Installation Instructions

ManualsBrandsSiemens ManualsControl Valves599 Series Reversible Electronic Spring Return Valve Actuator (24 VAC, 0-10 VDC)

Document No. 129-369

September 26, 2018

SKD62UA Series Electronic Valve Actuator,

Advanced Features

Item Code: 129-369, Rev.BA Page 1 of 6

Product Description

The SKD62UA electronic valve actuator requires a 24

Vac supply and receives a 0 to 10 Vdc or 4 to 20 mA

control signal to proportionally control a valve. These

actuators are designed to work with the Flowrite™ 599

series valves, or other manufacturer's valves with fitted

with the appropriate Universal Valve Retrofit Kit.

Product Numbers

SKD62UA

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.

Required Tools

• 5 mm hex wrench

• Small and medium flat-blade screwdrivers

Expected Installation Time

20 minutes for factory-installed actuator

45 minutes for field replacement of actuator

Prerequisites

WARNING:

If mounting the actuator to a valve

already in line, either close the shut-off

valves in the piping (upstream first,

then downstream) or switch off the

pump to allow the differential and static

pressure in the valve to drop.

Mounting Positions

Figure 1. Acceptable Mounting Positions.

Using the Weather Shield

The SKD62UA must be in the vertical position.

Complete instructions for the mounting of the weather

shield are included with that product.

NOTE: Use the top knockout position when installing

the Weather Shield. See Figure 14.

Figure 2. Weather Shield Installation Position.

Summary of content (6 pages)

PAGE 1
Installation Instructions Document No. 129-369 September 26, 2018 SKD62UA Series Electronic Valve Actuator, Advanced Features Product Description Mounting Positions The SKD62UA electronic valve actuator requires a 24 Vac supply and receives a 0 to 10 Vdc or 4 to 20 mA control signal to proportionally control a valve. These actuators are designed to work with the Flowrite™ 599 series valves, or other manufacturer's valves with fitted with the appropriate Universal Valve Retrofit Kit.
PAGE 2
Document Number: 129-369 Installation Instructions September 26, 2018 Installation If you are mounting an actuator on a new valve, begin with the instructions in Figure 3. 4 Removing the Actuator from the Valve 3 1. Remove the actuator cover. Figure 5. 2. Disconnect the wires and conduit, if installed. 3. Loosen the valve stem retainer using a 5 mm hex wrench and lower the valve stem into the valve. 4. Loosen the yoke nuts in the actuator yoke using a 5 mm hex wrench. 5.
PAGE 3
Document Number: 129-369 Installation Instructions September 26, 2018 Wiring CAUTION: Use care when removing the knockout. Do not damage the circuit board. Actuator SKD62UA Power Consumption Actuators per Class 2 supply circuit* (80% of transformer VA) 17 VA 4 * Operating more actuators requires additional transformers or separate 100 VA power supplies. Do not use autotransformers. Use earth ground isolating step-down Class 2 transformers.
PAGE 4
Document Number: 129-369 Installation Instructions September 26, 2018 Automatic calibration proceeds as follows: • Actuator runs to the 0 stroke position (1) the green LED flashes . • Actuator then runs to the 100% stroke position (2) the green LED flashes. • Measured values are stored in the EPROM.
PAGE 5
Document Number: 129-369 Installation Instructions September 26, 2018 Normally Closed Valve Actuator pressure cylinder moves: • Outward 0 (to 1): Valve opens. • Inward (1 to 0): Valve closes. Normally Open Valve Actuator pressure cylinder moves: • Outward (0 to 1): Valve closes. • Inward (1 to 0): Valve opens. Three-Way Valve Actuator pressure cylinder moves: Figure 12. Valve Stem Travel Indication. • Outward: Valve opens between port NC and C. • Inward: Valve opens between ports NO and C.
PAGE 6
Document Number: 129-369 Installation Instructions September 26, 2018 Dimensions, Continued CAUTION: Use care when removing the knockout. Do not damage the circuit board. NOTE: Use the top knockout position when installing the Weather Shield. SERVICE ENVELOPE MINIMUM ACCESS SPACE RECOMMENDED 4 inches (100 mm) 8 inches (200 mm) Figure 14. SKD62UA Dimensions in Inches (Millimeters). Information in this publication is based on current specifications.