Vanner ITC24-360 User manual

INCORPORATED
®
Owner’s Manual
ITC-Series Inverter Page 1 Owner‟s Manual 10/7/05
ITC-Series
Inverter/Charger System
Models ITC12-2100 and ITC12-3200
ITC24-3600 and SP00172
Vanner Incorporated
4282 Reynolds Drive
Hilliard, Ohio 43026
[phone]
1-800-ACPOWER
www.vanner.com
Owner‟s Manual D911149
October 7, 2005
File D911149-C.doc

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ITC-Series Inverter Page 2 10/07/05
Notes

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Table of Contents
ITC-Series Inverter Page 3 Owner‟s Manual 10/7/05
Table of Contents
SYSTEM FEATURES AND SPECIFICATIONS ....................................................................................................5
GENERAL DESCRIPTION ...........................................................................................................................................5
SYSTEM FEATURES.....................................................................................................................................................6
SPECIFICATIONS........................................................................................................................................................7
COMPONENT IDENTIFICATION/LOCATION...............................................................................................................7
DESCRIPTION OF OPERATION..........................................................................................................................13
INVERTER................................................................................................................................................................13
BATTERY CHARGER................................................................................................................................................14
BATTERY TEMPERATURE SENSOR OPTION ...........................................................................................................15
AUTOMATIC POWER MANAGEMENT (APM).........................................................................................................15
GENSTART ..............................................................................................................................................................16
CHARGER AND APM PROGRAMMING............................................................................................................16
CUSTOMER WIRING IDENTIFICATION ..........................................................................................................17
AC INPUT &OUTPUT WIRING ...............................................................................................................................18
DC (BATTERY)WIRING..........................................................................................................................................18
FRONT PANEL CONTROL/DISPLAY OUTLET..........................................................................................................18
SYSTEM ON/OFF SWITCH .....................................................................................................................................19
REMOTE SIGNAL CONTACTS ..................................................................................................................................19
INSTALLATION.......................................................................................................................................................19
BASIC GUIDELINES .................................................................................................................................................19
DC WIRING.............................................................................................................................................................20
AC WIRING.............................................................................................................................................................22
SYSTEM START-UP AND TESTING ...........................................................................................................................23
BATTERY TEMPERATURE SENSOR .........................................................................................................................24
GENERAL INFORMATION SECTION................................................................................................................24
GENERIC INVERTER DESCRIPTION ........................................................................................................................24
INVERTER SIZING....................................................................................................................................................25
DC POWER CONSUMPTION.....................................................................................................................................25
BATTERY TERMINOLOGY AND RATINGS................................................................................................................26
SIZING THE INVERTER BATTERY............................................................................................................................27
BATTERY AND CHARGING SYSTEM CONSIDERATIONS..........................................................................................28
BATTERY CHARGING GUIDELINES.........................................................................................................................28
MAINTENANCE & TROUBLESHOOTING ........................................................................................................30
PREVENTATIVE MAINTENANCE..............................................................................................................................30

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Figures
F 1 Figure 1.1-1 System Diagram................................................................................................................ 5
F 2 Figure 1.4-1 Component Location......................................................................................................... 8
F 3 Figure 1.4-2 ITC Control/Display Unit.................................................................................................... 9
F 4 Figure 1.4-3 ITC Control/Display Unit Component Identification........................................................... 9
F 5 Figure 1.4-4 Suspended Mounting Configuration................................................................................ 10
F 6 Figure 1.4-5 Bench Mount Configuration............................................................................................. 10
F 7 Figure 1.4-6 Suspended Dimensions in Inches................................................................................... 11
F 8 Figure 1.4-7 Bottom Mount Dimensions in Inches .............................................................................. 11
F 9 Figure 1.4-8 Control/Display Unit Dimensions in Inches ..................................................................... 11
F 10 Figure 1.4-9 Customer Terminations................................................................................................. 12
F 11 Figure 2.2-1 Charging/Voltage Curves.............................................................................................. 14
F 12 Figure 2.4-1 APM/Charger/Config DIP Switch Settings .................................................................... 17
F 13 Figure 3-1 Customer Terminations.................................................................................................... 17
F 14 Figure 4.1-1 Shelf Mount Configuration............................................................................................. 20
F 15 Figure 6.1-1 Options Terminal Strip .................................................................................................. 30
Tables
T 1 Figure 2.2-2 Battery Charger Factory Setpoints.................................................................................. 15
T 2 Table 4-1 DC Cable and Fuse Sizing Chart........................................................................................ 20

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ITC-Series Inverter Page 5 Owner‟s Manual 10/7/05
Introduction
Thank you for purchasing the Vanner ITC-Series inverter/charger system. We are confident that you will be
satisfied with its performance and its many features. With proper installation and care, you can look forward to
years of service from this high performance product.
This document will describe the operation, technical specifications and installation procedures for the ITC-
Series inverter/charger system. If you require additional information please contact your dealer, or contact
Vanner directly at the location shown on the cover of this manual.
System Features and Specifications
General Description
The ITC-Series system consists of a DC to AC true sine wave inverter, a battery charger, an automatic AC
transfer switch, and a microprocessor based controller. An important feature of this system is the ITC-Series
Control/Display Unit user interface.
F 1Figure 1.1-1 System Diagram
Control/Relay
Board
ITC Series Inverter System
AC Out 120 Vrms
Genstart Contact
120 Vrms Input for Charger
Control Display Panel
+12/24 VDC
Low Battery Indicator / Fan On Contact
Overload Overload
Low
Battery Bulk
Fault Fault
Inverter
On/Off Charger On/Off
Fuse
12/24 Volt
Battery
CB-1
CB-2
Dead
Battery
Supply
Microprocessor
Control System
for Inverter/
Charger
On/Off Switch
Optional Remote Switch
GFCI
Signal
Relays
Power
Stage
Transformer
CB-3
30A
30A
15A

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System Features
Inverter
The inverter consists of a sine wave inverter that supplies power when AC loads are applied. Depending on
your model, the inverter develops 2100, 3200 or 3600 watts of continuous power. Using TruSine®
technology, a very high quality sine wave is produced. Total harmonic distortion (THD) is less than 4.0
percent.
Battery Charger with Automatic Power Management
The high efficiency, multi-stage battery charger allows automatic charging of flooded lead acid and gel type
batteries. The efficient 0.85 power factor or PF, compared to typical 0.59PF on triac pulse type chargers,
allows full charger output from a 30-amp AC source. The system‟s Bulk, Absorption, and Float charge cycle
quickly charges and maintains the battery bank. An Equalization charge cycle is available for flooded lead
acid battery maintenance. In addition, there is an optional battery temperature sensor to reduce battery
float voltage as temperature increases above 25° Celsius.
Automatic Power Management (APM) monitors the AC Input current and will reduce the battery charger
output as needed to keep the AC input current below the preset APM Limit.
GenStart Contact
The GenStart feature provides a start/stop signal to control an automatic generator. The start/stop signal
consists of a contact closure to start the Gen. Start based on battery voltage of 12.3 (24.6) VDC. The
GenStart turns off when the battery charging current falling below 10 amps.
Low Battery or Fan On Contact
The Low Battery contact allows remote monitoring of the Inverter‟s battery status. The contact will close
when battery voltage falls below 11.0 (22.0) volts. This will alert the user to take appropriate measures to
avoid shutdown of the Inverter at 10.5 (21.0) VDC. The SP00172 offers a Fan On contact instead of the
Low Battery contact for turning on an external fan or blower when the ITC‟s fan is on.
Remote Power Switch
This loop between Options Terminal 7 and 8 (left side of Options Terminal) allow remote control of the
system On/Off. Tying these two terminals together or optionally, tying the terminal 7 (Remote Switch) to
battery ground applies power to the unit.
Note: The Front Panel switch will always overrule the remote switch in terms of disabling the unit.
System Control
The ITC contains a System ON/OFF Switch located in the front of the ITC. This switch is used to turn the
control power ON and OFF. This power switch also has a break out loop for a series switch that can be
placed in a remote location from the unit (See Remote Power Switch above). A control microprocessor
provides a variety of protection interlocks, system fault detection/reporting/recovery, storage of system data
parameters, and high-speed data communications to the ITC Control/Display Unit. This Control/Display
Unit also has individual on/off switches for independent Inverter and Charger control. The ITC will protect
itself in the event of any overload, over temperature, high or low battery voltage condition.
ITC Control/Display Unit
The ITC Control/Display Unit is a user interface that is connected to the ITC Control Board via a 6-wire
modular cable. This Control/Display unit can be an integral part of the Inverter or can be removed and
mounted in a remote area to allowing remote system operation. Two of these units can talk to the System
Control Board one display would be configured as a Master, and the other as Slave. The configuration
switches on top of the Master allow programming of the Charger current, Automatic Power Management
and battery type settings.
NOTE: It should be noted that if the Control Display unit is taken out of the front of the unit, the cover plate

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(Vanner Part # D011339) must be installed in it‟s place to insure that debris does not enter the unit through
the opening and to maintain proper airflow through the unit.
Specifications
Model
ITC12-2100
ITC12-3200
ITC24-3600
SP00172
AC OUTPUT
Voltage (RMS)
120 VAC
Frequency
60 Hz ± 0.5%
AC Waveform
Sine Wave
Total Harmonic Distortion (THD)
Less than 4.0% @ full power
Power Factor Allowed
-1 to 1
Continuous Output Rating @ 25ºC
Phase to Neutral
2100 watts
(17.5 amps)
3200 watts
(26.7 amps)
3600 watts
(30.0 amps)
Surge Capacity @ 25ºC (3 sec.)
6400 watts
DC INPUT:
Operating Range (12 Volt Nominal)
10.5 to 17 Volts
21.0 to 31 Volts
No Load, Inverter ON
4 amps
3 amps
No Load, Inverter OFF
0.30 amps
0.30 amps
Full power
208 amps
350 amps
195 amps
INVERTER EFFICIENCY @ Nom.
200 watts
77%
77%
500 watts
88%
84%
700 watts
88%
87%
1000 watts
88%
89%
1500 watts
86%
89%
2000 watts
84%
89%
2500 watts
NA
81%
88%
3000 watts
NA
78%
87%
3200 watts
NA
77%
87%
3600 watts
NA
NA
86%
AC INPUT
Voltage
120 Volts nominal
Frequency
60 Hz ± 12.5% (52.5 to 67.5)
AC TRANSFER SWITCH
Power Rating
30 amps @ 120 VAC
Transfer Time
Less than 40 milliseconds
BATTERY CHARGER
Charger Output Current maximum
60, 80 or 110 amps
AC Input Current maximum
30 amps (0.88PF @ rated output)
SYSTEM
Ambient Operating Temperature
-40 to+40C (-40 to+104F)
Cooling Exhaust Fan
Thermostatically controlled
Mounting
Shelf or suspended
Dimensions Bottom mount position)
8 1/4”H x 18 7/16”W x 13 5/8”D
Weight
66 pounds
Component Identification/Location
The Figures below show the location of the various components of the ITC system.

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I NCO RPO RATED
Inverter
On/Of f Charger On/Of f
Overl oad
Low
Ba tte ry
Fa u lt
Overl oad
Bulk
Fa u lt
1
TOP VIEW
3 6 7 8 94 5
FRONT VIEW 13
2
14
15
16
10
LEFT SIDE VIEW RIGHT SIDE VIEW
11 12
15
16
OPTIONS CABLE ENTRY
CHASSIS GROUND
ITEM #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
DESCRIPTION
BATTERY TERMINAL ACCESS
REMOTE CABLE INPUT
CONTROL/DISPLAY PANEL
INVERTER ON/OFF SWITCH
CHARGER ON/OFF SWITCH
SYSTEM ON/OFF SWITCH
AC INPUT BREAKER (CB-1)
AC OUTPUT BREAKER (CB-2)
GFCI BREAKER (CB-3)
AC INPUT CABLE ENTRY
BATTERY +
BATTERY -
GFCI OUTLET
AC OUTPUT CABLE ENTRY
OPTIONS CABLE ENTRY
CHASSIS GROUND
F2Figure 1.4-1 Component Location

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Equalize button access
Through Access hole.
Overload Overload
Low Battery Bulk
Fault Fault
INCORPORATED
Inverter
On/Off Charger On/Off
On/Off Switch for Inverter
On/Off Switch for Charger
Serial Communications
Connection
Configuration Switches
for Programming
Configuration Switches Access
Configuration Switches
Note: Power Must be
Cycled to read a new
DIP Switch value
F 3Figure 1.4-2 ITC Control/Display Unit
F 4Figure 1.4-3 ITC Control/Display Unit Component Identification
ITEM
DESCRIPTION
1
Inverter Indicator
Light
Solid when on, flashes when enabled but not on
2
Inverter On/Off
Button
Enables/Disables Inverter Function
3
Charger Indicator
Light
Solid when on, flashes when enabled but not on
4
Charger On/Off
Button
Enables/Disables Charger Function
5
Overload Light
Indicates if Inverter Overloaded
6
Low Battery/Bulk
Light
Dual Purpose –Indicates Low Battery in Inverter Mode –In charger mode, if on indicates that
Charger is in Bulk Mode and if in Equalize, this light flashes.
7
Fault Light
Dual Purpose –Indicates that a fault has occurred in the inverter or Charger –Could be a Over
Temperature shutdown, Low/High Battery Shutdown, Power Stage Fault.
8
Equalize Button
Access
This is used to enable the equalization cycle on the battery during charging.
Overload Overload
Low Battery Bulk
Fault Fault
INCORPORATED
Inverter
On/Off Charger On/Off
1
2
3
4
5
6
7
8

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Versatile Mounting System
The mechanical system used for mounting the ITC-Series allows both shelf and under-counter mounting,
while still allowing access to user AC and control terminals through a removable front cover.
ACCESS PANEL REMOVABLE FROM
FRONT WHEN UNDER TABLE
MOUNTED.
DOCKED DISPLAY/CONTROL PANEL
`
DC TERMINATIONS
POWERON/OFF SWITCH
WithIndicator
F 5Figure 1.4-4 Suspended Mounting Configuration
Mounting Feet shown in Benchtop
Mounting Configuration
Access Cover To DC
Terminations
F 6Figure 1.4-5 Bench Mount Configuration

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18
10 7/8
19 1/4
13 5/8 16 3/4
8 1/8
7 5/16 8 3/4
ITC DIMENSIONS FOR SUSPENDED MOUNTING
F 7Figure 1.4-6 Suspended Dimensions in Inches
19 1/4
18
10 7/8
16 3/413 5/8
7 5/16 8
ITC DIMENSIONS FOR SHELF MOUNTING
F 8Figure 1.4-7 Bottom Mount Dimensions in Inches

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F 9 Figure 1.4-8 Control/Display Unit Dimensions in Inches
GND
OPTIONS TERMINAL STRIP
P14
HOT NEU GND
AC INPUT
P15
HOT NEU GND
AC OUTPUT
P6
P5
REMOTE MASTER AND
SLAVE CONNECTORS
REMOTE SWITCH
REMOTE LED
COM N/O N/O
LOW BATT/
FAN ON
COM
GENSTART
P3
BATTERY TEMP.
SENSOR
P7
F 10 Figure 1.4-9 Customer Terminations
Overload Overload
Low Battery Bulk
Fault Fault
INCORPORATED
Inverter
On/Off Charger On/Off
3.78
3.50
3.38
3.10 1.18
0.156 DIA., TYP

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DESCRIPTION OF OPERATION
Inverter
The System ON/OFF Switch, located on the front panel, allows the user to turn the system power ON and OFF
and to reset the system after a fault.
The Charger ON/OFF and Inverter ON/OFF buttons, located on the Control/Display Unit enable or disable the
Charger or Inverter Functions. The corresponding light next to Inverter/Charger buttons will be steadily on
when the unit is in the Inverter or Charger mode. These Inverter and Charger lights will blink if the mode is not
currently on, but are enabled (Example: The Inverter light will blink when the Inverter is Enabled, the ITC is
plugged into the utility, and the Charger is Active).
The Inverter AC Output Circuit Breaker is a 1 pole, 30-amp breaker marked “CB-2” on the front unit. The CB-2
breaker protects the Inverter AC output and a second Breaker (CB-1) protects the Battery Charger AC input
against a severe overload. This CB-1 breaker also protects AC Pass through Power. If this CB-1 breaker trips
during charger operation, it must be reset.
Inverter Protective Interlocks
The Inverter operation is protected by a series of safety interlocks that protect against most failures such as
overloads, over-temperature conditions or other conditions where the unit may be asked to operate outside
safe battery voltages. These faults will trigger a display of the “Fault” and or “Overload” Lights on the
Control/Display panel and are listed below:
Low Battery The inverter continually monitors battery voltage. If battery voltage falls below the Low
Battery Shutdown 10.5 (21.0) VDC setpoint the inverter will shut OFF. Auto-restart will
restart the inverter after battery voltage rises above the Low Battery Warning 11.0 (22.0)
VDC setpoint (after 5 minutes).
High Battery The inverter will shut OFF if battery voltage rises above the High Battery 16.0 (31.0) VDC
setpoint.
Over Temperature The inverter will shut OFF if internal temperature sensors detect a high temperature
condition that could damage the inverter.
Over Load If a short circuit or an overload is applied to the inverter‟s output the inverter will shut down.
Battery High The unit has shut down due to the Battery voltage is above High Battery Shutdown setpoint
of 16.0 (31.0) VDC.
Battery Low Warn. Battery voltage is below Low Battery Warning setpoint and soon may reach Low Battery
Shutdown setpoint of 10.5 (21.0) VDC.
Current Limit Inverter AC output current is at the Maximum Current allowed and is presently in “Surge”.
The AC voltage will decrease if load increases. Overload Shutdown will occur if voltage
goes below 105VAC for 3 second.
Overload Inverter has shut down due to overload. High AC load caused inverter output voltage to fall
below tolerance for three seconds.
Hardware Fault Internal protection circuit activated or power brick high temperature will shut down system.
Overheat The SCR plate or power brick overheating will cause the system to shutdown.
If the unit has faulted there are the two following options:
1. Auto-restart After shutting down for any of the above fault conditions, the inverter will try to restart itself
every 5 minutes if Auto-Restart is Enabled and the fault condition no longer exists.
2. Manual restart You can manually restart the system after the fault conditions are removed. Reset the
inverter by turning the System ON/OFF Switch OFF and then ON.

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Battery Charger
The battery charger‟s advanced design incorporates an automatic, multi-stage charger. This design enables
the unit to automatically charge batteries, which maintains the battery‟s integrity and reduces the likelihood of
premature battery failure. In addition, the battery charger can utilize the remote battery temperature sensor to
reduce the float voltage based on battery temperature. The battery charger is designed to be used with lead-
acid type batteries including sealed and gel types, but not for nickel-cadmium (Ni-Cad) or nickel-iron types.
Battery Charging Sequence
Stage 1: Bulk Charge Stage
The charger always starts in the Bulk charge stage each time shore power becomes present and/or each time
the charger is turned ON. In the Bulk charge stage, the system charges at the „Bulk Charge Amps‟ setpoint until
the battery voltage rises to the „Bulk Charge Voltage‟ setpoint. Then the voltage is held at that setpoint until
charging current has fallen to 5 amps above the „Battery Absorption Amps‟. This ends the Bulk Charge Stage
and begins the Absorption Charge Stage. The charger will not enter the Bulk Stage again until shore power is
re-applied, or until the charger or the system is turned ON again.
VOLTAGE
CURRENT
TIME
BULK
ABSORPTION
(OPTIONAL)
EQUALIZE
FLOAT
TRIGGER POINT
F 11 Figure 2.2-1 Charging/Voltage Curves
Stage 2: Absorption Charge Stage
The Absorption Charge Stage provides a controlled “overcharging” of the battery that is necessary to bring the
battery up to full charge. The battery is charged at the „Absorption Charge until one of following three conditions
occur that signals the end of the Absorption Stage;
Time: The Absorption Maximum Time setpoint is reached
Time: The Absorption Charge Stage time has reached ½ of the duration of the Bulk Charge Stage.
Voltage: Battery voltage reaches the „Absorption Voltage‟ setpoint
Stage 2A Equalize Charge Cycle
When Equalize Mode is ENABLED (by inserting a paperclip or similar device through the “master”
Control/Display unit Equalize hole), one Equalize Charge Cycle will follow the Absorption Charge Stage. The
Equalize Cycle will last for the „Equalize Time‟ setpoint of 15 minutes. Equalize Mode will automatically switch to
DISABLED at the end of the Equalize Charge Cycle. During the Equalize Cycle the battery is charged at the

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„Absorption Charge Amps‟ setpoint and the Equalize Voltage 15.5 (30.0) VDC setpoint.
The Equalize Charge Cycle provides a deliberate overcharging of the battery to remove sulfate, which
accumulates on the battery plates through normal use. Equalizing returns battery cells to equal performance
levels, which improves battery performance and extends battery life. Consult the battery manufacturer for their
recommendation regarding how often the Equalize Cycle should be performed.
CAUTION
Do not equalize sealed (valve regulated lead acid, AGM or gel) batteries! Consult battery manufacturer for
equalizing guidelines. Do not equalize more often than approximately once a month. Check battery fluids after
equalizing is complete, as gassing will occur. Use Equalize Mode only if batteries are in a well ventilated area!
Stage 3: Float Charge Stage - Maintenance Mode
In the Float Stage the charging voltage is reduced to the „Float Charge Voltage‟ setpoint and charging current is
limited to the „Absorption Charge Amps‟ setpoint. The charger will remain in the Float Stage until shore power
is reapplied, or until the charger or system is turned OFF and then ON again.
Charging Setpoints
The ITC‟s battery charger factory setpoints are for wet batteries. Do not use GEL type batteries without
changing the factory setpoints via the configuration switches.
CAUTION
Do not operate DC loads, such as DC lights, pumps, etc., during battery charging. The loads may cause
overcharging by preventing the charging stages from reaching their „trigger points‟ or may cause the battery to
run down even though the charger is ON.
T 1 Figure 2.2-2 Battery Charger Factory Setpoints
Guideline
SP00172
24V
Factory
Setpoint
(for Wet
Battery)
Factory
setpoint for
Gel/AGM
Battery
Units
12V
24V
12V
24V
Bulk Charge Volts
28.6
14.2
28.4
14.1
28.2
VDC
Bulk Charge Current
20% C Rate
60
80
60
80
80
Amps
Absorption Charge Volts
28.6
14.5
29.0
14.2
28.4
VDC
Absorption Charge Current
55
40
55
40
40
Amps
Absorption Maximum Time
10
10
10
10
10
Minutes
Float Charge Volts
26.6
13.2
26.4
13.7
27.4
VDC
Equalize Volts
Wet only
N/A
15.5
31.0
N/A
N/A
VDC
Equalize Maximum Time
Wet only
N/A
15
15
N/A
N/A
Minutes
Battery „C Rate‟ is equal to battery Amp Hour capacity.
Battery Temperature Sensor Option
The battery temp sensor is designed to reduce the float voltage when the battery temperature exceeds 25°
Celsius. No reduction in float voltage should occur below 25°C (77° F). The battery temp sensor plugs into P7,
which is located on the left side of the control board. See F 13 Figure 3-1 Customer Terminations. The battery
temperature sensor and 35‟ cable kit part number is ITC-BTS. Individually, the temperature sensor part number
is D012684 and the cable part number is D012638.
Automatic Power Management (APM)
A key feature of the battery charger operation is Automatic Power Management (APM). This feature monitors
the AC input current and will reduce the battery charger output as necessary to keep the AC input current under
the APM setpoint. The APM circuit will not limit power to the passthrough AC loads. If the passthrough AC
loads exceed 30 Amp, the battery charger output will be reduced to zero and the breaker may trip.

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GenStart
It should be noted that the Generator Start Operation is designed to minimize the generator run time, so at the
present set points there is no Absorption stage per se. Therefore, the batteries must be periodically
conditioned by leaving the generator on, or charging them with another system.
The GenStart feature is designed for use in installations where a generator is used to provide AC input power
for battery charging. The GenStart feature provides a contact closure to signal the generator to start when
battery voltage falls below the „Generator Start Volts‟ 11.0 (22) VDC setpoint. The GenStart contacts open
when bulk charging current fall below the „Generator End Amps‟ 20 Amp DC setpoint. The Bulk charging
current is checked every 4 minutes, therefore the minimum generator ON time is 4 minutes. The contacts are
NEC Class 2, rated 2 amps at 24 VDC.
It should be noted that the GenStart contacts are shown in Figure 1.4-9 Customer Terminations, and likewise a
similar set of Normally Open Contacts are available to indicate a “Low Battery” or “Fan On” condition.
Caution
The battery charging process will be affected if 12 (24) VDC loads are being powered during battery
charging. The increased charger output, required to power those loads, may keep the charger from reaching
the „Generator End Amps‟ setpoint.
Charger and APM Programming
The chart below shows the control switch settings for programming the ITC Charger and APM settings.
NOTE: It should be noted that the power switch on the front of the unit must be cycled to read in the new
Control Switch settings into memory. The new values will not be recognized until this takes place.
The first 4 (1-4) switches program in the Maximum Charger Current and the next 4 (5-8) program in the APM
Current Limit.
The next switch (switch 9) is for selecting either Wet or Gel type batteries.
The next switch (switch 10) is reserved for future expansion.
The next switch (switch 11) is reserved for future expansion.
The next switch (switch 12) is reserved for selecting a Master/Slave remote with multiple Control/Display Units.
Note: The figure below is also available on the Rear of the Control/Display Unit.

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|- ON
O - OFF
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
5
|
|
|
|
|
|
|
|
O
O
O
O
O
O
O
O
6
|
|
|
|
O
O
O
O
|
|
|
|
O
O
O
O
7
|
|
O
O
|
|
O
O
|
|
O
O
|
|
O
O
8
|
O
|
O
|
O
|
O
|
O
|
O
|
O
|
O
DIPSWITCH
POSITION
APM
CURRENT
(AMPS)
5
10
16
21
26
32
37
42
48
53
58
64
69
75
80
1
|
|
|
|
|
|
|
O
O
O
O
O
O
O
O
2
|
|
|
O
O
O
O
|
|
|
|
O
O
O
O
3
|
O
O
|
|
O
O
|
|
O
O
|
|
O
O
4
O
|
O
|
O
|
O
|
O
|
O
|
O
|
O
DIPSWITCH
POSITION
CHARGER
CURRENT
(AMPS)
BATTERY TYPE
SPARE
WETGEL
OFFON
SPARE
CHARGER
OUTPUT
CURRENT
SELECTION
MASTER/SLAVE
APM
CURRENT
SELECTION
1
2
3
4
5
6
7
8
9
10
11
12
DIPSWITCH FUNCTION SWPOSITION
OFFON
OFFON
OFFON
SLAVEMASTER
Note: After a new
switch setting is set,
the power switch
mustbe cycled on the
main unit for the new
setting to take effect.
F 12 Figure 2.4-1 APM/Charger/Config DIP Switch Settings
The graphic to the left indicates the factory defaults.
Switches 1 through 4 show a maximum charger current
setting. Switches 5 through 8 indicate 30-amp automatic
power management. Switch 9 has selected Wet Cell
battery configuration. Switch number 12 indicates
“Master” display/control unit.
F 13 Figure 3-1 Customer Terminations
All field wiring enters the ITC housing through the side panels.
Customer Wiring Identification
1 2 3 4 5 6 7 8 9 10 11 12
1
0

INCOR POR ATED
®
Installation
ITC-Series Inverter Page 18 10/07/05
AC Input & Output Wiring
The AC wiring compartment is located on the front right side of the unit. A removable access cover covers this
compartment. Two cable clamps are installed for the AC input and AC output wiring. The removable access
cover can be removed by simply removing the screws on the front panel of the unit (ONLY!). There is no need
to remove screws from the top or sides of the unit to gain access to the AC wiring compartment. Inside the
compartment is a terminal strip for making AC input and AC output connections (P14 and P15).
NOTE
The AC output voltage and the required AC input voltage of the ITC is 120 VAC, 60Hz.
DC (Battery) Wiring
A DC wiring compartment is located behind the wiring panel on the right side of the unit. The compartment
contains a removable access cover on the top of the inverter and two cable clamps for the battery positive and
battery negative cables. The inverter‟s battery cable terminal studs are 5/16-18 and can accommodate Cable
sizes up to 250 MCM.
Front Panel Control/Display Outlet
This is a RJ-11 (6-Wire) jack (P5) for communications with the Control/Display Unit. A secondary
GND
OPTIONS TERMINAL STRIP
P14
HOT NEU GND
AC INPUT
P15
HOT NEU GND
AC OUTPUT
P6
P5
REMOTE MASTER AND
SLAVE CONNECTORS
REMOTE SWITCH
REMOTE LED
COM N/O N/O
LOW BATT/
FAN ON
COM
GENSTART
P3
BATTERY TEMP.
SENSOR
P7

INCOR POR ATED
®
Installation
ITC-Series Inverter Page 19 Owner‟s Manual 10/7/05
Control/Display unit can be plugged into the P6 jack who would be configured as a slave.
System ON/OFF Switch
Use this rocker switch to turn the system ON and OFF and to reset the system. This switch is located on the
front panel of the system. If placed in the “OFF” position, this switch will override the operation of a remote
ON/OFF switch connected to terminals 7 and 8 of the Options connector shown in Figure 3-1 –Customer
Terminations.
WARNING: The System ON/OFF Switch does not interrupt the DC input power to the system, so it must
be noted that dangerous DC voltages still exist inside the unit, even if the power switch is turned off.
Remote Signal Contacts
Terminal Contacts provide capabilities for Remote Inverter Power ON/OFF and Power indication, Remote Low
Battery Warning or Fan On indication, and GenStart control. Contacts are rated 2 amps at 24 volts, Class 2
circuits. Wiring connections are made through an 8 position Options terminal block. Screw pressure-clamp
terminals accept up to 14-gauge wire.
A remote power switch will control the system by tying terminals 7 and 8 of the options connector (shown in
Figure 3-1) together. This will actuate an internal relay that turns the control power on. The Power On/Off
switch on the front panel defeats this remote switch.
In addition, a terminal for a remote LED indicator is provided (terminal 6) with a current limiting resistor integral
to the circuit.
INSTALLATION
Unpacking the Inverter
Inspect the shipping container and equipment for loose or damaged parts. If any damage is found, immediately
notify the freight carrier.
Basic Guidelines
The wiring of your inverter installation should conform to the National Electric Code (NEC) and any other state
or local codes in effect at the time of installation. These codes have been written for your protection and their
requirements should be followed.
Mounting
Locate a secure, dry, flat horizontal surface large enough to mount the inverter. The location should be as
close to the battery as possible without being in the same compartment and should provide adequate
ventilation to maintain room temperature while the inverter is operating. The location must allow unobstructed
cooling airflow at sides, rear, and bottom of the unit, and the location must be free from road spray, dripping
water or other moisture contamination. A recommended minimum clearance of 4 inches (102 mm) should be
maintained on all sides of the unit.
WARNING: Risk of fire or explosion. The inverter must not be mounted in fuel storage areas, battery
compartments, or other hazardous areas where potentially explosive gases may be present.
WARNING: It is important to utilize the included mounting brackets mounting. Mount the inverter in the
under cabinet method or bolted to a shelf.There must be a minimum of 5/8 inches below the unit, which
provides adequate airflow to cool the Inverter/Charger. If the unit is to be set on its base (in a shelf mount
configuration) and not bolted down, make certain that the mounting feet are bolted to the unit to provide the
adequate clearance as shown below.

INCOR POR ATED
®
Installation
ITC-Series Inverter Page 20 10/07/05
I NCO RPO RATED
Inverter
On/Of f Charger On/Of f
Overload
Low
Ba tte ry
Fau lt
Overload
Bulk
Fau lt
F 14 Figure 4.1-1 Shelf Mount Configuration
NOTE
The wiring of your inverter installation should conform to the National Electric Code (NEC) and any other state
or local codes in effect at the time of installation. Article 551 of the NEC requires any DC cable from a battery,
which measures longer than 18 inches along its length, be protected by a fuse. Other codes may require each
ungrounded output conductor from a storage battery, other than to the engine cranking motor, to have a
manually reset trip-free circuit breaker or fuse within 18 inches of the battery as measured along the conductor.
DC Wiring
Preliminary Considerations
1. BE AWARE that, as a large number of capacitors become charged upon completion of the DC circuit,
THERE WILL BE A LARGE SPARK when the last battery connection is made. The spark is normal and will
occur every time the batteries are connected.
2. The DC cables should be as short as possible. It is electrically more efficient to run the lower current AC
wiring longer distances than the DC cables. (See DC Cable Sizing Chart for proper size.)
3. Route the DC positive and negative cables as close together as possible, and use cable ties to keep them
together. This reduces some electromagnetic radiation that could interfere with some sensitive electronics.
3. On vehicle installations do not use the vehicle chassis as the DC negative conductor. Use a cable the same
size as the DC positive to go directly from the inverter to the battery negative.
4. Route the AC and DC power wiring separately, and with as much physical separation as possible, from low
voltage wiring such as audio and video signal wires.
5. DC power input cables that pass through steel or other ferrous metal walls need to pass through the same
hole. If two holes are required, cut a slot connecting the two holes to prevent a transformer effect.
6. Do not allow wire fragments or metal shavings to fall into the DC wiring compartment or to enter the inverter
in any way. Severe inverter damage will result which is not covered by the warranty.
7. Do not connect the inverter to the battery at this time. Final battery connections will be made after all
installation issues have been inspected.
8. WARNING: A poorly made high current connection may result in the risk of fire and personal injury.
9. WARNING: Be sure of the polarity of the DC input wiring. Reverse polarity may severely damage your
inverter and is not covered under warranty. Risk of fire or explosion of batteries may occur due to very high
currents.
10.A DC fuse is required to properly protect the inverter.
11.The table below shows the recommended minimum cable size which should be used. Wire sizing charts
published in the NEC may allow a greater amp capacity than we recommend. We have sized the cable for a
minimum voltage drop on the cable to maintain better performance of your inverter installation. The
inverter‟s DC cable terminal lugs can accommodate cable sizes up to 250 MCM.
T 2 Table 4-1 DC Cable and Fuse Sizing Chart