Siemens Flowrite 599 Series Owner's manual
599 Series
Zone Valve Actuator
Technical Instructions
Document No. 155-321P25
August 8, 2017
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
August 8, 2017 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
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 August 8, 2017
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
August 8, 2017 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 0position:
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 1position, 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 0and 1position
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 August 8, 2017
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.
© 2017 Siemens Industry, Inc.
Siemens Industry, Inc.
Building Technologies Division
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, pleasesend 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.
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