ELTS2 Installation and User Operation Manual RevC 2007
Contents
1. BS 2 OO 5 THREE PHASE SINGLE PHASE Type M ELTS2 units manufactured for Three Phase are factory wired with phase balanced emergency mains distribution OA B OC to fuses Type M ELTS2 units manufactured for Single Phase are factory wired with phase balanced emergency mains distribution and C to the integral branch circuit protection or fuses i LJ Lu Step 1 Pull the emergency power cables to the phase lugs Step 2 Strip each conductor back 5 8 for the large unit or 7 16 back for the small unit Step 3 Connect phase mains input wires as illustrated in the graphics above for either single phase or three phase operation as ordered Step 4 Connect the neutral cable to the neutral lug Step 5 Connect the ground cable to the ground lug Step 6 Torque the connections to the correct values using the table below Enclosure size Phase Lugs Accept Piesa rugs reU Ep Torque Accepts Torque Small 2 12 circuits 2 0 14 AWG 160 in lbs 2 0 14 AWG 120 in Ibs Large 2 24 circuits 350MCM 6 AWG 375 in lbs 2 0 14 AWG 120 in Ibs A CAUTION Factory wiring may loosen during transit Check each of the mains power distribution terminal blocks to ensure the factory wiring to the transfer switches remain se2. Emergency input to switches contactors factory wiring Load output wiring from contactorstofusesand 4 Bias emergency load output M eria tp IL Emergency Load DER CU EE DET Output from ELTS2 to normal emergency lighting loads Note Do not pull individual circuit ground wires through the ELTS2 unit as ground lugs are not provided ETC recommends pulling circuits through grounded metal conduit or providing other means of grounding each circuit The normal sense feeds may enter the enclosure from the top left corner or top left side of the enclosure Normal sense from the source must connect to external 10A circuit breaker first provided by others then pulled through conduit to the ELTS2 control board See Sense Feed Requirements on page 9 ELTS2 units manufactured for 277 VAC operation include two transformers one for Normal Mode operation and one for Emergency Mode operation Normal phase A and neutral sense feed wiring connect at the transformer instead of the control electronics board Normal phase B and phase C sense feeds connect at the control board Low Voltage Class 2 conductors for remote stations and the fire alarm contact input should enter the
3. 30 Fire Al rm Test kao ie ets date tace E d Rhet e d 31 Manual 31 SCNVICE NE RA D EAE ARD AUN ge Eod 32 Preventive Maintenance 32 Replacement Parts 32 Replacement FUSE o eroien n a ee E Er 32 Replacement Door 32 Replacement Local Station 32 Side Mount Hardware Installation 33 Overview 33 aum iat ne Gus a aaia arti a RO Re Ree 33 ELTS2 Installation and User Operation Manual Introduction Welcome to the Emergency Lighting Transfer System ELTS2 Installation and User Operation Manual This manual contains the procedures for safe and efficient installation and user operation of the UL 1008 listed Emergency Lighting Transfer System Using this Manual This manual is divided into three sections Section 1 Introduction and Product Overview Section 2 Installation Procedure and Power Up and Check System Section 3 Operation and How the ELTS2 Works Codes and Standards The ELTS meets or exceeds the following regulatory standards for emergency lighting transfer devices Introduction Full UL and cUL Listing and Approval for emergency transfer ANSI UL 1008 Transfer Switch Equipment UL Fi
4. Required conduit entry for normal sense feed input remote station data termination and fire alarm contact input Conduit entry for normal load input from dimmer rack or branch circuit breaker panel Transformers on 277 VAC units only Conduit entry for emergency mains feed only Earth ground Conduit entry for normal load input from dimmer rack or branch circuit breaker panel 12 Conduit entry for load output from ELTS2 to emergency lighting loads ELTS2 Installation and User Operation Manual Installation Procedure Determine the Installation Location Locate the ELTS2 unit in a location where it will not be subject to tampering or vandalism If possible install the ELTS2 where it is most secure from damage by a fire flood or other incident likely to require its use The ELTS2 unit should be supported by a wall strong enough to hold the enclosure fully loaded with transfer switches Reference Clearance page 7 for product weight dimensions and clearance requirements After determining the installation location for your ELTS2 unit follow the instructions outlined below to install the mounting hardware Install Mounting Hardware Installation of the mount
5. wiRING s ic H THis NEUTRAL IS FACTORY WIRED NORMAL NORMAL NEUTRAL SENSE CONTRACTOR WIRING ay 1 Sense FEED IE XFORMER Norma PHASE SENSE CONTRACTOR WIRING e ca Step 3 Connect the wires as illustrated in the graphic above Step 4 Pull the normal phase B and phase C sense wires to the control board and strip the conductors back 3 8 Step 5 Connect the wires as illustrated in the graphic above Step 6 Reference Cable Specification and Conduit Access page 11 for the terminal torque rating on each connection Connect Fire Alarm and Remote Station Wiring Locate J3 on the control electronics board This two position screw terminal is the connection point for the dry contact input of the Fire Alarm system When no contact input is required leave the factory installed jumper in the terminal to maintain a closed circuit contact Locate J2 on the control electronics board This five position screw terminal is the connection point for the remote key switch station data wires J1 on the control electronics board is the ribbon cable connection for the local key switch station on the door of the ELTS2 unit This connection is made for you at the factory Connect Fire Alarm Wiring To Loca KeyswitcH STATION 5 16 AWG oN 24V DC Cass 2 2 16 AWG CLASS 2 DRY CONTACT INPUT
6. 7 Clearance usse ea b ve A TUUS Oe DR e 7 Electrical 8 Sense Feed Requirements 9 Normal Sense Feed 9 Transfer Switch Specification 9 Verify Contents of the Shipping Carton 10 Parts and Specialty Tools Required 10 Cable Specification and Conduit Access 11 Type D Discrete Feed Cable Specification and Conduit Access 11 Type M Main Feed Cable Specification and Conduit Access 12 Installation 13 Determine the Installation Location 13 Install Mounting 13 Install NEMA 1 14 Install NEMA 4 14 Rough In Conduit and 15 Rough In Conduit and Cable for Type D Discrete Feed Unit 15 Rough In Conduit and Cable for Type M Main Feed Unit 16 Connect Emergency Discrete Inputs for Type D Unit 17 Connect Emergency Discrete Input Wires to the Terminal Strip17 Connect Emergency Mains for Type M Unit 18 Connect Mains 18 Connect Wiring 2 lle 19 Connect Normal Input Wire
7. Test the automatic function of the ELTS2 to ensure its ability to switch from normal to emergency power when normal power is interrupted and back again when it is restored Step 1 Step 2 Check the Normal Mode LED on the local station of the ELTS2 is illuminated Turn off normal power to the dimmer rack or circuit breaker panel connected to the ELTS2 Normal Mode LED on the local station of the ELTS2 will deactivate The ELTS2 switches to emergency power the Emergency Mode LED illuminates and all connected loads will illuminate to full bright There will be a short delay between the transfer of normal power to emergency power This delay is user adjustable on dip switches and allows the user to delay the transfer for a period of time when the emergency source is on and stable See Normal to Emergency Transfer Delay on page 29 Step 3 Restore normal power Emergency Mode LED on the local station of the ELTS2 will deactivate The ELTS2 switches to normal power the Normal Mode LED illuminates and all connected loads will resume normal operation There will be a short delay between the transfer of emergency power to normal power This delay is user adjustable on dip switches and allows the user to delay the transfer for a period of time when the normal source is on and stable See Emergency to Normal Transfer Delay on page 29 1 Installation 25 26 ELTS2 Installation and Use
8. Definitions break before make a switch that is configured to break open the first set of contacts before engaging closing the new contacts This prevents the momentary connection of both the normal and emergency feeds at the same time emergency feed the power feed connected to the ELTS2 that is derived from the emergency source generator inverter or second utility Emergency Mode the contactors are switched to a state where the load is connected to the emergency feed emergency sense feed wires carrying voltage and frequency from Phase A of the emergency source to the ELTS2 control electronics board for transfer switch operation in Emergency Mode This connection is wired for you at the factory enclosure refers to the ELTS2 cabinet with locking door only local station the key switch station with status indicators on the front of the ELTS2 unit locking door normal feed the power feed connected to the ELTS2 that is derived from the normal service Normal Mode the contactors are switched to a state where the load is connected to the normal feed normal sense feed wires carrying voltage and frequency from the normal source to the ELTS2 control electronics board for transfer switch operation in Normal Mode This feed is provided by the installing electrical contractor power fail when a phase of the normal power feed connected to the ELTS2 falls to below the specified voltage for that phase for the pres
9. Operation Manual Rough In Conduit and Cable WARNING To prevent death or serious injury due to electrical shock normal utility and emergency alternate power supplies must be turned off prior to connecting power source and load lines to the ELTS2 unit Requirements for installation vary depending on the type of ELTS2 in your installation type D Discrete Feed or type M Main Feed Reference page 11 and page 12 for specification of cable and conduit access requirements for each ELTS2 type Rough In Conduit and Cable for Type D Discrete Feed Unit Sense Feeds from sense circuit breaker phase A B C and neutral Class 2 conductors from remote station amp fire alarm contact input Normal discrete feeds from dimmer rack or normal panel to the input side of transfer The discrete feed ELTS2 is designed for emergency systems where 20A emergency branch circuits hot and neutral conductors only are fed to the discrete emergency branch circuit terminal strip Normal 20A circuits hot and neutral conductors only typically fed from an adjacent dimmer rack or circuit breaker panel are wired directly to the normal input side of transfer switch assembly Each normal and emergency circuit to the ELTS2 must have branch circuit protection external of the ELTS2 unit Emergency discrete feeds from emergency branch panel to the terminal strip
10. Phase B N Phase N PHASE A Bi e deat mgUs N PuasE A eeN NEUTRAL N NEUTRAL EETA ll 8 us N NEUTRAL o 20 ELTS2 Installation and User Operation Manual Connect 277 VAC Sense Power Wiring Note Connect normal sense wires from the source to an external circuit breaker first then pull the sense wires from the external circuit breaker through conduit to the ELTS2 Reference Sense Feed Requirements page 9 for installation requirements Step 1 Locate the two transformers on the top of the ELTS2 sub panel Step 2 Pull the normal phase A and neutral sense wire to the right side of the transformers and strip the conductors back 3 8 Factory CoNTRACTOR WIRING THIS SIDE WIRING THIS SIDE co EXCEPTIONS NOTED Emercency 0 EuenGENCY NEUTRAL SENSE FACTORY WIRING Sense Feen l XFORMER Emercency PHASE SENSE FACTORY WIRING o amp NoRMAL PHASE C SENSE CONTRACTOR WIRING Norma PHAsE B SENSE
11. User Operation Manual Adjust the Power Transfer Delays Use a sharp point such as a pick or jewelers screwdriver to move the switches into the correct On or Off position Normal to Emergency Transfer Delay Labeled N E delay S1 on the control electronics board This switch configures the delay time between loss of normal power and the transfer to emergency power when emergency power is stable Normal to emergency power delay is adjustable from 0 10 seconds and applies to any transfer type including fire alarm manual test and loss of power Delay seconds Switch 1 Switch 2 Switch 3 Switch 4 Switch 5 Switch 6 Emergency to Normal Transfer Delay Labeled E N delay 52 on the control electronics board This switch configures the delay time between the transfer from emergency power back to normal power when normal power is stable Emergency to normal power delay is adjustable from 0 60 seconds applies to any transfer type including fire alarm manual test and loss of power Delay seconds Switch 1 Switch 2 Switch 3 Switch 4 Switch 5 Switch 6 170 ms OFF OFF OFF OFF OFF ON 2 OFF OFF OFF ON ON OFF 5 OFF OFF OFF OFF ON OFF 10 OFF OFF ON ON OFF OFF 15 OFF OFF OFF
12. qualified personnel using EXTREME CAUTION Opening the cabinet with power applied exposes you to death or severe injury from high voltage electrical shock Step 1 Open the ELTS2 door T i Ta N Prase B N NEUTRAL RIBBON CABLE FOR DATA TO LOCAL KEYSWITCH STATION ERE 3m 5 16 AWG 24V DC Cass 2 2 16 AWG AAS CLAss 2 DRY CONTACT INPUT Step 2 Step 3 Measure the sense feed voltage at the emergency power sense feed terminal blocks phase A and neutral on the control electronics board Voltage should be within 10 percent of the rated voltage of the ELTS2 unit 120 VAC or 277 VAC Measure the sense feed voltage at the normal power sense feed terminal blocks Voltage should be within 10 percent of the rated voltage for the ELTS2 unit 120 VAC or 277 VAC Measure between phase A and neutral b Measure between phase B and neutral c Measure between phase C and neutral EH Installation 23 Step 4 Step 5 Step 6 Measure the feed input of a mains feed ELTS2 Phase lugs are located in the upper right side of the ELTS2 unit and are clearly labeled A B C N and ground THREE PHASE e Check voltage across phase and neutral Voltage values must be within 10 percent of the rated voltage for the ELTS2 unit Measure each of the transfer switch norma
13. two to twenty four 20 amp circuits of emergency AC lighting loads The ELTS2 is available with optional discrete Type D emergency branch circuit feeds from an external circuit breaker panel by others or emergency main feed Type M with built in branch circuit distribution As shown ELTS2 1 D 277 24 As shown ELTS2 1 M 3P 12 Large NEMA 1 cabinet with 24 Discrete Small NEMA 1 cabinet with Main feed and 12 emergency circuits emergency circuits Each transfer switch is comprised of a pair of contactors one for two 20A circuits of normal inputs and one for two 20A circuits of emergency inputs The two contactors in the assembly are connected by a mechanical interlock in a manner that ensures the circuits break from normal power before making the transfer to emergency power and vice versa Introduction 3 Type D Discrete Feed Overview Type D ELTS2 units each 20A emergency circuit hot and neutral conductors are independently fed from an adjacent emergency branch circuit breaker panel by others Normal 20A circuits are fed from an adjacent dimmer rack or branch circuit panel Normal sense power wiring must be run via an external 10A circuit breaker NoRMAL ONLY LIGHTING Loaps NoRMAL EMERGENCY LIGHTING LOADS b NoRMAL SENSE 2 16 AWG 1 oR Cass 2 via 10A DRY CONTACT INPUT ee OTHERSI EMERGENCY LIGHTING Erde AE EMERGENCY Circuit FEEDS i LL 5
14. units are manufactured with two transformers which are used to step down voltage to the control electronics board Maximum Input Current Ratings 480 amps for the large unit fully loaded with 24 20A emergency circuits 160 amps per phase in a three phase configuration 240 amps per leg when configured for single phase 240 amps for the small unit fully loaded with 12 20A emergency circuits 80 amps per phase in a three phase configuration 120 amps per leg when configured for single phase Branch circuit protection e ELTS2 units utilize built in 20A fuses for branch circuit protection Built in fuses provide 65 000A Short Circuit Current Rating SCCR and insure compliance with NEC Section 700 27 Coordination Larger upstream breakers cannot be tripped by downstream circuit faults e ELTS2 20A circuits are rated for a maximum continuous load of 1920 watts per circuit at 120 VAC and 4432 watts per circuit at 277 VAC This equipment should be installed and wired by a qualified electrician Always follow applicable building and electrical codes when installing this equipment If you are not certain if your installation complies with local or national codes contact your local building inspector Service by qualified personnel only ELTS2 Installation and User Operation Manual Lat Installation Sense Feed Requirements Normal Sense Feed Requirements Normal sense feed requirements vary depending on the i
15. 16AWG 24 Ciass2 BRANCH a PANEL ELTS EMERGENCY LIGHTING REMOTE TRANSFER SYSTEM STATIONS D Discrete FEED SENSE FEED M Nema 1 ENCLOSURE BY OTHERS Normat Power EMERGENCY F OWER uU Source GENERATOR INVERTER OR UTILITY Note The sense feed power consumption is essentially none Type M Main Feed Overview Type M ELTS2 units emergency mains are connected to phase lugs within the unit Mains power is distributed through factory wiring to built in branch circuit distribution and overcurrent protection Normal 20A circuits are fed from an adjacent dimmer rack or branch circuit panel Normal sense power wiring must be run via an external 10A circuit breaker NoRMAL ONLY LIGHTING LoADS NORMAL EMERGENCY LIGHTING LoADS 2 16 AWG Crass 2 DRY CONTACT INPUT DIMMER OUTPUT TO NORMAL 5 16 AWG EMERGENCY LIGHTING LOADS OR NoRMAL SENSE PAS 1 307 amp N i via 10A ELTS EMERGENCY LIGHTING REMOTE BREAKER CIRCUIT BREAKER STATIONS TRANSFER SYSTEM PANEL o M Man FEED NEMA 4 EncLosuRE NoRMAL PowER Source EMERGENCY PowER Source GENERATOR INVERTER OR SECOND UTILITY ELTS2 Installation and User Operation Manual Standard Features Introduction The ELTS2 has a highl
16. 31 25 Step 1 Step 2 Step 3 Step 4 Step 5 Using the measurements provided pre drill and install two 3 8 mounting bolts for the lower two support keyhole slots Using the measurements provided pre drill the holes for the top two 3 8 mounting bolts Rest the enclosure on the wall supported by the lower two mounting bolts installed in Step 1 Secure the enclosure to the wall with the top two mounting bolts Check that the enclosure is plumb and secure to the wall Strictly follow all local code restrictions Note Use watertight conduit hubs or equivalent provision for watertight connection at the conduit entrance to maintain the integrity of the NEMA 4 enclosure CAUTION ELTS2 units are heavy Be sure you have proper equipment or assistance to lift the unit into place and support it while securing the mounting hardware Large 28 5 Small 22 5 Large 49 56 Small 37 56 NEMA 4 enclosure om Step 1 Step 2 Step 3 Step 4 Using the measurements provided pre drill the holes for the bottom two 3 8 mounting bolts Align the enclosure to the wall and install the two 3 8 mounting bolts for the lower mounting support tabs Install the two 3 8 mounting bolts for the top two mounting support tabs Check that the enclosure is plumb and secure to the wall Strictly follow all local code restrictions ELTS2 Installation and User
17. A jumper cable is installed in the fire alarm contact input of the ELTS2 when the unit is manufactured This jumper cable maintains the closed contact input if no fire alarm contact input is installed Remove this jumper wire only to replace it with dry contact input wiring from the fire alarm system Step 1 Step 2 Locate the two position screw terminal J3 on the control electronics board Pull the fire alarm dry contact input wires required to the terminal Installation 21 Step 3 Strip the conductors back 3 8 Step 4 Loosen the screws enough to remove the jumper cable from the terminal Step 5 Insert the wires one per position in the terminal and secure Connect Remote Station Wiring Recommended installation is that the remote key switch stations are installed with wiring in parallel between remote station terminal blocks You may terminate up to two remote key Switch station data runs to the control electronics board Remote station wiring is accomplished using a parallel topology You must know the wire assignment used at the remote station being connected for proper connection to the ELTS2 22 Step 1 Locate the five position screw terminal J2 on the control electronic board Step 2 Pull the remote station wiring required to the terminal Step 3 Strip the conductors back 3 8 Step4 Insert the wires as follows Position 1 24V Common Position 2 Normal Switch Position 3 Emergency Switch Posi
18. Discrete Input Wires to the Terminal Strip Discrete ELTS2 systems require external distribution and overload protection circuit breaker for each 20A circuit Step 1 Step 2 Locate the input side of the emergency discrete feed terminal strip Pull the emergency hot and neutral wires to the terminal strip from the branch circuit panel Each terminal is clearly labeled with circuit designations Strip back each conductors sheathing 9 16 Connect circuit 1 s emergency hot wire to the terminal strip beginning with the terminal labeled 1 L a Align a 5mm 3 16 slotted screwdriver with the top of the terminal and press down firmly until the terminal gate opens b Insert the proper wire into the terminal and remove the screwdriver The wire will hold securely in place Connect circuit 1 s emergency neutral wire to the terminal strip beginning with the terminal labeled EM1 a Align a 5mm 3 16 slotted screwdriver with the top of the terminal and press down firmly until the terminal gate opens b Insert the proper wire into the terminal and remove the screwdriver The wire will hold securely in place Repeat steps 1 through 5 for all emergency discrete feeds A CAUTION Care should be taken to ensure you are not inserting the wire sheathing into the terminal strip al Installation Connect Emergency Mains for Type M Unit Connect Mains Feed
19. Emergency Lighting Transfer System ELTS2 Installation and User Operation Manual Revision C Copyright Electronic Theatre Controls Inc All Rights reserved Product information and specifications subject to change Part Number 1096M1200 Rev C Released 09 2007 isa registered trademark of Electronic Theatre Controls Inc in the United States and other countries All other trademarks both marked and not marked are the property of their respective owners Table of Contents Table of Contents 1 Using this 1 Codes and Standards 1 Contacting ETC 3 9 d 4 2 Warnings and Notice Conventions 2 Product 3 Type D Discrete Feed 4 M Main Feed Overview 4 Standard 5 Product Variants 6 Definitions lena RE RA ERG GREAT IA EEG 6 7 Installation 7 Installation Environment
20. ON OFF OFF 20 OFF ON ON OFF OFF OFF 25 OFF OFF ON OFF OFF OFF 30 ON ON OFF OFF OFF OFF 40 OFF ON OFF OFF OFF OFF 50 ON OFF OFF OFF OFF OFF 60 OFF OFF OFF OFF OFF OFF 2 Operation 29 Test Procedure Green LED indicator when the normal power source is in use Red LED indicator when the ELTS2 receives a fire alarm activation Fire ALARM Normat Emercency Mope Red LED indicator when the emergency power source is in use Key switch selects which mode the ELTS2 will operate normal emergency or Auto Auro NonMAL I EMERGENCY Power Power Local and Remote Key Switch Test Local and remote stations are provided as a tool for use during system test and maintenance Each station type operate identical of each other except the local station has a higher control priority to the remote stations Use the local and remote key switch stations to simulate the loss of normal power and to test the system s transfer of emergency lighting loads from the normal power source to the emergency power source if stable emergency power is present Step 1 Insert the key into the local key switch station on the front of the ELTS2 unit or the remote station A CAUTION It is important to understand that use of the local and remote key switch stations switched to emergency power are only a simulation of normal power loss To retum the unit to normal operating mode you must switch the key swit
21. Side Mount Hardware Installation 33 34 ELTS2 Installation and User Operation Manual Corporate Headquarters 3031 Pleasant View Road Box 620979 Middleton Wisconsin 53562 0979 USA Tel 608 831 4116 Fax 608 836 1736 London UK Unit 26 28 Victoria Industrial Estate Victoria Road London W3 6UU UK Tel 44 0 20 8896 1000 m Fax 44 0 20 8896 2000 Rome IT Via Ennio Quirino Visconti 11 00193 Rome Italy Tel 39 06 32 111 683 Fax 39 06 32 656 990 Holzkirchen DE Ohmstrasse 3 83607 Holzkirchen Germany Tel 49 80 24 47 00 0 Fax 49 80 24 47 00 3 00 Hong Kong Room 1801 18 F Tower 1 Phase 1 Enterprise Square 9 Sheung Yuet Road Kowloon Bay Kowloon Hong Kong m Tel 852 2799 1220 n Fax 852 2799 9325 Service Americas service etcconnect com UK service etceurope com DE techserv hoki etcconnect com Asia service etcasia com Web www etcconnect com Copyright 2007 ETC All Rights Reserved Product information and specifications subject to change 1096M1200 m Rev C m Released 09 2007
22. are factory wired to the overcurrent protection fuses located at the bottom of the ELTS2 then to the emergency load output terminal block for customer termination The transfer switches are rated for mixed loads consisting of resistive tungsten and discharge lamps Verify Contents of the Shipping Carton Before you begin installation check your shipment for physical damage that may have occurred during transit If you discover damage be sure to document it to help with the claim to your shipper Unpack your order and check the contents against the packing list to be sure your order is complete Open the ELTS2 enclosure door and check for loose connections or broken components caused by shipping vibration If you discover a problem contact ETC at 608 831 4116 or toll free 800 688 4116 Parts and Specialty Tools Required Required mounting hardware not supplied by ETC 4 each 3 8 bolts or screws 2 4 long wall anchors are suggested Required 1 10A external circuit breaker not supplied by ETC for normal sensing wires This breaker may be 1 2 or 3 pole depending on the power source ELTS2 Installation and User Operation Manual Cable Specification and Conduit Access All Class 2 low voltage wiring is required to enter the unit in the top left conduit entry access point Do not run the Class 2 wires in the same conduit as sense phase or load power wiring Note Type D Discrete Fe
23. ch to normal power Once switched to normal power if normal power is present the lighting loads will switch to operate under normal source power and the Normal Mode indicator will light The Emergency Mode indicator will deactivate Step 2 the key to emergency power The red Emergency Mode LED will light and all emergency lighting loads will transfer to emergency power and illuminate to full bright Note There will be a short delay between the transfer of normal power to emergency power This delay is user adjustable on dip switches and allows the user to delay the transfer for a period of time when the emergency source is on and stable See Normal to Emergency Transfer Delay on page 29 key switch is momentary and returns to Auto when released Emergency Mode is still the forced mode of operation and will remain such until the key switch is forced to normal power again Step 3 Turn the key to the normal power The green Normal Mode LED will light All emergency lighting loads will transfer to normal power and normal operation resumes Note There will be a short delay between the transfer of emergency power to normal power This delay is user adjustable on dip switches and allows the user to delay the transfer for a period of time when the normal source is on and stable See Emergency to Normal Transfer Delay on page 29 key switch is momentary and returns to Auto when released No
24. cure after transport 18 ELTS2 Installation and User Operation Manual Connect Wiring Connect Normal Input Wires to the Transfer Switch ELTS2 systems require external distribution and overload protection circuit breaker for each 20 circuit Step 1 Step 2 Step 3 Step 4 Step 5 Locate the input side of the transfer switch assembly Each terminal is clearly labeled with circuit designations Pull the normal discrete hot and neutral wires to the transfer switch input side Termination is available for two normal 20A circuits per transfer switch Strip back each conductor 3 8 Insert each wire into the appropriate terminal and secure Repeat for the remaining normal circuits in the ELTS2 Connect Load Output Wires to the Terminal Strip Step 1 Step 2 Step 3 Step 4 Lat Installation 1 2 Locate the emergency load output terminal strip beneath the fuses Each terminal is clearly labeled with circuit designations Pull hot and neutral load wires for emergency circuit 1 to the terminal strip Strip back each conductor 9 16 Connect the emergency lighting load hot wire for circuit 1 a Align a 5mm 3 16 slotted screwdriver with the top of the terminal and press down firmly until the terminal gate opens b Insertthe proper wire into the terminal and remove the screwdriver The wire will hold securely in place Step 5 Connect the
25. ed Cable Specification and Conduit Access Connection Purpose Terminal Accepts Torque Notes 20A circuit from a normal source dimmer rack or circuit 12 8 AWG 16 in lbs Line and neutral conductors only No ground breaker panel to the transfer switch lugs provided in the ELTS2 20A discrete emergency branch circuit breaker feed Line and neutral conductors only No ground 12 8 AWG ae input lugs provided in the ELTS2 Emergency lighting load output terminal strip 22 8 AWG 1 normal sense feed single phase orthree phase Normal power sense must connect to the must match normal power feeds neutral ELTS2 through an external 10A circuit 20 6 ANG breaker Reference Sense Feed Requirements page 9 for details 22 10AWG Fire Alarm dry contact input 2 conductor Class 2 normally closed dry contact input 22 12 AWG Remote Stations 5 conductor nee ia system typically 24Vdc Class 2 Required conduit entry for normal sense feed remote station data termination and fire alarm contact input Conduit entry for normal load input from dimmer rack or branch circuit breaker panel Lat Installation transformers on 277 VAC units only Os TEEFEFEFEFEEEEEEEFEE ERE C
26. emergency lighting load neutral wire for circuit 1 a Align a 5mm 3 16 slotted screwdriver with the top of the terminal and press down firmly until the terminal gate opens b Insertthe proper wire into the terminal and remove the screwdriver The wire is held securely in place Step 6 Repeat steps 1 5 for the remaining emergency lighting loads in the ELTS2 unit Connect 120 VAC Sense Power Wiring p Note Connect normal sense wires from the source to an external circuit breaker first then pull the sense wires from the external circuit breaker through conduit to the ELTS2 Reference Sense Feed Requirements page 9 for installation requirements Step 1 Locate the control electronics board on the top left side of the ELTS2 enclosure Step 2 Pull the normal sense wires to the right side of the control electronics board Step 3 Strip the conductors back 3 8 Step 4 Connect wires to the control electronics reference graphics below for indication of termination location 3 4 Wire Installation 1 3 Wire Installation 1 2 Wire Installation Gir _ o m E NEUTRAL FACTORY WIRING j E E NEUTRAL FACTORY WIRING E PHASE A FACTORY WIRING PHASE FACTORY WIRING OG m E NEUTRAL FACTORY WIRING E PHASE A FACTORY WIRING ipo E pope E N N Phase T N Phase N Prase B xr E um sz lo N
27. enclosure from the top left or top left side of the unit Installation 15 Rough In Conduit and Cable for Type M Main Feed Unit The main feed ELTS2 is designed for systems where emergency mains are connected to phase lugs within the ELTS2 unit Mains power is distributed to the transfer switches then to fuses which provide branch circuit protection Note Top conduit connections for mains feed are recommended to reduce the cable bending necessary to connect to the power lugs Sense Feeds from sense C and neutral circuit breaker phase A B po Class 2 conductors from remote station amp fire alarm contact input Emergency Load Output from ti ui Emergency Main Feed 1 120 240 VAC cond gnd 30 208Y 120 VAC 4 cond gnd gl BAT 3 277 480 VAC 4 cond gnd Normal discrete feeds from dimmer rack or normal panel to the input side of transfer switches Emergency input to contactors j Load output wiring from contactors to fuses and emergency load output terminal strip t factory wiring ELTS2 to normal emergency lighting loads Normal 20A circuits hot and neutral conductors only typ
28. eplacement door key NEMA 1 Enclosure Type request ETC Part HW8152 NEMA 4 Enclosure Type request ETC Part HW8376 Replacement Local Station Key Contact ETC Technical Services or your local ETC Service Center for a replacement local station key Request ETC Part S203 ELTS2 Installation and User Operation Manual Appendix Side Mount Hardware Installation Overview By default ETC ships the ELTS2 NEMA 1 type unit with top and bottom mounting brackets installed This document contains instructions for installing the optional side mounting hardware kit ETC part number 1096K1001 to the ELTS2 cabinet Procedure Step 1 Locate and remove the existing top bottom mounting brackets and hardware Step 2 Locate the new side mounting hardware kit which includes four brackets two of each kind pictured in the graphic below 6l The brackets with full keyholes mount to the top sides of the cabinet The brackets with slotted keyholes mount to the bottom sides of the cabinet Step 3 Use the nuts previously removed in Step 1 to secure the new brackets onto the enclosure as indicated in the graphic below The subpanel has been removed from this graphic for clarity of hardware installation Step 4 Tighten the nuts onto the threads for a secure installation Reference the ELTS2 Installation and User Operation Manual 1096M1200 for detailed instructions to install your ELTS2 EY
29. estored the transfer switches return to the state previous to the power loss A transfer switch consists of a pair of contactors one for normal inputs and one for emergency inputs Each contactor provides connection for line and neutral of two 20A circuits on the input side Thetwo contactors in the assembly are connected by a mechanical interlock which ensures the circuits break from normal power before making the transfer to emergency power Transfer Switches are rated for any mix of loads including tungsten fluorescent and discharge lamps In general terms resistive capacitive and inductive loads Transfer Switches are rated for 6 000 cycles at full tungsten load Product Variants The ELTS2 is a factory configured product Enclosure Emergency Feed Type Inputs ELTS2 Voltage Options Circuits 120 120 VAC circuits 20A 277 277 circuits 20A 1 1 2 12for small enclosure 4 NEMA 4 208140 2 24 for large enclosure Type M Mains Feed 1P 120 240 VAC 10 3 wire 277 277 480 VAC 30 4 wire Type D Discrete Feeds ELTS2 Note Do not mix voltages within the ELTS2 unit The number of circuits ordered determines the size of enclosure provided Circuits are available only in multiples of two Small enclosure limited to 2 12 20A transfer switches Large enclosure limited to 2 24 20A transfer switches
30. et amount of time During a power fail the ELTS2 will transfer all connected lighting loads to the alternate power source when it is available and stable remote station a key switch station that is located in a remote location from the ELTS2 unit sub panel the interior panel of the ELTS2 unit including the electronics and transfer Switches Unit refers to the entire ELTS2 including the cabinet with locking door and sub panel ELTS2 Installation and User Operation Manual Section 1 Installation Installation Requirements Locate the ELTS2 unit in a location where it will not be subject to tampering or vandalism If possible install the ELTS2 where it is most secure from damage by a fire flood or other incident likely to require its use For proper operation of your ELTS2 unit be sure the intended installation conforms to the following environmental and electrical specifications Installation Environment 0 40 C 32 104 F ambient temperature dry room 30 9096 humidity non condensing Dust free e The ELTS2 unit should be supported by a wall strong enough to hold the enclosure fully loaded with transfer switches large unit approximately 250 Ibs e Mounting tabs are provided for installation convenience Clearance Enclosure Size Dimensions h x w x d Weight NEMA 1 Small unit fully loaded to 12 circuits 36 x 24x 8 5 150 Ibs NEMA 1 Large unit fully loaded to 24 circuits 48 x 30x 8 5 235
31. he loads are powered from the normal power source Emergency Mode indicator red LED that indicates the loads are powered from the Emergency alternate power source e Fire Alarm indicator indicates that the ELTS2 is an Emergency Mode as a result of a fire alarm input Remote Control Station The ELTS2 provides termination for up to five remote stations which may be installed in a parallel topology Each station includes two indicators Normal Mode and Emergency Mode for remote indication of the ELTS2 system state The test key switch is a three position momentary key switch The center position is Auto meaning standby ready for automatic operation Turning the switch to the right Switches to Emergency Mode Turning the switch to the left switches to Normal Mode CAUTION It is important to understand that use of the local and remote key switch stations switched to emergency power are only a simulation of normal power loss To retum the unit to normal operating mode you must switch the key switch to normal power Once switched to normal power if normal power is present the lighting loads will switch to operate under normal source power and the Normal Mode indicator will light The Emergency Mode indicator will deactivate e Normal Mode Indicator Indicates the loads are powered from normal power feeds Emergency Mode Indicator Indicates the presence of phase A of the emergency feeds 28 ELTS2 Installation and
32. ically fed from an adjacent dimmer rack or circuit breaker panel are wired directly to the normal side of transfer switch assembly Each circuit to the ELTS2 must have branch circuit protection external of the ELTS2 unit Do not pull individual circuit ground wires through the ELTS2 unit ETC recommends pulling circuits through grounded metal conduit or providing other means of grounding each circuit The normal sense feeds may enter the enclosure from the top left corner or top left side of the enclosure Normal sense wires from the source must first connect to external 10A circuit breaker first provided by others then pulled through conduit to the ELTS2 control board See Sense Feed Requirements on page 9 ELTS2 units manufactured for 277 VAC operation include two transformers one for Normal Mode operation and one for Emergency Mode operation Normal phase A and neutral sense feed wiring connects at the transformer instead of the control board Normal phase B and C sense feeds connect at the control electronics board Low Voltage Class 2 conductors for remote stations and the fire alarm contact input should enter the enclosure from the top left or top left side of the unit Do not pull the Class 2 wires fire alarm and remote station through the same conduit as sense phase or load power wiring ELTS2 Installation and User Operation Manual Connect Emergency Discrete Inputs for Type D Unit Connect Emergency
33. ing hardware depends on the type of enclosure you are installing the standard NEMA 1 or the optional NEMA 4 enclosure CAUTION ELTS2 units are heavy Be sure you have proper equipment or assistance to lift the unit into place and support it while securing the mounting hardware Large 46 5 Small 34 5 Large 28 5 Large 27 25 Small 22 5 Small 21 25 a Large 49 6 Large 49 56 NEMA 1 enclosure Small 37 6 Small 37 56 NEMA 4 enclosure U Large 31 25 Small 25 25 The NEMA 1 and NEMA 4 enclosures may be installed utilizing the standard top bottom mounting tabs that are provided with the unit As an alternative to the standard top bottom tab mounting you may install the NEMA 1 enclosure using the optional horizontal tab mounting kit for side mounting Reference Side Mount Hardware Installation page 33 It is the installation contractors responsibility to follow all local code restrictions Lat Installation 13 iN gt Install NEMA 1 Enclosure CAUTION ELTS2 units are heavy Be sure you have proper equipment or assistance to lift the unit into place and support it while securing the mounting hardware Large 27 25 Small 21 25 Large 46 5 Small 34 5 NEMA 1 enclosure ccu Large 49 6 Small 37 6 Small 25 25 Install NEMA 4 Enclosure 74 Large
34. l circuit inputs hot and neutral Voltage values should be within 10 percent of the rated voltage Type discrete feed ELTS2 units only measure each of the transfer switch emergency circuit inputs hot and neutral Voltage values should be within 10 percent of the rated voltage Manual Operation Manual operation is not the preferred method of switching the transfer switches from normal to emergency power and vice versa As a last resort if an electrical short has disabled the control electronics you have the option of manually switching each of the transfer switches 24 For manual operation you must follow the same practice that the ELTS2 follows during automatic operation this includes break before make switching Each transfer switch is made of a pair of contactors with a mechanical latch per contactor Each mechanical latch includes two buttons one black round button and one red rectangular button The black button depresses when the contactor is active the red button releases the contactor To deactivate an active conductor press the red release button The contactor will deactivate the power source from the lighting loads To activate the other side of the transfer switch depress the black button firmly until it catches If the button will not depress check that the other contactor has deactivated ELTS2 Installation and User Operation Manual Automatic Operation Test
35. lbs NEMA 4 Small unit fully loaded to 12 circuits 36 x 24 x 11 155 Ibs NEMA 4 Large unit fully loaded to 24 circuits 48 x 30 x 11 245 lbs Suggested mounting 36 height to the bottom of the enclosure Clearance on the left and right side of the enclosure should be a minimum of 2 Emergency main feed conduit may require extra space due to increased bend radius requirements for larger cables Suggested door clearance is 36 from the front of the small enclosure and 48 from the front of the large enclosure to allow the enclosure door to open completely Lat Installation 7 Electrical Requirements WARNING Emergency alternate power must match normal power within the ELTS2 unit Mixing voltages within the ELTS2 may cause system failure The ELTS2 is available in two base voltages including 120 VAC or 277 VAC 120 VAC 60Hz units may be any form of 120 VAC power including e 208Y 120 VAC 60Hz three phase 4 wire plus ground e 120 240 VAC 60Hz single phase 3 wire plus ground 120 VAC 60Hz single phase 2 wire plus ground 277 VAC 60Hz units may be any form of 277 VAC power including 277 1 480 60Hz three phase 4 wire plus ground 277 single phase 2 wire plus ground A unit manufactured as a 120 VAC unit cannot operate on a 277 VAC supply and vice versa 277 VAC
36. le E157852 Complies with ANSI NFPA 110 Standard for Emergency and Standby Power Systems Satisfies requirements of the National Electrical Code NFPA 70 Article 700 Emergency Systems Article 701 Legally Required Standby Systems Article 702 Optional Standby Systems Section 518 3 C Assembly Occupancies Section 520 7 Theatres and Similar Locations Section 540 11 C Motion Picture Projection Rooms Contacting ETC If you have any questions regarding the installation or operation of your ELTS2 please contact ETC Technical Services at the office nearest you Americas ETC International Technical Services Department 3031 Pleasant View Road Middleton WI 53562 800 775 4382 USA toll free 608 831 4116 service etcconnect com Asia ETC Asia Ltd Technical Services Department Room 1801 18F Tower 1 Phase 1 Enterprise Square 9 Sheung Yuet Road Kowloon Bay Kowloon Hong Kong 852 2799 1220 service etcasia com Warnings and Notice Conventions United Kingdom Electronic Theatre Controls Ltd Technical Services Department Unit 26 28 Victoria Industrial Estate Victoria Road London W3 6UU UK 44 0 8896 1000 service etceurope com Germany Electronic Theatre Controls GmbH Technical Services Department Ohmstrasse 3 83607 Holzkirchen Germany 49 80 24 47 00 3 00 techserv hoki etcconnect com These symbols are used throughout this document to alert you to danger or important inf
37. nstallation Normal Power Type Circuit Breaker Notes 120 VAC 19 2 wire 10A 1 pole 208Y 120 30 4 wire 10A pole A 10 amp circuit breaker is 120 240 VAC 10 3 wire 10A 2 pole highly recommended buta 19 amp circuit breaker may be 277 480 3 4 wire 10A 3 pole substituted if required 277 480 VAC 10 3 wire 10A 2 pole Example For a single phase 120 VAC installation the normal sense feed requirements include a single pole 10A circuit breaker and a neutral pass through to the ELTS2 CONNECT SENSE FEED VIA SINGLE POLE SENSE FEED TO THE ELTS Bv orHERS 10A CIRCUIT BREAKER Bv OTHERS 120 VAC 18 BY OTHERS NORMAL Power NEUTRAL PASSES THROUGH TO THE ELTS Source Note The circuit breaker may be 10 amp but no more than 15 amp Transfer Switch Specification A transfer switch is comprised of a pair of contactors one for normal inputs and one for emergency inputs factory wired Transfer switches provide connection for line and neutral of two 20A circuits on the input side The two contactors in the assembly are connected by a mechanical interlock in a manner that ensures the circuits break from normal power before making the transfer to emergency power and vice versa Emergency inputs to the transfer switch are factory wired Ad leaving only the normal inputs to the switch for customer termination Load outputs from the transfer switch
38. of normal power fails the ELTS2 considers that all phases of normal power have failed the normal power indicator goes off and the emergency power indicator illuminates red Specified Voltage Pickup and Dropout Voltage pickup and dropout values are not adjustable Event 120 VAC 277 VAC Models Models emergency phase A pickup voltage 100 VAC 230 VAC normal phase A dropout voltage 80 VAC 185 VAC normal phase A pickup voltage 100 VAC 230 VAC normal phase B dropout voltage 80 VAC 80 VAC normal phase B pickup voltage 81 VAC 81 VAC normal phase C dropout voltage 80 VAC 80 VAC normal phase C pickup voltage 81 VAC 81 VAC How Time Delays Work Two sets of dip switches are provided on the ELTS2 control board for user adjustable time delays The time elapsed after sensing a normal power failure and before switching to the emergency feed is adjustable from 170 ms 10 seconds When shipped from the factory the switches are set to 170 ms The time elapsed after sensing the restoration of normal 2 Operation 27 A power and before switching back to the normal feed is adjustable from 170 ms 60 seconds When shipped from the factory the switches are set to 30 seconds Both time delays apply to any transfer type in the ELTS2 including loss of power fire alarm or system test See Adjust the Power Transfer Delays on page 29 Fire Alarm Contact Input Operation The ELTS2 is supplied with a normally clo
39. onduit entry for load output from ELTS2 to emergency lighting loads Conduit entry for discrete emergency branch circuit breaker feed input Conduit entry for normal load input from dimmer rack or branch circuit breaker panel 11 M Main Feed Cable Specification and Conduit Access Purpose Terminal Accepts Torque Notes 20A circuit from a normal source dimmer rack or 14 8 AWG 16 in lbs Line and neutral conductors only No ground circuit breaker panel to the transfer switch lugs provided in the ELTS2 1 normal sense feed single phase or Normal power sense must connect to the three phase must match normal power feeds ELTS2 through an external 10A circuit 6 20 AWG neutral breaker Reference Sense Feed Requirements page 9 for details and N lugs Emergency Main Feed small enclosure 2 12 circuits 2 0 14 AWG 10 ft lbs Use with an emergency power source Ground lug same generator inverter or second utility and N lugs 350MCM NOTE Emergency and normal power must Emergency Main Feed large enclosure 2 24 circuits 6 AWG us A 5 match within the unit Ground lug 2 0 14 AWG Emergency lighting load output terminal strip 22 8 AWG Fire Alarm dry contact input E normally closed dry contact input 12 22 AWG 5 Remote Stations conductor 24 Vdc Up to 5 remote stations per system typically Class 2 wired in a parallel topology
40. ormation o Note Notes are helpful hints and information that is supplemental to the main text A CAUTION A Caution statement indicates situations where there may be undefined or unwanted consequences of an action potential for data loss or an equipment problem WARNING A Warning statement indicates situations where damage may occur people may be harmed or there are serious or dangerous consequences of an action WARNING RISK OF ELECTRIC SHOCK This warning statement indicates situations where there is a risk of electric shock Please email comments about this manual to TechComm etcconnect com ELTS2 Installation and User Operation Manual Product Overview The ETC Emergency Lighting Transfer System ELTS2 is a UL 1008 Listed emergency load transfer switch designed to switch lighting loads from one power source to another when there is a power failure or other emergency situation present When a normal power failure is detected the ELTS2 automatically transfers the load both hot and neutral conductors of the associated dimmer output to a separate emergency power source When normal power is restored the ELTS2 reconnects the load to normal power The local control panel includes a test keyswitch and LED indicators which clearly display the system status The ELTS2 is available in two panel sizes as standard a small enclosure for two to twelve 20 amp circuits of emergency AC lighting loads and a large enclosure for
41. r Operation Manual Section 2 Operation How the ELTS2 Works The ELTS2 automatically transfers branch circuits from a normal power source to an emergency alternate power source when normal power fails This is a UL 1008 transfer Switch for use not as part of the building service but as an emergency egress lighting load transfer switch typically receiving loads from a dimmer rack The ELTS2 operates on priority of power failure first fire alarm activation and last local and remote stations During a power failure local and remote stations do no affect the state of the ELTS2 When a power fail is detected the ELTS2 disconnects the normal power feed and switches the lighting loads to the connected emergency power source ONLY when stable emergency power is available When the ELTS2 has switched to emergency power local and remote station indicators illuminate to indicate the system is operating in Emergency Mode When normal power has been restored the emergency feed is disconnected and the loads are switched back to the normal power Local and remote station indicators illuminate to indicate the system is operating in Normal Mode How the ELTS2 Determines a Power Failure Initially to determine a power fail the ELTS2 monitors voltage on phase A B and C of normal power When any phase drops to or below the dropout voltage the ELTS2 switches the loads to the connected emergency alternate power source When any one of the phases
42. rmal operation resumes 30 ELTS2 Installation and User Operation Manual Fire Alarm Test Test the fire alarm contact input Step 1 Activate the fire alarm Normal Mode indicator on the local station of the ELTS2 will deactivate e The ELTS2 switches to emergency power and the Fire Alarm LED and the Emergency Mode LED illuminate All connected lighting loads illuminate to full bright Note There will be a short delay between the transfer of normal power to emergency power This delay is user adjustable on dip switches and allows the user to delay the transfer for a period of time when the emergency source is on and stable See Normal to Emergency Transfer Delay on page 29 Step 2 Reset the fire alarm The Fire Alarm LED and Emergency Power LED on the local station of the ELTS2 will deactivate e The ELTS2 switches to normal power and the Mode indicator will illuminate and all connected lighting loads will resume normal operation There will be a short delay between the transfer of emergency power to normal power This delay is user adjustable on dip switches and allows the user to delay the transfer for a period of time when the normal source is on and stable See Emergency to Normal Transfer Delay on page 29 Manual Operation Manual operation is not the preferred method of switching the transfer switches from normal to emergency power and vice versa As a last resort if an electrical short has di
43. s to the Transfer Switch 19 Connect Load Output Wires to the Terminal Strip 19 Connect 120 VAC Sense Power Wiring 20 Connect 277 VAC Sense Power Wiring 21 Connect Fire Alarm and Remote Station Wiring 21 Connect Fire Alarm 21 Connect Remote Station 22 Power Up and Check System 23 Power Up osa E Red i 23 Check System Voltage 23 Manual Operation 24 Automatic Operation 25 ODGTPAtlOR 22 Spec d 27 How the ELTS2 27 How the ELTS2 Determines a Power Failure 27 Specified Voltage Pickup and 27 How Time Delays 27 Fire Alarm Contact Input 28 Local and Remote Control Station Operation 28 Local Control 5 28 Remote Control 5 28 Adjust the Power Transfer 29 Normal to Emergency Transfer 29 Emergency to Normal Transfer 29 Fest Procedure sc us e ree 30 Local and Remote Key Switch
44. sabled the control electronics you have the option of manually switching each of the transfer switches 2 Operation For manual operation you must follow the same practice that the ELTS2 follows during automatic operation this includes break before make switching Each transfer switch is made of a pair of contactors with a mechanical latch per contactor Each mechanical latch includes two buttons one black round button and one red rectangular button The black button depresses when the contactor is active the red button releases the contactor To deactivate an active contactor press the red release button The contactor will deactivate the power source from the lighting loads To activate the other side of the transfer switch depress the black button firmly until it catches If the button will not depress check that the other contactor has deactivated 31 32 Service Preventive Maintenance Regular testing and simple maintenance of your ELTS2 system will result in long service life and reliable performance See Automatic Operation Test on page 25 Maintain and post a test and maintenance log near the ELTS2 cabinet Replacement Parts Replacement Fuse Emergency load output fuses are available from ETC use part number F106 or purchase the fuses from your local electrical supply house Use a 20A 480 VAC Buss SC 20 fuse Replacement Door Key Contact ETC Technical Services or your local ETC Service Center for a r
45. sed dry contact closure for use with a fire alarm input When the input is opened the connected loads are placed in Emergency Mode and the local station Fire Alarm indicator will illuminate When the contact is closed the input is internally strapped to a closed state and the ELTS2 will return to Normal Mode Local and Remote Control Station Operation Local Control Station The ELTS2 is provided with an integrated local key switch station on the front of the unit for user access to manual switching between normal and Emergency Mode In addition the ELTS2 is provided with three highly visible indicators of system status The test key switch is a three position momentary key switch Turning to the right switches to the ELTS2 into Emergency Mode Turning to the left switches the ELTS2 into Normal Mode During a power fail both local and remote controls are ignored and will not change the state of the transfer switches CAUTION It is important to understand that use of the local and remote key switch stations switched to emergency power are only a simulation of normal power loss To retum the unit to normal operating mode you must switch the key switch to normal power Once switched to normal power if normal power is present the lighting loads will switch to operate under normal source power and the Normal Mode indicator will light The Emergency Mode indicator will deactivate Normal Mode indicator green LED that indicates t
46. tion 4 Normal Mode LED Position 5 Emergency Mode LED ELTS2 Installation and User Operation Manual Power Up and Check System Power Up WARNING Death by injury from electrical shock Close the ELTS2 door before applying power to the ELTS2 Step 1 Apply normal power to the ELTS2 the connected dimmer rack and or circuit breaker panel at the main circuit breaker panel When normal power is stable the Normal Mode LED on the local key switch station will illuminate and the transfer switches will switch all connected loads to the normal source power e The ELTS2 transfers to Normal Mode only when the normal power source is at or above the specified voltage required See Specified Voltage Pickup and Dropout on page 27 Step 2 Apply emergency power to the ELTS2 When normal source power is at or above specified voltage required the system will remain in Normal Mode Automatic function of the system will change to Emergency Mode only when the fire alarm contact is sent or normal source power drops below specified voltage See Specified Voltage Pickup and Dropout on page 27 Step 3 Check the indicators on the installed remote stations Each station when properly installed will indicate the ELTS2 status with LED illumination Normal Mode or Emergency Mode Check System Voltage Use of a digital volt meter is required for this procedure WARNING ELTS2 voltage tests should only be performed by
47. y visible integrated local control station with a three position test key switch Auto Normal Power and Emergency Power for system test The local station also includes a full complement of system status indicators including Fire ALARM Normal Mode green LED Normat Emercency Move Emergency Mode red LED Fire Alarm red LED The ELTS2 enclosure provides ample space for contractor wiring Standard NEMA 1 rated enclosure is 14 AWG welded steel enclosure with a hinged locking door Optional NEMA 4 rated enclosure is watertight and includes a hinged locking door 277 units are provided with integral transformers to step down normal phase A and emergency phase A feeds into the control electronics ELTS2 units are provided with 20A fuses for branch circuit protection Dual inline pin Dip switches on the control electronics are provided for user selectable timing delays for power transfer between the loss of normal power and the transfer to emergency power e the restoration of normal power and the transfer from emergency power back to normal power A normally closed dry contact closure is provided for Fire Alarm input Up to five remote stations may be used per ELTS2 system Remote stations include a key switch for switching between normal and emergency states Each station also includes two LEDs illuminating the active ELTS2 state Normal Mode or Emergency Mode After normal power is r
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