Aprilaire 8346 User's Guide download pdf (Page 17)

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Dampers

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The “Engineered Reliability” of Aprilaire

Zoned Comfort Control Dampers

Aprilaire

residential dampers feature a technological breakthrough in damper design. The Flexible Link

™

design used in Aprilaire dampers eliminates the component most prone to failure in competitor’s residential

dampers… GEARS! The simple, yet ultra-reliable design is illustrated below. As the damper motor rotates the

SPOOL, the Flexible Link shortens and the spring-loaded LEVER ARM rotates the blade. When power to the

motor turns off, the spring quietly returns the blade to the open, “Fail-Safe” position. It’s really that simple.

Step Two: Select Zoned Comfort Control Dampers

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Aprilaire 8346 User's Guide Page 17