A control with a minimum10-Second Post-
Purge MUST be used with this Damper Motor
to ensure the High-Fire Damper is closed at
the end of the call for heat/at the start of your
next call for heat.
Installer/servicer – Except where specifically stated
otherwise, this Supplement must be used only by a
qualified service technician. Follow all guidelines
in the Burner Manual and Boiler Manual. Failure
to comply with this or other requirements in this
manual could result in severe personal injury, death
or substantial property damage.
©
Copyright 2020 – Carlin Combustion Technology
Tech support 800-989-2275
carlincombustion.com
MODEL
SQN71
Damper
Actuator
Supplement
Quick Reference Guide
Reference
Number
Description
1
Disengaging Pin (In the engaged
position)*
2
Adjustment Wrench
3
Cam Stack
4
Damper Position Scale ( Damper po-
sition indicated by slit in the white ring
5
Red Cam (High-Fire)
6
Blue Cam (Low-Fire)
7
Transition Cam (Shares adjustment
scale with Blue Cam)**
*
* To rotate damper and cam stack by hand, disengaging pin must be pushed in. The pin
must be out when the burner is operating
**Transition cam sets the transition point between Low Fire and High Fire