Beckett Damper Actuator User Manual

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
Adjustment scale

Damper Actuator

For Commercial Two-Stage Burners

Adjustment Instructions

Setting the High Fire Air and
Low Fire Air

Low Fire Air Set with Blue Cam

Adjustment Wrench

High Fire Air is set with the Red Cam

Adjustment Wrench

Setting the Transition

Cam is disengaged

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.

An old air setting specification of 7 is equal to 70° on the
damper position scale of this new damper actuator.
If adjusting the air settings while the burner is operating,
it is necessary to cycle the burner from High to Low Fire
or Low to High by using the lighted low fire hold switch.

After you complete your adjustments make certain the
disengaging pin has been reengaged with the damper
position set between the high fire and low fire limits.
Replace the actuator cover, making sure it is correctly
seated, and test the burner for proper firing at low fire,
high fire and in transition between low and high.

For more information, contact: www.beckettcorp.com

R.W. Beckett Corporation • P. O. Box 1289 • Elyria, Ohio 44036 • [phone] • [phone] • FAX [phone]
R.W. Beckett Canada Ltd. • Unit 3 - 430 Laird Road • Guelph, Ontario, Canada N1G 3X7 • [phone] • FAX [phone]

© 2004 R.W. Beckett Corporation Form No. 61578 09/04

Printed in U.S.A.