Carlin SQN71 User manual
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
1Disengaging Pin (In the engaged
position)*
2Adjustment Wrench
3Cam Stack
4Damper Position Scale ( Damper po-
sition indicated by slit in the white ring
5Red Cam (High-Fire)
6Blue Cam (Low-Fire)
7Transition 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
Tech Hotline: 800-989-2275
Phone 203-680-9401 Fax 203-680-9403
126 Bailey Road, North Haven, CT 06473
www.carlincombustion.com
MNSQN71 042820
Setting High Fire (Red Cam)
Setting Transition (Orange Cam)
Transition cam is set with a screwdriver. Transition
should be set half way between High Fire and Low
Fire to start. Adjust if necessary.
Setting Low Fire (Blue Cam)
Replacing Cover
Before putting on the actuator cover, be sure the
disengaging pin has been engaged.
CAM INDICATION
Cam
#Color Position
Settings
701CRD,
702CRD
801CRD,1050FFD,
1150FFD
702GO, 702GAS,
801GO, 801GAS
I Red High-Fire 90 90 60-70
II Blue Low-Fire 10 0 0
III Orange Transition 50 45 30-40
NOTE: Before setting your cams, make
sure the disengaging pin is pushed in.
All Carlin burners with the SQN71 damper
motor should be set at the recommend
settings shown in the table at the right.
Please reference above chart for exact settings.
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