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Additional Resources

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Frequently Asked Questions View all FAQs
How do you order the correct replacement parts?

Before ordering replacement parts, make sure you have the fan model and serial number.

Where can I find instructions to wire a motor on my fan?

The nameplate of the motor includes a wiring diagram. Wiring diagrams can also be found beneath the motor image in our Buy Parts section. Simply click the wiring diagram icon to view it.

Can I install a thermostat?

Yes, but only if the thermostat has a simple on/off operation. Please note: if the thermostat varies the amount of voltage delivered, it will damage the motor and void the warranty.

Can I install my whole house fan vertically?

Comfort Cooler (CC) series whole-house fans may be mounted vertically, however, the AS and CSS shutters will not function properly in the vertical position. We do not carry a ceiling shutter for vertical installation. Vertical installation instructions.

Quality Products

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Series 3100 Dampers

QUALITYProducts.
SINCE 1948.

Series 3100 Dampers

Triangle Engineering manufactures & delivers high quality aluminum back draft dampers at competitive prices. Our dampers are all engineered to combine strength and durability in the use of providing controlled airflow against drafts. Our dampers are available in several styles to satisfy your engineering specifications.

Available Options

  • Heavy Duty Blade .050” Extruded Aluminum Blade
  • Conduit Hole Through Blade Line
  • Motor Operator
  • Adjustable Spring Counter Balance
  • Adjustable Weighted Counter Balance
  • Bird Screen
  • Insect Screen
  • Chain Operator
  • Full-Length Hinge Seal

Series 3100 Standard Specifications

Construction45 degree mitered corners; riveted linkage 3000-3200 screwed corners
FinishMill Finish
Max Single Section Size*48″x48″
Min. Size*6″x6″
Blade SealsFull length vinyl weather strip
Blade Thickness.020 Roll-Formed Aluminum Mill Finish
Frame StyleFront Flanged Mount
Mounting ConfigurationVertical Position A Horizontal Position B (Air Flow Up) Horizontal Position C (Air Flow Down)
Frame MaterialExtruded Aluminum

*Call for special sizes