Page 1
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
ECN/DATE
E12
CONSTAVOLT®
18B - Digital Combination Alarm Package
CPN109298
17650 – 11/07
16816 – 6/05
ISSUE DATE: 16390 - 08/04
FLOAT
BATTERY CHARGER
Including optional accessories
And
010 - AC and DC Circuit Breakers
106 BRADROCK DRIVE
DES PLAINES, IL. 60018
(847)299-1188
FAX:(847)299-3061
INSTRUCTION DRAWING NUMBER:
P25-LE12-1
Page 1 of 20
Page 2
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
This manual contains important safety and operating instructions for the La Marche Power Conversion
Equipment.
Before using this equipment, read all instructions and cautionary markings on (1) unit, (2) battery, and
(3) product using the battery.
CAUTION: To reduce risk of injury and/or damage to the batteries, use only
the type of batteries specified on the charger.
Do not
Do not
way; take it to a qualified serviceman.
Do not
Incorrect re-assembly may result in a risk of electric shock or fire.
To reduce risk of electric shock, disconnect this unit from the AC supply, or batteries and loads before
attempting any maintenance or cleaning. Turning off controls will not reduce this risk.
expose equipment to rain or snow.
operate equipment if it has received a sharp blow, been dropped, or otherwise damaged in any
disassemble this unit; take it to a qualified serviceman when service or repair is required.
WARNING – THERE IS A RISK OF EXPLOSIVE GASSES AND WORKING IN THE
VICINITY OF A BATTERY IS DANGEROUS. SOME BATTERIES GENERATE
EXPLOSIVE GASES DURING NORMAL BATTERY OPERATION. FOR THIS
REASON, IT IS OF UTMOST IMPORTANCE THAT EACH TIME BEFORE USING
THIS UNIT, YOU READ THIS MANUAL AND FOLLOW THE INSTRUCTIONS
EXACTLY.
To reduce risk of battery explosion, follow these instructions and those published by the battery
manufacturer and manufacturer of any equipment you intend to use in the vicinity of the battery.
Review cautionary marking on all products .
PERSONAL PRECAUTIONS:
1. Someone should be within range of your voice or close enough to come to your aid when you
work near a battery.
2. Have plenty of fresh water and soap nearby in case the battery electrolyte contacts skin,
clothing, or eyes.
3. Wear complete eye protection and clothing protection. Avoid touching eyes while working near a
battery.
4. If the battery electrolyte contacts skin or clothing, wash immediately with soap and water. If the
electrolyte enters the eye, immediately flood the eye with running cold water for at least ten (10)
minutes and get medical attention immediately.
5. Never smoke or allow a spark or flame in vicinity of a battery.
6. Be extra cautious, DO NOT drop metal onto a battery. It might spark or short-circuit the battery
or cause an explosion.
7. Remove personal metal items such as rings, bracelets, necklaces, and watches when working
with a battery. A battery can produce a short-circuit current high enough to weld these items
causing severe burns.
8. NEVER charge a frozen battery.
Page 2 of 20
Page 3
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
PREPARING TO CHARGE
1. If it is necessary to remove the battery connections, always remove grounded the terminal from the
battery first. Make sure all loads are disconnected and unit is off, so as not to cause an arc.
2. Be sure the area around the battery is well ventilated while the battery is being charged.
3. When cleaning battery terminals, be careful to keep corrosion from coming in contact with eyes.
4. Study all the battery manufacturer’s specific precautions such as removing or not removing cell caps
while charging, recommended rates of charge, and maintenance procedures.
UNIT LOCATION
Never place this unit directly above the standard flooded battery. Gases from the battery will
corrode and damage equipment. A sealed maintenance free or valve regulated lead acid
(VRLA) may be placed below this equipment.
Never allow the battery electrolyte to drip on this unit when reading the specific gravity or
filling the battery.
Do not operate this unit in a closed-in area or restrict ventilation in any way.
Do not set any battery on top of this unit.
DC CONNECTION PRECAUTIONS
Connect and disconnect DC output cables only after setting all of this unit's switches to off position and
removing AC input supply.
GROUNDING INSTRUCTIONS
This battery charger should be connected to a grounded, metal, permanent wiring system; or an
equipment grounding conductor should be run with circuit conductors and connected to equipmentgrounding terminal or lead on battery charger. Connections to battery should comply with all local codes
and ordinances.
CAUTION: DO NOT PULL ON OUTPUT CABLES WHEN DISCONNECTING CHARGER FROM BATTERY.
Page 3 of 20
Page 4
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
RECEIVING INSTRUCTIONS
AND
GENERAL EQUIPMENT INFORMATION
CAUTION: To ensure safe installation and operation, the information given in
the instruction manual should be read and understood before installing or
using the equipment.
RECEIVING INSTRUCTIONS
Unpacking and Inspection: Examine the shipping crate upon arrival. If there is obvious damage, describe
on the receiving documents. Within a few days after delivery, the equipment should be uncrated and
carefully inspected for hidden damages. When removing packaging material, be careful not to discard
any equipment, parts, or manuals. If any damage is detected you should:
1. File a claim with the carrier within five (5) days.
2. Send a copy of the claim to La Marche Mfg. Co.
3. Call La Marche Mfg. For a RETURN MATERIAL AUTHORIZATION NUMBER.
Failure to properly file a claim for shipping damages, or provide a copy of the claim to La
Marche Mfg., may void warranty service for any physical damages reported for repair.
HANDLING
WARNING: Equipment can be very heavy, and top-heavy. Use adequate manpower or
equipment for handling. Until the equipment is securely mounted, care must be used to
prevent the equipment from being accidentally tipped over.
NOMENCLATURE PLATES
Each piece of La Marche Mfg. Equipment shipped is identified by part number on the nomenclature plate.
ADJUSTMENTS
All equipment is shipped from the factory fully checked and adjusted. Do not make any adjustments
unless the equipment has been powered-up and the settings have been determined to be incorrect.
SPARE PARTS
To minimize downtime during installation or normal service, it is advisable to purchase spare fuses, circuit
boards and other recommended components. Please refer to the list of recommended spare parts and
their La Marche Mfg. Part numbers included with the instruction manual. It is recommended that spare
fuses be ordered for all systems.
To order spare parts, please contact La Marche Mfg. (847)-299-1188 during business hours
and ask for the Parts Department.
Page 4 of 20
Page 5
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
***CAPACITOR PRE-CHARGE INSTRUCTIONS***
WARNING: READ INSTRUCTIONS BEFORE CONNECTING BATTERY
To prevent the DC output fuse from blowing when connecting the battery,
connections to the power supply and batteries should be done in the
following order (single power supply).
Connect AC input line to the terminal block provided. Be sure the units’ AC circuit breaker is off.
Observe the polarity of the battery cables, charger output, and relay rack terminals. Connect the
proper battery cable to the ground bar or battery charger output terminal.
Energize the power supply by turning on the units' AC breaker. This will charge the capacitors inside
the power supply and eliminate heavy arcing when the remaining battery cable is connected. After
approximately one (1) minute, turn off the power supply and immediately connect the remaining
battery cable.
Connect loads.
Turn on the power supply again and the charger will commence charging the batteries and powering
the load. (NOTE: For units equipped with a low-voltage disconnect panel, the "Load On" switch
must be put in the "Load On" position.)
Page 5 of 20
Page 6
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
INSTALLATION AND OPERATING INSTRUCTIONS
FOR THE
LaMARCHE E12 CONSTAVOLT® FLOAT BATTERY CHARGERS
The Constavolt® Float Rectifier is designed to operate on a specific number of cells. The nameplate on
the charger indicates the type and number of cells required. Once properly installed and adjusted, the
rectifier should maintain the battery in a fully charged condition. Install the rectifier so that the flow of
air through the ventilators is not obstructed. Binding posts with wire lug connectors are provided within
the unit, for the AC & DC connections.
To operate the charger, connect the AC power to the terminals marked "AC INPUT". Connect the battery
to the terminals marked "DC OUTPUT". Connect the DC load to the terminals marked "DC OUTPUT" or
"LOAD". Before connecting the AC power, loads, or battery leads, observe the proper polarity, and be
sure that the battery type, number of cells, and the AC input agree with the nameplate data.
Note: Customer to provide AC Input protection on 208Vac or 240Vac units.
OPERATION
Upon installation, the desired float/equalize voltage may be obtained by adjusting the potentiometers on
the front of the unit. (See ADJUSTMENTS) The charger will charge to its maximum rate and taper to a
trickle charge when the battery reaches its float voltage. Check the battery manufacturers specification
for the proper float, equalize voltage setting and equalize cycle.
When a battery is discharged or standing idle, the battery voltage will be less than the float or equalize
voltage. Therefore, when the charger is put into operation, it will immediately begin to charge the
battery. The charger will charge the battery at its rated output to a predetermined setting. It is
necessary to trickle charge the battery at a very low rate in order to keep the battery fully charged.
Therefore, after the charge has brought the battery to full charge, it shuts down to a small continuous
charge preserving charge.
CHARGER COMPONENTS
The charger has four (4) basic components: a transformer, saturable reactor, silicon rectifier stacks, and
control unit. The basic operation of these units is as follows:
The transformer transforms the incoming AC voltage to the required level to charge the battery. The
transformer also isolates the incoming power from the output. The saturable reactor regulates the power
output of the transformer continuously over the charge cycle. The rectifier stacks are made up of silicon
diodes to rectify the secondary AC power to DC power. The control senses the condition of the battery
and controls the reactor, which in turn regulates the power output of the transformer.
The standard float charger is provided with a potentiometers for adjusting the float and equalizing
voltage level and a float/equalize switch for transferring the output of the charger from float charge to
equalize charge.
Page 6 of 20
Page 7
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
AUTOMATIC CHARGE CONTROLS (TYPE AC41)
The charge rate is completely controlled by the saturable reactor and sensing control (AC41). The
battery voltage is sensed by the AC41 Control Panel. An op-amp conducts into the base of a transistor
and the transistor operates to shunt the saturating coil of the reactor. When the battery is discharged,
the battery voltage is low and the reactor saturating coil saturates the reactor. The impedance change of
the reactor due to the core saturating shifts more voltage to the primary of the transformer which in turn
increases the induced voltage in the secondary of the transformer, thus, increasing the charge rate to
maximum rated output. When the battery voltage reaches it float voltage, the control begins to operate
to reduce the charge rate. The op-amp begins to conduct into the transistor and begins to shunt the
current from the saturating coil to the reactor. The reactor begins to de-saturate increasing the
impedance, and the voltage to the transformer primary begins to drop, thus decreasing the output.
AC LINE COMPENSATION
The float charger has a specially designed transformer/reactor combination, which inherently
compensates for variations in the incoming AC power. The impedance balance of the transformer/reactor
combination compensates for a line voltage variation of + 10% of the nominal AC voltage specified on
the nameplate.
AUTOMATIC CURRENT LIMITING
The float charger will charge to its maximum current capacity and begin to current limit if overloaded.
The automatic current limiting feature limits the output of the charger to a maximum of 105% rated load.
The control panel is preset and factory adjusted to the required current limiting. The current limiting is
accomplished by limiting the saturating current to the reactor, thus, controlling the maximum current
output of the unit.
AC POWER FAILURE
A power failure relay is provided to disconnect the automatic control from the battery and, therefore,
limit the drain on the battery. One (1) set of normally open and closed contacts from this relay is
connected to terminals for connection to a remote power failure alarm. The charger will automatically
resume charging upon return of AC power.
ADJUSTMENTS/MAINTENANCE
The charger is factory tested and preset so that no field adjustments are necessary. Potentiometers are
provided for adjusting the float and equalizing voltages to the required levels. Because of the stable,
rugged, and static design of this unit, very little maintenance is required. Occasional blowing out of dust
and tightening of connections are the only maintenance requirements.
Float / Equalize lights indicate the charge mode of the rectifier.
FILTERING E12 UNITS
Additional filtering is provided on E12 units. Standard filtering is 100 MV-RMS when connected to a
battery with an amp hour capacity of four (4) times the capacity of the charger at rated output.
Page 7 of 20
Page 8
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
11.1 Constant factor for commercial (TW type) copper wire
POWER CABLING FORMULAS
SIZE
AWG.
AREA
CIR.
MILS
SIZE
AWG.
MCM*
AREA
CIR.
MILS
18 1620 1 83690 600 600000
16 2580 1/0 105600 700 700000
14 4110 2/0 133100 750 750000
12 6530 3/0 167800 800 800000
10 10380 4/0 211600 900 900000
8 16510 250 250000 1000 1000000
6 26240 300 300000 1250 1250000
4 41740 350 350000 1500 1500000
3 52620 400 400000 1750 1750000
2 66360 500 500000 2000 2000000
*DENOTES ALL SIZES LARGER THAN =0000 ARE EXPRESSED IN MCM.
TABLE OF CONVENTIONS
CMA = Cross section of wire in circular MIL area
A = Ultimate drain in amperes
LF = Conductor loop feet
MAX AMP = Maximum allowable amperes for given voltage drop
AVD = Allowable voltage drop
K =
(KS5482-01)
= 17.4 for aluminum (KS20189)
Calculating Wire Size Requirements
CMA = A X LF X K
AVD
Calculating Current carrying capacity of wire
Max Amp = CMA X AVD
LF X K
Source: Handbook 100-National Bureau of Standards
NOTE: All Wire #6 and larger is stranded.
SIZE
MCM*
AREA
CIR.
MILS
Page 8 of 20
Page 9
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
NOTE: These are recommended wire size. All National and Local Wiring Codes must be followed.
The table lists the AC input and the DC output minimum wire size requirements. At distances exceeding 10 feet, the
DC wire size should be chosen to keep the voltage difference between the units DC output terminals and the battery
at less than 1/2 volt when the unit is fully loaded. If the distance between the units DC output and the battery
exceeds 10 feet, use the Power Cable Formula to determine wire size.
WIRE GAUGE TABLE
WIRE SIZE EQUIPMENT
REQUIREMENT GROUNDING
FUSE CUSTOMER CONDUCTOR
SIZE CONNECTION MINIMUM
----------------------------------------------------- 1 #14 #14
3 #14 #14
4 #14 #14
5 #14 #14
6 #14 #14
10 #14 #14
15 #12 #12
20 #12 #12
25 #10 #12
30 #10 #10
35 # 8 #10
40 # 8 #10
45 # 8 #10
50 # 8 #10
60 # 6 #10
70 # 6 # 8
80 # 4 # 8
90 # 4 # 8
100 # 4 # 8
110 # 2 # 6
125 # 2 # 6
130 # 2 # 6
WIRE SIZE EQUIPMENT
REQUIREMENT GROUNDING
FUSE CUSTOMER CONDUCTOR
SIZE CONNECTION MINIMUM
-------------------------------------------------------------
150 #1 #6
175 #1/0 #6
200 #2/0 #6
225 #2/0 #4
250 #4/0 #4
300 250-MCM #4
350 350-MCM #2
400 400-MCM #2
450 500-MCM #2
500 600-MCM #2
600 900-MCM #1
700 1500-MCM 1/0
800 2/500-MCM 1/0
1000 2/800-MCM 4/0
1200 2/1000-MCM 4/0
1600 2/2000-MCM 4/0
2000 250-MCM
2500 350-MCM
3000 400-MCM
4000 500-MCM
5000 700-MCM
6000 800-MCM
Page 9 of 20
Page 10
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
TABLE #1 - E12 HEAT LOSSES (SINGLE PHASE) (based on 75% eff. at rated load)
DC AMPS-DC VOLTS WATTS IN WATTS OUT WATTS LOST BTU/HR.
3- 24V 106 79 26 91
6- 24V 211 158 53 182
10-24V 352 264 88 303
15-24V 528 396 132 455
20-24V 704 528 176 607
25-24V 880 660 220 759
30-24V 1056 792 264 910
35-24V 1232 924 308 1062
3-48V 211 158 53 182
6-48V 422 317 106 364
10-48V 704 528 176 607
15-48V 1056 792 264 910
20-48V 1408 1056 352 1214
30-48V 2112 1584 528 1821
35-48V 2816 2112 704 2428
3-130V 572 429 143 493
6-130V 1144 858 286 986
10-130V 1907 1430 477 1644
15-130V 2860 2145 715 2466
20-130V 3813 2860 953 3287
30-130V 5720 4290 1430 4931
35-130V 7627 5720 1907 6575
Page 10 of 20
Page 11
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
PARALLELING PROCEDURE INSTRUCTIONS
HIGH FLOAT SWITCH IN FLOAT POSITION
1. Chargers to be paralleled must be of the same voltage rating.
2. Turn one (1) charger on. Charge the battery to full charge. Set the voltage control potentiometer so
the desired float voltage is maintained at a trickle charge rate.
3. Apply the DC load. The charger should maintain the voltage constant while carrying the load
providing the load does not exceed the charger current rating.
4. Turn No. 1 charger off and turn on No. 2 charger. Set the voltage control potentiometer to float
charger as per 2. Apply load as per 3.
5. Turn both chargers on and apply load.
6. Adjust the potentiometers of both units until the load is shared equally at the desired float voltage.
7. After a short period of time, one unit may assume more of the load. Readjust the lower output
charger so the current is half the load.
8. Once properly set, the charger should load share when the load is varied, from no load to full load.
9. Since there is no interconnecting circuitry, and the units are completely isolated, both units regulate
by sensing buss voltage. At the no load trickle charge rate, one charger may assume all of the trickle
current rate, with the other charger at zero current. When heavier loads are applied, the lower
output unit will share the load.
10. When two (2) chargers of the same rating are paralleled without a load sharing circuit, one unit may
carry a greater percentage of the load over a period of time.
IN EQUALIZE POSITION
1. Follow the same procedure for setting the potentiometers as described in "float position".
Page 11 of 20
Page 12
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
input voltage with
See "Troubleshooting and Diode
battery voltage with unit
See "troubleshooting and Diode
Charger will not taper to finish
2. To check control panel, disconnect
and separate blue and black wires
going to pin one on the control
panel. If the unit shuts down, the
Charger operates, but will not
1. Measure voltage from Pin 5 on control
output
terminal. If voltage is zero, the
power failure relay may be
2. To check control panel on units
(without a power stage) turn off unit
and disconnect 12 Pin connector
2 Circuit Board, jump Pin
3 to 8 on connector. Power up unit
if unit goes to high rate, electronic
nel may be defective. Units with
Power Stage, disconnect 12 Pin
TROUBLESHOOTING
GENERAL INFORMATION
This troubleshooting guide should be used by trained service personnel or an experienced electrician.
CAUTION: Hazardous AC and DC voltages are present within the units' enclosure.
Equipment: The only equipment required is a multi-scale volt-ohm meter, and a standard tool kit.
Before setting up any complicated testing or jumping to any conclusions, give the unit a general
inspection. Check the following:
Check DC output cables, connections, battery type, and number of battery cells with charger rating.
Check unit specifications with customer order.
Check input connections, input voltage, and line breaker size.
Check for shipping damage, loose connections, broken wires, etc.
Certain failures can be caused by defective batteries and customer loads; make sure batteries and
loads are free from defects.
NOTE: If the problem is found to be located in the printed circuit boards, the board should be replaced.
No attempt should be made to repair circuit boards in the field.
Information you should have when calling in for troubleshooting assistance:
Equipment model number and serial number.
The actual AC input voltage.
The DC output voltage with and without battery.
Result of check of AC breaker and DC output fuse.
DC output amps when measuring the DC output voltage with battery and load connected to rectifier.
TROUBLESHOOTING CONSTAVOLT® BATTERY CHARGER AND POWER SUPPLIES
SYMPTOM POSSIBLE CAUSE PROCEDURE
Open AC input fuse 1. Incorrect AC input 1. Compare AC
2. Shorted diodes 2.
Open DC output
fuse
2. Shorted connector 2. Check with volt-ohmmeter
3. Shorted or reverse output 3. Check with volt-ohmmeter
4. Shorted diodes 4.
rate
2. Defective control panel
1. Defective or wrong voltage battery 1. Compare
1. Defective battery 1. Check for defective cells on battery.
voltage on unit's nameplate.
Replacement Sheet"
nameplate.
Replacement Sheet"
TYPE(AC41)CONTROL PANEL:
SYMPTOM
charge battery
2. Defective control panel
1. Defective power failure relay
control panel may be defective.
panel to negative DC
defective.
from AC41-
pa
connector, power up unit.
Page 12 of 20
Page 13
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
Charger will not taper to finish
2. Jump center coil on saturable reactor
if unit runs low; problem may be
4. Shorted transistor on power stage AC7-(B1)(D1) 4. Remove power transistors
rate
2. Defective electronic panel
3. Open float/equalize potent-
3. Open float/equalize
potentiometer
1. Defective battery 1. Check for defective cells in battery.
iometer or switch
3. Check continuity of float/equalize
potentiometer with volt-ohmmeter.
An open circuit from its slider to the
control Pin 2 will cause low unit
output.
from heatsink and check with
ohmmeter. A shorted transistor will
cause low unit output.
control panel.
3. Check continuity of float/equalize
potentiometer and float/equalize
switch. An open switch or
potentiometer may cause the unit to
run high than normal.
TROUBLESHOOTING AND DIODE REPLACEMENT
The silicon diode may be a source of trouble. The function of the diode is to allow the flow of current
through it in one direction only. If the polarity of the conducting current is reversed, the diode will block
the current flow. Thus, the diode has a low resistance to current flow in one direction, and a high
resistance to current flow in the other direction. Therefore, a simple ohmmeter may be used to test the
diode. The procedure for checking the silicon diode is as follows:
1. Isolate one end of the diode by disconnecting the wires attached to the nipple (or pigtail) end of the diode (only one end of
the diode must be disconnected).
2. Clip one lead of the ohmmeter to the nipple (or pigtail) lead of the diode. Clip the other ohmmeter lead to the aluminum
heatsink (if a portable multimeter is used, set the switches on ohms, DC and scale RX100).
3. Note the ohmmeter reading, then reverse the leads to the diode. Again, note the ohmmeter reading. If the diode is good,
the meter will indicate a high resistance in one direction, and a low resistance with the leads reversed. If the diode is
shorted, the meter will read full scale, or "0" resistance with the leads in either direction. If the diode is "open", the
ohmmeter needle will not indicate or show infinite resistance, indicating an open circuit with the ohmmeter leads in either
direction.
4. All diodes must be checked in the event that more than one diode is defective.
5. If the diode is defective, remove the defective diode from the heatsink and replace with a new diode. When installing a new
diode, be sure to note if the old diode was insulated from the heatsink. If the diode should be insulated from the heatsink,
care should be taken so that the mica insulating washer is placed properly on each side of the heatsink with insulating
bushing between the diode mounting stud and the aluminum heatsink.
WHEN ORDERING REPLACEMENT PARTS, SCHEMATICS, OR REQUESTING SERVICE INFORMATION,
ALWAYS GIVE MODEL NUMBER, SERIAL NUMBER AND AC INPUT VOLTAGE.
BATTERY CELL TYPES AND VOLTAGES
The LaMarche Float Chargers are designed specifically to charge lead acid (L), valve regulated lead acid
(LR) or nickel cadmium (N) batteries. These chargers float the batteries at 2.17 Vpc (LA), 2.25 Vpc (LR),
1.4 Vpc (N). The equalizing charge setting for the batteries are 2.33 Vpc (L), 2.27 Vpc (LR) or 1.55 Vpc
(N). The potentiometer adjustment allows for a + 5% adjustment from the nominal float/equalize
voltages. The charger nameplate indicates the type of battery and the number of cells the charger is
designed to charge.
* It should be noted that for proper battery selection, the battery must be rated to deliver the load
current for the required discharge period. Amp-hour capacity ratings are usually dependent on the rate
of discharge. The battery manufacturer should be consulted to assure that these ratings will be valid for
the load currents, discharge times and any other salient conditions.
Page 13 of 20
Page 14
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
General Maintenance Procedure
Yearly
1. Blow out rectifier/inverter with a low-pressure air hose.
2. Make sure all connections are tight.
3. Perform a visual check on all internal components.
4. Check front panel meters and alarms for accuracy.
4th Year
REPEAT ABOVE WITH THE ADDITION OF:
1. Check relay contacts for pitting or corrosion.
2. Check capacitors for leakage.
7th Year
REPEAT ALL, WITH THE ADDITION OF:
1. Filter, resonating capacitors and control relays should be replaced.
10th Year
REPEAT ALL WITH THE ADDITION OF: (except replacing capacitors and control relays, they should be
replaced every 7 years)
1. Check magnetics, components and wiring for signs of excessive heat.
Page 14 of 20
Page 15
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
MANUFACTURER’S WARRANTY
All La Marche Manufacturing Co. equipment has been thoroughly tested and found to be in proper operating
condition upon shipment from the factory and is warranted to be free from any defect in workmanship and material
that may develop within one year from date of purchase. In addition to the standard one (1) year warranty, La
Marche warrants it’s magnetics and power diodes on a parts replacement basis only for four (4) more years under
normal use.
Any part or parts of the equipment (except fuses, DC connectors and other wear-related items) that prove defective
within a one (1) year period shall be replaced without charge providing such defect, in our opinion, is due to faulty
material or workmanship and not caused by tampering, abuse, misapplication or improper installation. Magnetics
and power diodes are warranted for five (5) years after date of purchase. During the last four (4) years of this five
(5) year warranty period, the warranty covers parts replacement only, and no labor or other services are provided by
La Marche, nor is La Marche obligated to reimburse the owner or any other person for work performed.
Should a piece of equipment require major component replacement or repair during the first year of the warranty
period, these can be handled in one of two ways:
1. The equipment can be returned to the La Marche factory to have the inspections, parts
replacements and testing performed by factory personnel. Should it be necessary to return a
piece of equipment or parts to the factory, the customer or sales representative must obtain
authorization from the factory. If upon inspection at the factory, the defect was due to faulty
material or workmanship, all repairs will be made at no cost to the customer during the first
year. Transportation charges or duties shall be borne by purchaser.
2. If the purchaser elects not to return the equipment to the factory and wishes a factory service
representative to make adjustments and/or repairs at the equipment location, La Marche's field
service labor rates will apply. A purchase order to cover the labor and transportation cost is
required prior to the deployment of the service representative.
In accepting delivery of the equipment, the purchaser assumes full responsibility for proper installation, installation
adjustments and service arrangements. Should minor adjustments be required, the local La Marche sales
representative should be contacted to provide this service only.
All sales are final. Only standard LaMarche units will be considered for return. A 25% restocking fee is charged
when return is factory authorized. Special units are not returnable.
In no event shall La Marche Manufacturing Co. have any liability for consequential damages, or loss, damage or
expense directly or indirectly arising from the use of the products, or any inability to use them either separately or in
combination with other equipment or materials, or from any other cause. In addition, any alterations of equipment
made by anyone other than La Marche Manufacturing Co. renders this warranty null and void.
La Marche Manufacturing Co. reserves the right to make revisions in current production of equipment, and assumes
no obligation to incorporate these revisions in earlier models.
The failure of La Marche Manufacturing Co. to object to provisions contained in customers' purchase orders or other
communications shall not be deemed a waiver of the terms or conditions hereof, nor acceptance of such provisions.
The above warranty is exclusive, supersedes and is in lieu of all other warranties, expressed or implied, including any
implied warranty of merchantability or fitness. No person, agent or dealer is authorized to give any warranties on
behalf of the Manufacturer, nor to assume for the Manufacturer any other liability in connection with any of its
products unless made in writing and signed by an official of the manufacturer.
Page 15 of 20
Page 16
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
MANUFACTURER’S EXTENDED PARTS WARRANTY
(THIS IS YOUR WARRANTY IF YOU HAVE PURCHASED THE EXTENDED PARTS WARRANTY AS SHOWN ON OUR INVOICE TO YOU OR
IF YOU PURCHASE THE EXTENDED PARTS WARRANTY WITHIN 30 DAYS AFTER THE DATE OF OUR INVOICE)
All La Marche Manufacturing Co. equipment has been thoroughly tested and found to be in proper
operating condition upon shipment from the factory. Any part or parts of the equipment (except
protective devices, DC connectors and other wear-related items) that prove defective within a one (1)
year period from the date of our invoice to you shall be replaced without charge providing such defect, in
our opinion, is due to faulty material or workmanship and not caused by tampering, abuse, misapplication
or improper installation. Labor and parts are covered during this one (1) year period.
For the next four (4) years after the expiration of the one-year warranty, on a parts replacement only
basis, any part or parts of the equipment (except protective devices, DC connectors and other wearrelated items) that prove defective within the additional four (4) year period shall be replaced
providing such defect, in our opinion, is due to faulty material or workmanship and not caused by
tampering, abuse, misapplication or improper installation. During this four (4) year period, the
warranty covers parts replacement only, no labor or other services are provided by La Marche, nor is La
Marche obligated to reimburse the owner or any other person for work performed.
In addition, magnetics and power diodes are warranted for ten (10) years after the date of our invoice to
you. The defect in the magnetics or power diodes must, in our opinion, be due to faulty material or
workmanship and not caused by tampering, abuse misapplication, or improper installation. Labor and
replacement magnetics and power diodes are covered during the initial one (1) year period from the date
of our invoice to you. During the last nine (9) years of this ten (10) year warranty period for magnetics
and power diodes, the warranty covers parts replacement only, no labor or other services are provided by
La Marche, nor is La Marche obligated to reimburse the owner or any other person for work performed.
Should a piece of equipment require major component replacement or repair during warranty period,
these can be handled in one of three ways:
1. If the Purchaser elects to take the responsibility of repairing the equipment and requests replacement part(s), Purchaser or
Sales Representative must contact Factory for return authorization and a purchase order must be issued. Replacement part(s)
will be promptly shipped and invoiced. After the defective part(s) are returned and inspected at the Factory, if the defect(s)
were due to faulty material or workmanship, credit will be issued.
2. The equipment can be returned to the La Marche factory to have the inspections, parts replacements and testing performed by
factory personnel. Should it be necessary to return a piece of equipment or parts to the factory, the customer or sales
representative must obtain authorization from the factory. If upon inspection at the factory, the defect was due to faulty
material or workmanship, all repairs will be made at no cost to the customer during the first year. If the Extended Warranty is
purchased, the parts required for repair will also be at no cost but La Marche will notify the Purchaser of the costs of Labor to
replace the defective part(s). A Purchase Order to cover this labor is required before repairs will be initiated. Transportation
charges or duties shall be borne by Purchaser.
3. If the purchaser elects not to return the equipment to the factory and wishes a factory service representative to make
adjustments and/or repairs at the equipment location, La Marche's field service labor rates will apply. A purchase order to
cover the labor and transportation cost is required prior to the deployment of the service representative.
In accepting delivery of the equipment, the purchaser assumes full responsibility for proper installation,
installation adjustments and service arrangements. Should minor adjustments be required, the local La
Marche sales representative should be contacted to provide this service only.
All sales are final. Only standard La Marche units will be considered for return. A 25% restocking fee is
charged when return is factory authorized. Special units are not returnable.
In no event shall La Marche Manufacturing Co. have any liability for consequential damages, or loss,
damage or expense directly or indirectly arising from the use of the products, or any inability to use them
either separately or in combination with other equipment or materials, or from any other cause. In
addition, any alterations of equipment made by anyone other than La Marche Manufacturing Co. renders
this warranty null and void.
La Marche Manufacturing Co. reserves the right to make revisions in current production of equipment,
and assumes no obligation to incorporate these revisions in earlier models.
The failure of La Marche Manufacturing Co. to object to provisions contained in customers' purchase
orders or other communications shall not be deemed a waiver of the terms or conditions hereof, nor
acceptance of such provisions.
THE ABOVE WARRANTY IS EXCLUSIVE, SUPERCEDES AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR
IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS. NO PERSON, AGENT OR
DEALER IS AUTHORIZED TO GIVE ANY WA RRANTIES ON BEHALF OF THE MANUFACTURER, OR TO ASSUME FOR THE
MANUFACTURER ANY OTHER LIABILITY IN CONNECTION WITH ANY OF ITS PRODUCTS UNLESS MADE IN WRITING
AND SIGNED BY AN OFFICIAL OF THE MANUFACTURER.
Page 16 of 20
Page 17
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
DIGITAL COMBINATION ALARM
18B OPTION
Description:
Digital Display, selectable for DC voltage, DC current (amps), timer mode, and
equalize time remaining (hours)
Electronic equalize timer with amber light
Summary Alarm with / 2 Sets of Form “C” contacts – alarm with high or low voltage
one and two, high voltage shutdown or low current. (AC power failure and Low
current alarm can be disabled when in the calibrate mode)
AC Green pilot light with 2 sets of form (C) contacts
Low DC Voltage Alarm 1 with light and 2 Sets of Form “C” contacts
Low DC Voltage Alarm 2 with light
High DC Voltage Alarm with light and 2 Sets of Form “C” contacts
Low DC Current Alarm with light and 2 Sets of Form “C” contacts
High DC Voltage Shutdown with light and 1 Sets of Form “C” contacts
Reset pushbutton
Equalize / select mode switch
Selectable Ground Detection circuit with 1 set of Form "C" contacts
(Yes - ACTIVE No - DISABLED)
The low DC volts , low current, high DC voltage alarms, the equalize timer mode and
equalize time are all adjustable from the front door panel.
NOTE: See schematic within manuals for customer alarm contacts. All
contacts are dry “Form C”. Contact Data:
LOAD RESISTIVE LOAD (p.f. = 1)
Rated load 0.60va at 120Vac
2A at 30Vdc
Contact material Ag(Au clad)
Carry current 2A
Max. operating voltage 125Vac
125Vdc
Max. operating current 2A
Max. switching capacity 62.50Va
60W
Min. permissible load 10uA, 10mVdc
Page 17 of 20
Page 18
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
OPERATION
Once the proper AC input and battery are connected to the system, the digital display will
indicate the system output voltage, the DCV "LED" will light. Toggle the equalize/select switch
down to the select position and the display will indicate system output amps and its "LED" will
light. A third toggle and the time mode will indicate on the display and its "LED" will light. A
fourth toggle and the equalize time remaining will indicate on the display.
To check or re-set the alarm settings, hold the equalize/select switch in equalize for
approximately five (5) seconds, the low voltage "LED-1" will blink and the display will read the
low voltage setting for approximately five (5) seconds, the "LED" will turn off and the LED-2 will
blink. The remaining LED's are Timer Mode, Equalize Time, High Voltage Shutdown, High
Voltage, and Low Current. The display will then indicate the symbol 9d (Ground Detection),
followed by YES for "ACTIVE" Ground Detection circuit. To disable the Ground Detection circuit
PUSH the select switch down and the display will read NO, followed by SAVE. The display and
"LED" will change every five seconds. After going through one cycle, the display will return to
the normal mode. The alarm settings, Timer Mode, or Equalize Time can be reset while their
function is active (i.e. "LED" is blinking) by using the equalize select mode switch. Pushing the
switch to up will raise the setting, while pushing the equalize select mode switch down will
lower the setting. NOTE: The cycle must be allowed to complete in order to save any new
settings.
To reset the time delay for the relay contacts or disable the ground detection circuit, hold the
Equalize/Select mode switch down for 20 secends. The alarm LED will blink and the display will
indicate unit DC voltage and unit DC current shunt size. Then, the time delay in seconds. Move
the Equalize/Select mode switch up to increase the time delay, down to decrease. The alarm
LED will switch every 5 seconds.
Note: All alarm contacts are factory set for 5 seconds except the high voltage contacts they are
set for 20 seconds.
These alarm packages are shipped with the following factory settings unless otherwise specified.
High DC voltage shutdown (HVSD): 2.5 Vpc L, LR
Low DC voltage (1):
Low DC voltage (2):
High DC voltage : 2.45 Vpc L, LR
Low DC current: .5 A
Timer mode: Mode 0
Equalize Time: 8 Hours
Page 18 of 20
1.98 Vpc L, LR
1.98 Vpc L, LR
Page 19
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
TIMER MODES
NOTE: IN ALL MODES, THE UNIT WILL RETURN TO FLOAT IF THE EQUALIZE SWITCH IS PUSHED.
MODE 0
DISPLAY indicates P00
This is the standard timer mode. If the "EQUALIZE" switch is pushed the timer will switch the charger
into the equalize mode and the equalize "LED" will indicate. The timer will automatically return the
charger to the float mode when the equalize cycle is complete.
MODE 1
DISPLAY indicates P01
This mode of operation automatically starts an equalize cycle every 7 days after. The length of this cycle
is again determined by the timer setting. After the equalize period the timer will wait for another 7 days
and then restart.
MODE 2
DISPLAY indicates P02
This mode of operation automatically starts an equalize cycle every 14 days. The length of this cycle is
again determined by the timer setting. After the equalize period the timer will wait for another 14 days
and then restart.
MODE 3
DISPLAY indicates P03
This mode of operation automatically starts an equalize cycle every 30 days. The length of this cycle is
again determined by the timer setting. After the equalize period the timer will wait for another 30 days
and then restart.
MODE 4
DISPLAY indicates P04
This mode of operation automatically starts an equalize cycle when the DC voltage drops below the low
voltage setting for 30 seconds or longer. The battery voltage must rise approximately 8% above the low
voltage set point.
Page 19 of 20
Page 20
INSTALLATION, OPERATING AND TROUBLESHOOTING INSTRUCTIONS FOR MODEL E12
AC AND DC CIRCUIT BREAKERS
010 OPTION
Description:
Single Pole AC Breaker - 120Vac
Two Pole AC Breaker - 208 OR 240Vac
Two Pole DC Breaker
Page 20 of 20
Loading...