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MS4120F, MS4620F, MS8120F FAST-ACTING, TWO-POSITION ACTUATOR
To tandem mount actuators, proceed as follows:
1. Attach the bolt to the inner actuator's outer slot with the
nut. See Fig. 1.
2. Place inner actuator over damper shaft; and hold
mounting bracket in place.
3. Mark screw holes on damper housing.
4. Remove actuator and mounting bracket.
5. Drill or center-punch holes for mounting screws (or use
no.10 self-tapping sheet metal screws).
6. Turn damper blades to desired normal (closed) position.
7. Place actuator and mounting bracket back into position.
8. Secure bracket to damper box with sheet metal screws.
2
2
IMPORTANT
Attach the bolt only to the inner actuator. Ensure the
outer actuator is free to float, affixed only to the shaft.
Automation and Control Solutions
Honeywell
Honeywell Limited-Honeywell Limitée
1985 Douglas Drive North
35 Dynamic Drive
Golden Valley, MN 55422
Scarborough, Ontario
M1V 4Z9
62-0182
B.B. 3-02
1
ENSURE MOUNTING ASSEMBLIES (BRACKET AND BOLT) ALLOW ACTUATORS TO FLOAT INDEPENTLY ALONG
INDICATED AXIS. WHEN NOT ALLOWED TO FLOAT, THE RESULTING BINDING AND/OR COMPETITION CAN
DAMAGE THE ACTUATORS AND REDUCE TORQUE OUTPUT.
2
ACCESSORY BRACKET, BOLT, AND NUT ARE NOT SUPPLIED WITH THE ACTUATOR.
3
MAINTAIN EQUAL SPACING BETWEEN ACTUATORS ALONG THE LENGTH OF THE HOUSINGS.
Fig. 1. Tandem mounting actuators to damper housing.
Honeywell International
Control Products
Honeywell Building
17 Changi Business Park Central 1
Singapore 486073
Printed in U.S.A. on recycled
paper containing at least 10%
post-consumer paper fibers.
9. Using 10 mm wrench, tighten shaft coupling securely
onto damper shaft using minimum 120 lb-in., maximum
180 lb-in. torque.
10. Place outer actuator over damper shaft using the bolt as
an anti-rotation tab.
NOTE: Maintain equal spacing between actuators
along the length of the housings. See Fig. 1.
11. Using 10 mm wrench, tighten shaft coupling securely
onto damper shaft using minimum 120 lb-in., maximum
180 lb-in. torque.
1
Honeywell Europe S.A.
3 Avenue du Bourget
1140 Brussels
Belgium
3
M20427
By using this Honeywell literature, you agree that Honeywell will have no liability
for any damages arising out of your use or modification to, the literature. You will
defend and indemnify Honeywell, its affiliates and subsidiaries, from and against
any liability, cost, or damages, including attorneys' fees, arising out of, or
resulting from, any modification to the literature by you.
Honeywell Latin American
Region
480 Sawgrass Corporate Parkway
Suite 200
Sunrise FL 33325
www.honeywell.com
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