Place a stop adapter to block the
OUTDOOR AIR damper from opening
beyond the required position.
Press the attaching screw through
the label at a line marked with an X.
Tighten the screw.
Samples Only
Actual appearance
may vary.
Place a stop adapter to block the
OUTDOOR AIR damper from opening
beyond the required position.
Press the attaching screw through
the label at a line marked with an X.
Tighten the screw.
Samples Only
Actual appearance
may vary.
Some units have only electrically operated dampers for controlling outdoor-air intake. For units with the
economizer or Purge options, use the airflow-adjustment procedures in the appropriate manual appendix.
Otherwise:
Place a mechanical stop adapter on the actuator of the outdoor-air intake damper. Approximately 25% open will
do for a first approximation. The actual position will vary according to duct pressure drops and other issues. The
final position will be determined by trial and error.
Actuators may be arranged for clock-
wise or counter-clockwise rotation.
Risk of contact with moving parts. Can cause injury or death.
This product contains rotating parts and V-belt drives. Some installation, service, and
maintenance procedures could expose personnel to the risk of injury or death from
contact with these parts.
Using only approved devices (e.g. locking safety switch), disconnect, lockout, and
tagout all sources of electrical energy before working inside the unit cabinet. Allow
adequate time for rotating parts to stop. Follow all applicable safety regulations.
WARNING
T.A.B.