User Manual

Damper Actuator

For Commercial Two-Stage Burners

Adjustment Instructions

The Disengaging Pin allows the Damper

and Cam Stack to be rotated by hand

The

Disengaging Pin

must be out when

the burner is operating

Adjustment Instructions

Printed on Cover

Disengaging Pin in the

Engaged Position

Cam Stack

Adjustment Wrench

Damper Position Indicator

(Black mark on white ring)

Damper Position Scale

Red High Fire Cam with

White adjustment Scale

Blue Low Fire Cam with

White adjustment scale

Transition Cam shares

Adjustment scale

PAGE 1
Damper Actuator For Commercial Two-Stage Burners Adjustment Instructions Adjustment Instructions Printed on Cover Disengaging Pin in the Engaged Position Cam Stack Adjustment Wrench The Disengaging Pin allows the Damper and Cam Stack to be rotated by hand The Disengaging Pin must be out when the burner is operating Damper Position Indicator (Black mark on white ring) Damper Position Scale Red High Fire Cam with White adjustment Scale Blue Low Fire Cam with White adjustment scale Transition Cam shares A
PAGE 2
Damper Actuator For Commercial Two-Stage Burners Adjustment Instructions Setting the High Fire Air and Low Fire Air Setting the Transition Cam is disengaged Low Fire Air Set with Blue Cam Adjustment Wrench High Fire Air is set with the Red Cam Transition Cam is set with Screwdriver The ORANGE CAM sets the transition point between Low Fire Oil and High Fire Oil. It should be set halfway between the settings of the RED Cam and the BLUE Cam.