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
© 2004 R.W. Beckett Corporation Form No. 61578 09/04
Printed in U.S.A.
R.W. Beckett Corporation • P.O. Box 1289 • Elyria, Ohio 44036 • (800) 645-2876 • (440) 327-1060 • FAX (440) 327-1064
R.W. Beckett Canada Ltd. • Unit 3 - 430 Laird Road • Guelph, Ontario, Canada N1G 3X7 • (800) 665-6972 • FAX (519) 763-5656
For more information, contact: www.beckettcorp.com
Setting the High Fire Air and
Low Fire Air
Low Fire Air Set with Blue Cam
Adjustment Wrench
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.
Setting the Transition
Cam is disengaged
High Fire Air is set with the Red Cam
Adjustment Wrench
The ORANGE CAM sets the transition point between
Low Fire Oil and High Fire Oil.
Transition Cam is set with Screwdriver
It should be set halfway between the settings of
the RED Cam and the BLUE Cam.
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.
Damper Actuator
For Commercial Two-Stage Burners
Adjustment Instructions
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1
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2
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