Installation Instructions
and
User Manual
For
LG Series
For 375VA/375W & 600VA/600W Large-Inverter Power Systems
Models:
LG375S Surface Mounted Version
LG600S Surface Mounted Version
LG375SI
LG600SI
Surface Mounted Version w/Self-Test
Surface Mounted Version w/Self-Test
READ AND FOLLOW ALL SAFETY INSTRUCTIONS
IMPORTANT SAFEGUARDS
When using electrical equipment, basic safety precautions should always be followed, including the following:
READ AND FOLLOW ALL SAFETY INSTRUCTIONS:
• Do not use outdoors.
• Do not let power supply cords touch hot surfaces.
• Do not mount near gas or electric heaters.
• Use caution when servicing batteries. Battery acid can cause burns to skin and eyes. If
acid is spilled on skin or in eyes, flush acid with fresh water and conact a physician immedi-
ately.
• Equipment should be mounted securely in locations and at heights where it will not be read-
ily subjected to tampering by unauthorized personnel.
• The use of accessory equipment not recommended by the MANUFACTURER may cause an
unsafe condition.
• The AC voltage rating of this equipment is specified on the product label. Do not connect
equipment to any other voltage.
• Do not use this equipment for other than its intended purpose.
• Servicing of this equipment should be performed by qualified service personnel.
SAVE THESE IMPORTANT SAFETY INSTRUCTIONS
The installation and use of this product must comply with all national, federal, state, municipal, or local codes that apply.
Please read this manual thoroughly before operating the LG Inverter System.
For technical assistance, contact Dual-Lite’s Technical Support Center at 1-800-848-6439.
Technicians are available during normal working hours (EST).
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equiment is operated in a commercial environment. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. Operation of this equiment in a residential area is
likely to cause harmful interference in which case the user will be required to correct the interference at his
own expense.
2.
Table of Contents
Description Page
Section 100
System Installation Instructions
101.
102.
102.1
102.2
103.
103.1
103.2
104.
104.1
104.2
104.3
104.4
105.
105.1
105.2
..........
105.3
..........
106.
106.1
106.2
..........
106.3
107.
108.
109.
109.1
109.2
110.
110.1
110.2
Specifications ......................................................................................................
Receiving, Moving and Storing Systems and Batteries ......................................
Shipping Damage ...............................................................................................
Temporary Storage of Units and Batteries ..........................................................
Installation Requirement .....................................................................................
Operating Environment .......................................................................................
High Altitude Operation .......................................................................................
Cabinet Mounting ................................................................................................
Tools Required ....................................................................................................
Mounting Hardware .............................................................................................
Knockout Locations .............................................................................................
Cabinet Mounting ................................................................................................
AC Connections ..................................................................................................
AC Wiring Preparations ......................................................................................
AC Input Voltage Selector Plug Installation ........................................................
Wiring Diagram - 120Vac and 277Vac connections ...........................................
AC Input/output Wiring Connections to Terminal Block ......................................
Wiring Diagram - Switched/Dimming Control (120/277Vac) ...............................
Battery Information .............................................................................................
Tools ...................................................................................................................
Battery installation and Connection ...................................................................
Wiring Diagram ..................................................................................................
Battery Voltage Check .......................................................................................
Final Installation Checklist .................................................................................
System Start-Up Procedure ...............................................................................
Manual System Test ...........................................................................................
For LG375S and LG600S ...................................................................................
For LG375SI and LG600SI ................................................................................
System Self Test / Diagnostics ..........................................................................
Self Test / Diagnostic Functions ........................................................................
Self Test / Diagnostic Indication ........................................................................
10
10
11
12
13
13
13
13
13
13
14
14
14
4
5
5
5
5
5
5
5
5
6
6
6
6
7
7
7
7
8
Section 200
Maintenance
200.1
200.2
200.3
200.4
200.5
200.6
200.7
Safe Shut Down Procedure ..............................................................................
Routine System Maintenance ...........................................................................
Manual Routine Inverter Tests ..........................................................................
Replacement Fuses ..........................................................................................
Routine Battery Inspection and Maintenance ...................................................
Battery Replacement Procedure .......................................................................
Battery Disposal ................................................................................................
15
15
15
16
16
16
16
3.
Section 100 System Installation Instructions
101. Specifications
Input
• Input voltage: Field Selectable 120 or 277Vac., (input voltage must be the same as output voltage).
• Input frequency: 60HZ ±2%
• Input surge protection: Meets UL 924
Output
• Output voltage: Field Selectable 120 or 277Vac., 60HZ., (output voltage must be the same as input
voltage).
• Output frequency: Static ±5% based on a 0% - 100% resistive load
• Minimum loading: none required
• Output distortion: Less than 3% THD linear load
• Load power factor: .88 lead to .88 lag
• Output frequency: ±0.3 Hz during emergency
• Time to transfer to inverter after a utility power failure: <1 second
Battery
• Battery type: Maintenance free sealed Lead Calcium
• Battery charger: Fully automatic dual-mode with temperature compensation
• Recharge time: Meets UL requirements (96 Hours)
• Battery protection: Automatic low-battery voltage disconnect and reverse polarity protection.
• Standard batteries: Sealed Lead-Calcium: 7-year life
• Battery voltage: 60Vdc (375W) or 96Vdc (600W)
• Runtimes: 90 minutes standard
• Operating temperature: 20°C to 30°C (68°F to 86°F)
• Relative humidity: 95% non-condensing
Note: Lead Calcium battery performance rated at 25°C (77°F) for load.
Table 1
MODEL INPUT/OUTPUT CAPACITY SYSTEM SYSTEM NUMBER BATTERY BATTERY AC INPUT THERMAL
NUMBER VOLTAGE For 1
120/277VAC
LG375S
LG600S
120/277VAC
System weights shown include installed batteries
LG375S
1
/2
Hrs. WEIGHT EFFICIENCY OF VOLTAGE CURRENT CURRENT (MAX) OUTPUT (BTUs)
(Watts/VA) Lbs. Kg. (Full Load) BATTERIES (VDC) (Amps) 120VAC 277VAC On-Line Emergency
375/375
600/600
113
172
51.3
78.1
98%
98%
3.43
1.49
5
60
7.3
8
96
7.1
5.50
2.38
11
15
LG600S
205
275
18.0” (37.5cm)
18.0” (37.5cm)
16.625” (42.2275cm)
25.25” (64.135cm)
8.25” (20.32cm)
8.25” (20.32cm)
102. Receiving, Moving and Storing Systems and Batteries
102.1 Shipping Damage
Inverter system batteries are shipped inside unit inside a separate carton.
Carefully inspect all cartons upon receipt for evidence of shipping damage.
Notify carrier immediately of leaking or damaged cartons for possible concealed damage.
102.2 Temporary Storage of Units and Batteries
For temporary storage of LG inverter systems and batteries prior to installation, select a clean, cool,
dry location with normal ventilation for human habitation and level floors.
Storage Temperature:
Store all batteries at 0° to +40° C (32° to +104° F). Batteries will have a longer shelf life if stores at 15°
C (60° F). The LG electronics battery cabinets may be stored at -20° to +60° C (-4° to +140° F).
IMPORTANT:
Lengthy storage of batteries will cause irreversible damage to the cells.
Failure to connect LG inverter system batteries to an energized charging circuit within 90 days from
the date of shipment will void the battery warranty.
DANGER: Explosive - Can Cause Blindness Or Other Severe Injuries
Every type of battery can produce hydrogen gas, even sealed, maintenance-free batteries. The gas is
vented through caps and into the air. Do not allow smoking, sparks, or flames in battery storage
location becuase hydrogen is concentrated under the vent cap of each cell of the battery. Hydrogen
is highly explosive, and is hard to detect because it is colorless, ororless, and lighter than air.
103. Installation Requirements
103.1 Operating Environment
Install the LG inverter system in a clean, cool, dry place with normal ventilation for human habitation
and in such a location to hamper vandalism but allow easy access for testing and maintenance.
Operating Temperature:
LG Inverter Systems are UL Listed for 20° to 30° C (+68° to +86° F) operation.
Battery performance and service life is maximized if the operating temperature is maintained at 25°
C (77° F).
Temperature Effect On Lead Calcium Battery Performance:
Lead Calcium batteries will be less efficient at temperatures below 20° C (68° F), and high temperatures will reduce battery life. Typically, at 35° C (95° F), battery life will be half of what it would be at
normal temperature of 25° C (77° F). At 45° C (113° F), battery life will be one-fourth of normal.
Ventilation:
The air around the unit must be clean, dust-free, and free of corrosive chemicals or other contaminants. Do not place the LG inverter system or batteries in a sealed room or container.
103.2 High Altitude Operation:
The maximum operating temperature drops 1° Celsius per 300 meters (2° F per 1000 feet) above
sea level. Maximum elevation is 3000 meters (10,000 feet).
104. Cabinet Mounting
104.1 Tools Required
The following tools are required to install the system:
Socket Set, Phillips Screwdriver, Diagonal Wire Cutters, Long Nose Pliers, Electrical Tape, Digital
Volt-Ohm Meter, Safety Glasses with Side Shields, Small Punch (knockout removal), Hammer,
Electric Drill, Wood or Masonary Bits, Level.
5.
104.2 Mounting Hardware
Mounting hardware is not provided. Care should be taken when selecting mounting hardware to
ensure that it is the proper type for the application and sized to safely support the system's full weight
when installed ensuring safe and secure attachment of system to wall surface or building structures.
For ease of installation, the factory recommends that the head size of mounting screws or bolts be
small enough to pass through the keyhole knockouts provided of mounting. This will allow the unit to
be hung on partially installed mounting hardware and facilitate easy cabinet removal if ever necessary.
104.3 Knockout Locations
All models provide knockouts on the top and sides of the unit.
Additional entry points, if required can be added using a metal punch. Do not drill into the cabinet as
metal filings can cause short circuits and damage the equipment.
NOTE: Consider unit knockout location prior to mounting unit. Allow room for easy routing of
conduit to entry point.
104.4 Cabinet Mounting
1) Remove cover and any packing material inside unit housing that may have been used for shipping
purposes.
2) Remove the appropriate knockouts, 7/8” diameter, on the top and/or sides of the unit housing to
facilitate conduit attachment. Also remove keyhole knockouts in the upper and lower corners on the
back of the housing.
3) Secure housing to mounting surface through all keyhole knockouts provided using mounting hard-
ware (not supplied) sized appropriately to support the unit weight.
105. AC Connections
CAUTION:
A) LG inverter system units contain hazardous AC and DC voltages. Because of these voltages, a
qualified electrician must install the LG inverter system, AC line service, and batteries. The
electrician must install the AC line service according to local, state and NEC codes and must be
familiar with batteries and battery installation.
B) Before installing, maintaining, or servicing the unit, always remove or shut off all sources of AC
power to the LG inverter system. Turn unit battery circuit breaker (CB-1) off to make sure the unit
will not supply output voltage. Turn the AC line input circuit breaker OFF at the service panel.
C) Whenever AC and/or DC voltage is applied, there will be AC voltage inside the LG inverter system
unit; the unit can supply power from AC line or from its batteries. To avoid equipment damage or
personal injury, always assume that there may be voltage inside the LG inverter system.
D) Remove rings, watches, and other jewelry before installing the AC wiring. Always wear protective
clothing and eye protection and use insulated tools when working near batteries. Whenever
servicing an energized unit with the inside panel open, electric shock is possible; follow all local
safety codes. TEST BEFORE TOUCHING!
E) To reduce the risk of fire or electric shock, install the LG inverter system and the batteries in a
temperature-controlled and humidity-controlled indoor area free of conductive contaminants. See
Section 103 for operating environment specifications.
6.
105.1 AC Wiring Preperations
1. Remove the system’s front cover.
2. Make sure the LG inverter system input and output voltages are correct for the particular appli-
cation. Remember that the LG system provides single-phase power only.
3. The input circuit breaker in the input service panel provides the means for disconnecting AC to the
LG inverter system. Only authorized persons shall be able to disconnect AC to the unit. (See NEC
700-20 and 700-21).
CAUTION: To prevent electrical shock or equipment damage, for all units, make sure the
LG Battery is disconnected and the AC input circuit breaker at the service panel is OFF
before making AC connections to the LG inverter system.
4. If not previously done, remove cabinet knockouts for AC Input and AC Output as described in Sec-
tions 104-4, 104.5 or 104.6 depending on mounting method.
CAUTION: Do not drill the cabinet; drill filings may damage the unit and prevent it from
operating. If larger knockouts are needed, use a chassis punch to enlarge the appropriate
knockout. Do not add additional or unnecessary knockouts.
5. Install the input and output conduits.
6. Run the AC Input service conductors and AC Output conductors through seperate conduits. LG
inverter system emergency output circuits shall be installed in dedicated conduit systems and not
shared with other electrical circuits as described in NEC 700-9(b).
LG models can be configured for either 120Vac or 277Vac input connections as well as various modes of output
opertion as described in this section. Refer to the appropriate wiring diagrams to properly con-nect the utility AC
power, fixtures and external switching or dimming device (where applicable). Perform all wiring procedures in
accordance with the applicable codes.
105.2 AC Input Voltage Selector Plug Installation
LG inverter systems may be operated from either 120Vac or 277Vac power sources. Determine the
actual AC input line voltage and install the provided Voltage Selector Jumpers in the position next to the
system terminal block that matches the line voltage potential as shown in the illustrations below.
NOTE:
Factory terminated
jumper wires are
provided with LG
Systems for making
user selected input/
output voltage
connections.
CAUTION:
Failure to install the Voltage Selector Jumpers will prevent system operation.
Jumper wires
120V INPUT
Installing the Voltage Selector Jumpers in the position that does not match the actu
line voltage will damage the unit, void the warranty and may cause a dangerous or
condition.
Jumper wires
277V INPUT
al AC
unsafe
input
105.3 AC Input/Output Wiring Connections to Terminal Block
Depending on how the fixture load is to be operated, wire the system as described below.
Normally-On Operation - Connected fixture(s) remain illuminated in AC and emergency modes.
See Wiring Diagram A.
Normally-Off Operation - Connected fixture(s) illuminate only upon loss of utility AC power.
See Wiring Diagram B.
Normally-On and Normally-Off Operation - A combination of the operating modes described above.
See Wiring Diagram C.
7.
Wiring Diagram D.
See
- Connected fixture(s) can be externally switched and will
Dimmable (
Functionally identical to the Switch Load Operation above, but provides four (4) independent settings
for each of the four dimmable loads. See Wiring Diagrams E and F.
Caution: Dimming switches must be programmed such that loads do not exceed unit rating
in emergency mode. (See Wiring Diagram K for details on dimming switch field programming)
2.5, 5.0, 7.5 or 10 volts) Load Operation / Adjustable Output (-AO Option) -
NORMALLY ON LOADSA.
NORMALLY OFF LOADSB.
NORMALLY ON & OFF LOADSC.
SWITCHED LOADSD.
8.
SWITCHED OR DIMMED EMERGENCY LOADSE.
Note: ONLY (2) OF (4) POSSIBLE SWITCHED OR DIMMED CIRCUITS SHOWN
SWITCHED OR DIMMED AND UNSWITCHED EMERGENCY LOADSF.
Note: ONLY (2) OF (4) POSSIBLE SWITCHED OR DIMMED CIRCUITS SHOWN
DIMMING OPTION CONTROL WIRINGG.
ON
NOTE: Dimming switches are designed for independent
settings to allow different emergency dimming control
voltages for each circuit.
CAUTION: Dimming switches must be programmed such
that total loads do not exceed unit in emergency mode.
See LiteGear loading table on the next page
9.
Table 2
Output of all (4)
dimming circuits (Volts)
Model Normal
Mode
LG375S-AO 1350 375 450
LG375SI-AO 1350 375 450
LG375S-AO-CB 1350 375 450
LG375SI-AO-CB 1350 375 450
LG600S-AO 2160 600 720
LG600SI-AO 2160 600 720
LG600S-AO-CB 2160 600 720
LG600SI-AO-CB 2160 600 720
2.5 5.0 7.5 10.0
Emergency
Mode
Normal
Mode
675
675
675
675
1080
1080
1080
1080
Maximum Load (Watts)
Emergency
Mode
375
375
375
375
600
600
600
600
Normal
Mode
Emergency
Mode
375
375
375
375
600
600
600
600
Normal
Mode
375
375
375
375
600
600
600
600
Emergency
Mode
375
375
375
375
600
600
600
600
106. Battery Information
Important Safety Precautions
The installer must take these precautions:
1) Wear protective clothing, eye-wear, rubber gloves and boots. Batteries contain corrosive acids or
caustic alkalis and toxic materials and can rupture or leak if mistreated. Remove rings and metal
wristwatches or other metal objects and jewelry. Don’t carry metal objects in pockets where the
objects can fall onto the batteries or into the LG inverter system.
2) Tools must have insulated handles so that they will not short battery terminals. Do not allow a tool
to short a battery terminal to another battery terminal or to the cabinet at any time. Do not lay tools
or metal parts on top of the batteries, and do not lay any objects where they could fall onto the
batteries or into the cabinet.
3) Install the batteries as described in this manual. When connecting cables, never allow a cable to
short across a battery’s terminals or to the cabinet.
4) Keep the cable away from any sharp metal edges.
5) Install the battery leads so they cannot be pinched by the LG inverter system cover/door.
6) Where conductors may be exposed to physical damage, protect conductors in accordance with
NEC requirements.
7) Full voltage and current are always present at the battery terminals. The batteries used in this sys-
tem can produce dangerous voltages, extremely high currents, and possible risk of electric shock.
Batteries may cause severe injury if the terminals are shorted together or to ground (earth).
Be extremely careful to avoid electric shock and burns caused by contacting battery terminals or
shorting terminals during battery installation. Do not touch uninsulated battery terminals.
8) A qualified electrician who is familiar with battery systems and required precautions must install
and service the batteries. Any battery used with this unit shall comply with the applicable require-
ments for batteries in the standard for emergency lighting and power equipment, UL 924. Cabinets
are designed to be used with, and batteries must be replaced by identical cells or a Manufacturer
approved equivalent. If using substitute batteries not supplied by the Manufacturer, the unit’s UL
listing will be void, and the equipment may fail to perform properly. The installation must conform to
national and local codes as well. Keep unauthorized personnel away from the batteries.
106.1 Tools
The following tools are required to install the system batteries:
Long Nose Pliers, Digital Volt-Ohm Meter, Safety Glasses
CAUTION: Always use insulated tools for battery installation.
10.
106.2 Battery Installation and Connection
Battery Placement:
The LG375S models are provided with (5) 12V Lead Calcium batteries (60Vdc string). The
LG600S models are provided with (8) 12V Lead Calcium batteries (96Vdc string).
LG375S: Carefully place all batteries in the unit battery (lower) compartment with positive (+) red
terminals facing outwards and upwards. Position batteries in the central location towards rear of the
compartment. Carefully install battery retention bracket with the supplied hardware. Reference below
image.
LPS-600: Carefully place (4) batteries in each of the battery (central and lower) compartments with
positive (+) red terminals facing outwards and upwards. Position batteries in the central locations towards
rear of the compartments. Carefully install battery retention brackets in each compartment with the
supplied hardware. Reference below image.
Battery installation
and wiring on the
LG600S model
(for reference)
Battery brackets installed on the front
Battery Wiring:
CAUTION: To prevent possible damage to the unit when connecting batteries, verify that the unit
battery circuit breaker CB-1 is in the OFF position.
Connect batteries with supplied wiring jumpers using hardware provided with batteries. For LG375S
refer to Battery Wiring Diagram 1. For LG600S refer to Battery Wiring Diagram 2.
Battery Chart:
Model System DC Voltage Number of Batteries Battery Part Number Battery Wiring Diagram
LG375S
LG600S
IMPORTANT: Observe correct polarity on battery terminals
60
96
5
8
93125537
93125537
1
2
11.
12.
106.3 Battery Voltage Check
Using a digital volt-ohm meter, check for correct nominal battery voltage between DC Input NEG
and POS wires. Volatge reading should be ±10% of system’s nominal 60Vdc for LG375S, 96Vdc
for LG600S operating voltage.
107. Final Installation Checklist
IMPORTANT: Before proceeding to the System Start-up Procedure (Section 108) complete
the Final Installation Checklist below.
1. Ensure the LG cabinet is securely fastened to a wall or other structure.
2. Ensure that the input circuit breaker in the building service panel serving as the AC disconnect to
the LG system is in the OFF position.
3. Check for proper ground connections in the LG unit cabinet.
4. Check for any loose wiring connections in the LG unit cabinet.
5. Check that correct nominal battery voltage (60Vdc for LG375S, 96Vdc for LG600S) is present in
the LG unit between the battery’s NEG and POS end terminals.
6. Verify AC Input Voltage Selector Jumpers are installed and in the proper position to accept the AC
input line voltage system voltage configuration.
CAUTION: Failure to install the Voltage Selector Jumpers will prevent system operation.
Installing the Voltage Selector Jumpers in the position that does not match the AC input
line voltage will damage the unit, void the warranty and may cause a dangerous or unsafe
condition.
108. System Start-Up Procedure
IMPORTANT: The LG inverter system is a sophisticated electronic backup power supply.
Care must be taken to follow the steps below in their exact sequence. Failure to do so may
result in possible equipment failure.
CAUTION: Familiarize yourself with the shut down procedure in Section 200.1 before proceeding with the LG system Start Up.
1. Hold S-1 Pre-charge Switch in the on(up) position for 15 seconds then release.
2. Place battery circuit breaker (CB-1) in the on position.
3. Apply utility AC power to the system by turning the branch circuit breaker in the main power panel
to the ON position. Place AC output breakers CB-3 & CB-4 in the on position (if equipped).
4. Observe the LED Status indicators and verify the following:
A) AC ON indicator (red LED) is illuminated (indicates AC utility power is available to unit).
B) CHG ON indicator (green LED) is illuminated (indicates battery is connected and charger is
operational).
5. Verify Normally-On fixtures or switched fixtures (where applicable) are illiminated (local fixture
switch must be in ON position).
109. Manual System Test
109.1 For LG375S and LG600S
Momentarily push TEST switch and verify the following:
A) INV ON status indicator (yellow) illuminates (indicates inverter is operational).
B) Normally-On, Normally-Off and Switched fixtures are illuminated (where applicable)
13.
109.2 For LG375SI and LG600SI
This model also provides for manual testing by pushing the TEST button in a specific pattern:
Action
A)
Push test switch Once (within (2) seconds)
Push test switch Twice (within (2) seconds)
Push test swithc Three times (within (2) seconds)
Push test switch and hold for (3) seconds
Push test switch and hold for (6) seconds
INV ON status indicator (yellow) illuminates (indicates inverter is operational).
B)
Normally-On, Normally-Off and Switched fixtures are illuminated (where applicable)
C)
Reaction and LED Indication
(30) second test: one blink GREEN/pause
(30) minute test: two blinks GREEN/pause
(90) minute test: three blinks GREEN/pause
Cancels Test
System reset
110. System Self-Tests
Once the system is properly installed in accordance with the installation instructions, and AC power is
supplied to the LG inverter system, the dual color (SDT STATUS) LED indicator will illuminate, followed by
the amber (INV ON) LED indicator. The dual color LED indicates the unit’s status. A steady GREEN LED
indicates normal service; A blinking GREEN/RED LED indicates the battery is charging; A blinking RED LED
(in different combinations) indicates a service alert. Refer to the INDICATION chart in sections 110.2 for
details. During loss of normal utility power the dual color LED will not be illuminated. The AMBER (INV ON)
LED indicator will be illuminated only during inverter operation initiated by the loss of utility power or during
any manual or automatic self-test.
Do not touch components inside the unit. DC voltage is always present at the batteries and battery cables.
110.1 Self-Test/Diagnostic Functions
The self-diagnostic function is factory preset and performs the following:
A) Continuous monitoring of battery, battery charger and connected loads.
B) Self-testing and a (30) second discharge with a randomized start (per UL 924, Sec. 30.2), once
every (30) days, after normal utility power has been supplied for a minimum of (48) hours.
C) Self-testing and a (30) minute discharge with a randomized start (per UL 924, Sec. 30.2), once
every (180) days, after normal utility power has been supplied for a minimum of (48) hours.
D) Self-testing and a (90) minute discharge with a randomized start (per UL 924, Sec. 30.2), once
every (365) days, after normal utility power has been supplied for a minimum of (48) hours.
110.2 Self-Test/Diagnostic Indication
14.
200. Maintenance
200.1 Safe Shut Down Procedure
CAUTION: To avoid possible equipment damage or personal injury, assume that there is AC
voltage present inside the LG inverter system unit any time AC input power or DC battery
voltage is applied. The inverter is capable of providing output voltage from the batteries even
when there is no AC input line voltage. When AC input voltage is present, the unit can provide
output voltage even when the batteries are dicsonnected.
Do not touch components inside the unit. DC voltage is always present at the batteries and
battery cables.
Final Shut Down Procedure
1. Open the unit’s front access panel.
2. Place unit battery circuit breaker (CB-1) in the off position to make sure the unit will not supply
output voltage.
3. Place the AC Input circuit breaker at the service panel in the OFF position.
CAUTION: HAZARDOUS ENERGY IS STORED IN CAPACITORS INSIDE THE UNIT.
AFTER TURNING OFF SWITCHES, ALLOW 5 MINUTES FOR CAPACITORS TO DISCHARGE
BEFORE ATTEMPTING ANY SERVICE PROCEDURES.
4. If the service technician does not need to access the inside of the unit, keep the unit’s front cover/
door closed.
5. If the unit will be shut off for an extended period of time, recharge battery every 60 to 90 days.
CAUTION: The battery will be damaged and the warranty voided if not routinely recharged.
NOTE: To turn power back on, follow the “System Start-up Procedure” outlined in Section
108. Be sure to complete all of the steps to ensure the unit will operate properly.
200.2 Routine System Maintenance
The LG inverter system unit is designed to provide years of trouble-free operation. The unit does
require some routine attention to ensure peak performance. The Manufacturer recommends a
Preventative Maintenance check be performed by a qualified service technician at least every six
months. The technician must observe important safety precautions while performing the following
recommended tasks:
• Inspect and clean the unit interiors;
• Inspect all batteries for leaks, case swelling or terminal corrosion;
• Perform an emergency operation test to check operation of all critical connected to loads
200.3 Manual Routine Inverter Tests
NFPA101 requires that Emergency Lighting Equipment be tested on a monthly basis for a period of at
least 5 seconds, and a minimum of 90 minutes once a year. We strongly recommend these guidelines
be followed to ensure system readiness, and to prolong battery life. The LG system was designed with
a front panel test switch to facilitate monthly testing. Simply depress the button and hold to test the
inverter at any time. Once released, the LG will revert back to standby operation. For annual 90-minute
discharge or other prolonged tests, simply turn off the AC Input breaker at the service panel.
15.
200.4 Replacement Fuses
DC Fuse:
Batt. (+) Input
For LG375S & LG600S
1) Bussmann ABC-10-R
200.5 Replacement Battery Inspection and Maintenance
Sealed Lead-Calcium Batteries
Maintenance-free cells are the most common type of battery used today in standby equipment. By
design it is as maintenance free as a battery can be. It is recommended, however, that some simple
steps be taken to increase system life and maximize reliability.
A) A quarterly visual check of the battery should be conducted to look for deformities in the
battery case, electrolyte leakage and/or terminal corrosion. Any batteries with these condi-
tions are defective and should be replaced. Any corroded terminals found, regardless how
slight, are to be cleaned at once to prevent system failure.
B) Once a year, all battey connections should be checked for tightness and cleaned and re tightened as necessary.
200.6 Battery Replacement Procedure
WARNING:
Always use the same quantity and type of battery as replacements.
Substituting batteries not supplied by the Manufacturer will void the UL listing of the system and may
cause equipment failure. To ensure the superior performance of your LG inverter system and to
maintain proper charger operation, replace spent batteries only with those having the same part number, voltage and ampere-hour rating as the original batteries.
1. Follow the proper shut down procedure as described in Section 200.1
2. Carefully disconnect all battery wiring. Remove battery retention bracket(s).
3. Remove the batteries from the cabinet.
4. Install new batteries following the instructions outlined in Section 106.2.
200.7 Battery Disposal
WARNING:
• Do not dispose of batteries in a fire, the batteries can explode.
• Do not open or mutilate batteries.
• Released electrolyte is highly toxic and harmful to the skin and eyes.
CAUTION: Batteries contain lead. Many state and local governments
have regulations regarding used battery disposal. Please dispose of
the batteries properly.
Dual-Lite • www.dual-lite.com
A Hubbell Lighting, Inc. brand with representatives’ ofces in principal cities throughout North America.
Copyright © Hubbell Lighitng, Inc., All Rights Reserved • Specications subject to change without notice. • Printed in U.S.A.
18000097 1/20
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