Lamarche ITSM User manual

106 Bradrock Dr. Des Plaines, IL 60018-1967 CPN 137588 Instr ction Drawing N mber: P25-LITSM-1
Tel: [phone] Fax: [phone] Revision A00 Rev. Date: ECN: 21619
La Marche Man fact ring Company
www.lamarchemfg.com
ITSM
ITSMITSM
ITSM
Isolation Transformer
for Marine Applications
Installation and Operation Man al

i
Important Safety Instructions
Before sing this eq ipment read all man als and other doc ments related to this nit and other eq ipment
connected to this nit. Always have a copy of a nits man al on file nearby, in a safe place; if a replacement
copy of a man al is needed it can be fo nd at the www.lamarchemfg.com.
Electrical Safety
WARNING:
Hazardo s Voltages are present at the inp t and o tp t of power systems.
When working with any live power system, follow these preca tions:
•Never work alone on any live power system, someone sho ld always be close eno gh to come to yo r aid
•Remove personal metal items s ch as rings, bracelets, necklaces, and watches.
•Wear complete eye protection (with side shields) and clothing protection.
•Always wear gloves and se ins lated hand tools.
WARNING: Lethal Voltages are present within the power system. Parts inside the nit may still be
energized even when the nit has been disconnected from the AC inp t power. Check with a meter
before proceeding. Do not to ch any nins lated parts.
•A licensed electrician sho ld be sed in the installation of any nit.
•Always disconnect the nit from the s pply, batteries and loads before performing maintenance or cleaning.
•If the nit is hot-swappable, simply remove it from the shelf for any maintenance or cleaning.
•Always ass me that an electrical connection is live and check the connection relative to gro nd.
•Be s re that neither liq ids nor any wet material come in contact with any internal components.
•Do not operate this nit o tside the inp t and o tp t ratings listed on the nit nameplate.
•Do not se this nit for any p rpose not described in the operation man al.
Mechanical Safety
•This nit or parts of the nit may get very hot d ring normal operation, se care when working nearby.
•Do not expose eq ipment to rain or snow. Always install in a clean, dry location.
•Do not operate eq ipment if it has received a sharp blow, been dropped, or otherwise damaged in any way.
•Do not disassemble this nit. Incorrect re-assembly may res lt in a risk of electric shock or fire.
Unit Location
•Allow at least 6 inches of free air on all vented s rfaces for proper cooling.
•Allow s fficient clearance to open the front panel for servicing.
•Do not operate this nit in a closed-in area or restrict ventilation in any way.
Check for amages
Prior to npacking the prod ct, note any damage to the shipping container. Unpack the prod ct and inspect the
exterior of prod ct for damage. If any damage is observed, contact the carrier immediately. Contin e the
inspection for any internal damage. In the nlikely event of internal damage, please inform the carrier and
contact La Marche for advice on the risk d e to any damage before installing the prod ct. Verify that yo have
all the necessary parts per yo r order for proper assembly.

ii
CAUTION: Fail re to properly file a claim for shipping damages, or provide a copy of the claim to La
Marche, may void warranty service for any physical damages reported for repair.
Returns for Service
Save the original shipping container. If the prod ct needs to be ret rned for service, it sho ld be packaged in its
original shipping container. If the original container is damaged/ navailable, make s re the prod ct is packed
with at least three inches of shock-absorbing material to prevent shipping damage. La Marche is not
responsible for damage ca sed by improper packaging of ret rned prod cts.
Inspection Checklist
 Enclos re exterior and interior is not marred or dented.
 There is no visible damage components.
 All internal components are sec re.
 All hardware and connections are tight.
 All wire terminations are sec re.
 All items on packing list have been incl ded.
Handling
Eq ipment can be very heavy and/or top heavy. Use adeq ate manpower or eq ipment for handling. Until the
eq ipment is sec rely mo nted, care m st be sed to prevent the eq ipment from being accidentally tipped
over.

iii
Table of Contents
Important Safety Instr ctions ................................................................................................................... i
Electrical Safety ................................................................................................................................... i
Mechanical Safety ................................................................................................................................ i
Unit Location ....................................................................................................................................... i
Check for Damages .............................................................................................................................. i
Ret rns for Service .............................................................................................................................. ii
Handling ............................................................................................................................................. ii
Table of Contents ................................................................................................................................... iii
ITSM General Description ........................................................................................................................ 1
Understanding the Model N mber ............................................................................................................ 2
Optional Accessories Incl ded in the Unit .............................................................................................. 2
Storing the ITSM .................................................................................................................................... 3
Mo nting the ITSM ................................................................................................................................. 3
Floor-Mo nting the ITSM ..................................................................................................................... 3
Changing Transformer Taps Proced re ..................................................................................................... 4
Making the AC Inp t/O tp t Connections .................................................................................................. 5
AC Inp t Connection Proced re ............................................................................................................ 6
AC O tp t Connection Proced re .......................................................................................................... 6
Appendix A: Man fact rer’s Standard Warranty ......................................................................................... 7
Appendix B: Man fact rer’s Extended Parts Warranty ................................................................................. 8
Appendix C: Doc ment Control and Revision History ................................................................................... 9

1
ITSM General escription
The La Marche Marine Isolation Transformer Series (ITSM) is designed for installation in marine and harsh
environment applications where reliable power is req ired. The transformers are designed per UL safety
req irements and man fact red sing ins lated copper windings with Class H ins lation system. The La Marche
ITSM transformers are specifically engineered to operate at f ll load and f ll harmonic rating providing years of
tro ble free service.
The f nction of the La Marche Marine Isolation Transformer is to red ce the potential between the ship and the
shore in order to achieve:
•Personnel boarding the ship, personnel aboard the ship and the ship’s metal parts will not be s bject to
electrical shock
•Electrolysis corrosion of the metal h ll or h ll fastenings will be red ced to a safe level
•Red ce EMI interference and static from affecting the ship’s electronic components
The La Marche Marine Isolation Transformer feat res a Gro nd (Faraday) Shield between the power windings.
This gro nd shield, when connected to the shore gro nd, provides protection against capacitive co pling
between the shore power and the ship’s electrical systems. This protects the ship electrical eq ipment against
shore power iss es, common mode voltage spikes, and the transfer of harmf l energy between both systems.
Wiring iagram
120/240/208 VAC inp t
120/240/208 VAC o tp t
No optional accessories

2
Understanding the Model Number
The ITSM model is coded to describe the options that are incl ded. Find the model n mber on the
nomenclat re nameplate of the isolation transformer. Then follow the chart to determine the config ration of
yo r isolation transformer.
* AC Voltage Codes: A – 120V, B – 240V, C – 480V, D – 208V, L – 220V, ZD – 600V
Optional Accessories Included in the Unit
This nit may have been o tfitted with a n mber of optional accessories or option packages. To find o t what
options this nit has (if any) refer to the very first page of the man al package.

3
Storing the ITSM
If the ITSM is to be stored for more than a few days after delivery, it sho ld be stored within its shipping
container. The location chosen for storage sho ld be within an ambient temperat re of -40 to 185° F (-40 to
85° C) with a non-condensing relative h midity of 0 to 95%.
Mounting the ITSM
When mo nting the ITSM, consider the size and weight of the nit. The floor m st be able to s pport the
weight of the nit as well as an additional safety factor. The location chosen for the ITSM sho ld be within an
ambient temperat re range of 32 to 122°F (0 to 50°C) with a non-condensing relative h midity no higher than
95%. The ITSM sho ld be mo nted in an area free of explosive materials and away from drips and splatter. The
ITSM tilizes convection cooling so a clearance of at least 6in (152mm) of free air m st be maintained on the
top, bottom, back and both sides for cooling air. Maintain 36in (914mm) or more of clearance at the front of the
nit in order to allow for operation and maintenance.
Case number
Cable Entry
Mounting
AC input AC Output
108 Top Right Top Left Floor
Floor-Mounting the ITSM
Floor mo nting the 108 cases is standard. To floor-mo nt the ITSM, install fo r bolts into the floor. Place the
ITSM on the bolts, add appropriate mo nting hardware, and tighten sec rely. The fig re below shows the
footprint and the bolt size of each ITSM case style. (All dimensions are in inches)
Case
number
im.
A
im.
B
Bolt
Size
108 18.288 11 3/8

4
Changing Transformer Taps Procedure
NOTE: This proced re refers only to ITSM Isolation Transformers that accept m ltiple inp t or m ltiple o tp t
voltages. Single inp t and o tp t Isolation Transformers do not incl de taps.
Before wiring AC power, check the taps, to be s re the Isolation Transformer is set for the correct AC inp t and
o tp t voltage. Before changing the taps, be s re that AC s pply is t rned off and locked o t. Verify that no
voltage is present by sing a voltmeter at all inp t and o tp t terminals.
Change the connections to the inp t and o tp t terminals for transformers with 120/240/208 VAC inp t and
120/240/208 VAC o tp t as shown:
120 VAC Input Voltage
a. Connect j mper JP1 from pin 1 to pin 3 of TB1 terminal
b. Connect j mper JP2 from pin 2 to pin 5 of TB1 terminal
c. Connect power line L1 to pin 1 of TB1 terminal
d. Connect power line L2 (Ne tral) to pin 5 of TB1 terminal
208 VAC Input Voltage
a. Connect j mper JP1 from pin 2 to pin 3 of TB1 terminal
b. Connect j mper JP2 from pin 2 to pin 3 of TB1 terminal
c. Connect power line L1 to pin 1 of TB1 terminal
d. Connect power line L2 to pin 4 of TB1 terminal
240 VAC Input Voltage
a. Connect j mper JP1 from pin 2 to pin 3 of TB1 terminal
b. Connect j mper JP2 from pin 2 to pin 3 of TB1 terminal
c. Connect power line L1 to pin 1 of TB1 terminal
d. Connect power line L2 to pin 5 of TB1 terminal
120 VAC Output Voltage
a. Connect j mper JP3 from pin X1 to pin X3 of TB2 terminal
b. Connect j mper JP4 from pin X2 to pin X5 of TB2 terminal
c. Connect eq ipment line L1 to pin X1 of TB2 terminal
d. Connect eq ipment line L2 (Ne tral) to pin X5 of TB2
terminal
208 VAC Output Voltage
a. Connect j mper JP3 from pin X2 to pin X3 of TB2 terminal
b. Connect j mper JP4 from pin X2 to pin X3 of TB2 terminal
c. Connect eq ipment line L1 to pin X1 of TB2 terminal
d. Connect eq ipment line L2 to pin X4 of TB2 terminal
240 VAC Output Voltage
a. Connect j mper JP3 from pin X2 to pin X3 of TB2 terminal
b. Connect j mper JP4 from pin X2 to pin X3 of TB2 terminal
c. Connect eq ipment line L1 to pin X1 of TB2 terminal
d. Connect eq ipment line L2 to pin X5 of TB2 terminal

5
Making the AC Input/Output Connections
Before making any connections to the Isolation Transformer ens re that the AC Power is off at the main
breaker box. Check that the so rce voltage and freq ency matches the voltage and freq ency listed on the
nit’s nameplate. For nits with transformer taps, verify that the tap has been set to the correct AC inp t. (See
Changing Transformer Taps proced re for details). Select wire size, sing the table below, based on the inp t
protection. These are recommended sizes. All National and Local Wiring Codes m st be followed.
NOTE: For transformers with 120/240/208 VAC inp t:
• 120 VAC inp t arrangement has inp t f ses or breaker poles wired in parallel
o Example: ACF1 = 70 amp, ACF2 = 70 amp. Inp t protection = 140 amps.
• 240/208 VAC inp t arrangement has inp t f ses or breaker poles wired in series
o Example: ACF1 = 70 amp, ACF2 = 70 amp. Inp t protection = 70 amps.

6
AC Input Connection Procedure
First connect a shore gro nd lead (for sizing se table on page 4) to the pin marked 6 on the terminal block
TB1. Then connect the ship gro nd lead to the pin marked with a GROUN symbol on the terminal block TB1.
Enclos re’s st d located by the inp t terminal block may also be sed for connecting the ship gro nd lead. R n
the inp t AC power wiring to terminals marked 1, 4 or 5 (depending on the inp t voltage) on the terminal block
TB1.
AC Output Connection Procedure
R n the eq ipment AC wiring to terminals marked X1, X4 or X5 (depending on the o tp t voltage) on the
terminal block TB2.

7
Appendix A: Manufacturer’s Standard Warranty
(I F THE INVOICE SHOWS THAT YOU HAVE PURCHASE THE E XTEN E P ARTS W ARRANTY OR IF YOU ARE INTERESTE
IN PURCHASING THE E XTEN E P ARTS W ARRANTY , SEE THE M ANUFACTURER ’ S E XTEN E P ARTS W ARRANTY )
All La Marche Man fact ring Co. eq ipment has been thoro ghly tested and fo nd to be in proper operating
condition pon 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 p rchase. In addition to the standard one (1) year
warranty, La Marche warrants its magnetics on a parts replacement basis only for nine (9) more years nder
normal se.
Any part or parts of the eq ipment (except protective devices, DC connectors and other wear-related items)
that prove defective within a one (1) year period shall be replaced witho t charge providing s ch defect, in o r
opinion, is d e to fa lty material or workmanship and not ca sed by tampering, ab se, misapplication or
improper installation. Magnetics are warranted for ten (10) years after date of p rchase. D ring 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 reimb rse the owner or any other person for
work performed.
Sho ld a piece of eq ipment req ire major component replacement or repair d ring warranty period, these can
be handled in one of three ways:
1. If the P rchaser elects to take the responsibility of repairing the eq ipment and req ests replacement part(s), P rchaser
or Sales Representative m st contact Factory for ret rn a thorization and a p rchase order m st be iss ed.
Replacement part(s) will be promptly shipped and invoiced. After the defective part(s) are ret rned and inspected at the
Factory, if the defect(s) were d e to fa lty material or workmanship, credit will be iss ed.
2. The eq ipment can be ret rned to the La Marche factory to have the inspections, parts replacements and testing
performed by factory personnel. Sho ld it be necessary to ret rn a piece of eq ipment or parts to the factory, the
c stomer or sales representative m st obtain a thorization from the factory. If pon inspection at the factory, the
defect was d e to fa lty material or workmanship, all repairs will be made at no cost to the c stomer d ring the first
year. If the Extended Warranty is p rchased, the parts req ired for repair will also be at no cost b t La Marche will
notify the P rchaser of the costs of Labor to replace the defective part(s). A P rchase Order to cover this labor is
req ired before repairs will be initiated. Transportation charges or d ties shall be borne by P rchaser.
3. If the p rchaser elects not to ret rn the eq ipment to the factory and wishes a factory service representative to make
adj stments and/or repairs at the eq ipment location, La Marche's field service labor rates will apply. A p rchase order
to cover the labor and transportation cost is req ired prior to the deployment of the service representative.
In accepting delivery of the eq ipment, the p rchaser ass mes f ll responsibility for proper installation,
installation adj stments and service arrangements. Sho ld minor adj stments be req ired, the local La Marche
sales representative sho ld be contacted to provide this service only.
All sales are final. Only standard La Marche chargers will be considered for ret rn. A 25% restocking fee is
charged when ret rn is factory a thorized. Special chargers are not ret rnable.
In no event shall La Marche Man fact ring Co. have any liability for conseq ential damages, or loss, damage or
expense directly or indirectly arising from the se of the prod cts, or any inability to se them either separately
or in combination with other eq ipment or materials, or from any other ca se. In addition, any alterations of
eq ipment made by anyone other than La Marche Man fact ring Co. renders this warranty n ll and void.
Fail re to follow safety preca tions specified by the man fact rer d ring replacement of components or
verifications renders this warranty n ll and void.
La Marche Man fact ring Co. reserves the right to make revisions in c rrent prod ction of eq ipment, and
ass mes no obligation to incorporate these revisions in earlier models.
The fail re of La Marche Man fact ring Co. to object to provisions contained in c stomers' p rchase orders or
other comm nications shall not be deemed a waiver of the terms or conditions hereof, nor acceptance of s ch
provisions.
THE ABOVE WARRANTY IS EXCLUSIVE, SUPERSE ES AN IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESSE OR IMPLIE , INCLU ING ANY IMPLIE WARRANTY OF
MERCHANTABILITY OR FITNESS. NO PERSON, AGENT OR EALER IS AUTHORIZE TO GIVE ANY
WARRANTIES ON BEHALF OF THE MANUFACTURER, OR TO ASSUME FOR THE MANUFACTURER
ANY OTHER LIABILITY IN CONNECTION WITH ANY OF ITS PRO UCTS UNLESS MA E IN WRITING
AN SIGNE BY AN OFFICIAL OF THE MANUFACTURER.

8
Appendix B: Manufacturer’s Extended Parts Warranty
(THIS IS YOUR WARRANTY IF YOU HAVE PURCHASE THE EXTEN E PARTS WARRANTY AS SHOWN ON OUR
INVOICE TO YOU OR IF YOU PURCHASE THE EXTEN E PARTS WARRANTY ANYTIME URING THE FIRST 12
MONTHS AFTER THE ATE OF OUR INVOICE)
All La Marche Man fact ring Co. eq ipment has been thoro ghly tested and fo nd to be in proper operating condition pon
shipment from the factory. Any part or parts of the eq ipment (except protective devices, d.c. connectors and other wear-related
items) that prove defective within a one (1) year period from the date of o r invoice to yo shall be replaced witho t charge
providing s ch defect, in o r opinion, is d e to fa lty material or workmanship and not ca sed by tampering, ab se, misapplication
or improper installation. Labor and parts are covered d ring 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.
uring 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 are warranted for ten (10) years after the date of o r invoice to yo . The defect in the magnetics m st, in
o r opinion, be d e to fa lty material or workmanship and not ca sed by tampering, ab se misapplication, or improper installation.
Labor and replacement magnetics are covered nder the extended warranty d ring the initial five (5) year period from the date of
o r invoice to yo . D ring the next five (5) years of this ten (10) year warranty period for magnetics, the warranty covers parts
replacement only, no labor or other services are provided by La Marche, nor is La Marche obligated to reimb rse the owner or any
other person for work performed.
Sho ld a piece of eq ipment req ire major component replacement or repair d ring the extended warranty period, these can be
handled in one of three ways:
1. If the P rchaser elects to take the responsibility of repairing the eq ipment and req ests replacement part(s), P rchaser or Sales
Representative m st contact Factory for ret rn a thorization and a p rchase order m st be iss ed. Replacement part(s) will be
promptly shipped and invoiced. After the defective part(s) are ret rned and inspected at the Factory, if the defect(s) were d e to fa lty
material or workmanship, credit will be iss ed.
2. The eq ipment can be ret rned to the La Marche factory to have the inspections, parts replacements and testing performed by factory
personnel. Sho ld it be necessary to ret rn a piece of eq ipment or parts to the factory, the c stomer or sales representative m st
obtain a thorization from the factory. If pon inspection at the factory, the defect was d e to fa lty material or workmanship, all
repairs will be made at no cost to the c stomer nder the Extended Warranty. Transportation charges or d ties shall be borne by
P rchaser.
3. If the p rchaser elects not to ret rn the eq ipment to the factory and wishes a factory service representative to make adj stments
and/or repairs at the eq ipment location, La Marche's field service labor rates will apply. A p rchase order to cover the labor and
transportation cost is req ired prior to the deployment of the service representative.
In accepting delivery of the eq ipment, the p rchaser ass mes f ll responsibility for proper installation, installation adj stments and
service arrangements. Sho ld minor adj stments be req ired, the local La Marche sales representative sho ld be contacted to
provide this service only.
All sales are final. Only standard La Marche nits will be considered for ret rn. A 25% restocking fee is charged when ret rn is
factory a thorized. Special nits are not ret rnable.
In no event shall La Marche Man fact ring Co. have any liability for conseq ential damages, or loss, damage or expense directly or
indirectly arising from the se of the prod cts, or any inability to se them either separately or in combination with other eq ipment
or materials, or from any other ca se. In addition, any alteration of eq ipment made by anyone other than La Marche
Man fact ring Co. renders this warranty n ll and void.
La Marche Man fact ring Co. reserves the right to make revisions in c rrent prod ction of eq ipment, and ass mes no obligation to
incorporate these revisions in earlier models.
The fail re of La Marche Man fact ring Co. to object to provisions contained in c stomers' p rchase orders or other
comm nications shall not be deemed a waiver of the terms or conditions hereof, nor acceptance of s ch provisions.
THE ABOVE WARRANTY IS EXCLUSIVE, SUPERSE ES AN IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSE OR
IMPLIE , INCLU ING ANY IMPLIE WARRANTY OF MERCHANTABILITY OR FITNESS. NO PERSON, AGENT OR
EALER IS AUTHORIZE TO GIVE ANY WARRANTIES ON BEHALF OF THE MANUFACTURER, OR TO ASSUME FOR THE
MANUFACTURER ANY OTHER LIABILITY IN CONNECTION WITH ANY OF ITS PRO UCTS UNLESS MA E IN WRITING
AN SIGNE BY AN OFFICIAL OF THE MANUFACTURER.

9
Appendix C: ocument Control and Revision History
Part N mber: 137588
Instr ction N mber: P25-LITSM-1
Iss e ECN: 21619 – 11/17