Auto-Zone Control Systems Auto-Zone Plus Systems Installation & Operation (Version 03A) - Manual (Page 49)

Auto-Zone Plus
Section 2
Design Guide 2-17
See Figure 2-2 for a typical bypass damper mounting location. See Figure 2-11 for
typical Bypass Wiring Interface Board wiring instructions.
Warning:
If sheet metal screws are used to mount the dampers, be certain that
they do not interfere with the movement of the damper blade.
Warning:
Never depress the actuator clutch with power applied. Unplug the
actuator cable before depressing the clutch and attempting to rotate
the damper blade. Do not force the damper blade as this can damage
the gears in the damper actuator.