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
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 high
voltages capable of cau si n g shock , burns, or death .
WARNINGisusedinthismanualtowarn
of possible personal injury.
CAUTIONisusedinthismanualtowarn
of possible equipment damage.
An exp erienced licensed electric ian must install the AT S.
100–230 ampere sizes
Refer to the outline and wiring drawings provided with
your ASCO Series 185 ATS for all installation 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 acc or dan c e with
the National Electrical Code, NEC/NFPA 70, Article 702.
This ATS is for use with 2–w ir e automatic–star t genera tor s
only.
Refer to Appl ication Information 381339–292 to confirm
that you have selec ted the appropr iate produc t for the
intend ed instal l atio n .
This automatic transfer switch i s 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 irements con tac t
A SCO Power Technol og ies for other products suitable 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 lab el on the transfer switc h 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.................................
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