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Flowrite™ 599 Series
SAX Electronic Valve Actuator
Non-spring Return, 24 Vac,
3-Position Control
Description
Features
Application
Product Number
Product
Replacements
Stroke Actuators SQX...
to SAX...
SQX..
SQX82..
SQX82.00U
SQX82.03U
The Flowrite™ 599 Series SAX Non-spring Return (NSR), Electronic Valve Actuator
requires a 24 Vac supply and receives a 3-position control signal to control a valve.
This actuator is designed to work with Flowrite 599 Series 2-way and 3-way valves with
3/4-inch (20 mm) stroke.
•
24 Vac/Vdc operating voltage
•
Direct-coupled installation requires no special tools or adjustments
•
Visual stroke indication
•
Manual override
•
Overload and stall protection
•
Optional functions with auxiliary switches, potentiometer, and stem heater
•
Maintenance-free
These electronic actuators are designed to be used with Flowrite 599 Series valves
with 3/4-inch (20 mm) stroke in hot and chilled water and steam service applications in
closed loop HVAC systems. They are particularly recommended for installations
requiring quick response and good rangeability.
SAX81.03U (Actuator Code 373)
Replacement of SQX Series Actuators by SAX Series Actuators.
NOTE:
• When replacing actuators consider positioning force, and positioning times.
• Adjust the controller parameter "Running time" or "Positioning time", to ensure
stable control.
Pos. Time [s]
Pos. Force [N]
120
30
Technical Instructions
Document No. 155-507
SAX..
700
SAX81.03U
700
April 5, 2012
Pos. Time [s] Pos. force [N]
30
800
Siemens Industry, Inc.
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Table of Contents
Related Manuals for Siemens SQX82 Series
Summary of Contents for Siemens SQX82 Series
- Page 1 Stroke Actuators SQX… to SAX… • Adjust the controller parameter "Running time" or "Positioning time", to ensure stable control. SQX.. SAX.. Pos. Time [s] Pos. Force [N] Pos. Time [s] Pos. force [N] SQX82.. SQX82.00U SAX81.03U SQX82.03U Siemens Industry, Inc.
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Page 2: Specifications
As per EMC directive 2004/108/EC Immunity EN 61000-6-2:[2005] Industrial Emissions EN 61000-6-3:[2007] Residential Electrical safety EN 60730-1 C-tick N 474 UL conformity (24 Vac/Vdc) UL 873 C-UL conformity (24 Vac/Vdc) Certified to Canadian standard C22.2 No. 24-93 Siemens Industry, Inc. Page 2... - Page 3 32°F (0°C). It is suited for universal use with valves having a stem or spindle diameter of 10 or 14 mm. Weather shield ASK39.1 Weather Shield ASK39.1 protects the actuator when installed outdoors. Provides NEMA 3R protection. Siemens Industry, Inc. Page 3...
-
Page 4: Operation
Calculated Actual Positioning Positioning signals No power position position time [ms] (power applied) applied Accurate position feedback is made possible with the help of a potentiometer. Figure 1. Three-position (Floating) Actuator Deviation. Siemens Industry, Inc. Page 4... - Page 5 When in this mode, do not turn the manual adjuster. Disengaging the setting When the black slide switch is pushed back in, and the manual adjuster is not pressed down, the manual adjuster returns to Automatic Mode. Siemens Industry, Inc. Page 5...
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Page 6: Mounting And Installation
Determine supply transformer rating by summing total VA of all actuators used. The maximum rating for Class 2 step-down transformer is 100 VA. It is recommended that no more than 10 actuators are powered by one transformer. Siemens Industry, Inc. Page 6... -
Page 7: Wiring Diagrams
24 Vac/Vdc, 3-Position Wiring Terminals System potential (SP) Positioning signal (actuator’s stem extends) Positioning signal (actuator’s stem retracts) Check that the wires are connected correctly and attached securely. Troubleshooting Check for adequate power supply. Siemens Industry, Inc. Page 7... - Page 8 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. Flowrite is a registered trademark of Siemens Industry, Inc. Other product or company names mentioned herein may be the trademarks of their respective owners.