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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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IWSD Double Panel Exhaust Shutters

QUALITYProducts.
SINCE 1948.

IWSD Double Panel Exhaust Shutters

Triangle’s IWSD Double Panel Exhaust Shutters are designed for long-lasting operation and proper airflow. With a bronze finish, polyester powder coated, welded galvanized steel frame, extruded aluminum blades and bronze pivot bushings, Triangle IWSD Double Panel Exhaust Shutters are equipped to withstand even the most demanding environments.

Details

  • Available to fit fan sizes 36" — 60"
  • EXTRUDED ALUMINUM BLADES
  • WELDED GALVANIZED STEEL FRAME
  • BRONZE PIVOT BUSHINGS
  • POLYESTER POWDER COATED FRAME with bronze finish
  • WALL MOUNT AND FAN MOUNT MODELS
  • SINGLE AND DOUBLE PANEL MODELS