ELTS Manual - Lex Products
Contents
1. Activation The Fire Alarm control circuit has been opened The red indicator on the door will be illuminated during any failure mode Supply Voltage Measurements Once power has been applied to the system use an AC volt meter to confirm that all normal and emergency voltages are within 10 of rated nominal voltage for that circuit Time delays on transfer functions When the system is first powered up there is a 5 second delay before the normal power contactors are pulled in Similarly when the system is switching from the emergency mode back to the normal mode there is a 1 minute delay from the time the normal monitored inputs are recognized until the time the circuit transfer contactor are switched and the system is energized with normal power Technical Services Team Lex Products is available to help answer any installation or operation inquiries If you have questions need technical advice or have suggestions regarding this product please contact us at 800 643 4460 or email us at technical_support lexproducts com 800 643 4460 e www LexProducts com LEX We Deliver the Power PowerGATE Switches amp Panels ELTS mn v1 c2. The PLC will display Auto Switch Monitoring Inputs on the LCD At this time the green indicator light in the cabinet door will be illuminated If this is not the case then the PLC will need to be placed in the active monitoring mode oo 929252 225 355500 100 240VAC Inputs 11 1C 100 240VAC 1 SR2 8201FU J 4 a gt Menu Ok Outputs Q1 Q8 Relay 8A ws 79 559 9 9 FIIF FY To place the PLC in monitoring mode 1 Press the Menu button 2 Press the down arrow button and select RUN Once the run mode the LCD will display Auto Switch Monitoring Inputs and the green indicator light in the cabinet door will be illuminated Once the circuit transfer contactors for the normal power have latched and the green indicator lamp is illuminated apply normal power and emergency power to the system Test the system using the test key LEX User Guide When a condition is detected that will switch the system to the emergency mode the condition will be displayed on the PLC display The messages that can be displayed are Connection Conductor Size Auto Switch Monitoring Inputs Normal operation monitoring inputs One or more of the 3 monitored phases are absent Loss Of Normal Power Undervoltage condition exists Incorrect phase rotation Test Switch Activation The test switch has been activated Aux Input Activation The external Aux control circuit has been opened Fire Alarm
3. 2 5 S 5 os EE B gt ble 5 1 5 GENERATOR AUX T amp FIRE ALARM NORMAL CIRCUITS FROM DIMMERS EMERGENCY POWER CIRCUITS DISCRETE ONLY LOAD CIRCUITS D essei 35 RIGHT SIDE VIEW For ease of wiring the product has been designed so all electrical connections terminate in the top and right side of the cabinet On the Main Feed series panels the emergency power conduit enters the top of the panel directly above the lugs marked 208V Emergency Power For Discrete Feed panels conduits for the emergency feed circuits the normal feed circuits and the load circuits enter the right side of the panel close to their respective terminal blocks Control normal power sensing and options connect within the areas noted in the example diagram above NOTE Do not run the control normal power sensing or option conductors in the same conduit used for the emergency power conductors 800 643 4460 e www LexProducts com 2 Step 4 Connecting Power IN WARNING To prevent death or serious injury due to electrical shock both normal and emergency power must be turned off during the installation servicing or maintenance of the system Connecting Emergency Power Main Feed For the Main Feed series the emergency power lugs are located in the top center of the cabinet Create an appropriately sized hole for the conduit directly above the power lugs Install the conduit and pull the emergency p
4. Lex Products Corporation 15 Progress Drive Shelton CT 06484 203 363 3738 203 363 3742 Fax We Deliver the Power PowerGATE EMERGENCY LIGHTING TRANSFER SWITCH Test Switch Emergen PowerGATE Switches amp Panels Lex West www lexproducts com 11847 Sheldon Street info lexproducts com Sun Valley CA 91352 800 643 4460 818 768 4474 818 768 4040 Fax Emergency Lighting Transfer Switch Installation Instructions and User Manual LM ELTP Rev 000 Table of Contents 3 Lex PowerGATE Emergency Lighting Transfer Switch Components 2 2 200 20000 000050000000000050500 05005313 4 INSTALLATION 0 5 Step 2 Mounting the ELTS Ca DNA PE 6 Step 3 Planning Wire Entry into the Cabinet 7 tep PANG ORIRGCURO PONBE cs cee sn nese pertum Da tbi du dre Eu uU e edunt M utet du 8 ctl RETE 10 ADo mem 11 Emergency Lighting Transfer Switch LEX User Guide Introduction This manual details the installation and use of your Lex Emergency Lighting Transfer Switch Before installation read this manual in its entirety Store this manual in a safe location for future reference How to use this manual This manual covers two product variants e ELTS XX 1 has individual 120VAC 20A circuit emergency power feeds for each output circuit Discrete feed LELTS XX 3 has a single 120 208 30 emergenc
5. User Guide 208V Monitoring Connections The ELTS monitors the normal power to determine when a normal power failure occurs Sensing wires are required from a 3 pole breaker not included plus neutral from the same normal feed as the circuits being transferred Connect the sensing wires from the normal feed to the three phases and neutral on the terminal block labelled 208V Monitored Power Terminals accept 22 10 AWG conductors and should be tightened to 25 Ib in Note Power sensing conductors must be 12 AWG or larger Connecting the Fire Alarm Interface You can connect your system to a fire alarm interface so that it switches to the emergency mode when the fire alarm is triggered The interfacing fire alarm system must be able to provide an open signal when it activates This is a 120VAC circuit To connect the Fire Alarm signal wires locate the terminal block marked Gen Aux FA on the right side of the panel Remove the shorting jumper from between the FA terminals and connect your fire alarm control conductors NOTE If the Fire Alarm activation circuit is not going to be used leave the shorting jumper in place Connecting the Auxiliary Interface You may connect your system to an auxiliary interface so that it switches to the emergency mode when the auxiliary circuit is opened An example of an Auxil iary device would be a remote key switch Your auxiliary circuit must be able to provide an open signal when it activ
6. ates This is a 120VAC circuit To connect the Auxiliary device signal wires first locate the terminal block marked GEN AUX FA on the right side of the panel Remove the shorting jumper from between the AUX terminal blocks and connect your auxiliary control conductors NOTE If the Auxiliary activation circuit is not going to be used leave the short ing jumper in place Connecting the Generator Engine start circuit The ELTS can be used to start a standby generator in the event of a power failure or emergency event Please note that your generator must support the remote start feature Consult your generator manual for details When the ELTS is in Emergency mode the GEN contacts are closed providing a closed circuit to the generator To connect the Generator Start signal wires first locate the terminal block marked GEN AUX FA on the right side of the panel Connect your generator control conductors to the terminals marked GEN NOTE Refer to your generator installation manual for start circuit wiring details 800 643 4460 e www LexProducts com ES Emergency Lighting Transfer Switch Step 5 Operation AN WARNING Testing may only be performed by qualified personnel Having an energized open cabinet presents a serious electric shock hazard that could result in serious injury or death Testing Apply 208V monitoring power to the system In 1 minute the circuit transfer contactors for the normal power will latch
7. ck and Inspect Before you begin your installation carefully check your shipment to ensure it arrived complete and undamaged 1 Check the shipping container for obvious physical damage such as e Torn or opened container e Water stains or wetness Crushed or punctured container 2 If you find damage document it to help with a claim against the shipper 3 Unpack your order and check the contents against the packing list to ensure your order is complete 4 Open the cabinet door and check for loose components or broken components as the result of shipping vibrations and handling Tighten anything that has come loose If it can t be tightened or if something is broken contact Lex Technical Services at 800 643 4460 5 For any of the above issues or any other concerns call Lex Customer Service at 800 643 4460 800 643 4460 e www LexProducts com ES Step 2 Mount the ELTS Cabinet When considering the mounting location and planning the installation of the ELTS take into account the following 1 Depending on the number of circuits and features of your system enclosure size will vary Consider the overall cabinet mounting dimensions Height Depth and Width when selecting the mounting location 2 Leave adequate space around the cabinet for entry You must mount the cabinet with sufficient front clearance minimum 3 ft 2 inches to allow the door to open completely 3 Ensure that there is adequate space around the cabinet for condu
8. it On Main Feed cabinets the emergency feed conduit may require additional space to meet NEC bend radius requirements 4 Mount the cabinet on a load bearing wall in a location where it will not be subject to tampering or vandalism Choose a location where it will be the most likely to be secure from damage from fire flood or other conditions and incidents that will require its use If there are any doubts about about a location s suitability contact Lex Technical Services 5 Do not install the cabinet inside any other electrical or confined enclosure provided Anchors suitable for the wall material will be required After determining where to mount the cabinet make sure you have adequate equipment to lift and support the cabinet in place while securing it to the mounting location The cabinet has pre drilled mounting holes in each of the 4 corners Secure the cabinet to the mounting location using the 7 16 diameter screws not included Anchors suitable for the wall the panel is to be mounted on will be required and are not included Emergency Lighting Transfer Switch LEX User Guide Step 3 Planning Wire Entry into the Cabinet Refer to Figure 1 for recommended conduit entry locations Please note that main feed and discrete feed models have different terminal block locations FIGURE 1 Recommended Conduit Entry Locations Into Cabinet TOP VIEW s 5 aS gt 28 ag 58
9. ower conductors into the cabinet Connect the appropriate conductor to the corresponding lug Tighten each phase conductor and neutral as follows Wire Size Torque 350 3 0 200 105 2 0 1 100 Ibs i 7 6 8 14 35 Ibs in The Main Feed terminal blocks support wire sizes from 14 to 350kcmil Ground is from 6AWG to 250kcmil Discrete Feed On the Discrete Feed series panels connect each emergency supply circuit to the terminal block marked 120V Emergency Power Inputs located on the right side of the cabinet Tighten each connection to 25 Ib in Connecting Normal Power Main Feed and Discrete Feed Versions The normal 120V circuits often from dimmers are connected to the terminal block marked as120V Normal Power Inputs located on the right side of the cabinet Tighten each connection to 25 Ib in NOTE Each normal circuit must be protected with a 20A circuit breaker located at the source cabinet The 120V Normal Power Input terminal blocks support the following wire sizes Connection Conductor Size Line and neutral 22 10 AWG Connecting the Lighting Loads Main Feed and Discrete Feed Versions Emergency Lighting Transfer Switch The output load terminal block is on the right side of the cabinet Connect the load conductors to the 120V Load terminal block Tighten each to 25 Ib in The terminal blocks support the following wire sizes Connection Conductor Size Line and neutral 22 10 AWG LEX
10. y power feed Main feed For the remainder of the document the different variants will be referred to as discrete feed and main feed AN WARNING This equipment has the potential to be the source of an electric shock hazard Take extreme caution when the cabinet door is opened and the system is energized This equipment should only be installed commissioned and serviced by qualified service personnel Tools Needed e Blade screwdriver 3 16 blade e Phillips screwdriver Metric Allen key set Main feed panels only e Socket wrench for mounting bolts e Drill suitable for drilling holes in wall to mount the panel Metal punches to make conduit entry holes in cabinet e Wire strippers e Pliers Anchors suitable for the wall that the ELTS is to be mounted on are required and are not included 800 643 4460 e www LexProducts com Es Lex PowerGATE Emergency Lighting Transfer Switch Components Normal Operation Indicator TRANSFER Syne Test Key Switch 6 Emergency Operation Indicator Door Latch and Lock Emergency 30 Supply Main version only Monitored Normal 30 Supply Controller Supply Fuses Voltage Dropout Adjustment Programmable Logic Controller Transfer Relays Auxiliary Fire Alarm amp Generator Start Circuits from Dimmers Emergency Lighting Transfer Switch To Load Circuits 20A Type J Fuses LEX User Guide INSTALLATION Step 1 Unpa
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