Installation Instructions
Document No. 129-571
June 21, 2022
SAV Electronic Valve Actuator
Product Description Prerequisites
The SAV Electronic Valve Actuator requires a 24 Vdc WARNING:
or 24 Vac, Class 2, supply signal to control a Siemens If mounting the actuator to a valve already
flanged, Pressure Independent Control valve with a in line, either close the shut-off valves in
1-1/2-inch (40 mm) standard stroke. the piping (upstream first, then
downstream) or switch off the pump to
Product Number allow the differential pressure in the valve
to drop.
SAV61.00U Proportional Control Actuator
Mounting Positions
Warning/Caution Notations
WARNING: Personal injury or loss of life
may occur if you do not
follow a procedure as
specified.
CAUTION: Equipment damage or loss
of data may occur if you do
not follow a procedure as
specified.
CAUTION: Figure 1. Acceptable Indoor Mounting Positions.
SAV Actuators can only be used for hot or
chilled water installations.
Required Tools
• 4 mm hex wrench, or 10 mm wrench
• Flat-blade screwdriver or Phillips screwdriver
to remove wiring compartment cover
Expected Installation Time
30 minutes Wiring a factory-installed actuator Figure 2. Acceptable Outdoor Mounting Positions with
45 minutes Field replacement of actuator Weather Shield for NEMA 3R Protection.
Item Number: 129-571, Rev. CA Page 1 of 8
Document No. 129-571
Installation Instructions
June 21, 2022
A Manual adjuster (with slide switch)
B Wiring knockouts
C Position indication
D Status indication
E Housing cover
F Valve stem coupling
G Yoke
H Bonnet connection U-bracket
Installation 3. Pull the valve stem to the fully extended position.
CAUTION:
Then, slide the actuator on the valve bonnet. See
Do not damage or scratch the polished Figure 5.
surface of the valve stem.
Mounting an Actuator to a Valve
1. Ensure stem connection plate in the Valve Stem
Coupling is in the OPEN position. See Figure 3.
Figure 5.
4. Completely close the bonnet connection U-
Figure 3. bracket. See Figure 6.
2. Open the bonnet connection U-bracket. See
Figure 4.
Figure 4. Figure 6.
Page 2 of 8 Siemens Industry, Inc.
Document No. 129-571
Installation Instructions
June 21, 2022
NOTE: Position the actuator to accommodate the 8. Secure the stem connection plate by tightening the
wiring. Hold the actuator in place while bolt, using a 10 mm wrench (or 4 mm hex
tightening the actuator U-bracket bolt. wrench). See Figure 10.
5. Tighten the U-bracket bolt using a 10 mm wrench
(or 4 mm hex wrench) to 5 Nm (44 in-lbs) torque.
See Figure 7.
Figure 10.
The mounting is now complete.
Figure 7.
6. Rotate the manual adjuster clockwise to manually
extend the actuator shaft until it covers the head of Removing the actuator from a valve
the valve stem See Figure 8.
1. Loosen the stem connection plate in the Valve
Stem Coupling by loosening the bolt, using a
10 mm wrench (or 4 mm hex wrench).
2. Open the stem connection plate over the valve
stem.
3. Manually retract the actuator shaft by turning the
Manual Adjuster counterclockwise until it reveals
the head of the valve stem.
Figure 8. 4. Loosen the U-bracket using a 10 mm wrench (or
4 mm hex wrench).
7. Close the stem connection plate securely over the
valve stem. See Figure 9. 5. Completely open the bonnet connection
U-bracket.
6. Push the valve stem to the fully retracted position.
Then, slide the actuator off the valve bonnet.
7. Remove the actuator from the valve, being careful
not to damage the valve stem.
8. Close the bonnet connection U-bracket.
Figure 9.
CAUTION:
Do not rotate the actuator on the valve once the
actuator and valve stem are connected. Doing so
will inadvertently adjust the flow setting of the
valve.
Siemens Industry, Inc. Page 3 of 8
Document No. 129-571
Installation Instructions
June 21, 2022
A Plug-in space for Auxiliary switch ASC10.51.
B Plug-in space for…
− Function module AZX61.1 or
− Auxiliary switch ASC10.51
C LED
D DIP Switches
E Calibration Slot
F Connection Terminals
Figure 11. SAV Actuator with Cover
Removed.
Wiring DIP Switch Setting
NOTE: All wiring must conform to national and local Switch 1: Control Signal
codes and regulations (NEC, CE, and so on).
Select between 0 to 10 Vdc or 4 to 20 mA input signal
Do not use autotransformers. Use earth ground for terminal Y (0 to 10 Vdc default).
isolating step-down Class 2 power supply
transformers. Switch 2: Flow Characteristic
Determine supply transformer rating by summing total Do not change the flow characteristic switch from the
VA of all actuators used. The maximum rating for a default setting.
Class 2 step-down transformer is 100 VA.
NOTE: Changing the default setting will modify the
It is recommended that no more than 10 actuators are linear flow characteristic to: fast opening flow
powered by one transformer. characteristic
Parallel Control of Actuators Table 1. DIP Switch Settings.
Up to 10 actuators can be driven in parallel from a Position Positioning Position Flow Characteristic
single controller output with a rating of 1 mA. Signal Feedback
Modulating actuators have an input impedance of "Y" "U"
100KΩ.
OFF 1)
0 to 10 0 to 10 Default =
NOTE: Use either a Phillips head screwdriver or a flat- Linear
blade screwdriver to remove the wiring Vdc Vdc
compartment housing cover for access to the
terminal block and DIP switches. ON Modified =
DC 4 to 0 to 10 Fast
20 mA Vdc Opening
1) Factory setting: All DIP switches are set to OFF.
Page 4 of 8 Siemens Industry, Inc.
Document No. 129-571
Installation Instructions
June 21, 2022
Wiring Wiring Diagrams
Figure 12. Connecting Terminals.
Accessories
G0 System Neutral (SN) A and/or B
G System Potential (SP) 1x ASC10.51 1x ASC10.51
Y Positioning signal for 0 to 10 Vdc/4 to 20 mA Auxiliary Switch Auxiliary Switch
M Measuring neutral
U Position feedback 0 to 10 Vdc
Z Positioning signal forced control
Figure 13. Applications.
The wiring diagrams show all possible connections.
The application determines which connections are
used. A and B are optional auxiliary switches.
Siemens Industry, Inc. Page 5 of 8
Document No. 129-571
Installation Instructions
June 21, 2022
Manual Override Commissioning and Operation
Manual operation Function Check and Calibration
When pushing the manual adjuster down (1), it Mechanical Check
engages and the actuator can be manually operated.
When turning the manual adjuster in a Prior to making the function check, ensure that:
clockwise/counterclockwise direction (2), the actuator’s
stem extends/retracts. See Figure 14. • Actuator is mechanically connected to a Siemens
valve.
An overload protection prevents damage to the
manual adjuster. • Actuator is in Manual Operation mode.
The actuator can be operated with the help of the
Manual Adjuster.
Manual Adjuster
Actuator Response
Action
Turning in clockwise Actuator’s stem
direction extends
Turning in counter- Actuator’s stem
Figure 14. clockwise direction retracts
Setting the position NOTE: Ensure that the actuator’s and valve’s stems
Upon actuation and locking the slide switch (see are securely connected in all positions.
Figure 15), the manual adjuster remains engaged. If the actuator is forced to travel beyond its
When in this mode, do not turn the manual adjuster. end positions, overload protection responds.
Electrical Check
Prior to making the function check, ensure that:
• Actuator is mechanically connected to a Siemens
valve.
• Actuator is in Automatic Operation mode.
• Actuator and, if required, accessories are correctly
fitted and connected.
Figure 15.
• Power is applied.
Disengaging the setting
Calibration
When resetting the slide switch (see Figure 16), the
Calibration is required with modulating actuators, and
manual adjuster returns to Automatic Mode.
before the function check.
NOTE: Calibration must be performed manually.
Prior to calibrating, ensure that:
• Actuator is properly connected to a valve.
• Housing cover is removed.
• Power is applied.
Figure 16.
If required, calibration can be repeated any number of
times.
Page 6 of 8 Siemens Industry, Inc.
Document No. 129-571
Installation Instructions
June 21, 2022
To initiate the calibration process insert a flat-blade Table 2. LED Indication and Status.
screwdriver into the calibration slot to short out the two
Remarks,
sides of the slot. See Figure 17. LED Indication Operating state
troubleshooting
On Automatic mode Normal operation
Wait until calibration is
Green Calibration finished
Blinking (then green or red light)
Manual adjuster in
In manual mode
MAN position
On Calibration error Start calibration again
Red Detection of
Blinking Check valve / actuator
foreign object
No power or Check operating
Figure 17. Step 1—Bridge contact. Off Off
electronics faulty voltage
During calibration, the actuator detects the valve’s end
positions and files the exact stroke in its internal If the actuator does not detect the second end position
within an appropriate stroke range (max. 25 mm), the
memory. Calibration takes place in three phases:
first end stop will be adopted, and the actuator
operates with a working range of 20 mm.
Function Check
Perform the function check for modulating actuators
after calibration with a point test according to the
following table:
• Actuator drives to H0 (1), retracting actuator stem.
Table 3. Modulating Function Check.
Detection of upper end position.
• Actuator drives to H100 (2), extending actuator Position
Connection Actuator
stem. Detection of lower end position. Feedback
Terminals Response
(U)
• The detected values are stored (3). Then the
actuator follows the applied control signal. 6V Actuator’s stem
Y 6V
Observe the status indication (LED) during and after 13.6 mA extends (60%)
calibration. See Figure 18 and Table 2.
5V Actuator’s stem
Y 5V
12 mA retracts (50%)
“Z” connected to Actuator’s stem
10V
“G” extends to 100%
“Z” connected to Actuator’s stem
0V
“G0” retracts to 0%
After successful completion of the function check, the
actuator is ready for normal operation.
Figure 18. Step 2—Check LED.
Siemens Industry, Inc. Page 7 of 8
Document No. 129-571
Installation Instructions
June 21, 2022
References
Technical Instructions:
155-547
SAV Electronic Valve Actuator
Non-Spring Return, 24 Vac/dc, Proportional Control
Dimensions
Product Weight
A B C C1 C2 D E ► ►►
Number lbs (kg)
SAV61.00U 10.43 4.88 5.91 2.68 3.23 3.15 3.94 3.94 7.87 4.23
(265) (124) (150) (68) (82) (80) (100) (100) (200) (1.92)
With ASK39.1 11.42 6.06 11.81 7.87 3.94 4.74
– – – –
(290) (154) (300) (200) (100) (2.15)
Figure 19. SAV Dimensions in Inches (Millimeters).
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. © 2022
Siemens Industry, Inc.
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