Installation Instructions
Document No. 129-335
Installation Instructions
April 1, 2021
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. © 2021 Siemens Industry, Inc.
Siemens Industry, Inc.
Smart Infrastructure
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Buffalo Grove, IL 60089
USA
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Document No. 129-335
Printed in the USA
Page 4 of 4
Dimensions
Figure 10. Dimensions of the SF Series Actuator Shown in Inches (Millimeters).
Service Envelope
Minimum access space recommended: 8 inches (200 mm) above the actuator.
Troubleshooting
Check the wiring for the proper connections.
References
Technical Instructions Document Number
SFA/SFP Electronic Valve Actuator 155-321P25
24 Vac or 120 Vac, 2-Position Control
Zone Valve Assemblies TB254 155-291