Lamarche Constavolt A41F User manual

INSTALLATION AND OPERATING INSTRUCTIONS FOR MODEL A41 - STANDARD - A41F - FILTERED
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MODEL
A41 / A41F
“Constavolt”
MARINE BATTER CHARGER
INSTRUCTION
MANUAL
ECN/DATE
CPN106433
17832 – 4/08 16841 - 6/05
18985 – 4/11 17650 – 11/07 15761 – 2/03
106 BRADROCK DRIVE
DES PLAINES, IL. 60018-1967
[phone]
FAX: [phone]
ISSUE DATE: 15559-10/02
INSTRUCTION DRAWING NUMBER:
25- LA41-1

INSTALLATION AND OPERATING INSTRUCTIONS FOR MODEL A41 - STANDARD - A41F - FILTERED
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1. SAVE THESE INSTRUCTIONS. This manual contains important safety and operating instructions. Before
using this equipment, read all instructions and cautionary markings on (1) unit, (2) battery, and (3) product
using the battery.
2. C
C
CA
A
AU
U
UT
T
TI
I
IO
O
ON
N
N:
:
:
To reduce risk of injury and/or damage to the batteries, use only the type of batteries specified on
the charger nameplate.
3. Do not expose equipment to rain or snow.
4. Do not operate equipment if it has received a sharp blow, been dropped, or otherwise damaged in any way;
take it to a qualified serviceman.
5. Do not disassemble this unit; take it to a qualified serviceman when service or repair is required. Incorrect re-
assembly may result in a risk of electric shock or fire.
6. To reduce risk of electric shock, disconnect this unit from the AC supply, batteries and loads before attempting
any maintenance or cleaning. Turning off controls will not reduce this risk.
7. WARNING – RISK OF EX LOSIVE GASES
a. 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
b. 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.
8. ERSONAL RECAUTIONS:
a. Someone should be within range of your voice or close enough to come to your aid when you work near a battery.
b. Have plenty of fresh water and soap nearby in case the battery electrolyte contacts skin, clothing, or eyes.
c. Wear complete eye protection and clothing protection. Avoid touching eyes while working near a battery.
d. 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.
e. Never smoke or allow a spark or flame in vicinity of a battery.
f. Be extra cautious, DO NOT drop metal onto a battery. It might spark or short-circuit the battery or cause an explosion.
g. 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.
h. NEVER charge a frozen battery.
i. Do not use battery charger for charging dry-cell batteries that are commonly used with home appliances. These batteries may
burst and cause injury to person or damage to property.
9. RE ARING TO CHARGE
a. If it is necessary to remove the battery connections, always remove grounded terminal from the battery first. Make sure all
loads are disconnected and unit is off, so as not to cause an arc.
b. Be sure the area around the battery is well ventilated while the battery is being charged.
c. When cleaning battery terminals, be careful to keep corrosion from coming in contact with eyes.
d. 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.
e. Follow the battery manufacturer's recharging instructions.
10. UNIT LOCATION
a. 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.
b. Never allow the battery electrolyte to drip on this unit when reading the specific gravity or filling the battery.
c. Do not operate this unit in a closed-in area or restrict ventilation in any way.
d. Do not set any battery on top of this unit.
11. DC CONNECTION RECAUTIONS
Connect and disconnect DC output cables only after setting all of this unit's switches to off position and removing AC
input supply. Do not pull on output cables when disconnecting charger from battery.
12. 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 equipment-
grounding terminal or lead on battery charger. Connections to battery should comply with all local codes
and ordinances.
IMPORTANT SAFET INSTRUCTIONS

INSTALLATION AND OPERATING INSTRUCTIONS FOR MODEL A41 - STANDARD - A41F - FILTERED
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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. lease refer to the list of recommended spare parts and
their La Marche Mfg. art 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 arts Department.

INSTALLATION AND OPERATING INSTRUCTIONS FOR MODEL A41 - STANDARD - A41F - FILTERED
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***CA ACITOR RE-CHARGE INSTRUCTIONS***
WARNING: READ INSTRUCTIONS BEFORE CONNECTING BATTERY
FOR FILTERED UNITS
To prevent the DC output fuse from blowing when connecting the battery,
connections to the battery charger and batteries should be done in the
following order (single battery charger).
•Connect AC input line to the terminal block provided. Be sure the units’ AC input 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 battery charger by turning on the AC input to the unit. This will charge the capacitors
inside the battery charger and eliminate heavy arcing when the remaining battery cable is connected.
After approximately one (1) minute, turn off the battery charger and immediately connect the
remaining battery cable.
•Connect loads.
• Turn on the battery charger 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.)

INSTALLATION AND OPERATING INSTRUCTIONS FOR MODEL A41 - STANDARD - A41F - FILTERED
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A41/A41F
The La Marche “Constavolt” Rectifier is designed to operate on a specific type battery with a specific
number of cells. The nameplate on the charger indicates type and the number of cells required. Once
properly installed the rectifier should maintain the battery in a fully charged condition. Bolt the rectifier
to a sound structural member and mount such that the flow of air through the ventilators is not
obstructed. Binding posts with lug connectors are provided on a terminal board within the unit. When
hooking up the DC output cables to the battery, be certain the positive terminal of the charger is
connected to the positive battery terminal and the negative terminal is connected to the negative of the
battery. Before hooking up the AC input cable, check the line power with that specified on the unit
nameplate. A grounding connection is also provided for complete protection. All wiring to and from the
“Constavolt” should be in accordance with the local electrical requirements. The unit should not be
installed directly over batteries.
Input and output wiring may be connected to wire lugs, provided on the input and output terminals. The
tool used to secure the wire to the lug is T & B Sta-Kon WT-130A (lugs 10 through 18), and WT-115
(lugs 3 through 8).
To operate the charger, it is only necessary to plug in the AC power and turn on the AC switch. The
charger will automatically start to charge the battery at some rate up to its maximum capacity depending
upon the state of charge of the battery and charge the battery to full charge and shutdown to a trickle
charge-preserving-charge.
The “Constavolt” has current limiting characteristics such that the unit will not exceed approximately
125% of its maximum output rating. The output is further protected by fuses for short circuiting
conditions.
The output is automatically regulated such that line voltage variations of plus (+) or minus (-) 10% of
the nominal rating does not effect the operation of the “Constavolt”. The “Constavolt” will also operate
on very low input voltages, however, the maximum charge rate will be decreased.
By using transistors and diodes, etc., instead of electronic tubes and mechanical timers, the “Constavolt”
is designed to be virtually trouble and maintenance free. Automatic regulation is accomplished with a
saturable reactor regulator which, again, has no moving parts and requires no adjustments.
The charge is factory tested and pre-set so that no field adjustments are necessary. If filed adjustments
must be made, the taper and shutdown point may be adjusted. This adjustment may be made by
moving the red slider band on the voltage reference variable resistor RVI.
Moving this slider band toward the series connected resistor RV2 raises the shutdown point which allows
the battery voltage to rise to a higher point before shutting down to a trickle charge. Moving the red
slider band away from the series connected RV2 lowers the shutdown point.
It should not be necessary to make any adjustments to this charger and should any adjustments be
necessary extreme care should be taken in making the adjustment. An accurate DC voltmeter should be
used and the DC voltage at the charger and battery terminals should be measured. The battery voltage
should not exceed the battery manufacturer specifications. Settings above this point may cause
excessive (gassing) use of water and battery heating.
The Model A41F is similar to the Model A41, except it's output is filtered. It can be used with all types of
batteries, sealed maintenance free, valve regulated lead acid (VRLA) or standard flooded types.
WHEN ORDERING REPLACEMENT PARTS, SCHEMATICS OR REQUESTING SERVICE
INFORMATION, ALWA S GIVE MODEL NUMBER, SERIAL NUMBER AND AC INPUT VOLTAGE.
CAUTION: THE Model A41 is NOT recommended for use on sealed batteries.

INSTALLATION AND OPERATING INSTRUCTIONS FOR MODEL A41 - STANDARD - A41F - FILTERED
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MOUNTING
Mount the unit vertically making sure that there are at least three inches of clearance above and below the
charger so that air can circulate through the unit. When mounted correctly, the lettering on the nameplate will
be right side up. Use heavy mounting bolts, making sure they are tightly fastened.
DRIPSHIELD
Dripshields are available as optional equipment with the Model A41 chargers. Mount the dripshield as follows:
Install the “CONSTAVOLT” as described under MOUNTING, except do not tighten the mounting bolts. Slip the
dripshield behind the converter mounting flange and onto the mounting bolts. Bolt the front of the dripshield to
the case with spacers between the shield and case. Tighten all mounting bolts.
SWITCH INSTALLATION ON TWIN ENGINE CRUISERS
When a “CONSTAVOLT” charger is used with double battery systems of a twin engine cruiser, the two battery
systems are connected across the output of the charger in parallel so that both sets of batteries are maintained
at full charge. However, when both engines are running the batteries should be disconnected from each other
or an unbalance between the separate generator or alternator systems on each engine might develop. In order
to electrically separate the batteries when both engines re running, a 200-ampere single pole, single-throw
(vapor proof) switch must in installed between the two battery sets on the ungrounded terminals, this connects
and disconnects the two sets of batteries.
One set of batteries remains connected to the “CONSTAVOLT”. This switch may be installed in a convenient
location, well above bilge’s, and should be of the enclosed type. The switch should always be open when both
engines are running, but should be closed when the charger is operating. It can be closed for starting one
engine on both sets of batteries, or for charging both sets of batteries from one engine when anchored out.
Starter cable must always be used between the starting battery banks of twin engine cruisers and to the
terminals of the battery-paralleling switch.
“CONSTAVOLT”S WITH CHARGE DIVIDERS
The charge divider consists of additional silicon rectifiers, which provide isolated leads. A two-circuit charge
divider has two positive isolated leads, a three-circuit divider has three isolated leads, etc. The negative leads
are all common. When connecting the DC leads, connect all negative leads of the batteries to the negative
terminal of the charger. Isolated positive terminals are provided in the terminal board for the connection of each
of the positive leads of the batteries to be isolated. Chargers with charge divider are normally supplied for
negatively (-) grounded systems. Specify positive (+) ground when required.
The “CONSTAVOLT” operates to charge all batteries separately and divides its total charging capability among all
the batteries. When the batteries are fully charged the “CONSTAVOLT” will trickle charge all batteries.
Discharging any of the batteries will not effect the fully charged batteries. In other words, there is no inter-
leakage between batteries with the “CONSTAVOLT” charger divider.
NOTE: When required La Marche Charge Dividers must be used with the “CONSTAVOLT”.
CAUTION: Since the “CONSTAVOLT” charger is regulated by battery voltage,
the batteries should be checked periodically for dead cells. Should a dead
cell appear in the system, replace immediately with a new battery.

INSTALLATION AND OPERATING INSTRUCTIONS FOR MODEL A41 - STANDARD - A41F - FILTERED
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INSTALLERS INFORMATION
The table below lists the AC and the DC minimum wire size requirements. At distances
exceeding 10 feet, the DC wire size should be chosen to keep the voltage difference
between the unit's terminals and the battery at less than 1/2 volt when the unit is fully
loaded. If the distance between the unit and the battery exceeds 10 feet, use the
ower Cabling Formulas to determine wire size.
WIRE SIZE TABLE
(Based upon unit fuse size)
NOTE: These are recommended wire sizes. All National and Local Wiring Codes must be
followed.

INSTALLATION AND OPERATING INSTRUCTIONS FOR MODEL A41 - STANDARD - A41F - FILTERED
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OWER CABLING FORMULAS
WIRE GAUGE TABLE
SIZE
AWG
AREA
CIR.
MILS
SIZE
MCM*
AREA
CIR.
MILS
18 1620 250 250000
16 2580 300 300000
14 4110 350 350000
12 6530 400 400000
10 10380 500 500000
8 16510 600 600000
6 26240 700 700000
4 41740 750 750000
3 52620 800 800000
2 66360 900 900000
1 83690 1000 1000000
0 105600 1250 1250000
00 133100 1500 1500000
000 167800 1750 1750000
0000 211600 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 AM = Maximum allowable amperes for given voltage drop.
CMA = Cross section of wire in circulate MIL area.
AVD = Allowable voltage drop.
LF = Conductor loop feet.
K = 11.1 Constant factor for commercial (TW Type) copper wire (KS5482-01).
= 17.4 for aluminum (KS20189)
1. Calculating Wire Size Requirements..................................................CMA= A x LF x K
AVD
2. 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.

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THE FOLLOWING INSTRUCTIONS ARE FOR USE B QUALIFIED PERSONNEL.
WARNING - THE FOLLOWING PROCEDURES WILL EXPOSE HAZARDOUS LIVE PARTS.
DISCONNECT CHARGER BEFORE PROCEEDING.
TROUBLESHOOTING MODELS A41/A41F “CONSTAVOLT” BATTER CHARGERS
S MPTOM
OSSIBLE CAUSE
ROCEDURE
Open AC input fuse
1. Incorrect AC input
Compare AC input voltage with voltage on unit nameplate.
2. Shorted diodes
See “Troubleshooting and Instructions” sheet.
Open DC output fuse
1. Defective or wrong voltage battery
Compare battery voltage with unit nameplate.
2. Shorted connector
Check with volt-ohmmeter.
3. Shorted or reverse output leads
Check with volt-ohmmeter.
4. Shorted diodes
See “Troubleshooting and Instructions” sheet.
Charger operates, but will not charge battery
1. Open RV1 and RV2 voltage divider resistor.
Red slider band must be connected to wires on resistor; with volt-ohm-meter, check
continuity of resistor.
2. Defective control panel
To check control panel, disconnect the blue & black wires going to terminal #1 on
control panel; connect the two wires together, but do not reconnect to panel. Connect
battery & turn on unit. If charger goes into high rate, the control panel is defective.
3. Defective cutout relay
To check cutout relay, turn unit on & measure the voltage from pin one on the control
panel to the positive output terminal of the battery charger. If zero DC voltage is
measured, the relay is defective.
4. Open cell in battery
Check battery cells.
Charger will not taper to finish rate
1. Defective battery
Check for defective cells in battery.
2. Defective control panel
To check control panel, disconnect & separate blue & black wires going to pin one on the
control panel. If the unit shuts down, the control panel may be defective.
NOTE: The A40 battery charger is designed to maintain the battery at approximately 2.25 volts per cell
lead (L) valve regulated lead acid (VRLA), and 1.47 volts per cell nickel cadmium (N). When the battery
reaches this voltage, the charger should shut down to a small trickle charge.

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THE FOLLOWING INSTRUCTIONS ARE FOR USE B QUALIFIED PERSONNEL.
WARNING - THE FOLLOWING PROCEDURES WILL EXPOSE HAZARDOUS LIVE
PARTS. DISCONNECT CHARGER BEFORE PROCEEDING.
TROUBLESHOOTING INSTRUCTIONS 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 tile conducting current is reversed,
the diode will block tile 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 heat sink. (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 ohm-
meter 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 "O" 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 heat sink and replace
with a new diode. When installing a new diode, be sure to note if the old diode was
insulated from the heat sink. If the diode should be insulated from the heat sink,
care should be taken so that the mica insulating washer is placed properly on each
side of the heat sink with the insulating bushing between the diode mounting stud
and the aluminum heat sink.
WHEN ORDERING REPLACEMENT PARTS, SCHEMATICS, OR REQUESTING SERVICE
INFORMATION, ALWA S GIVE MODEL NUMBER, SERIAL OR LOT NUMBER, AND AC INPUT
VOLTAGE.

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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, they should be replaced every 7 years)
1. Check magnetics, components and wiring for signs of excessive heat.

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MANUFACTURER’S STANDARD WARRANT
(I F OUR INVOICE TO OU SHOWS THAT OU HAVE PURCHASED THE E XTENDED P ARTS W ARRANT OR IF OU ARE INTERESTED IN
PURCHASING THE E XTENDED P ARTS W ARRANT , SEE THE M ANUFACTURER ’ S E XTENDED P ARTS W ARRANT )
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 its magnetics and power diodes on a parts
replacement basis only for nine (9) more years under normal use.
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 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 ten (10) years
after date of purchase. During the last nine (9) years of this ten (10) year warranty 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.
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 urchaser elects to take the responsibility of repairing the equipment and requests replacement part(s), urchaser 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 urchaser of the costs of Labor to
replace the defective part(s). A urchase Order to cover this labor is required before repairs will be initiated. Transportation
charges or duties shall be borne by urchaser.
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 WARRANT IS EXCLUSIVE, SUPERSEDES AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR
IMPLIED, INCLUDING AN IMPLIED WARRANT OF MERCHANTABILIT OR FITNESS. NO PERSON, AGENT OR
DEALER IS AUTHORIZED TO GIVE AN WARRANTIES ON BEHALF OF THE MANUFACTURER, OR TO ASSUME FOR THE
MANUFACTURER AN OTHER LIABILIT IN CONNECTION WITH AN OF ITS PRODUCTS UNLESS MADE IN WRITING
AND SIGNED B AN OFFICIAL OF THE MANUFACTURER.

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MANUFACTURER’S EXTENDED ARTS WARRANTY
(T HIS IS OUR W ARRANT IF OU HAVE PURCHASED THE E XTENDED P ARTS W ARRANT AS SHOWN ON OUR INVOICE TO OU OR
IF OU PURCHASE THE E XTENDED P ARTS W ARRANT AN TIME DURING THE FIRST 12 MONTHS 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, d.c.
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, d.c. connectors and other wear-
related 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. If you return the
equipment to our factory (freight prepaid), we will repair and cover parts and labor.
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 under the extended warranty during the initial five (5) year period from the date of our invoice to
you. During the next five (5) 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 the extended warranty period,
these can be handled in one of three ways:
1. If the urchaser elects to take the responsibility of repairing the equipment and requests replacement part(s), urchaser 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 under the Extended Warranty. Transportation
charges or duties shall be borne by urchaser.
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 WARRANT IS EXCLUSIVE, SUPERSEDES AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR
IMPLIED, INCLUDING AN IMPLIED WARRANT OF MERCHANTABILIT OR FITNESS. NO PERSON, AGENT OR
DEALER IS AUTHORIZED TO GIVE AN WARRANTIES ON BEHALF OF THE MANUFACTURER, OR TO ASSUME FOR THE
MANUFACTURER AN OTHER LIABILIT IN CONNECTION WITH AN OF ITS PRODUCTS UNLESS MADE IN WRITING
AND SIGNED B AN OFFICIAL OF THE MANUFACTURER.