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ManualsBrandsSiemens ManualsShort Stroke (BC3)599 Series Zone Valve Bodies: Two-Way and Three-Way Technical Instructions

599 Series Zone Valve

Technical Instructions

Document No. 155-780

May 19, 2017

Way, 3

Way Zone Valve

Thermic Actuators

Siemens Industry, Inc.

Description

24 Vac/Vdc Zone Valve Thermic Actuator with a maximum stroke of 0.18-inch (4.5 mm).

Features

• AC/DC two-position control or PWM control

• 270° visible position indication

• Robust, no maintenance required

• Friction-free

• Two-wire connection

• 3.3-foot (1 m) connecting cable

• NEMA 3 (IP54)

Application

For use with Siemens Industry, Inc.'s 1/10-inch (2.5 mm) stroke Zone valves.

Product Numbers

Table 1.

Product

Numbers

Voltage

Cable Length

Feet (Meters)

Action

STA73U

24 Vac/Vdc

3.3

(1.0)

Normally Closed

STP73U Normally Open

Warning/Caution Notations

WARNING:

Personal injury/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.

Ordering

The actuator and valve body can be ordered as separate items or as an assembly.

State the quantity, product number, and description.

Example: 1 STA73U Thermic actuator with 3.3-foot (1.0 m) cable.

Summary of content (6 pages)

PAGE 1
Technical Instructions Document No. 155-780 May 19, 2017 599 Series Zone Valve 2-Way, 3-Way Zone Valve Thermic Actuators Description 24 Vac/Vdc Zone Valve Thermic Actuator with a maximum stroke of 0.18-inch (4.5 mm). Features • • • • • • • Application AC/DC two-position control or PWM control 270° visible position indication Robust, no maintenance required Friction-free Two-wire connection 3.3-foot (1 m) connecting cable NEMA 3 (IP54) For use with Siemens Industry, Inc.'s 1/10-inch (2.
PAGE 2
Technical Instructions Document Number 155-780 May 19, 2017 599 Series Zone Valve 2-way, 3-way Thermic Actuators Specifications Supply voltage Power Supply Power consumption Switch-on current (transient) Primary fuse Control Signal 24 Vac, 50 to 60 Hz or 24 Vdc Maximum voltage tolerance ±20% Normal operation 2.
PAGE 3
599 Series Zone Valve 2-way, 3-way Thermic Actuators Technical Instructions Document Number 155-780 May 19, 2017 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 STA73U Actuator) for new or replacement applications.
PAGE 4
Technical Instructions Document Number 155-780 May 19, 2017 599 Series Zone Valve 2-way, 3-way Thermic Actuators Opening and Closing Times Figure 3. Opening and Closing Times. Mounting and Installation Notes When the STA73U or STP73U Actuators are supplied separately from the valve, they can be assembled with just a few steps: 1. Remove the black actuator support ring (AL50) from the top of the valve. Discard the ring; it is no longer needed. 2.
PAGE 5
99 Series Zone Valve 2-way, 3-way Thermic Actuators Mounting and Installation Notes, Continued Technical Instructions Document Number 155-780 May 19, 2017 1. Disconnect the connection cable. 2. Wait six minutes until the actuator is cooled down. 3. Turn the actuator bayonet ring counter-clockwise for two clicks, to the end position. 4. Lift the actuator off the valve. When dismounted, the actuator will be set automatically to the original position (factory setting).
PAGE 6
Technical Instructions Document Number 155-780 May 19, 2017 599 Series Zone Valve 2-way, 3-way Thermic Actuators Dimensions STA73U STP73U Figure 5. 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. © 2017 Siemens Industry, Inc.