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381333–309
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
telephone 519 758–8450, fax 519 758–0876, for service call 1 888 234–2726 (ASCO) www.asco.ca
Operator’s
Manual
7000 Seri es 7ADT B
Automatic Delayed–Transition Transfer
& Bypass–Isolation Switches
J d es ig n 150 t hro ug h 600 a mp .
DANGER is used in this manual to warn of high
voltages capable of c ausi n g sh oc k , bu r ns, or death .
WARNINGisusedinthismanualtowarn
of possible personal injury.
CAUTIONisusedinthismanualtowarn
of possible equipment damage.
Refer to the outline and wiring dra wings provided
with your 7000 Series ADTB for all installation and
connection details and accessories.
Refer to Group 5 Controller User’s Guide 381333–126
for ATS status display messages, time delays, pickup
& dropout settings, and adjustments.
An experienced licensed electrician must install the
7ADTB.
Rating Label
Each 7000 Series 7ADTB contains a rating label to
def in e t h e lo ad and fau lt circ u it with st an d /c losin g
ratings. Refer to the label o n the Tr ansfer Swi tch for
spec ific values.
Do not exceed the values on the rating label.
Exceeding the rating can cause personal injury
or serious equipment damage.
TABLE OF CONTENTS
section-page
INSTALLATION
Mounting 1-1.............................
Power Connections 1-1....................
Engine Starting & Auxiliary Circuits 1-2......
Functional Test 1-2, 1-3, 1-4.................
TESTING & SERVICE
Transfer Test 2-1..........................
Preventive Maintenance 2-1................
Disconnecting the Controller 2-1............
Manual Load Transfer 2-2..................
Trouble-Shooting 2-2......................
BYPASSING & ISOLATING
Bypassing the ATS 3-1, 3-2.................
Isolating the ATS 3-3, 3-4...................
Return to Service 3-5, 3-6, 3-7...............
INDEX back cover.........................