Installation Instructions

Document No. 129-229

September 29, 2009

ASC9.3…U Dual Auxiliary Switches

Item Number 129-229, Rev. 300 Page 1 of 3

Product Description

This package contains a dual auxiliary switch and a

black NEC Class I compliant wiring compartment

cover for use on the SKB/C/D8... three-position valve

actuators.

Product Numbers

ASC9.3BCU

ASC9.3DU

Warning/Caution Notations

WARNING

Personal injury/loss of life may

occur if a procedure is not

performed as specified.

CAUTION

Equipment damage, or loss of

data may occur if the user

does not follow procedure as

specified.

Prerequisites

WARNING:

Disconnect power supply to the

actuator before beginning to install

the switch.

Required Tools

 1/8” and 1/4” flat blade screwdrivers

 Phillips screwdriver

Instructions

1. Use a 1/4” flat blade screwdriver to remove the

actuator cover.

2. Remove the upper conduit opening knock-out.

See Figure 1.

3. Feed the wires through the conduit. Attach the

flexible conduit to the actuator.

Figure 1. Step 4.

Figure 2. Step 5.

PAGE 1
Installation Instructions Document No. 129-229 September 29, 2009 ASC9.3…U Dual Auxiliary Switches Product Description This package contains a dual auxiliary switch and a black NEC Class I compliant wiring compartment cover for use on the SKB/C/D8... three-position valve actuators. Product Numbers ASC9.3BCU ASC9.3DU Warning/Caution Notations Personal injury/loss of life may occur if a procedure is not performed as specified.
PAGE 2
Document No. 129-229 Installation Instructions September 29, 2009 Wiring Attach the wires to the terminals. G 3 4 C1 5 3 4 C2 Y1 Y2 21 5 Figure 6. Wiring Diagram. Switch Adjustment EA0419R2 1. Connect the valve stem to the actuator. NOTE: Figure 3. Step 6. 2. Preferably, make the electrical connections to the actuator. Make sure the barrier is in place. 3. Move the actuator either electrically (preferably) or mechanically to the desired stroke position. 4.
PAGE 3
Document No. 129-229 Installation Instructions September 29, 2009 Replacing the Cover References Technical Instructions EA 599-2 SKB/C 3-position Actuator Document Number 155-171P25 EA 599-5 SKD 3-position Actuator 155-181P25 Installation Instructions SKB/C… 129-185 SKD… 129-217 Figure 8. Attaching the cover. Use a Phillips or 1/4” flat blade screwdriver to tighten the black cover onto the actuator. Information in this publication is based on current specifications.