381333270 C50 Hanover Road, Florham Park, New Jersey 079321591 USAFor sales or service call 1 800 8002726 (ASCO) www.ascopower.com

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

OperatorsManual

4000 Series ATSAutomatic OpenTransition Transfer Switches

Ddesign 30230A, Jdesign 260600A,Hdesign 8001200A, Gdesign 16004000A, Fdesign 4000A

DANGER is used in this manual to warn of highvoltages capable of causing shock, burns, or death.

WARNING is used in this manual to warnof possible personal injury.

CAUTION is used in this manual to warnof possible equipment damage.

Refer to the outline and wiring drawings providedwith your 4000 Series ATS for all installation andconnection details and accessories.

Refer toGroup 5 Controller Users Guide 381333126for ATS status display messages, time delays, pickup& dropout settings, and adjustments.

An experienced licensed electrician must install the ATS.

Rating LabelEach automatic transfer switch contains a rating label todefine 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 personalinjury or serious equipment damage.

NameplateThe Transfer Switch nameplate includes data for eachspecific 4000 Series ATS. Use the switch only within thelimits shown on this nameplate. A typical CatalogNumber is shown on the next page with its elementsexplained.

TABLE OF CONTENTSsection-page

INSTALLATION 1-1. . . . . . . . . . . . . . . . . . . . . . . .Mounting and Line Connections 1-1. . . . . . . . .Auxiliary Circuits and Harness 1-2. . . . . . . . . . .Engine Starting Contacts 1-3. . . . . . . . . . . . . . .Functional Test 1-4 through 1-7. . . . . . . . . . . . . .

TESTING & SERVICE 2-1. . . . . . . . . . . . . . . . . .Transfer Test 2-1. . . . . . . . . . . . . . . . . . . . . . . . . .Preventive Maintenance 2-1. . . . . . . . . . . . . . . .Disconnecting the Controller 2-1. . . . . . . . . . . .Manual Load Transfer 2-2. . . . . . . . . . . . . . . . . .Trouble-Shooting 2-2. . . . . . . . . . . . . . . . . . . . . .

INDEX back cover. . . . . . . . . . . . . . . . . . . . . . . . .

Catalog Number IdentificationTypical 4000 Series catalog no. for Ddesign, 3 pole, 150 amp, 480 V, ATS in Type 1 enclosure:

4ATS C 3 150 N 5 C

Phase PolesNeutral

A solid

Amperes Voltage Controller Enclosure

B switched 5X ifaccessories

ordered

5 standard

G type 4

C type 1F type 3R

H type 4X

3 three 2 single

B 120

D 220

A 115

C 208

E 230

K 415

M 460

J 400

L 440

N 480

G 277F 240

H 380Q 575P 550

R 600

3070

1200

2000

1000

1600

2600

125100

3000

150blank none

blank open type

Ddesignprefixletter

600800

200*

230*

260

* 200 & 230 amp.limited to 480 volts

4000400

L type 12

TransferSwitch

powerconnections

Group 5Controller

TransferControl& lights

150 amp size in typical enclosure with location of customer connections

powerconnections

enginestartingcontactconnections

SECTION 1 INSTALLATION

1---1

ASCO 4000 Series Automatic OpenTransition TransferSwitches are factory wired and tested. Field installationsimply requires mounting and connection of servicecables, and auxiliary control circuits (if required).

Remove the Shipping SkidFor large switches, open the front door and remove thefour lag screws (2 in front, 2 in rear) securing enclosureto the wood skid.

Supporting Foundation

The supporting foundation for the enclosure must leveland straight. Refer to the applicable enclosure outlinedrawing included with the ATS for all mounting detailsincluding door opening space.

If bottom cable entry is used, the foundation must beprepared so that the conduit stubs are locatedcorrectly. Refer to the enclosure outline drawing forspecified area and location. Provide cable bendingspace and clearance to live metal parts. When aconcrete floor is poured, use interlocking conduitspacer caps or a wood or metal template to maintainproper conduit alignment.

MountingRefer to the outline and mounting diagram provided withthe ATS; it shows all mounting details and instructions.

Protect the switch from construction gritand metal chips to prevent malfunction orshortened life of the automatic switch switch.

Mount the ATS vertically to a rigid supporting structure.Level all mounting points by using flat washers behindthe holes to avoid distortion of the switch.

The controller is mounted on the cabinet door. Anadd-on DIN rail is provided for some optional accessoriesand is mounted below controller on the door.

Deenergize the conductors before making anyline or auxiliary circuitry connections. Be surethat Normal and Emergency line connectionsare in proper phase rotation. Place enginegenerator starting control in the OFF position.Make sure engine generator is not in operation.

Testing Power Conductors

Do not connect the power conductors to the transferswitch until they are tested. Installing power cables inconduit, cable troughs and ceiling-suspended hangersoften requires considerable force. The pulling of cablescan damage insulation and stretch or break theconductors strands. For this reason, after the cables arepulled into position, and before they are connected, they

should be tested to verify that they are not defective orhave been damaged during installation.

Connecting Power Conductors

AWiring Diagram is furnished with the ASCO 4000Series ATS (separate from this manual). Refer to thisdrawing. All wiring must be made in accordance withthe National Electrical Code and local codes.

After the power cables have been tested, connect them tothe appropriate terminal lugs on the transfer switch asshown on the wiring diagram provided with the switch.Make sure the lugs provided are suitable for use with thecables being installed. Standard terminal lugs aresolderless screw type and will accept the wire sizes listedon the drawings provided with the switch. Be carefulwhen stripping insulation from the cables; avoid nickingor ringing the conductor. Remove surface oxides fromcables by cleaning with a wire brush. When aluminumcable is used, apply joint compound to conductors.Tighten cable lugs to the torque specified on rating label.

Do not run cables in front of or behind the switch.Cables can be bundled on the right side of the switch.Maintain proper electrical clearance between the livemetal parts and grounded metal: inch minimum for150-400 amps, 1 inch minimum over 400 amps.

It is not necessary to remove the barriers from thetransfer switches to install the cables. If you do removethem,however, be sure to reinstall the barriers carefully.

Three cable spacers are included with 150, 200, & 230amp transfer switches. When installing power cables,run the cables through the cable spacers as shown inFigure 1-1. Position the cable spacers within 1 inchesfrom the lugs.

The cable spacers must be located as shownfor 150, 200, and 230 ampere transfer switches.

cable spacer

cable spacers

1 inch approximate

Figure 1-1. Cable spacers for 150 through 230 amp.Ddesign transfer switches.

INSTALLATION (continued)

1---2

Auxiliary Cable Boxes

For 1000 & 1200 amp. sizes, an auxiliary cable box isrequired for all (normal, emergency, & load)bottom ortop entry. Order ASCO part no. 609027 if required.

On 1000 & 1200 amp. be sure to install auxiliarycable box if both service and load cables areentering through the top or bottom of enclosure.

Bus ConnectionsFor large switches use grade 5 hardware to connect busto appropriate terminal plates. Wipe off the bussurfaces before they are joined. If the bus is very dirty,gently clean the surfaces with a non---flammablesolvent. Avoid touching the cleaned surfaces.

Tighten bolted joints to the torque specified in Table A.

The reliability of the connection dependson how clean and how tight the joint is.

Table A. Tightening torque values for bolted joints(Grade 5 hardware)

Bolt Diameterin inches

Tightening Torquein foot pounds

1/4 75/16 123/8 201/2 505/8 953/4 155

Controller Ground

A grounding wire must be connected to the controllerslower left mounting stud. Because the controller ismounted on the enclosure door, a conductive strapmust be used between the enclosure and the door. Thisconnection provides proper grounding which does notrely upon the door hinges.

HarnessesThe transfer switch is connected to the left side of thecontrol panel by a plug-in harness (two plugs).

Auxiliary CircuitsConnect auxiliary circuit wires to appropriate terminalson the transfer switch. Note the control features thatare furnished on this switch. Make the necessaryauxiliary connections by referring to the WiringDiagram.

INSTALLATION (continued)

1---3

Engine Starting ContactsThe engine control contact connections (if used) arelocated on the transfer switch. Connect signal wires toappropriate terminals as specified in Table B andshown in Figures 12, 13, and 14.

Table B. Engine start connections

When normalsource fails

Terminals ontransfer switch

contact closes TB1 and TB2contact opens TB1 and TB3

TB 14

TB 15TB 16

ENGINE STARTING CONTACTS( SHOWN DEENERGIZED )

TOPSTUD

MIDDLESTUD

BOTTOMSTUD

14

15

16

TS

NR

NR

Figure 1-2. Engine starting contact labeland location for 30 through 230 amp.

Ddesign transfer switches.

COMMON

FEATURE 7closes to start

FEATURE 8opens to start

COMMON

FEATURE 14Bclosed on emergency

FEATURE 14Aclosed on normal

COMMON

FEATURE 14BAclosed on emergency

FEATURE 14AAclosed on normal

Engine StartingSignals

5 amps, 32 V DC5 amps resistive 28 V DC

or 120 V AC max.

TS Auxiliary ContactsFeature 14A & 14B10 amps, 32 V DC10 amps 250 V ACgeneral purpose

OptionalTS Auxiliary ContactsFeature 14AA & 14BA

10 amps, 32 V DC10 amps 250 V ACgeneral purpose

left side of transfer switch

Figure 1-3. Connections to engine starting contactterminal block for 260 through 1200 amp.

J and Hdesign transfer switches.

TB Terminal Block(field connections)accepts wire range2212 AWG

Engine StartingSignals

5 amps, 32 V DC5 amps resistive 28 V DC

or 120 V AC max.

TS Auxiliary ContactsFeature 14A & 14B10 amps, 32 V DC10 amps 250 V ACgeneral purpose

FEAT

URE7

closes

tostart

FEAT

URE8

open

sto

start

Figure 1-4. Connections to engine starting contactterminal block located on 1600 through 4000 amp.

Gdesign transfer switches.

INSTALLATION (continued)

1---4

Functional TestThe Functional Test consists of three checks:

S 1 Manual Operation Test, pages 14, 15

S 2 Voltage Checks, page 16

S 3 Electrical Operation, page 17

Do these checks in the order presentedto avoid damaging the ATS.

Read all instructions on the Wiring Diagram and labelsaffixed to the ATS. Note the control features that areprovided and review their operation before proceeding.

1 Manual Operation TestAmanual operator handle (detachable on 2604000 amp.sizes) is provided on the transfer switch for maintenancepurposes only. Manual operation of the transfer switchmust be checked before it is operated electrically.

Do not manually operate the transfer switchuntil both power sources are disconnected:open both circuit breakers.

1. Select the appropriate switch design / amp. size andfollow directions for installing and using the handle:

30 through 230 amp. Ddesign See Figure 1-5.The attached maintenance handle is located on theleft side of transfer switch. Grasp the maintenancehandle and turn it with thumb and fingers as shownto manually operate it. The maintenance handleturns the opposite direction of the weight.

260 through 1200 amp. J & Hdesign Fig. 1-6, 1-7.Attach the manual handle onto the hub, left side ofthe operator.1600 through 4000 amp. Gdesign See Figure 1-8.Install the hub onto the center operator shaft andinsert the manual firmly into the hole in the side ofthe hub (spring fully compressed).

4000 amp. Fdesign See Figure 1-9.Insert the manual handle into the hole in the weight.

2. Move the handle as shown to manually operate theTransfer Switch. The switch should operatesmoothly without binding. If it does not, check forshipping damage or construction debris.

3. Return the transfer switch to the N (closed onnormal) position. If removable, remove themaintenance handle and store it on the transferswitch in the place provided.

For switches rated 260 amps and higher, verifythat the maintenance handle has been removedand stored properly before proceeding!

maintenancehandle

With ALL POWER OFF graspmaintenance handle and turn it

quickly with your thumb and fingers.

weight marked N (normal)and E (emergency)

floatingweight

weight

Position of the transfer switch is indicated here

Figure 1-5. Permanently attached maintenancehandle and positions on 30 230 amp. Ddesign

transfer switches.

Table C. Maintenance handle positions.

ATS Position Handle Indicators

Normal

E

N

up E = Oupper contacts open

N = Clower contacts closed

Emergency

E

N down

E = Cupper contacts closed

N = Olower contacts open

Now continue to 2 Voltage Checks on page 16.

INSTALLATION (continued)

1---5

maintenancehandle

left side oftransfer switch

storage clips

Figure 1-6. Location of maintenance handleon 260 1200 amp. J & Hdesign transfer switches.

maintenancehandle

weighthole

Figure 19. Removable maintenance handle on4000 amp. Fdesign transfer switch.

handle

hub

UP closes theNormal sourcecontacts (lower)

DOWN closes theEmergency sourcecontacts (upper)

frame

windowindicatorsO is openC is closed

Emergencycontacts

Normalcontacts

contact positionindicators (right side)

Figure 1-7. Removable maintenance handle and positions on 260 1200 amp. J & Hdesign transfer switches.

Turn clockwise DOWNto close bottom(Normal) contacts.

Turn counterclockwiseDOWN to close top(Emergency) contacts.

windowindicators

OPEN orCLOSED

Emergencycontacts

Normalcontacts

contact positionindicators (left side)

Insert handle into hole (spring fully compressed)

Grasp handle firmly with both hands

Slide the hubonto the shaft.

Figure 1-8. Removable maintenance handle and positions on 1600 4000 amp. Gdesign transfer switches.

INSTALLATION (continued)

1---6

observethese lights

Press for 15 Sec.

Figure 1-10. Standard controls and indicators.

2 --- Voltage Checks

First check the nameplate on the transfer switch; therated voltage must be the same as the normal andemergency line voltages.

Verify that the feeders have beenconnected to the proper lugs.

Use extreme caution when using a meterto measure voltages. Do not touch powerterminals; shock, burns, or death could result !

Perform steps 1 through 6 at the right. Observe thestatus lights. See Figure 1---10.

O Black circle means light is on.

P White circle means light is off.

* If necessary, adjust the voltage regulator on thegenerator according to the manufacturersrecommendations. The automatic transfer switch willrespond only to the rated voltage specified on thetransfer switch nameplate.

Note: Refer to Section 3 of the Group 5 ControllerUsers Guide 381333126 for how to display the statusof the ATS and the voltage and frequency of eachsource.

Note: Press the Lamp Test button to verify that allfive lights work.

Now continue to 3 --- Electrical Operation on next page.

1

Close the normal source (utility)circuit breaker. Two two leftlights should come on. Thenormal source Accepted (upperleft) and the Transfer SwitchPosition connected to normal(lower left) lights should be on.

2

Carefully use an accuratevoltmeter to check the phase tophase and phase to neutralvoltages present at the transferswitch normal source terminals.

3

Close the emergency source(generator) circuit breaker.(Start generator, if necessary.)Another light should come on.The emergency sourceAccepted light (upper right)should be on.

4

Carefully use an accuratevoltmeter to check the phase tophase and phase to neutralvoltages present at the transferswitch emergency sourceterminals.*

5

Carefully use a phase rotationmeter to check the phaserotation of the emergencysource; it must be the same asthe phase rotation of the normalsource (refer to wiring diagram).

A B C

6

Shut down the generator, ifapplicable. The emergencysource Accepted light (upperright) should go off. Then setthe generators starting controlswitch to automatic. Remove allmeters; close enclosure door.

INSTALLATION (continued)

1---7

observethese lights

pressthese buttons

step 2 step 4

If this light is on, the buttons will not workuntil they are unlocked. See below.If this light is blinking, the buttons aretemporarily unlocked for 5 minutes.

Press for 15 Sec.

Figure 1-11. User controls and indicators.

3 --- Electrical Operation

This procedure will check the electrical operation ofthe automatic transfer switch. See Figure 1---11.

Be sure to close the enclosure door beforeproceeding to prevent personal injury incase of electrical system fault.

Transfer Test

Both normal and emergency sources must be availableand the emergency source generator (if used) must becapable of being started in this procedure.

Perform steps 1 through 5 at the right. Observe thestatus lights.

O Black circle means light is on.

P White circle means light is off.

If the User Controls Locked light is on, the Transfer Testand Retransfer to Normal buttons will not work untilyou unlock them.

How to temporarily unlock the user controls(if the User Controls Locked light is on)

Press up or down arrow keys on Transfer ControlCenter (Group 5 Controller), enter the password, andpress Enter key. The user controls are now unlockedfor 5 minutes. During that time the light will blink.

To permanently unlock or lock the user controls referto the Group 5 Controller Users Guide 381333126.Password information and time delay settings are alsoprovided there.

This completes the functional test of the ATS.

1

The two left lights should be on;the normal source Accepted(upper left) and the TransferSwitch Position connected tonormal (lower left) should be on.

2

Press and hold the Transfer Testbutton until the generator startsand runs (this should happenwithin 15 sec.). The emergencysource Accepted light (upperright) should come on.

3

Then the transfer switch shouldoperate to emergency.The Transfer Switch Positionconnected to emergency light(lower right) should come on andthe connected to normal light(lower left) should be off.If Feature 2B is used, the transferto emergency will occur after thetime delay.

4

The transfer switch shouldoperate back to normal afterFeature 3A time delay.For immediate retransfer pressthe Retransfer to Normal button.The Transfer Switch Positionconnected to normal light(lower left) should come on andthe connected to emergency(lower right) light should be off.

5

The generator will stop afterFeature 2E time delay (unloadedrunning engine cooldown).The emergency source Acceptedlight (upper right) should go off.

SECTION 2 TESTING & SERVICE

2---1

TRANSFER TESTOperate the 4000 Series ATS at least once a month byfollowing the fivestep Electrical Operation TransferTest procedure on page 17.

PREVENTIVE MAINTENANCEReasonable care in preventive maintenance will insurehigh reliability and long life for the 4000 Series ATS.An annual preventive maintenance program isrecommended.

In the United States, ASCO Services, Inc. (ASI)is ASCO Power Technologiess national serviceorganization. ASI can be contacted at1-800-800-2726 (ASCO) for information onpreventive maintenance agreements.

In Canada, for service call 1-888-234-2726 (ASCO).

Checklist for Yearly Inspection

Hazardous voltage capable of causing shock,burns, or death is used in this transfer switch.Deenergize both Normal Emergency powersources before performing inspections!

S Clean the ATS enclosure. Brush and vacuumaway any excessive dust accumulation. Remove anymoisture with a clean cloth.

S Check the transfer switch contacts. Remove thetransfer switch barriers and check contact condition.Replace the contacts if they become pitted or wornexcessively. Reinstall the barriers carefully.

S Maintain transfer switch lubrication. If thetransfer switch is subjected to severe dust orabnormal operating conditions, renew factorylubrication on all movements and linkages.Relubricate the solenoid operator if the TS coil isreplaced. Do not use oil; order lubrication625550001 (Castrol Endurex R 4000 lubricant) for30230 amp., or order lubrication kit 75-100 for2604000 amp. sizes.

S Check all cable connections & retighten them.

REPLACEMENT PARTSReplacement parts are available in kit form. Whenordering parts provide the Serial No., Bill of MaterialNo. (BOM), and Catalog No. from the transfer switchnameplate. Contact your local ASCO PowerTechnologies Sales Office or ASI:

in United States call 1 800 800 ASCO (2726)or in Canada call 1 888 234 ASCO (2726)

DISCONNECTING THE CONTROLLER

The harness disconnect plugs are furnished for repairpurposes only and should not have to be unplugged. Ifthe controller must be isolated, follow these steps:

Disconnecting the Plugs

Do not unplug the controlleruntil steps 1a or 1b is completed.

1. Observe the position of the transfer switch.

a. If the transfer switch is in the Normal position,first place standby engine starting control in theoff position. Second, then open the emergencysource circuit breaker. Third, open the normalsource circuit breaker.

b. If the transfer switch is in the Emergencyposition, first open the normal source circuitbreaker. Second, place the engine startingcontrol in the test or run position. Third, openthe emergency source circuit breaker.

2. Separate the two quick disconnect plugs by squeezingthe latches. Do not pull on the harness wires.

Reconnecting the Plugs

Do not reconnect the controlleruntil steps 1a or 1b is completed.

1. Observe the position of the transfer switch.

a. If the transfer switch is in the Normal position,first be sure that both normal and emergencysource circuit breakers are open. Second, besure that the standby engine starting control isstill in the off position.

b. If the transfer switch is in the Emergencyposition, first be sure that both normal andemergency source circuit breakers are open.

2. The two harness plugs and sockets are keyed.Carefully align the plugs with the sockets and pressstraight in until both latches click. Close the door!

3. Restore the two sources in sequence as follows:

a. If the transfer switch is in the Normal position,first close the normal source circuit breaker.Second, close the emergency source circuitbreaker. Third, place the standby enginestarting control in the automatic position.

b. If the transfer switch is in the Emergencyposition, first close the emergency source circuitbreaker. Second close the normal source circuitbreaker.

TESTING & SERVICE (continued)

2---2

MANUAL LOAD TRANSFERThis procedure will manually transfer the load if thecontroller is disconnected.

Do not manually operate the transfer switchuntil both power sources are disconnected(all conductors deenergized).

1. Deenergize both the normal and emergency sourceconductors (remove fuses or open circuitbreakers).

2. Use the maintenance handle to manually operate thetransfer switch to the opposite source. See ManualOperation on pages 14, 15.

3. Then remove the maintenance handle, if it isdetachable. See pages 14, 15.

Verify that the maintenance handlehas been removed before proceeding!

4. If the transfer switch is in the Emergency positionmanually start the engine generator and theninstall emergency source fuse or close the circuitbreaker.

TROUBLE-SHOOTING

Note any optional accessories that may be furnished onthe ATS and review their operation. Refer to anyseparate drawings and/or instructions that may bepacked with the ATS.

Hazardous voltage capable of causing shock,burns, or death is used in this switch.Do not touch the power or load terminalsof the transfer switch!

Table 2-1. Trouble-Shooting Checks.

PROBLEM CHECK IN NUMERICAL SEQUENCEPROBLEM1 OPERATION 2 GEN-SET 3 VOLTAGE

Enginegenerator set doesnot start when the TransferTest button is pressed andheld for 15 seconds or whennormal source fails.

Hold Transfer Test switch 15seconds or the outage mustbe long enough to allow forFeature 1C time delay plusengine cranking and starting.

Starting control must be in theautomatic position. Batteriesmust be charged andconnected. Check wiring toengine starting contacts.

---

Transfer switch does nottransfer the load to theemergency source after theenginegenerator set starts.

Wait for Feature 2B time delayto time out.

Generator output circuitbreaker must be closed.Generator frequency must beat least 95% of nominal (57 Hzfor a 60 Hz system.) *

Voltmeter should read at least90% of nominal phase tophase voltage betweenterminals EA and EC (or EL1and EL2 for 2 pole switches)*

Transfer switch does nottransfer the load to normalsource when normal returnsor when the Transfer Testbutton is released.

Wait for Feature 3A time delayto time out.

---

Voltmeter should read at least90% of nominal phase tophase voltage betweenterminals NB and NC, NC andNA, and NA and NB (or NL1and NL2 for 2 pole switches).

Gen. does not stop after loadretransfer to normal source.

Wait for Feature 2E time delayto time out.

Starting control must be in theautomatic position. ---

* These are factory settings. Refer to Group 5 Controller Users Guide.

If the problem is isolated to circuits on the controller or the transfer switch, call your local ASCO Power Technologiessales office or ASI. In the United States, call 18008002726. In Canada, call 18882342726. Furnish the Serial No.and Catalog No. from the transfer switch nameplate.

INDEX

Printed in U.S.A.Copyright 2009 ASCO Power Technologies, L.P.

Aaccepted lights, 16

auxiliary circuits, 12

Ccablelugs, 12preparation, 12

catalog number, inside cover

cleaning, 21

connectionsline, 11

controller, 11disconnecting, 21see Controller Users Guide

Eelectrical operation, 17

emergency source accepted light,16

Ffrequency, generator, 22

functional test, 14, 15, 16, 17

Gground, controller, 12

Hharness, 11disconnect plugs, 21

HELPcustomercare@asco.com800800ASCO

Iinspection, 21

installation, 11

Llabels,engine start contacts, 13rating, cover

lamp test, 16

lights, 16, 17

lubrication, 21

Mmaintenance handle, 14, 15

maintenance, preventive, 21

manual load transfer, 22warning, 22

manual operation, 13illustration of, 13warning, 13

Nnameplate, cover

normal source accepted light, 16

Ooperationelectrical, 17manual, 14, 15illustration of, 14, 15warning, 14

optional accessoriessee Controller Users Guide

Pparts, 21

phase rotation check, 16

problem, 22

Rrating label, cover

replacement parts, 21

retransfer to normal, 17

Ssettingssee Controller Users Guide

Ttest, functional, 14, 15, 16, 17

time delays, 21see Controller Users Guide

transfer switch connected toemergency light, 17, 21

transfer switch connected to normallight, 16, 21

transfer test, 17

transfer to emergency, 17

transfer to normal, 16, 21

troubleshooting, 22

Uuser controls locked, 17

Vvoltage checks, 14

voltage, pickup and dropout settingssee Controller Users Guide

333270c0333270ap333270c1333270b2333270ci