EELP PSL Series Owner's manual
Installation And
Operation Instructions
PSL
PSLPSL
True
Sinusoidal
Output Power
PSL-375 Model
PSL-600 Model
EELP, Inc. One Neshaminy Interplex Dr. Suite 300 - Trevose, PA 19053 (800) 490-4496 www.elep.net
READ AND FOLLOW ALL SAFETY INSTRUCTIONS
IMPORTANT SAFEGUARDS
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, ush acid with fresh water and contact 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 specied 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 qualied service personnel.
SAVE THESE IMPORTANT SAFETY INSTRUCTIONS
Please read this manual thoroughly before operating the PSL Inverter System.
Description Page
Specications
Receiving, Moving and Storing Systems and Batteries
Shipping Damage
Temporary Storage of Units and Batteries
Installation Requirements
Operating Environment
High Altitude Operation
Cabinet Mounting 5
Tools Required 5
Mounting Hardware
Knockout Locations
Cabinet Mounting....................................
AC Connections 6
AC Wiring Preparations 7
AC Input Voltage Selector Plug Installation 7
AC Input/output Wiring Connections to Terminal Block 7
Battery Information...9
Tools...9
Battery installation and Connection
Battery Voltage Check2
Final Installation Checklist2
System Start-Up Procedure2
System Test2
Safe Shut Down Procedure 4
Routine System Maintenance 4
Manual Routine Inverter Tests 4
Routine Battery Inspection and Maintenance 5
Battery Replacement Procedure 5
Battery Disposal 5
10System Self Test / Diagnostics .3
110.1 Self Test / Diagnostic Functions .3
110.2 Self Test / Diagnostic Indication..3
• Input voltage: Universal 120 or 277Vac.
• Input frequency: 60HZ ±2%
• Input surge protection: Meets UL 924
• Output voltage: Universal 120 or 277Vac, 60HZ. Other voltages available upon request
• Output regulation: (static) ±5% based on a 0% - 100% resistive load
• Minimum loading: none required
• Output distortion: Less than 3% THD linear load
• Load power factor: .44 lead to .44 lag
• Output frequency: ±0.3 Hz during emergency
• Time to transfer to inverter after a utility power failure: <1 second
• Battery type: Maintenance free sealed Lead Calcium or Nickel Cadmium
• 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, Sealed Nickel Cadmium: 15-year life
• Battery voltage: 60Vdc or 96Vdc (depends on model)
• Runtimes: 90 minutes standard.
• Operating temperature : 20ºC to 30ºC (68ºF to 86ºF)
• Relative humidity: 95% non-condensing
Note: Lead Calcium battery performance rated at 25°C (77°F) for load.
Table 1 Electrical &
System weights shown include installed batteries
MODEL INPUT/OUTPUT CAPACITY SYSTEM SYSTEM NUMBER BATTERY BATTERY AC INPUT THERMAL
NUMBER VOLTAGE For 11/2 Hrs. WEIGHT EFFICIENCY OF VOLTAGE CURRENT CURRENT (MAX) OUTPUT (BTUs)
(Watts/VA) Lbs. Kg. (Full Load) BATTERIES (VDC) (Amps) 120VAC 277VAC On-Line Emergency
PSL-375 120/277VAC 375/375 113 51.3 98% 5 60 7.3 3.43 1.49 11 205
PSL-600 120/277VAC 600/600 172 78.1 98% 8 96 7.1 5.50 2.38 15 275
PSL-375 PSL-600
18.0” (37.5cm) 16.625" (42.2275cm)
18.0” (37.5cm) 25.25" (64.135cm)
8.25" (20.32cm)
8.25" (20.32cm)
Inverter system batteries are shipped separately.
Carefully inspect all cartons upon receipt for evidence of shipping damage.
Notify carrier immediately of leaking or damaged cartons for possible concealed damage.
For temporary storage of PSL 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 stored at 15°
C (60° F). The PSL electronics and battery cabinets may be stored at -20° to +60° C (-4° to +140° F).
Lengthy storage of batteries will cause irreversible damage to the cells.
Failure to connect PSL inverter system batteries to an energized charging circuit within 90 days from
the date of shipment will void the battery warranty.
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 the vent caps and into the air. Do not allow smoking, sparks, or flames in battery
stor-age location because hydrogen is concentrated under the vent cap of each cell of the battery.
Hydro-gen is highly explosive, and is hard to detect because it is colorless, odorless, and lighter than
air.
Install the PSL 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.
PSL 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).
Lead Calcium batteries will be less efficient at temperatures below 20° C (68° F), and high tempera-
tures 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.
The air around the unit must be clean, dust-free, and free of corrosive chemicals or other contami-
nants. Do not place the PSL inverter system or batteries in a sealed room or container.
CAUTION: Never Install Batteries in A Sealed Room Or Enclosure
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).
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,
Elec-tric Drill, Wood or Masonry Bits, Level.
Mounting hardware is not provided. Care should be taken when selecting mounting hardware to as-
sure that it is the proper type for the application and sized to safely support the systems full weight
when installed assuring 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 for mounting. This will allow the unit
to be hung on partially installed mounting hardware and facilitate easy cabinet removal if ever neces-
sary.
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 locations prior to mounting unit. Allow room for easy routing
of conduit to entry point.
Cabinet Mounting:
1) Remove cover and any packing material inside
unit housing that may have been used for ship-
ping 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
hardware (not supplied) sized appropriately to support the unit weight.
A) PSL inverter system units contain hazardous AC and DC voltages. Because of these voltages, a
qualified electrician must install the PSL 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 PSL inverter system. Turn unit battery circuit breaker (CB-1) off to make sure the
unit will not supply output voltage. Turn unit AC input breaker (CB-2) off (if provided). Turn the AC
line input circuit breaker at the service panel.
C) Whenever AC and/or DC voltage is applied, there will be AC voltage inside the PSL inverter sys-
tem 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 PSL inverter system.
D) Remove rings, watches, and other jewelry before installing the AC wiring. Always wear protec-tive
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 PSL inverter system and the batteries in a
temperature-controlled and humidity-controlled indoor area free of conductive contaminants. See
for operating environment specifications.
1. Remove the system’s front cover.
2. Make sure the PSL inverter system input and output voltages are correct for the particular appli-
cation. Remember that the PSL system provides single-phase power only.
3. The input circuit breaker in the input service panel provides the means for disconnecting AC to the
PSL inverter system. Only authorized persons shall be able to disconnect AC to the unit. (See
N.)
CAUTION: To prevent electrical shock or equipment damage, for all units, make sure the
PSL Battery is disconnected and the AC input circuit breaker at the service panel is OFF
before making AC connections to the PSL inverter system.
4. If not previously done, remove cabinet knockouts for AC Input and AC Output as described in
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 separate conduits. PSL
inverter system emergency output circuits shall be installed in dedicated conduit systems and not
shared with other electrical circuits as described in .
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 actual AC
input line voltage will damage the unit, void the warranty and may cause a dangerous or
unsafe condition.
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 .
Normally-Off Operation - Connected fixture(s) illuminate only upon loss of utility AC power.
See .
Normally-On and Normally-Off Operation - Acombination of the operating modes described above.
See .
PSL models can be configured for either 120Vac or 277Vac input connections as well as various modes
of output operation 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 applicable codes.
PSL 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 illustration below.
Factory terminated jumper wires
are provided with PSL Systems
for making user selected input/
output voltage connections.
See .
Switched Load Operation - Single Circuit - Connected fixure(s) can be extremely switched and will
illuminate upon loss of utility AC power regardless of external switch position.
(-) (+)
0-10V
IN
NORM
(-) (+)
EM CKT
2.5-10V
OUT
TO NORMAL
DIMMING CIRCUIT
OUTPUT
(OPTIONAL)
VOUT 1
TO CIRCUIT 1
DIMMING INPUT
DIMMING OPTION CONTROL WIRING
NOTE: ONLY (1) OF (4) POSSIBLE CIRCUITS SHOWN.
S1
CAUTION: The sum of the dimmed load levels for all circuits combined
must not exceed unit rating in emergency mode.
DIMMING OPTION PROGRAMMING TABLE
POSITION-1 VOUT 1
OPEN (OFF)
OPEN (OFF)
CLOSED (ON)
CLOSED (ON)
OPEN (OFF)
OPEN (OFF)
CLOSED (ON)
CLOSED (ON)
10.0V
7.50V
5.00V
2.50V
NOTE: Dimming switches S1 and S2 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 rating in emergency mode.
12
OPEN
1 2 3 4
COM
IN
TERMINAL BLOCK DETAIL
NORMALLY ON LOADS
NORMALLY ON & OFF LOADS
NORMALLY OFF LOADS
SWITCHED LOADS
AC INPUT
COMMON
GROUND COMMON
!
NOTES:
NORMALLY ON
COM
OUT
OFF ON SW HOT
IN INOUT OUT
TO CASE
COM
IN
TERMINAL BLOCK DETAIL
AC INPUT
COMMON
GROUND COMMON
NORMALLY OFF
COM
OUT
OFF ON SW HOT
IN INOUT OUT
TO CASE
COM
IN
TERMINAL BLOCK DETAIL
AC INPUT
COMMON
GROUND COMMON
NORMALLY OFF
COM
OUT
OFF ON SW HOT
IN INOUT OUT
TO CASE
NORMALLY ON
COM
IN
TERMINAL BLOCK DETAIL
AC INPUT
COMMON
GROUND COMMON
SWITCHED
COM
OUT
OFF ON SW HOT
IN INOUT OUT
TO CASE
LOCAL
SWITCH
OUTPUT
OUTPUT
OUTPUT
OUTPUT
OUTPUT
**
*
**
***
*
*
COMBINED NORMALLY ON AND OFF LOADS
NOT TO EXCEED LOAD RATING OF SYSTEM
INPUT SUPPLY FROM UNSWITCHED UTILITY RATED 20 AMPS MAXIMUM.
OUTPUT(S) TO LIGHTING LOADS
AVAILABLE WITHIN UNIT AS OPTION
COM
IN
TERMINAL BLOCK DETAIL
AC INPUT
COMMON
GROUND
COM
OUT
OFF ON SW HOT
IN INOUT OUT
TO CASE
SWITCHED OR DIMMED EMERGENCY LOADS
LOADLOAD SWSW
CIRCUIT 1 CIRCUIT 2
LOADLOAD SWSW
CIRCUIT 3 CIRCUIT 4
OFF OUTPUT
TO NORMALLY
NOTE; ONLY (2) OF (4) POSIIBLE SWITCHED OR DIMMED CIRCUITS SHOWN
SWITCHES
LOCAL LIGHTING
OR DIMMED
LIGHTING
LOADS
SWITCHED
(OPTIONAL)
FACTORY INSTALLED
WIRE
*
COM
IN
TERMINAL BLOCK DETAIL
AC INPUT
COMMON
GROUND
COM
OUT
OFF ON SW HOT
IN INOUT OUT
TO CASE
SWITCHED OR DIMMED AND UNSWITCHED EMERGENCY LOADS
LOADLOAD SWSW
CIRCUIT 1 CIRCUIT 2
LOADLOAD SWSW
CIRCUIT 3 CIRCUIT 4
OFF OUTPUT
TO NORMALLY
NOTE; ONLY (2) OF (4) POSIIBLE SWITCHED OR DIMMED CIRCUITS SHOWN
SWITCHES
LOCAL LIGHTING
OR DIMMED
LIGHTING
LOADS
SWITCHED
(OPTIONAL)
UN-SWITCHED
OR DIMMED
LIGHTING
LOADS
FACTORY INSTALLED
WIRE
*
*
POSITION-2
NOTE: POSITION-1 AND POSITION-2 ARE PROVIDED FOR EACH OF THE (4) CIRCUITS.
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 PSL 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 PSL 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 batteries.
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 PSL-375 models are provided with (5) 12V Lead Calcium batteries (60Vdc string). The
PSL-600 Models are provided with (8) 12V Lead Calcium batteries (96 Vdc string).
PSL-375: Carefully place all batteries in the unit battery (lower) compartment with positive (+) red
terminals facing outwards andupwards. Position batteries inthe central location towards rear ofthe
compartment. Carefully install battery retention bracket with the supplied hardware.
PSL-600: Carefully place (4) batteries ineach ofthe battery (central andlower) compartments with
positive (+) red terminals facing outwards andupwards. Position batteries inthe central locations towards
rear ofthe compartments. Carefully install battery retention brackets ineachcompartment with the supplied
hardware.
Battery Wiring:
CAUTION: To prevent possible damage to theunit when connecting batteries, verify that the unit battery
circuit breaker CB-1 is inthe OFF position.
Connect batteries with supplied wiring jumpers using hardware provided with batteries. For PSL-375 refer
to Battery Wiring Diagram 1.For PSL-600 refer to Battery Wiring Diagram #2.
Battery Chart:
Model System DC Voltage Number ofBatteries Battery Part Number Battery Wiring Diagram
PSL-375 60 5 INV-03-005 1
PSL-600 96 8 INV-03-005 2
IMPORTANT: Observe correct polarity on battery terminals
BATTERY WIRING DIAGRAM 1
BATTERY WIRING DIAGRAM 2
RED
RED
BLACK
BLACK
60VDC
96 VDC
FRONT VIEW
FRONT VIEW
BATTERY
COMPARTMENT
BUSHING
BUSHING
BUSHING
WHITE WHITE WHITE WHITE
WHITE WHITE WHITE
WHITE
WHITE WHITE WHITE
1
UPPER
BATTERY
COMPARTMENT
LOWER
BATTERY
COMPARTMENT
106.3 Battery Voltage Check
Using a digital volt-ohm meter, check for correct nominal battery voltage between DC Input NEG
and POS wires. Voltage reading should be ±10% of system’s nominal 60Vdc for PSL-375,
96Vdc for PSL-600 operating voltage.
IMPORTANT: Before proceeding to the System Start-Up Procedure (Section 108) complete
the Final Installation Checklist below.
1. Insure the PSL cabinet is securely fastened to a wall or other structure.
2. Insure that the input circuit breaker in the building service panel serving as the AC disconnect to
the PSL system is in the position. Insure that both unit AC input breaker (CB-2) is in the off
position (if provided).
3. Check for proper ground connections in the PSL unit cabinet.
4. Check for any loose wiring connections in the PSL unit cabinet.
5. Check that correct nominal battery voltage (60Vdc for PSL-375, 96Vdc for PSL-600) is present in
the PSL unit between the bat-tery’s and 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.
Install-ing 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 an dangerous or unsafe
condition.
IMPORTANT: The PSL 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 proceed-
ing with the PSL 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 input breaker CB-2 in the on position (if provided). Place AC output
breakers CB-3 & CB-4 in the on position (if provided).
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 fixtures or switched fixtures (where applicable) are illuminated (local fixture
switch must be in position).
Momentarily push switch and verify the following:
A) INV ON status indicator (yellow) illuminates (indicates inverter is operational).
B) Normally-On, Normally-Off and Switched xtures are illuminated (where applicable).
2.
0. S
Once the system is properly installed in accordance with the installation instructions, and AC power is
supplied to the, 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 section 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.
Final Shut Down Procedure
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.
Green steady
RED/GREEN blinking
GREEN blinking
One blink RED/pause
Two blinks RED/pause
Four blinks RED/pause
ystem Status
Normal Service
High Charge enabled
Test Mode enabled
Battery Charger fault
Battery fault
Lamp/Load fault
3
CAUTION: To avoid possible equipment damage or personal injury, assume that there is AC
voltage present inside the PSL 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 disconnected.
Do not touch components inside the unit. DC voltage is always present at the batteries and
battery cables.
1. Open the unit’s front access panel.
2. Place unit battery circuit breaker (CB-1) in the off position. Place unit AC input breaker (CB-2) in
the off position (if provided). To make sure the unit will not supply output voltage.
3. Place the at the service panel in the position.
CAUTION: HAZARDOUS ENERGY IS STORED IN CAPACITORS INSIDE THE PSL 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 assure the unit will operate properly.
The PSL inverter system unit is designed to provide years of trouble-free operation. The unit does re-
quire some routine attention to assure peak performance. The Manufacturer recommends a Preven-
tative 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 recommend-
ed 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 loads
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 insure system readiness, and to prolong battery life. The PSL system was designed
with a front panel test switch to facilitate monthly testing. Simply depress the button and hold to test
the inverter at anytime. Once released, the PSL 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.
14
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 battery connections should be checked for tightness and cleaned and re-
tightened as necessary.
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 PSL inverter system and to
maintain proper charger operation, replace spent batteries only with those having the same part num-
ber, voltage and ampere-hour rating as the original batteries.
1. Follow the proper shut down procedure as described in .
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 .
WARNINGS:
• Do not dispose of batteries in a re, the batteries could explode.
• Do not open or mutilate batteries.
• Released electrolyte is highly toxic and harmful to the skin and eyes.
CAUTION: Batteries contain lead or cadmium, depending on model. Many state and local
governments have regulations about used battery disposal. Please dispose of the batteries
properly.
5
This manual suits for next models
2
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