Emerson ASCO 185 Series User Manual Download

Page: 1 / 12

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

. . . . . . . . . . . . . . . . . . . . . . . . . .

CONTROLLER

2–5

. . . . . . . . . . . . . . . . . . . . . . . .

FUNCTIONAL TEST

. . . . . . . . . . . . . . . . . . . . . .

SEQUENCE OF OPERATION

. . . . . . . . . . . . .

TROUBLESHOOTING

8–9

. . . . . . . . . . . . . . . . . .

INDEX

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Summary of Contents for ASCO 185 Series

Page 1: ... 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 resi...

Page 2: ... 200 F 4 C Phase Poles Neutral Amperes Voltage Controller Enclosure A standard 4 standard C Type 1 M Type 3R 2 single Ø F 220 240 260 230 100 200 4X if accessories ordered 400 Transfer Switch Controller emergency power connections membrane controls 200 ampere size in typical enclosure with location of customer connections terminals for optional switch position contacts shown installed load power c...

Page 3: ...nsfer switch See Figure 1 FLASH HAZARD DAMAGE Be sure that the insulator piece is installed behind the 260 and 400 ampere transfer switches insulator backing piece Figure 1 Insulator for 260 and 400 A 2 Electrical Power Connections Refer to the wiring diagram The ATS must be protected by suitably sized circuit breakers feeding the utility and generator source terminals The rating of the circuit br...

Page 4: ...s operation starts the generator and transfers the load Be sure that conditions are safe to do this operation Bypass Time Delay Use this button to cancel the active time delay or exercise period stops the generator after cooldown Set Engine Exerciser Use this button to set the automatic generator exerciser page 3 2 Indicator Lights On the front control display are five lights that indicate the sta...

Page 5: ...once every week Clock Battery Be sure a fresh battery is installed and turned on It will maintain the exerciser clock for about 24 hours in case of a power outage Recommended 9 volt alkaline batteries are see Figure 5 Duracell MN 1404 Everready 522 Panasonic 6AM6 Turn on battery by putting S2 DIP switch actuator 10 in the on position up See Table B and Figure 6 Exercise with or without Load The ge...

Page 6: ...unloaded running 2 minutes 2 minutes S1 10 on up unloaded running generator cooldown 2 minutes 5 minutes S1 10 off down Table D Voltage and Frequency Settings Setting Description Setting Factory Setting Settings DIP Switch DIP Actuator Actuator Position voltage 220 240 V non adjustable S2 2 on up frequency nominal 60 Hz 50 Hz S1 4 on up frequency nominal 60 Hz 60 Hz S1 4 off down phase single non ...

Page 7: ...led to start immediately and the load transfers to the generator if acceptable If the generator fails the load transfers back to the utility if acceptable Table F Remote transfer to generator Function Factory Setting DIP Switch DIP Actuator Actuator Position disabled disabled S3 2 on up enabled disabled on S3 2 off down Bypass load transfer to utility time delay Normally closed input When opened i...

Page 8: ...le before proceeding 2 Voltage Checks The ATS is rated for 220 240 V ac 60 or 50 Hz Verify that both the utility and generator sources are 220 240 V ac 60 or 50 Hz maintenance handle With ALL POWER OFF grasp maintenance handle and turn it quickly with your thumb and fingers weight marked P utility and A generator Figure 8 Maintenance handle for 100 230 A maintenance handle shaft hole Figure 9 Main...

Page 9: ... to return light is on light is off utility acceptable generator off Utility power good Electrical loads on utility electrical loads switched to generator start generator electrical loads switched back to utility generator acceptable utility returns load on utility utility off generator acceptable load on generator utility off generator off load off utility off generator acceptable load on utility...

Page 10: ...that the correct contact normally open or normally closed is being utilized see the generator manual 5 With ALL POWER OFF verify engine start low voltage wiring between the controller terminal block and the generator See the wiring diagram Check that the plug is properly seated in the receptacle on the controller The generator cranks but does not start and run when the util ity source fails or whe...

Page 11: ...or Some motor loads require three times more power for starting 3 Check for short circuit in a connected load 4 Observe the Load on Utility and Load on Generator lights The ATS does not retransfer the load back to the utility 1 Verify that the Utility Acceptable light is on The ATS will not transfer the load to an unacceptable source 2 Wait approximately 5 minutes for the retransfer to utility tim...

Page 12: ...or transfer switch 6 rating cover lights 2 7 Load on Generator light 2 7 Load on Utility light 2 7 M manual operation 6 illustration of 6 warning 6 mounting 1 O operation electrical 6 manual 6 sequence of 7 override momentary outages 4 P pickup 4 problem 8 9 R rating label cover remote control features 5 bypass transfer time delay 5 remote test 5 remote transfer to emergency 5 S service 800 800 27...

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Emerson ASCO 185 Series, Operator'S Manual

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