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SQS Electronic Valve Actuator, 24 Vac, 3-Position (Floating) Control, Fail-Safe
Troubleshooting
Dimensions
Service Envelope
Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as
design improvements are introduced. Product or company names mentioned herein may be the trademarks of their respective owners.
© 2015 Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
1000 Deerfield Parkway
Buffalo Grove, IL 60089
USA
+ 1 847-215-1000
Check wiring for proper connections and secure attachments.
Check for adequate power supply.
Figure 3. Dimensions of the SQS85.53U Actuator.
Dimensions shown in Inches (Millimeters).
Minimum access space recommended
4 inches (100 mm)
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8 inches (200 mm)
Technical Instructions
Document Number 155-308P25
March 17, 2015
Document No. 155-308P25
Printed in the USA
Page 5
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