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ManualsBrandsSiemens ManualsControl Valves599 Series 3-Position Electronic Spring Return Valve Actuator (24 VAC)

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Installation Instructions

Document No. 129-217

October 16, 2002

SKD…U Electronic Valve Actuator

Item Number: 129-217-04, Rev. 011 Page 1 of 6

Product Description

The SKD…U actuator requires a 24 Vac supply signal

to control a Flowrite™ 599 Series valve with a 3/4-inch

(20 mm) stroke.

Product Numbers

SKD62U

SKD82.50U

SKD82.51U

Warning/Caution Notations

WARNING:

Personal injury/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 Allen 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

EA0921R1

Not allowed with the

Weather Shield

Not allowed in

any circumstance

Figure 1. Acceptable Mounting Positions.

Using the Weather Shield

The SKD 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 16).

EA0857R1

VENTILATION

OPENINGS

VENTILATION

OPENINGS

Figure 2. Weather Shield Installation Position.

Installation

If you are mounting an actuator on a new valve, begin

with the instructions in Figure 3.

Summary of content (6 pages)

PAGE 1
Installation Instructions Document No. 129-217 October 16, 2002 SKD…U Electronic Valve Actuator Product Description The SKD…U actuator requires a 24 Vac supply signal to control a Flowrite™ 599 Series valve with a 3/4-inch (20 mm) stroke. Mounting Positions Product Numbers SKD62U SKD82.50U SKD82.51U Not allowed with the Weather Shield Personal injury/loss of life may occur if you do not follow a procedure as specified.
PAGE 2
Document No. 129-217 Installation Instructions September 30, 2002 Removing the Actuator from the Valve EA0384R1 5 5 mm Figure 6. NOTE: Hold the stem retainer in place as you tighten it around the valve stem. See Figure 6. EA0134R1 1. Remove the actuator cover. 2. Disconnect the wires and conduit, if installed. 3. Loosen the valve stem retainer using a 5 mm Allen wrench and lower the valve stem into the valve. 4. Loosen the yoke nuts using a 5 mm Allen wrench in the actuator yoke. 5.
PAGE 3
Document Number: 129-217 Installation Instructions September 30, 2002 G (SP) Wiring B1 G Do not use autotransformers. Use earth ground isolating step-down Class 2 transformers. Actuator Power Consumption Actuators Per Class 2 Supply Circuit* (80% of Transformer VA) SKD62U 17 VA 4 SKD82.50U 10 VA 8 SKD82.51U 15 VA 5 * Operating more actuators requires additional transformers or separate 100 VA power supplies. Wiring Diagrams SKD62U SKD82.50U/51U SKD62U G0 G Y M U Z G 0 ... 10V G0 4 ...
PAGE 4
Document No. 129-217 Installation Instructions September 30, 2002 0 0 1 21 CONTROLLER Y2 Y1 CONTROLLER Y2 Y1 0 1 G NEUT G EARTH GROUND ISOLATING CLASS 2 TRANSFORMER FOR 24 Vac POWER EA0745R1 24 Vac NEUT EARTH GROUND ISOLATING CLASS 2 TRANSFORMER FOR 24 Vac POWER 21 EA0746R1 EA0448R2 11 Y2 100% 0% Cm1 G 3 3 Y1 100% 0% c1 4 5 c2 4 5 ASC9.3DU Y2 100% 0% a b c N.O. 11 Cm1 G 3 3 a b c 100% 0% c1 4 5 c2 4 5 ASC9.3DU 1000 ASZ7.3 1000 Figure 13. Spring Return SKD82.51U. ASZ7.
PAGE 5
Document Number: 129-217 Installation Instructions September 30, 2002 Manual Operation Dimensions >3x360∞ << AUTO >> 1 0 EA1080R1 1 << MAN >> 11-1/4 (285) 0 << AUTO >> 0 8-13/16 (224) Figure 14. Manual Override in Manual and Automatic Position. Each complete revolution (360°) is equal to 3/32-inch (2.5 mm) stroke.
PAGE 6
Document No. 129-217 Installation Instructions September 30, 2002 Dimensions, Continued CAUTION: Be careful when removing the knockout. Do not damage the circuit board. 1 0 NOTE: Use the top knockout position when installing the Weather Shield.