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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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CMPC Series

SINCE 1948.

CMPC Series

Owner's Manual
Sales Sheet
Choose a model below to view drawing
30” CMPC3021
36” CMPC3613
42” CMPC4213
48” CMPC4815

The “CMPC” is great for factories, gymnasiums or anywhere there is a need to have precise directional ceiling mounted air


  • Direct drive
  • Easy overhead mounting
  • Safety cable included
  • Tilts up/down 90° swivels 360°

See full specifications for sizing and performance data

View Full Specs

Available Mounting Equipment

Vertical column/beam mount available in addition to the standard ceiling mount.

View Drawings
Beam Mount VMB111