Do motorized control dampers need to be installed perfectly level to work?

Yes. If a large multi-blade motorized control damper frame is twisted, racked, or installed out-of-plumb, the internal linkage rods will bind, causing the motorized actuator to pull too many amps, trip out, or fail to close the blades tightly.

[' Yes. If a large multi-blade motorized control damper frame is twisted, racked, or installed out-of-plumb, the internal linkage rods will bind, causing the motorized actuator to pull too many amps, trip out, or fail to close the blades tightly.']

Stop if

• Use this as training guidance. The foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, and AHJ/code requirements always control the final answer.

Steps

• Yes. If a large multi-blade motorized control damper frame is twisted, racked, or installed out-of-plumb, the internal linkage rods will bind, causing the motorized actuator to pull...

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