KGATX0101400 Automatic Transfer Switch
Contents
1. awa oe les 12 Section 6 Exploded Views and Parts List ts RTS W Type Transfer Switch A 400 A Switch Assembly Drawing No 0G1510 KO 1 0D7294 1 XFER SW W 400A600V2P 2 0A7822 6 LUG SLDLSS 600 250 1 0X1 4 28 3 026902 5 SCREW TAPTITE 8 32X1 4 BP 4 007907 COVER LUG 2P 400AMP 5 024526 1 SCREW HHTT 5 16 18 X 3 4 CZ 6 057329 1 LUG SOLDERLESS 350 6X13 32 AL CU 7 027482 1 WASHER SHAKEPROOF EXT 5 16 STEEL 8 022097 9 WASHER LOCK M6 1 4 9 0C8275 4 SCREW PPHM DSEMS M4 7 X 10 ZNC 2 10 0D2806 1 FUSEBLOCK 30A 600V 2POS W SQ 11 090388 3 SCREW TAPTITE M6 1 0 X 12 MM 12 0A1495 6 SCREW TAPTITE M4 7 X 10 MM 2 13 063617 1 RELAY PNL 12VDC DPDT 10A 240VA 14 047411 2 SCREW HHC M6 1 0 X 16 G8 8 15 0A1661 2 RIVET POP 16 0F4034 1 ASSY NEUTRAL BLOCK 300 400A 17 0 5935 1 RTS 3R ENCLOSURE 24X36X10 18 0F5939 1 COVER TRANSFER SWITCH 19 068308 2 DECAL TERMINAL SHOCK HAZARD 20 0C2262 1 DECAL TERMINAL STRIP 21 OF62. 6 3 2 3 Return to Normal Source Side 6 3 3 Voltage Check Si uu esis Hed a DAN aqsu easy 6 3 3 1 Utility Voltage Ch ekS saang sana a maa akan 6 3 3 2 Generator Voltage Checks 6 3 4 Generator Tests Under Load 7 Section 4 Installation Diagram 8 Section 5 Electrical Data 9 Section 6 Exploded Views amp Parts Lists 12 Section 7 Warranty Back Cover RTS W Type Transfer Switch 1 1 INTRODUCTION This manual has been prepared especially for the purpose of familiarizing personnel with the design application installation operation and servicing of the applicable equipment Read the manual carefully and comply with all instructions This will help to prevent accidents or damage to equipment that might otherwise be caused by carelessness incorrect appli cation or improper procedures Every effort has been expended to make sure that the contents of this manual are both accurate and cur rent The manufacturer reserves the right to change alter or otherwise improve the product at any time without prior notice 1 2 EQUIPMENT DESCRIPTION The automatic transfer switch is used for transferring critical electrical loads from a UTILITY NORMAL power source to an E
3. NOVULO SIA 3108 5 0 8 O Other SLY OML NI NOY 38 ISAW sayal HOLIMS 34SNVL GNV SQV31 Y3MOd 310 39018 1 LOANNOOSIG 33 35 WOds AlddNAS ALMILA JO 14 31 ddy SIHL NI 35 LON Jw 5 1 1433 03 81 ONY 8 1 ND ISNVd NOILOSANNOO N39 3NISN3 Section 5 Electrical Data RTS W Type Transfer Switch ELECTRICAL _ DATA Wiring Diagram Schematic Drawing No 0D3819 A TR F1 126 TAG N1A N1A NN NI F2 N2A N N2 126 i N1A D OOO O O ATOMO TOMO O O T T2 2 a 205 LS1 o 2 3 5 6 6 e TR RED 9 e e N2A WHITE C 1 4 lo E1 LS2 GTS O A2 OE2 E1 E2 N2A 23 D 23 LEGEND TR C CONTACTOR ACTUATING COIL GTS TRANSFER SWITCH CONTACTOR A TR RELAY TRANSFER 194 amp 194 TS TERMINAL STRIP CUSTOMER CONNECTION LS1 LS2 LS3 LIMIT SWITCHES ACTUATOR F1 F2 FUSE
4. ON position 3 3 VOLTAGE CHECKS 3 3 1 UTILITY VOLTAGE CHECKS 1 Turn ON the UTILITY power supply to the trans fer switch with whatever means provided such as the UTILITY maim line circuit breaker A DYE A A PROCEED WITH CAUTION THE TRANSFER SWITCH IS NOW ELECTRICALLY HOT CONTACT WITH LIVE TERMINALS RESULTS IN EXTREMELY HAZARDOUS AND POSSIBLY FATAL ELECTRICAL SHOCK 2 With an accurate AC voltmeter check for correct voltage Single phase utility supply Measure across ATS terminal lugs N1 and N2 N1 to NEUTRAL and N2 to NEUTRAL A DY A A FAILURE TO TURN OFF THE UTILITY SUPPLY BEFORE WORKING ON THE UTILITY CONNEC TIONS OF THE ATS WILL RESULT IN EXTREMELY DANGEROUS AND POSSIBLY FATAL ELECTRICAL SHOCK 5 When certain that UTILITY supply voltage is cor rect and compatible with transfer switch ratings turn OFF the UTILITY supply to the transfer switch 4 3 3 2 GENERATOR VOLTAGE CHECKS 1 On the generator panel set the AUTO OFF MANUAL switch to MANUAL position The gen erator should crank and start 2 Let the generator stabilize and warm up at no load for at least five minutes 3 Set the generator s main circuit breaker CB1 to its ON or CLOSED position A DIG A PROCEED WITH CAUTION GENERATOR OUTPUT VOLTAGE IS NOW BEING DELIVERED TO TRANSFER SWITCH TERMINALS CONTACT WITH LIVE TERMINALS RESULTS IN EXTREMELY DANGEROUS AND POSSIBLY FATAL ELECTRICAL SHOCK 4 With
5. generator s main circuit breaker OFF Then place a DO NOT OPERATE tag on the transfer switch and on the generator Remove the Negative Neg or battery cable Table of Contents TABLE OF CONTENTS Safety Rules Inside Front Cover Section 1 General Information 2 1 1 TOGEL ON u ASEAN b aa AK 2 1 2 Equipment Description ses sasananing a adegan 2 1 3 Transfer Switch Data Label eee 2 1 4 Transfer Switch Enclosure sas sanane aaa ana aan nasa 2 1 5 Safe Use of Transfer Switch uu eee 2 Section 2 Installation 3 2 1 Introduction to Installation 3 2 2 Unpacking isan naga a aaa Waa an ye qanta ga a nala gan 3 2 3 MOUMUNG y aaa ae 3 2 4 Connecting Power Source and Load Lines 3 2 4 1 2 Pole M eCHan iSWL 2 gin ge na ka Hah 3 2 5 Connecting Start Circuit Wires 4 2 6 Auxillary Contacts eroosion aia 4 Section 3 Operation 4 3 1 Functional Tests amp Adjustments 4 3 2 Mantial Opera till sx a si a 4 4054 05xk 22555 nenos 5 3 2 1 Close to Normal Source Side 5 3 2 2 Close to Emergency Source Side
6. installation and intercon nection inspect the entire installation carefully A competent qualified electrician should inspect it The installation should comply strictly with all appli cable codes standards and regulations When abso lutely certain the installation is proper and correct complete a functional test of the system caution Perform functional tests in the exact order pre sented in this manual or damage to the switch could be done IMPORTANT Before proceeding with functional tests read and make sure you understand all instructions and information in this section Also read the infor mation and instructions of labels and decals affixed to the switch Note any options or accessories that might be installed and review their operation 3 2 MANUAL OPERATION A DIE A Do NOT manually transfer under load Disconnect transfer switch from all power sourc es by approved means such as a main circuit breaker s A manual HANDLE is shipped with the transfer switch Manual operation must be checked BEFORE the transfer switch is operated electrically To check manual operation proceed as follows 1 Turn the generator s AUTO OFF MANUAL switch to OFF 2 Turn OFF both UTILITY and EMERGENCY power supplies to the transfer switch with whatever means provided such as the main line circuit breakers 3 Note position of transfer mechanism main con tacts by obse
7. or while hands or feet are wet DANGEROUS ELECTRICAL SHOCK MAY RESULT Because jewelry conducts electricity wearing it may cause dangerous electrical shock Remove all jewelry such as rings watches bracelets etc before working on this equipment If work must be done on this equipment while standing on metal or concrete place insulative mats over a dry wood platform Work on this equipment only while standing on such insulative mats Never work on this equipment while physically or mentally fatigued Keep the transfer switch enclosure door closed and bolted at all times Only qualified personnel should be permitted access to the switch interior In case of an accident caused by electric shock immediately shut down the source of electrical power If this is not possible attempt to free the victim from the live conductor but AVOID DIRECT CONTACT WITH THE VICTIM Use a nonconduct ing implement such as a rope or board to free the victim from the live conductor If the victim is unconscious apply first aid and get immediate medical help When an automatic transfer switch is installed for a standby generator set the generator engine may crank and start at any time without warning To avoid possible injury that might be caused by such sudden start ups the system s automatic start cir cuit must be disabled before working on or around the generator or transfer switch Turn the genera tor s AUTO OFF MANUAL switch to OFF Turn the
8. 165 2 WASHER NYLON 22 0G1520 1 DECAL DATA XFER SW 400A 240V 23 064101 6 NUT HEX FL WHIZ 3 8 16 24 40 1 SUBPLATE 100A TS 3R 480V 25 087680 1 NUT WING M6 1 0 26 063378 4 HOLDER CABLE TIE 27 064761 4 TIE WRAP UL 5 6 X 10 NATL 28 063321 1 HANDLE TRANSFER SWITCH 1 400A 29 073590A 2 FUSE 5A X BSS HLDR73591 30 0D3587 1 DECAL FUSE REPLACEMENT 31 067210A 1 DECAL GROUND LUG 32 0A9457 1 DECAL NEUTRAL 33 0D4545 1 DECAL MANUAL OPERATION 1 34 0F6129 1 DECAL TEST SEQUENCE 35 081221 1 DECAL UL NAMEPLATE 36 0A8261 6 SCREW HHCS 1 4 28 X 5 8 37 022473 6 WASHER FLAT 1 4 6M ZINC 2 38 048850 1 BLOCK TERM 20A 5 X 6 X 1100V 39 0F6273A 1 HARNESS 400A 2 POLE RTS NOT SHOWN 40 022129 1 WASHER LOCK M8 5 16 41 091472 2 DUCT WIRING 1X1 5 42 091472A 2 COVER WIRE DUCT 1 IN 43 067989 2 NUT HEX FL WHIZ M8 1 25 1 CENTER DECAL ON INSIDE OF THE COVER ITEM 18 2 ITEMS INCLUDED WITH HARNESS 13 Section 8 Warranty WARRANTY RTS W Type Transfer Switch CARRIER WARRANTY SERVICE Carrier will warrant that from the date of purchase our transfer switch will be free from defects in material and workmanship for the items and periods set forth in the warranty statement found in the owners manual of the Carrier generator that this transfer switch will be utilized with Any equipment that the purchaser owner claims to be defective must be examined by the nearest Carrier Dealer THIS WARRANTY IS IN PLACE OF ALL OTHER WARRANTIES EXPRESSE
9. 5A SENSING NOTES ALL CONTACTS SHOWN WITH TRANSFER SWITCH IN UTILITY POSITION 10 Section 5 Electrical Data RTS W Type Transfer Switch Wiring Diagram Schematic Drawing No 0D3819 A ELECTRICAL DATA N2A N2A N1A N1A N1 N2 O O NIA GTS O O E1 E2 N2A O O 5 8 TI T2 L E2 N2A 205 El 126 N1A TR 1 126 111 A 7 1 N2A B 9 6 3 NA 194 23 205 E1 23 NIA 194 N2A N1A N1A N2A 23 194 F1 F2 N1 N2 23 194 o T TS o 21 lt a 2 E gt F 35 5 11 Section 6 Exploded Views and Parts List RTS W Type Transfer Switch 400 A Switch Assembly Drawing No 0G1510 HOLIMS M G 3I Iddns Te EE90 N d 3 ve ONY 98 5 3411 N33M138 3141 1 15 OL MIMIS ONILNAOW 3 804 96 81 2 1
10. D OR IMPLIED SPECIFICALLY CARRIER MAKES NO OTHER WARRANTIES AS TO THE MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE Some states do not allow limitations on how long an implied warranty lasts so the above limitation may not apply to you CARRIER S ONLY LIABILITY SHALL BE THE REPAIR OR REPLACEMENT OF PART S AS STATED ABOVE IN NO EVENT SHALL CARRIER BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES EVEN IF SUCH DAMAGES ARE A DIRECT RESULT OF CARRIER S NEGLIGENCE Some states do not allow the exclusion or limitation of incidental or consequential dam ages so the above limitations may not apply to you This warranty gives you specific legal rights You also may have other rights that vary from state to state Part No 0G1622 Rev A 12 15 06 Catalog No OMKGATD XNS400 03 Printed in U S A
11. MERGENCY GNERATOR power source The transfer switch prevents electrical feedback between the UTILITY and EMERGENCY sources For that reason electrical codes require a transfer switch in all standby electric system installations When the transfer switch is connected to the engine generator control panel the control panel constantly monitors the UTILITY voltage and controls the opera tion of the transfer switch Should the UTILITY voltage drop below a preset value and remain at this low voltage for a preset amount of time the generator cranks and starts After the gen erator starts the transfer switch transfers the load circuits to the generator the generator then supplies the loads When UTILITY returns above a preset level the load is transferred back to the UTILITY and the generator shuts down Section 1 General Information 13 TRANSFER SWITCH DATA LABEL A DATA LABEL is permanently affixed to the transfer switch enclosure Use this transfer switch only with the specific limits shown on the DATA LABEL and on other decals and labels that may be affixed to the switch This will prevent damage to equipment and property When requesting information or ordering parts for this equipment make sure to include all information from the DATA LABEL Record the Model and Serial numbers in the space provided below for future reference 1 4 TRANSFER SWITCH ENCLOSURE The standard switch enclosure is a National Electrical M
12. NDER LOAD a CLOSE UTILITY gt SET MANUAL HANDLE ON M AND lt OPERATE IN THE DIRECTION CLOSE STANDBY gt SET MANUAL HANDLE ON M AND OPERATE IN THE DIRECTION Actuating Shaft gt 7 Attach handle to actuating shaft N UTILITY Window A UTILITY Window B STANDBY Eu ka ol a ae Move handle down OSB Se then release slowly k l to allow internal spring TSS to relax End View NOTE Return handle to storage position in enclosure when finished with manual transfer OPERATION Section 3 Operation 1 gt RTS W Type Transfer Switch 3 2 2 CLOSE TO EMERGENCY SOURCE SIDE Before proceeding verify the position of the switch by observing window B in Figure 3 1 If window B reads ON the contacts are closed in the EMERGENCY STANDBY position No further action is required If it reads OFF proceed with Step 1 Step 1 With the handle attached to the actuating shaft move the handle in the direction of the arrow on the switch cover until it stops DO NOT FORCE Release handle slowly to allow the spring in the switch box to relax OFF now appears in Window A and ON appears in Window B 3 2 3 RETURN TO NORMAL SOURCE SIDE Manually actuate switch to return Window A to the
13. RTS Automatic Transfer Switch 400A 120 240V Single phase Model No KGATX0101400 TECHNICAL MANUAL A new standard of reliability This manual should remain with the unit aaa Important Safety Instructions Read the following information carefully before attempting to install operate or service this equipment Also read the instructions and information on tags decals and labels that may be affixed to the transfer switch Replace any decal or label that is no longer legible utility shall be by means of suitable transfer equipment so as to isolate the electric system DANGER Connection of a generator to an electrical system normally supplied by an electric from utility distribution system when the generator is operating Article 701 Legally Required Standby Systems or Article 702 Optional Standby Systems as applicable Failure to isolate electric system by these means may result in damage to generator and may result in injury or death to utility workers due to backfeed of electrical energy The manufacturer cannot anticipate every possible circumstance that might involve a hazard The warn ings in this manual and on tags and decals affixed to the unit are therefore not all inclusive If using a procedure work method or operating technique the manufacturer does not specifically recommend ensure that it is safe for others Also make sure the procedure work method or operating technique uti lized does not render t
14. an accurate AC voltmeter and frequency meter check the no load voltage and frequency Single phase generator supply Measure across ATS terminal lugs E1 to E2 El to NEUTRAL and E2 to NEUTRAL Ay ErecqueB6yuuga waqaq 60 62 Hz b Terminals El 10 2 saen 240 246 VAC Terminals El to NEUTRAL 120 123 VAC d Terminals E2 to NEUTRAL 120 123 VAC 5 When certain that UTILITY supply voltage is cor rect and compatible with transfer switch ratings turn OFF the UTILITY supply to the transfer switch 6 Set the generator s main circuit breaker CB1 to its OFF or OPEN position 7 Set the AUTO OFF MANUAL switch to the OFF position to shut down the generator NOTE Do NOT proceed until generator AC output volt age and frequency are correct and within stated limits If the no load voltage is correct but no load frequency is incorrect the engine governed speed probably requires adjustment If no load frequency is correct but voltage is not the voltage regulator may require adjustment 3 4 GENERATOR TESTS UNDER LOAD 1 2 Set the generator s main circuit breaker to its OFF or OPEN position Manually actuate the transfer switch main con tacts to their EMERGENCY STANDBY position Refer to Manual Operation section To start the generator set the AUTO OFF MANUAL switch to MANUAL When engine starts let it sta bilize for a few minutes Turn the generator s ma
15. anufacturer s Association NEMA and UL 3R type UL and NEMA 3R type enclosures primarily provide a degree of protection against falling rain and sleet undamaged by the formation of ice on the enclosure 1 5 SAFE USE OF TRANSFER SWITCH Before installing operating or servicing this equip ment read the SAFETY RULES inside front cover carefully Comply strictly with all SAFETY RULES to prevent accidents and or damage to the equip ment The manufacturer recommends a copy of the SAFETY RULES are made and posted near the trans fer switch Also be sure to read all instructions and information found on tags labels and decals affixed to the equipment Two publications that outline the safe use of transfer switches are the following NFPA 70 National Electrical Code UL 1008 STANDARD FOR SAFETY AUTOMATIC TRANSFER SWITCHES NOTE It is essential to use the latest version of any stan dard to ensure correct and current information 2 1 INTRODUCTION TO INSTALLATION This equipment has been wired and tested at the factory Installing the switch includes the following procedures e Mounting the enclosure Connecting utility and generator power source leads Connecting the load leads Connecting any auxiliary contact if needed Installing connecting any options and accessories Testing functions 2 2 UNPACKING Carefully unpack the transfer switch Inspect closely for any damage that might have occur
16. at the transfer mechanism inside the switch enclosure INSTALLATION 119 Section 2 Installation RTS W Type Transfer Switch 2 4 1 2 POLE MECHANISM These switches Figure 2 1 are used with a single phase system when the single phase NEUTRAL line is to be connected to a Neutral Lug and is not to be switched Figure 2 1 Typical 2 Pole Transfer Mechanism 400 Amp Shown 2 EE 3 z J x o o o o T To o o o o o o o o o o o RAB vac Oe 600 VAC CSA o o o o o o o o o o o o o ooo o o o o o o o o o o o o o o o o o o o o _ o o o o o o o o o o oo o o o o o o o o o o o o o o o o XXXXXX OFF STANDBY 1 a J Solderless screw type terminal lugs are standard The conductor size range is as follows Switch Rating 400A Conductor sizes must be adequate to handle the max imum current to which they will be subjected based on the 75 C column of tables charts etc used to size conductors The installation must comply fully with all applicable codes standards and regulations Wire Range 1 4 600 MCM or 2 1 0 250 MCM Before connecting wiring cables to terminals remove any surfac
17. e oxides from the cable ends with a wire brush All power cables should enter the switch next to transfer mechanism terminals If ALUMINUM con ductors are used apply corrosion inhibitor to con ductors Tighten terminal lugs to the torque values as noted on the decal located on the inside of the door After tightening terminal lugs carefully wipe away any excess corrosion inhibitor All power cables should enter the switch next to the transfer mechanism terminals OPERATION Section 3 Operation a RTS W Type Transfer Switch cAUTION Use a torque wrench to tighten the conductors being sure not to overtighten or damage to the switch base could occur If undertightened a loose connection would result causing excess heat which could damage the switch base Connect power source load conductors to clearly marked transfer mechanism terminal lugs as fol lows 1 Connect UTILITY NORMAL power source cables to switch terminals N1 N2 N3 2 Connect EMERGENCY STANDBY source power cables to transfer switch terminals El E2 E3 3 Connect customer LOAD leads to switch termi nals T1 T2 T3 4 Connect neutral conductors of UTILITY EMERGENCY and customer LOAD to the neutral block Conductors must be properly supported of approved insulative qualities protected by approved conduit and of the correct wire gauge size in accordance with applicable codes Be sure to maintain proper electr
18. he transfer switch unsafe Throughout this publication and on tags and decals affixed to the generator DANGER WARNING CAUTION and NOTE blocks are used to alert person nel to special instruction about a particular operation that may be hazardous if performed incorrectly or carelessly Observe them carefully The definitions are as follows A FERE A After this heading read instructions that if not strictly complied with will result in personal injury or property damage warninc amp After this heading read instructions that if not strictly complied with may result in personal inju ry or property damage caution After this heading read instructions that if not strictly complied with could result in damage to equipment and or property NOTE After this heading read explanatory statements that require special emphasis These safety warnings cannot eliminate the hazards that they indicate Common sense and strict compli ance with the special instructions while performing the service are essential to preventing accidents Four commonly used safety symbols accompany the DANGER WARNING and CAUTION blocks The type of information each indicates follows This symbol points out important safety infor mation that if not followed could endanger personal safety and or property of others A This symbol points out potential explosion hazard This symbol points out potential fire haza
19. ical clearance between live metal parts and grounded metal Allow at least 1 2 inch for 100 400 amp circuits 2 5 CONNECTING START CIRCUIT WIRES Control system interconnections consist of UTILITY 1 and 2 and leads 23 and 194 Control system interconnection leads must be run in a conduit that is separate from the AC power lead Recommended wire gauge sizes for this wiring depends on the length of the wire as recommended below MAXIMUM WIRE LENGTH RECOMMENDED WIRE SIZE 461 to 730 feet 223m 731 to 1 160 feet 354m 1 161 to 1 850 feet 565m 2 6 AUXILIARY CONTACTS If desired there are Auxiliary Contacts on the transfer switch to operate customer accessories remote advi sory lights or remote annunciator devices A suitable power source must be connected to the COMMON C terminal See Figure 2 3 No 12 AWG Contact operation is shown in the following chart Common to Normally Open Common to Normally Closed NOTE Auxiliary Contacts are rated 10 amps at 125 or 250 volts AC DO NOT EXCEED THE RATED VOLTAGE AND CURRENT OF THE CONTACTS Figure 2 3 Auxiliary Contacts 400 amp Switches ED Auxiliary Contact Actuated Auxiliary Contact Non Actuated Side views shown in Utility position Single Contacts Common Normally Open i H Kee Normally Closed 3 1 FUNCTIONAL TESTS AND ADJUSTMENTS Following transfer switch
20. in circuit breaker to the ON or CLOSED position The generator now pow ers all LOAD circuits Check generator operation under load as follows Turn ON electrical loads to the full rated watt age amperage capacity of the generator DO NOT OVERLOAD With maximum rated load applied check voltage and frequency across transfer switch terminals El and E2 Voltage should be greater than 200 volts 208VAC system or 230 volts 240VAC system frequency should be greater than 59 Hz Let the generator run under rated load for at least 30 minutes With unit running listen for unusual noises vibration overheating etc that might indicate a problem Section 3 Operation OPERATION RTS W Type Transfer Switch When checkout under load 15 complete set main circuit breaker of the generator to the OFF or OPEN position Let the generator run at no load for several min utes Then shut down by setting the AUTO OFF MANUAL switch to its OFF position Move the switch s main contacts back to the UTILITY position For example load connected to utility power supply Refer to Manual Operation Handle and operating lever of transfer switch should be in down position Turn on the utility power supply to transfer switch using whatever means provided such as a utility main line circuit breaker The utility power source now powers the loads Set the generator s AUTO OFF MANUAL switch to its AUTO position The syste
21. m is now set for fully automatic operation Section 4 Installation Diagram Installation Diagram Drawing No 0F6401 RTS W Type Transfer Switch INSTALLATION S39V1d LINGNOO 06 SZ at HOS 318v1InS 03 31dii1 001 52 ast lt 0 rz ww9 609 6 1 2 809 e igluuurp6z 198 16 9393 4 1920 9 9 9 7 SATOH ONILNNOW J f 72 19 2 6 wwzgy Section 5 Electrical Data v z Nn ln u n z o q q a o 9 Z bo S z g a E bo M a Q q 4 ELECTRICAL DATA T3NVd NOILNSIMLSIC 89 AION 8 QVO YAWOLSND F LL zl Il 1 1 24 1 23 3 23 3 gi M EZEREHERI r razan mi magma oJ an Ifin HOLIMS 345 1 SLINGNOD 41 383440
22. rd This symbol points out potential electrical shock hazard ZA GENERAL HAZARDS Any AC generator that is used for backup power if a NORMAL UTILITY power source failure occurs must be isolated from the NORMAL UTILITY power source by means of an approved transfer switch Failure to properly isolate the NORMAL and STANDBY power sources from each other may result in injury or death to electric utility workers due to backfeed of electrical energy Improper or unauthorized installation operation service or repair of the equipment is extremely dangerous and may result in death serious per sonal injury or damage to equipment and or per sonal property Extremely high and dangerous power voltages are present inside an installed transfer switch Any contact with high voltage terminals contacts or wires will result in extremely hazardous and pos sibly LETHAL electric shock DO NOT WORK ON THE TRANSFER SWITCH UNTIL ALL POWER VOLTAGE SUPPLIES TO THE SWITCH HAVE BEEN POSITIVELY TURNED OFF Competent qualified personnel should install operate and service this equipment Adhere strictly to local state and national electrical and building codes When using this equipment comply with regulations the National Electrical Code NEC CSA Standard C22 1 Canadian Electric Code and Occupational Safety and Health Administration OSHA have established Never handle any kind of electrical device while standing in water while barefoot
23. red during ship ment The purchaser must file with the carrier any claims for loss or damage incurred while in transit Check that all packing material is completely removed from the switch prior to installation 2 3 MOUNTING Mounting dimensions for the transfer switch enclo sure are in this manual Enclosures are typically wall mounted See the Mounting Dimensions drawing caution amp Handle transfer switches carefully when install ing Do not drop the switch Protect the switch against impact at all times and against construc tion grit and metal chips Never install a transfer switch that has been damaged Install the transfer switch as close as possible to the electrical loads that are to be connected to it Mount the switch vertically to a rigid supporting structure To prevent switch distortion level all mounting points If necessary use washers behind mounting holes to level the unit 2 4 CONNECTING POWER SOURCE AND LOAD LINES A DIG A AN Make sure to turn OFF both the UTILITY Normal and EMERGENCY Standby generator power supplies before trying to connect power source and load lines to the transfer switch Supply voltages are extremely high and danger ous Contact with such high voltage power sup ply lines causes extremely hazardous possibly lethal electrical shock Wiring diagrams and electrical schematics are pro vided in this manual Power source and load connec tions are made
24. rving display windows in A and B in Figure 3 1 on page 6 as follows Window A ON Window B OFF LOAD termi nals T1 T2 T3 are connected to utility termi nals N1 N2 N3 Section 3 Operation OPERATION RTS W Type Transfer Switch 11 Window A OFF Window B ON LOAD termi nals T1 T2 T3 are connected to emergency terminals El E2 E3 caution amp Do not use excessive force when operating the transfer switch manually or the manual handle could be damaged 3 2 1 CLOSE TO NORMAL SOURCE SIDE Before proceeding verify the position of the switch by observing window A in Figure 3 1 If window A reads ON the contacts are closed in the normal position no further action is required If it reads OFF proceed with Step 1 Step 1 With the handle attached to the actuating shaft move handle in the direction of the arrow on the switch cover until it stops DO NOT FORCE Release handle slowly to allow the spring in the switch box to relax ON now appears in Window A and OFF appears in Window B Figure 3 1 Actuating Transfer Switch Disconnect transfer switch from all power sources DANGER Do NOT manually transfer under load by approved means such as a main circuit breaker s Detail of instructions printed on transfer switch MANUAL OPERATION 4 DO NOT OPERATE WHILE THE SWITCH IS U
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