Emerson ASCO 185 - Manual

381333–319 D 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
Series 185
Automatic Transfer Switches
100 through 400 ampere sizes
DANGER is used in this manual to warn of high
voltages capable of causing shock, burns, or death.
WARNING is used in this manual to warn
of possible personal injury.
CAUTION is used in this manual to warn
of possible equipment damage.
An experienced licensed electrician must install the ATS.
100–230 ampere sizes
Refer to the outline and wiring drawings provided with
your ASCO Series 185 ATS for all installation details.
ASCO Series 185 Automatic 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 systems in accordance with
the National Electrical Code, NEC/NFPA 70, Article 702.
This ATS is for use with 2–wire automatic–start generators
only.
Refer to Application Information 381339–292 to confirm
that you have selected the appropriate product for the
intended installation.
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 more stringent application requirements contact
ASCO Power Technologies for other products suitable for
critical applications.
Rating Label
Each automatic transfer switch contains a rating label 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 personal
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .