User Guide

ManualsBrandsEmerson ManualsOther185

381333–319 E

50 Hanover Road, Florham Park, New Jersey 07932–1591 USA

For sales or service call 1 800 800–2726 (ASCO) www.ascopower.com

ASCO POWER TECHNOLOGIES CANADA PO Box 1238, 17 Airport Road, Brantford, Ontario, Canada N3T 5T3

Operator’s

Manual

Seri es 185

Automatic Transfer Switches

100 t hrou gh 400 am pe re size s

DANGER is used in this manual to warn of a

hazard situation which, if not avoided, will result in

death or serious injury.

WARNING is used in this manual to w arn of a

hazardous situation which, if not avoided, could

result in death or serious injury.

CAUTION is used in this m anual to warn of a

hazardous situation which, if not avoided, could

result in minor or moderate injury.

An ex perienc ed licensed electrician mu st inst all the ATS .

100–230 ampere sizes

Refer to the outline and wiri ng drawings provide d with

your ASCO Series 185 ATS for all i nstallation details.

A SCO Series 185 A utomatic Transfer Switches (ATSs) are

Listed under Underwriter’s Laboratories Standard for

Transfer Switch Equipment, UL–1008. They are intended

for use only in optional standby system s in acco rdan c e with

the National Electrical Code, NEC/NFPA 70, Article 702.

This ATS is for use with 2–w ir e automatic–s tar t gen er ato rs

only.

Refer to Application Information 381339–292 to confirm

that you have selec ted the appropriate produc t for the

intend ed instal l atio n .

This automatic transfer switch is intended for standby

power applications in residential / light commercial use

only.

This product is not intended for emergency

or life–support systems.

If you have mor e strin g e nt application requ ire m en ts contac t

A SCO Power Technol og ies for other produc ts suitabl e for

cr itic al appl ications.

Rating Label

Eac h autom atic transfer switc h contains a rating lab el to

define the loads and fault circuit withstand / closing ratings.

Refer to the label on the transfer switch for specific values .

Do not exceed the values on the rating label.

Exceeding the rating can cause person injury or

serious equipment damage.

TABLE OF CONTENTS

page

INSTALLATION 1..........................

CONTROLLER 2–5........................

FUNCTIONAL TEST 6......................

SEQUENCE OF OPERATION 7.............

TROUBLESHOOTING 8–9..................

INDEX 10.................................

Summary of content (12 pages)

PAGE 1
Operator’s Manual Series 185 Automatic Transfer Switches 100 through 400 ampere sizes DANGER is used in this manual to warn of a hazard situation which, if not avoided, will result in death or serious injury. WARNING is used in this manual to warn of a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION is used in this manual to warn of a hazardous situation which, if not avoided, could result in minor or moderate injury.
PAGE 2
Series 185 Catalog Number Identification Nameplate The Transfer Switch nameplate includes data for each specific ASCO Series 185 ATS. Use the ATS only within the limits shown on this nameplate. D 185 Neutral A – standard A Phase Poles 2 – single Ø clock battery 2 A typical Catalog Number is shown below with its elements explained.
PAGE 3
INSTALLATION Installation of the ASCO Series 185 automatic transfer switch (ATS) must be performed by a licensed electrician. It must be installed according to the National Electrical Code (NEC) and all local electrical code requirements. Remove the enclosure cover and inspect the ATS for shipping damage. If damage is evident do not install the ATS. 1 --- Mounting Refer to the enclosure outline drawing. Mount the ATS according to details and instructions shown on this diagram.
PAGE 4
CONTROLLER Series 185 1 --- Push Buttons The Group 4 digital Controller is used in ASCO Series 185 automatic transfer switches. It provides the sensing, timing, and control functions for the ATS. This micro– processor–based controller includes built–in control buttons and status lights for control of the ATS and generator. On the front control display are three push buttons that control the operation of the generator and the ATS.
PAGE 5
CONTROLLER (continued) Series 185 3 --- Generator Starting Contacts 5 --- Automatic Generator Exerciser The generator starting contacts connections are on the controller. Refer to the generator manual. Disconnect the generator battery and verify that the ignition switch is in the OFF position. Connect the generator starting wires to the appropriate terminals on terminal block TB7 as shown on the wiring diagram. For wiring convenience terminal block TB7 has a removable plug. See Figure 4 and Table A.
PAGE 6
CONTROLLER (continued) Series 185 S1 DIP switch S3 DIP switch S2 DIP switch Figure 6. DIP switches S1 and S2 at the top right. The time delay settings are shown in Figures 6 and 7 and in Table C. The sensor settings are shown in Figure 6 and in Table D. The standard (factory) settings are shown in Tables C, D, and H. Figure 7. DIP switch S3 at the bottom center. Table C.
PAGE 7
CONTROLLER (continued) 7 --- Factory Settings --- Summary 6 --- Remote Control & Load Disconnect Table H. Factory Settings – Summary These remote control features require a customer– supplied normally–closed contact suitable for a 5 V dc low energy circuit. Refer to the wiring diagram provided with the ATS. Activate the appropriate DIP switch S3 actuators as shown in Tables E, F, or G. See Figure 7.
PAGE 8
Series 185 FUNCTIONAL TEST After installing the Series 185 automatic transfer switch (ATS) perform the following three–part functional test. maintenance handle With ALL POWER OFF grasp maintenance handle and turn it quickly with your thumb and fingers. 1 --- Manual Operation A handle is provided on the transfer switch for maintenance purposes only. Manual operation of the transfer switch should be checked before it is energized (operated electrically).
PAGE 9
Sequence of Operation --- Utility Failure Series 185 light is on light is off ¡ generator stops Utility power good. Electrical loads on utility generator runs unloaded for 2 min. utility acceptable Utility fails (longer than 3 sec.) load on utility ¥ electrical loads switched back to utility © utility acceptable generator off load on utility wait 5 min.
PAGE 10
TROUBLESHOOTING Series 185 This troubleshooting guide describes some of the simple causes of problems with the installation of the automatic transfer switch. Troubleshooting beyond the scope of this guide should not be attempted by the installer. A licensed electrician must perform all internal troubleshooting. ASCO Power Technologies can be contacted at: 1–800–800–2726 or customercare@asco.com Problem The Utility Acceptable light 1. does not come on when utility 2. power is connected to the ATS.
PAGE 11
TROUBLESHOOTING (continued) Series 185 Problem The ATS does not immediately 1. transfer the load to the generator. 2. Cause and Solution Verify that the Generator Acceptable light is on. If it is off, see previous troubleshooting problem. The ATS will not transfer the load to an unacceptable source. 3. 1. Press the Bypass Time Delay button for immediate load transfer to the generator. The generator may be overloaded. Check to see if the generator circuit breaker tripped.
PAGE 12
INDEX Series 185 A H Automatic Generator Exerciser, 2, 3, 9 handle, maintenance, 6 warning, 6 harness, inside cover B HELP 800–800–2726 (ASCO) customercare@asco.