599 Series Zone Valve Actuator Technical Instructions Document No. 155-321P25 October 21, 2020 SF Series Electronic Valve Actuator, 2-position Control Siemens Industry, Inc. Description The 599 SF Series electronic zone valve actuators, accepts 24 Vac or 120 Vac power supply signal to provide two-position control. This actuator works with Siemens 599 Series zone valves with 1/10-inch (2.5 mm) stroke. Features • UL listed for plenum installations • Direct coupled installation without tools • Manual override • Visual position indication • Spring return fail-safe operation Application For use in heating and cooling HVAC applications with Siemens 599 Series Zone Valves that need 24 lb (105N) nominal force. Product Number Table 1. Actuator Product Number Power Supply NO SFP71U 24 Vac SFP11U 120 Vac NC SFA71U 24 Vac SFA11U 120 Vac * Actuator with 2.5-meter cable only; not available as an assembly. Ordering Information To order a complete valve plus actuator assembly from the factory, combine the actuator prefix code with the suffix of the valve product number. See Technical Bulletin TB254 (155-291) for selection procedures. To order a single actuator, use the part number (for example, SFA11U). Technical Instructions 599 Series Zone Valve Actuator Document No. 155-321P25 SF Series Electronic Valve Actuator October 21, 2020 2-position Control Page 2 Siemens Industry, Inc. Warning/Caution Notations WARNING: Personal injury or loss of life may occur if you do not perform a procedure as specified. CAUTION: Equipment damage may occur if you do not perform a procedure as specified. Specifications Power supply 24 Vac 120 Vac Frequency 50/60 Hz 60 Hz Power consumption 9.8 VA 9.8 VA 5.8 ~ 6.9 W 4 ~ 5.8 W Function Running time 10 seconds Nominal stroke 1/10-inch (2.5 mm) Nominal force 24 lb (105Nm) Agency certification UL listed to UL873 cUL certified to Canadian Standard C22.2 No. 24-93 Ambient conditions Operation Temperature 41°F to 122°F (5°C to 50°C) Humidity 0% to 90% rh (non-condensing) Transport and storage Temperature –13°F to 158°F (–25°C to 70°C) Humidity 0% to 90% rh (non-condensing) Miscellaneous Mounting location NEMA 1 (interior only) Noise <35 db Medium temperature 34°F to 230°F (1°C to 110°C) Dimensions- Inches (mm) 3.4 (85.2) H × 4.4 (111) W × 2.3 (58) D Weight 1.18 lb (0.54 kg) Operation A 24 Vac or 120 Vac control signal drives the actuator from its normal (0 voltage) position. In the event of power loss, the actuator will return to its normal extended position for the SFA model actuators or normal retracted position for the SFP models. CAUTION: When selecting a heating or cooling on/off zone valve that must be closed for long periods of time or an entire season, use a Normally Closed actuator (such as the SFA71U Actuator) for new or replacement applications. If the valve needs to be open for extended periods of time or an entire season, use a Normally Open actuator (such as the SFP71U Actuator) for new or replacement applications. SFP Actuators should not be used on hot water systems that remain operational all year long or where actuators are continually commanded closed during the summer. 599 Series Zone Valve Actuator Technical Instructions SF Series Electronic Valve Actuator Document No. 155-321P25 2-position Control October 21, 2020 Siemens Industry, Inc. Page 3 Mounting and Installation Figure 1. Mounting Position. • Mount the actuator in one of the allowable positions shown in Figure 1. • When mounting the actuator in a plenum, the proper cable must be attached to meet local codes. • Allow 8 inches (200 mm) above the actuator and 8 inches (200 mm) behind the cable for service. • Installation Instructions are included with the actuator. Wiring Figure 2. 24 Vac Wiring Diagram. Figure 3. 120 Vac Wring Diagram. WARNING: Wire connection, G is Hot, not ground. • Do not use autotransformers. • Use earth-ground isolating, step-down, Class 2, power supplies. • Determine supply transformer rating by summing total VA of all actuators used. • SFA71U/SFP71U 24 Vac actuators: Wiring connection is inside the actuator housing (remove housing top for access). The actuator lead length is 10 inches (254 mm). • SFA11U/SFP11U 120 Vac actuators: Wiring connection requires junction box and flex conduit no further than 15 inches (381 mm) from the actuator. The actuator lead length is 18 inches (457 mm). NOTE: One transformer should power no more than 10 actuators. Technical Instructions 599 Series Zone Valve Actuator Document No. 155-321P25 SF Series Electronic Valve Actuator October 21, 2020 2-position Control Page 4 Siemens Industry, Inc. Manual Override For manual positioning, simply turn the manual override handle to the protruding stop and squeeze the handle to latch and hold its position. The actuator will maintain its position until power is provided. Figure 4. Manual Override Handle Positioning. Start-Up Check the wiring and the position indication. When the position indicator is in the 0 position: SFP: The output shaft will be retracted; the actuator is Normally Open. See Figure 5. SFA: The output shaft will be extended; the actuator is Normally Closed. See Figure 6. When the position indicator is in the 1 position, the reverse is true. (A) Allow handle to turn counterclockwise to retract spindle. (B) Turn handle clockwise to extend spindle. Figure 5. SFP Models, Normally Open. (A) Allow handle to turn counterclockwise to extend spindle. (B) Turn handle clockwise to retract spindle. Figure 6. SFA Models, Normally Closed. NOTE: The 0 and 1 position indicators are intended for reference only, and not for stroke measurement. CAUTION: Avoid damage to actuator; DO NOT manually assist spring return. 599 Series Zone Valve Actuator Technical Instructions SF Series Electronic Valve Actuator Document No. 155-321P25 2-position Control October 21, 2020 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. © 2020 Siemens Industry, Inc. Siemens Industry, Inc. Smart Infrastructure 1000 Deerfield Parkway Buffalo Grove, IL 60089 USA + 1 847-215-1000 Your feedback is important to us. If you have comments about this document, please send them to sbt_technical.editor.us.sbt@siemens.com Document No. 155-321P25 Printed in the USA Page 5 Troubleshooting See Wiring for proper connections. Service Kits If the actuator is inoperative, replace the unit. Dimensions Inches (Millimeters) Figure 7. Dimensions of the SFx Series Actuator. Service Envelope Minimum access space recommended: 8 inches (200 mm) above the actuator and beside the terminal plug. Next >