
5 psi to 12 psi
Spring Range (kPa)
34 kPa to 83 kPa
Diaphragm Effective Area (sq in.)
11 sq in.
Diaphragm Effective Area (sq cm)
71 sq cm
Air connections
1/8 in. NPT
There is no literature attached to this product, please try another material search. If you believe that there should be literature for this product, please contact Customer Care for website support.