Thomas & Betts 15, 20D, 20, 15D User Manual
OWNER’S MANUAL
FREEDOM 458 Series COMBI
INVERTER/CHARGER
TM
MODEL 15 Part No. 81-1510-12
MODEL 15D Part No. 81-1520-12
MODEL 20 Part No. 81-2010-12
MODEL 20D Part No. 81-2020-12
INFORMATION IN THIS MANUAL IS SUBJECT TO CHANGE WITHOUT NOTICE
®
A Valley Forge Company
Part No. 90-0123-00
Libertycombi.p65 10/26/98
1
Thank you for purchasing a Heart Interface Freedom 458 Series Combi
Inverter/
TM
Charger. Heart Interface takes pride in manufacturing quality products specifically
designed to meet your power requirements.
Freedom Combi Inverter/Chargers provide silent, efficient and reliable AC power for a
variety of applications. They feature “hands-free” operation, automatic 3-stage battery
charging and automatic AC transfer switching. For your convenience, service is available
world-wide by qualified service centers.
If you have any questions about your Freedom Combi, please contact Heart
Interface toll free: (800) 446-6180.
For technical support and additional information about Heart Interface products, visit
our web site at www.heartinterface.com or send us e-mail:
techhelp@heartinterface.com
SAFETY SUMMARY
Safety information for installation and
operation is contained throughout this
manual where it applies and is not included
in this summary .
Definitions:
Warning statements identify conditions or
practices which could result in personal injury,
loss of life, damage to equipment or other
property .
sales@heartinterface.com
Fuse Replacement For continued protection
against the possibility of fire, replace the fuse
only with a fuse of the specified voltage,
current and type ratings.
Power Source To avoid damage, operate the
equipment only within the specified AC (line)
and DC (battery) voltages.
Servicing To reduce the risk of electric shock
do not open this unit. There are no user
serviceable parts inside. Refer all service to
qualified personnel.
The statements, specifications and instructions in this publication are believed to be correct. No warranty is made,
expressed or implied by the seller or manufacturer with respect to any results or lack thereof from the use of
information in this publication and no liability is assumed for any direct or consequential damages, personal loss or
injury. All statements made herein are strictly to be used or relied on at the user’s risk. © 1998 Heart Interface
Corporation. All rights reserved.
2
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T ABLE OF CONTENTS
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . 4
Things You Should Know . . . . . . . . . . . . . 5
Circuit Breaker Protection
Thermostat Controlled Cooling
Inverter Idle Circuit
Low and High Battery Shutdown
Power Sharing
Temperature Sensitive Charging
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Optional Remote Control Panels . . . . . . . . .10
Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Battery Types
Battery Interconnection
Battery Bank Ratings and Sizing
Battery Charging. . . . . . . . . . . . . . . . . . . . 15
Freedom Battery Chargers
Battery Charger Voltage Table . . . . . . . . .20
Installation Precautions . . . . . . . . . . . . . . 21
Installation . . . . . . . . . . . . . . . . . . . . . . . . . 22
Key Installation Points
Grounding
Neutral Bonding
AC Wiring
AC Input
AC Output
Ground Fault Circuit Interrupters
Remote Control Wiring
TSC Temperature Senstive Charging
DC Wiring
Battery Cable Fusing
Power ON Checks
Troubleshooting . . . . . . . . . . . . . . . . . . . . .31
LED Fault Status
Things to Check
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 35
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
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Not recommended for use in marine environment
3
INTRODUCTION
This owner’s manual describes the
Freedom 458 Series Combi
Inverter/
TM
Chargers from Heart Interface. These units
perform three distinct functions:
1. DC to AC power inverting.
2. Automatic transfer switching between
inverter power and incoming AC power.
3. Automatic 3-Stage Battery charging plus
manual battery equalizing.
• The inverter provides regulated 120 volt AC
power at a crystal controlled frequency from a
deep cycle battery bank and is rated at:
Freedom 15 & 15D 1500 watts
Freedom 20 & 20D 2000 watts
The output is a modified sine wave and is
compatible with most appliances, tools and
other 120 V AC equipment. (Note: Certain laser
printers, breadmakers, digital clocks and
small battery chargers may not operate on
modfied sinewave.) An idle mode reduces
battery power consumption when loads are
removed from the inverter. There is a low
battery cutout protection circuit and
momentary surge power of more than twice
the inverter rating for starting electric motors.
High efficiency insures the longest possible
battery life between charges.
• The internal transfer switch allows the
Freedom Inverter/Charger to be connected to
an external AC source and transfer the source
power through directly to the loads. When the
external AC power source is disconnected, the
transfer switch allows automatic switching
back to the inverter.
The Freedom Inverter/Charger operates
as a self-contained backup power system, just
add batteries.
• Freedom battery chargers are electronically
controlled and rated at a maximum output
current:
Freedom 15 & 15D 75 Amps DC
Freedom 20 & 20D 100 Amps DC
They are designed to rapidly and optimally
charge wet, gel, or Absorbed Glass Mat
(AGM)** cell deep-cycle batteries. Battery
charging is automatically accomplished in 3
stages: Bulk Charge, Acceptance Charge and
Float Charge.
Using a Remote Control Panel or Link
Instrumentation, a manually engaged
Equalizing Charge cycle is possible. Simple,
automatic operation is made possible by the
microprocessor in the Freedom Inverter/
Charger. In most cases, no attention or
maintenance is required.
Electronic Protection
Fast-acting electronic circuits protect
the inverter from overloads and short circuits.
Other protection includes a low and high
battery voltage cutoff and automatic shutdown
if an over temperature condition occurs. When
the fault condition is corrected, the unit will
automatically reset. Example: remove
overload, charge batteries or allow to cool.
**Battery type selection is set on the front of the unit
or with an optional remote (Remote Control Panel or
Freedom 20D
Link Instrument).
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THINGS YOU SHOULD KNOW
Circuit Breaker Protection
The Freedom Inverter/Charger is
supplemental breaker protected. The
INVERT/CHARGE breaker on the front of the
unit protects against sustained inverter/charger
over current conditions.
The 30 Ampere AC INPUT circuit breaker
protects the incoming AC circuit. The incoming
AC circuit provides power to the battery
charger and its power is transfered to the
loads connected to the inverter AC output.
These breakers are reset by pushing the
button back in.
The output circuit breakers protect the
output AC circuits. Models are available with
one or two outputs. Note: The integral circuit
breakers provided for AC outputs 1 and 2 are
not suitable for branch circuit protection. To
comply with NEC, additional branch circuit
rated breakers should be used to power the
loads.
Thermostat Controlled Cooling
Freedom Inverter/Chargers are equipped
with a thermostatically-controlled fan that cools
the unit so it can operate continually at its rated
output.
Inverter Idle Circuit
This automatic energy saving feature
reduces battery power consumption when no
AC load is present. Response from idle is
instantaneous. In most cases, the operation of
the idle circuit is not noticeable. Use of the
Remote Control Panel or Link Instrumentation
allows the idle threshold to be adjusted. The
unit does not put out 120 volts when in idle. To
bring the unit out of the idle condition, apply a
load.
Low and High Battery Shutdown
When in inverter mode, if the battery
voltage drops to 10.0 volts, the inverter will
automatically shut off. Charge the batteries to
13.5 volts to automatically resume operation.
Circuit Breaker Protection
INPUT
15
15D
20
20D
Freedom 20D
INPUT
30
30
30
30
INV/CHG
20
20
25
25
OUT 1
OUT 2
OUT 1
20
OUT 2
N/A
15
25
N/A
15
INVERT/CHARGE
20
20
Voltage shut down also occurs for a high
battery condition at 15.5 volts. Operation will
resume automatically when the battery voltage
drops below 15.5 volts. Check all DC sources
on the system for the reason for the excessive
voltage.
Power Sharing
When connected to an external AC
source the battery charger and transfer
functions are engaged. A unique Power
Sharing feature automatically reduces the AC
power consumption of the battery charger
allowing necessary AC power to go to the load.
This prevents the source AC INPUT circuit
breaker from tripping within the specified rating
of the AC circuit breaker.
The Power Sharing set point of each unit
has a factory default setting. This can be
changed using the Remote Control Panel or
Link Instrumentation.
5
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THINGS YOU SHOULD KNOW
Temperature Sensitive Charging
When the supplied battery temperature
sensor is connected to the unit and the
batteries, the charge voltage is controlled
based on battery temperature. The charger
adjusts the charge voltage to the best level,
minimizing water loss in wet cell batteries.
Charge voltage regulation optimizes the battery
life cycle.
TSC Sensor
Battery
Freedom 20D
6
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OPERATION
The Freedom Inverter/Charger provides
120 volt AC power from auxiliary DC batteries,
automatic battery charging and automatic AC
transfer switching between an external AC
source and inverter mode.
External AC Power
When external AC power is available, the
3-stage battery charger, transfer switching,
and Power Sharing automatically function.
When external AC power is not available
and the INVERT switch is ON (either through
the auxiliary switch or the INVERT button on
the remote), the inverter will automatically turn
ON. If the INVERT switch is OFF (the INVERT
LED will not be illuminated), the inverter will be
OFF.
If installed with the Remote Control Panel
or Link Instrumentation, the unit will be set up
and controlled from the remote. Refer to the
remote manual for more information.
Front Panel Controls and Indicators
INVERT MODE
The INVERT push-button switch is
located on the front of the unit and has two
functions:
• Turn the inverter ON/OFF and reset after
a fault condition. Pressing the INVERT switch
turns the inverter ON. The green INVERT LED
will be ON when the inverter is inverting.
When the inverter is ON, pressing the INVERT
switch turns the inverter OFF.
INVERT
CHARGE
• Battery type setup. To enter the battery
type select mode, press and hold the INVERT
switch for five seconds. The status LEDs will
change from indicating status information to
indicating battery type. The selection of the
battery type is made with the Charge switch.
Turning the INVERT OFF will reduce
battery power consumption to a very low level.
This is recommended if the unit will not be
used for an extended period of time.
CHARGE MODE
The CHARGE push-button switch has
two functions:
• Turn the charger ON and OFF
If external AC is present, pressing the
CHARGE switch will turn the charger ON.
The green CHARGE LED will be ON when the
charger is charging. When the charger is ON,
pressing this switch will turn the charger OFF.
• Select the battery type After holding
the INVERT switch for 5 seconds, press the
CHARGE switch to select the battery type.
One of the four LEDs will rapidly blink
indicating the present battery type setting.
Press the CHARGE switch again to change
the battery type. Continue to press until the
desired battery type is selected. If the
CHARGE switch is not pressed for 5 seconds,
the unit will return to normal operation and the
battery type selection will have been made.
When the 12 volt input to the unit is
disconnected, the battery type setting is stored
in non-volatile memory . When the unit is
reconnected, the battery type selection
conveniently returns to the setting.
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Freedom 20D (Dual Output)
7
OPERA TION
STATUS LEDs
Each Status LED performs two functions,
providing battery type selection and operation
status.
Status LEDs
CHARGE
INVERT
OVERTEMP
OVERLOAD / AGM
LOW BATTERY / GEL 2
CHARGE / GEL1
INVERT / WET
REMOTE
TSC
Battery Type Selection
After holding the INVERT button down for
5 seconds, use the CHARGE button to select
battery type :
WET GEL 1 GEL 2 AGM
Operation Status
INVERT - Green LED
• When the LED is solid green, the unit is
in invert mode. This occurs by pressing the
INVERT switch.
• When the LED is blinking slowly (1 time
per second), the inverter is in standby with AC
power applied and the transfer switch engaged
• When the LED is OFF, the inverter is
OFF.
CHARGE - Green LED
• When the LED is solid green, the unit is
in the charge mode and external AC power is
being supplied.
• When the LED is blinking slowly, (1 time
per second) the charger is ready , but external
AC power is not available.
• When the LED is OFF, the charger has
been manually turned OFF. This can only be
accomplished while AC power is being
supplied.
NOTE: When AC power is available, the
default setting for the charger is ON. If the unit
was manually turned OFF and AC power is interrupted and becomes available again, the
charger will return to ON.
LOW BATTERY - Red LED
• When the LED is OFF the battery
voltage is normal, between 10.5 and 15.0
volts DC.
• When the LED is solid red, it indicates a
battery warning condition, the battery voltage is
below 10.5 volts DC or above 15.0 volts DC.
• When the LED is blinking slowly, (1 time
per second), a battery shutdown has occurred.
The voltage is either below 10.0 volts DC or
above 15.5 volts DC.
• When the LED is blinking rapidly (5
times per second), a potential problem in the
DC system has been detected. Check your
batteries, battery cables and DC loads.
OVERTEMP/OVERLOAD - Red LED
• When the LED is Off operation is
normal.
• When the LED is red, there is an over
temp or overload condition. Check for
excessive loads or short circuit on the output
of the inverter. Correct the condition and restart
by pushing the INVERT switch.
• When the LED is blinking slowly (1 time
per second), an over current condition or a
short circuit has occured. The system has
shut OFF and will not automatically restart.
Correct the fault condition and manually restart
the system.
8
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LOW BATTERY & OVERTEMP/OVERLOAD
- Red LEDs
OPERATION
• When both LEDs are blinking, an AC
backfeed has been detected. A backfeed
occurs when AC power from an external
source is connected to the output of the
inverter. Inspect wiring for possible input/output
wiring error. This condition will damage the unit
and must be corrected before further
operation.
TSC (Temperature Sensitive Charging)
This provides for the connection of a
sensor to measure battery temperature for
compensated charging. If no sensor is
connected the charge voltage levels are set to
defaults based on battery type.
OPTIONAL REMOTES
If using one of the remotes, refer to the
installation instructions included with the
remote.
Note: When a Remote Control Panel or
Link is installed, the jumper included in the
parts plastic bag is
not used in the Auxiliary
Switch Port (AUX SWITCH) on the front panel
of the inverter/charger. See page 23 for more
details.
Low
Battery
Overtemp
Remote
TSC
Freedom 20D
Auxiliary Port
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9
OPTIONAL REMOTE CONTROL P ANELS
Remote Control Panel
An optional remote control panel is
available. The LED bargraphs on the remote
control panel shows battery voltage and DC
current in both inverter and charger modes.
Easy to see red, yellow and green LEDs
show the battery state-of-charge. Power
Sharing, charger ON/OFF, inverter ON/OFF
controls are provided. Set up features include
selection of Idle Threshold, Battery Type and
Battery Capacity .
Remote Control Panel
LINK 2000
The Link 2000 has the same features as
the Link 1000, providing inverter/charger
control and complete battery state-of-charge
information. It monitors two battery banks.
LINK 2000
LINK 2000R
The Link 2000R adds the ability to
regulate an engine-driven alternator. The
precision regulator in the LINK 2000R allows
the alternator to be controlled as a 3-stage
battery charging system.
Advanced Remote Control Panels
Link Instrument
Advanced remote control panels are also
available: the Link 1000, 2000 and 2000R.
LINK 1000
Link 1000 controls the Freedom Inverter/
Charger and provides complete battery
state-of-charge information including DC
voltage, current, Amp-hours consumed, Time
Remaining and historical data for a single
battery bank.
LINK 1000
10
If Link Instrument is used to control the
inverter/charger, refer to the Link Owner’s
Manual for setup and control information.
Refer to the Remote Control Panel
or LINK Owner’s Manual for
installation and operation instructions
The jumper is not installed in the AUX
Switch Port on the front panel of the
inverter when the Remote Control Panel
or Link Instrument is used. See page 23
for more details.
Part No. 90-0123-00
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BA TTERIES
Wet cell batteries will give off gas as a
natural result of charging and will experience
some water loss. It is very important that the
electrolyte level be checked frequently and
topped off with distilled water when necessary.
Follow the battery manufacturer’s
recommendations for maintenance.
Never allow the top of the battery plates to
be exposed to air, as contamination of the cell
will result. Keep the top of batteries clean.
Always provide adequate ventilation for the
battery storage compartment.
BATTERY TYPES
Use only deep-cycle batteries with your
Freedom Inverter/Charger. These fall into three
broad categories: wet cell, gel cell and
Advanced AGM (Absorbed Glass Mat)
batteries.
Wet Cell Batteries
True deep-cycle wet cell batteries are
characterized by relatively thick internal plates
that are alloyed with antimony .
Common 12 volt marine/RV deep-cycle
batteries are acceptable. Golf cart
batteries perform well and may have a
longer life. These 6 volt batteries must be
used in series connected in pairs. High
quality deep-cycle batteries offer good
performance and are available in a wide
variety of sizes.
Do not use ordinary car batteries or
engine starting batteries with your inverter/
charger. Beware of any battery that is rated in
Cold Cranking Amps (CCA). This is a rating
which applies only to engine starting batteries.
In general, most wet cell batteries that are
described as hybrid type batteries, suitable for
either engine starting or deep-cycle
applications, are a compromise and will have
limited life if deeply discharged.
Part No. 90-0123-00
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