OWNER’S MANUAL - serenitysys.com 458 Series_COMBI... · Inverter/ Charger. Heart Interface takes pride in manufacturing quality ... This owner’s manual describes the Freedom 458

Part No. 90-0123-00Libertycombi.p65 10/26/98

1

OWNER’S MANUAL

FREEDOM 458 Series COMBI TM

INVERTER/CHARGER

®

A Valley Forge Company

INFORMATION IN THIS MANUAL IS SUBJECT TO CHANGE WITHOUT NOTICE

MODEL 15 Part No. 81-1510-12MODEL 15D Part No. 81-1520-12MODEL 20 Part No. 81-2010-12MODEL 20D Part No. 81-2020-12


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SAFETY SUMMARY

Safety information for installation andoperation is contained throughout thismanual where it applies and is not includedin this summary.

Definitions:

Warning statements identify conditions orpractices which could result in personal injury,loss of life, damage to equipment or otherproperty.

Fuse Replacement For continued protectionagainst the possibility of fire, replace the fuseonly with a fuse of the specified voltage,current and type ratings.

Power Source To avoid damage, operate theequipment only within the specified AC (line)and DC (battery) voltages.

Servicing To reduce the risk of electric shockdo not open this unit. There are no userserviceable parts inside. Refer all service toqualified 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 ofinformation in this publication and no liability is assumed for any direct or consequential damages, personal loss orinjury. All statements made herein are strictly to be used or relied on at the user’s risk. © 1998 Heart InterfaceCorporation. All rights reserved.

Thank you for purchasing a Heart Interface Freedom 458 Series CombiTM

Inverter/Charger. Heart Interface takes pride in manufacturing quality products specificallydesigned to meet your power requirements.

Freedom Combi Inverter/Chargers provide silent, efficient and reliable AC power for avariety of applications. They feature “hands-free” operation, automatic 3-stage batterycharging and automatic AC transfer switching. For your convenience, service is availableworld-wide by qualified service centers.

If you have any questions about your Freedom Combi, please contact HeartInterface toll free: (800) 446-6180.

For technical support and additional information about Heart Interface products, visitour web site at www.heartinterface.com or send us e-mail:

[email protected] [email protected]


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Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4

Things You Should Know . . . . . . . . . . . . . 5Circuit Breaker ProtectionThermostat Controlled CoolingInverter Idle CircuitLow and High Battery ShutdownPower SharingTemperature Sensitive Charging

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Optional Remote Control Panels . . . . . . . . .10

Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . 11Battery TypesBattery InterconnectionBattery Bank Ratings and Sizing

Battery Charging . . . . . . . . . . . . . . . . . . . . 15Freedom Battery Chargers

Battery Charger Voltage Table . . . . . . . . .20

Installation Precautions . . . . . . . . . . . . . . 21

Installation . . . . . . . . . . . . . . . . . . . . . . . . . 22Key Installation PointsGroundingNeutral BondingAC WiringAC InputAC OutputGround Fault Circuit InterruptersRemote Control WiringTSC Temperature Senstive ChargingDC WiringBattery Cable FusingPower ON Checks

TABLE OF CONTENTSTroubleshooting . . . . . . . . . . . . . . . . . . . . .31 LED Fault Status Things to Check

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 35

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Not recommended for use in marine environment


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This owner’s manual describes theFreedom 458 Series Combi

TM Inverter/

Chargers from Heart Interface. These unitsperform three distinct functions:

1. DC to AC power inverting.2. Automatic transfer switching betweeninverter power and incoming AC power.3. Automatic 3-Stage Battery charging plusmanual battery equalizing.

• The inverter provides regulated 120 volt ACpower at a crystal controlled frequency from adeep 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 iscompatible with most appliances, tools andother 120 VAC equipment. (Note: Certain laserprinters, breadmakers, digital clocks andsmall battery chargers may not operate onmodfied sinewave.) An idle mode reducesbattery power consumption when loads areremoved from the inverter. There is a lowbattery cutout protection circuit andmomentary surge power of more than twicethe inverter rating for starting electric motors.High efficiency insures the longest possiblebattery life between charges.• The internal transfer switch allows theFreedom Inverter/Charger to be connected toan external AC source and transfer the source

INTRODUCTIONpower through directly to the loads. When theexternal AC power source is disconnected, thetransfer switch allows automatic switchingback to the inverter.

The Freedom Inverter/Charger operatesas a self-contained backup power system, justadd batteries.

• Freedom battery chargers are electronicallycontrolled and rated at a maximum outputcurrent:

Freedom 15 & 15D 75 Amps DC Freedom 20 & 20D 100 Amps DC

They are designed to rapidly and optimallycharge wet, gel, or Absorbed Glass Mat(AGM)** cell deep-cycle batteries. Batterycharging is automatically accomplished in 3stages: Bulk Charge, Acceptance Charge andFloat Charge.

Using a Remote Control Panel or LinkInstrumentation, a manually engagedEqualizing Charge cycle is possible. Simple,automatic operation is made possible by themicroprocessor in the Freedom Inverter/Charger. In most cases, no attention ormaintenance is required.

Electronic ProtectionFast-acting electronic circuits protect

the inverter from overloads and short circuits.Other protection includes a low and highbattery voltage cutoff and automatic shutdownif an over temperature condition occurs. Whenthe fault condition is corrected, the unit willautomatically reset. Example: removeoverload, charge batteries or allow to cool.

**Battery type selection is set on the front of the unitor with an optional remote (Remote Control Panel orLink Instrument).Freedom 20D


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Circuit Breaker ProtectionThe Freedom Inverter/Charger is

supplemental breaker protected. TheINVERT/CHARGE breaker on the front of theunit protects against sustained inverter/chargerover current conditions.

The 30 Ampere AC INPUT circuit breakerprotects the incoming AC circuit. The incomingAC circuit provides power to the batterycharger and its power is transfered to theloads connected to the inverter AC output.These breakers are reset by pushing thebutton back in.

The output circuit breakers protect theoutput AC circuits. Models are available withone or two outputs. Note: The integral circuitbreakers provided for AC outputs 1 and 2 arenot suitable for branch circuit protection. Tocomply with NEC, additional branch circuitrated breakers should be used to power theloads.

THINGS YOU SHOULD KNOWThermostat Controlled Cooling

Freedom Inverter/Chargers are equippedwith a thermostatically-controlled fan that coolsthe unit so it can operate continually at its ratedoutput.

Inverter Idle CircuitThis automatic energy saving feature

reduces battery power consumption when noAC load is present. Response from idle isinstantaneous. In most cases, the operation ofthe idle circuit is not noticeable. Use of theRemote Control Panel or Link Instrumentationallows the idle threshold to be adjusted. Theunit does not put out 120 volts when in idle. Tobring the unit out of the idle condition, apply aload.

Low and High Battery ShutdownWhen in inverter mode, if the battery

voltage drops to 10.0 volts, the inverter willautomatically shut off. Charge the batteries to13.5 volts to automatically resume operation.

Voltage shut down also occurs for a highbattery condition at 15.5 volts. Operation willresume automatically when the battery voltagedrops below 15.5 volts. Check all DC sourceson the system for the reason for the excessivevoltage.

Power SharingWhen connected to an external AC

source the battery charger and transferfunctions are engaged. A unique PowerSharing feature automatically reduces the ACpower consumption of the battery chargerallowing necessary AC power to go to the load.This prevents the source AC INPUT circuitbreaker from tripping within the specified ratingof the AC circuit breaker.

The Power Sharing set point of each unithas a factory default setting. This can bechanged using the Remote Control Panel orLink Instrumentation.

15

15D

20

20D

INPUT

30

30

30

30

INV/CHG

20

20

25

25

OUT 1

20

15

25

15

OUT 2

N/A

20

N/A

20

Circuit Breaker Protection

INPUT

INVERT/CHARGEOUT 1

OUT 2

Freedom 20D


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Temperature Sensitive Charging When the supplied battery temperaturesensor is connected to the unit and thebatteries, the charge voltage is controlledbased on battery temperature. The chargeradjusts the charge voltage to the best level,minimizing water loss in wet cell batteries.Charge voltage regulation optimizes the batterylife cycle.

Freedom 20D

Battery

TSC Sensor

THINGS YOU SHOULD KNOW


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OPERATIONThe Freedom Inverter/Charger provides

120 volt AC power from auxiliary DC batteries,automatic battery charging and automatic ACtransfer switching between an external ACsource and inverter mode.

External AC PowerWhen external AC power is available, the

3-stage battery charger, transfer switching,and Power Sharing automatically function.

When external AC power is not availableand the INVERT switch is ON (either throughthe auxiliary switch or the INVERT button onthe remote), the inverter will automatically turnON. If the INVERT switch is OFF (the INVERTLED will not be illuminated), the inverter will beOFF.

If installed with the Remote Control Panelor Link Instrumentation, the unit will be set upand controlled from the remote. Refer to theremote manual for more information.

Front Panel Controls and Indicators

INVERT MODEThe INVERT push-button switch is

located on the front of the unit and has twofunctions:

• Turn the inverter ON/OFF and reset aftera fault condition. Pressing the INVERT switchturns the inverter ON. The green INVERT LEDwill be ON when the inverter is inverting.When the inverter is ON, pressing the INVERTswitch turns the inverter OFF.

INVERT

CHARGE

• Battery type setup. To enter the batterytype select mode, press and hold the INVERTswitch for five seconds. The status LEDs willchange from indicating status information toindicating battery type. The selection of thebattery type is made with the Charge switch.

Turning the INVERT OFF will reducebattery power consumption to a very low level.This is recommended if the unit will not beused for an extended period of time.

CHARGE MODEThe CHARGE push-button switch has

two functions:

• Turn the charger ON and OFFIf external AC is present, pressing theCHARGE switch will turn the charger ON.The green CHARGE LED will be ON when thecharger is charging. When the charger is ON,pressing this switch will turn the charger OFF.

• Select the battery type After holdingthe INVERT switch for 5 seconds, press theCHARGE switch to select the battery type.One of the four LEDs will rapidly blinkindicating the present battery type setting.Press the CHARGE switch again to changethe battery type. Continue to press until thedesired battery type is selected. If theCHARGE switch is not pressed for 5 seconds,the unit will return to normal operation and thebattery type selection will have been made.

When the 12 volt input to the unit isdisconnected, the battery type setting is storedin non-volatile memory. When the unit isreconnected, the battery type selectionconveniently returns to the setting.

Freedom 20D (Dual Output)


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STATUS LEDsEach Status LED performs two functions,

providing battery type selection and operationstatus.

OPERATION

Operation Status

INVERT - Green LED

• When the LED is solid green, the unit isin invert mode. This occurs by pressing theINVERT switch.

• When the LED is blinking slowly (1 timeper second), the inverter is in standby with ACpower applied and the transfer switch engaged

• When the LED is OFF, the inverter isOFF.

CHARGE - Green LED

• When the LED is solid green, the unit isin the charge mode and external AC power isbeing supplied.

• When the LED is blinking slowly, (1 timeper second) the charger is ready, but externalAC power is not available.

• When the LED is OFF, the charger hasbeen manually turned OFF. This can only beaccomplished while AC power is beingsupplied.

NOTE: When AC power is available, thedefault setting for the charger is ON. If the unitwas manually turned OFF and AC power is in-terrupted and becomes available again, thecharger will return to ON.

LOW BATTERY - Red LED

• When the LED is OFF the batteryvoltage is normal, between 10.5 and 15.0volts DC.

• When the LED is solid red, it indicates abattery warning condition, the battery voltage isbelow 10.5 volts DC or above 15.0 volts DC.

• When the LED is blinking slowly, (1 timeper second), a battery shutdown has occurred.The voltage is either below 10.0 volts DC orabove 15.5 volts DC.

• When the LED is blinking rapidly (5times per second), a potential problem in theDC system has been detected. Check yourbatteries, battery cables and DC loads.

OVERTEMP/OVERLOAD - Red LED

• When the LED is Off operation isnormal.

• When the LED is red, there is an overtemp or overload condition. Check forexcessive loads or short circuit on the outputof the inverter. Correct the condition and restartby pushing the INVERT switch.

• When the LED is blinking slowly (1 timeper second), an over current condition or ashort circuit has occured. The system hasshut OFF and will not automatically restart.Correct the fault condition and manually restartthe system.

INVERT CHARGE REMOTE TSC

INVERT / WET

Battery Type Selection

After holding the INVERT button down for5 seconds, use the CHARGE button to selectbattery type :

WET GEL 1 GEL 2 AGM

CHARGE / GEL1

LOW BATTERY / GEL 2

OVERTEMPOVERLOAD / AGM

Status LEDs


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OPERATIONLOW BATTERY & OVERTEMP/OVERLOAD- Red LEDs

• When both LEDs are blinking, an ACbackfeed has been detected. A backfeedoccurs when AC power from an externalsource is connected to the output of theinverter. Inspect wiring for possible input/outputwiring error. This condition will damage the unitand must be corrected before furtheroperation.

TSC (Temperature Sensitive Charging)

This provides for the connection of asensor to measure battery temperature forcompensated charging. If no sensor isconnected the charge voltage levels are set todefaults based on battery type.

OPTIONAL REMOTES

If using one of the remotes, refer to theinstallation instructions included with theremote.

Note: When a Remote Control Panel orLink is installed, the jumper included in theparts plastic bag is not used in the AuxiliarySwitch Port (AUX SWITCH) on the front panelof the inverter/charger. See page 23 for moredetails.

Remote TSC

Overtemp

LowBattery

Freedom 20D

Auxiliary Port


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LINK 2000The Link 2000 has the same features as

the Link 1000, providing inverter/chargercontrol and complete battery state-of-chargeinformation. It monitors two battery banks.

OPTIONAL REMOTE CONTROL PANELS

Remote Control PanelAn optional remote control panel is

available. The LED bargraphs on the remotecontrol panel shows battery voltage and DCcurrent in both inverter and charger modes.

Easy to see red, yellow and green LEDsshow the battery state-of-charge. PowerSharing, charger ON/OFF, inverter ON/OFFcontrols are provided. Set up features includeselection of Idle Threshold, Battery Type andBattery Capacity.

Advanced Remote Control PanelsLink Instrument

Advanced remote control panels are alsoavailable: the Link 1000, 2000 and 2000R.

LINK 1000Link 1000 controls the Freedom Inverter/

Charger and provides complete batterystate-of-charge information including DCvoltage, current, Amp-hours consumed, TimeRemaining and historical data for a singlebattery bank.

LINK 1000

LINK 2000

LINK 2000RThe Link 2000R adds the ability to

regulate an engine-driven alternator. Theprecision regulator in the LINK 2000R allowsthe alternator to be controlled as a 3-stagebattery charging system.

If Link Instrument is used to control theinverter/charger, refer to the Link Owner’sManual for setup and control information.

The jumper is not installed in the AUXSwitch Port on the front panel of theinverter when the Remote Control Panelor Link Instrument is used. See page 23for more details.

Refer to the Remote Control Panelor LINK Owner’s Manual for

installation and operation instructions

Remote Control Panel


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BATTERIES

BATTERY TYPESUse only deep-cycle batteries with your

Freedom Inverter/Charger. These fall into threebroad categories: wet cell, gel cell andAdvanced AGM (Absorbed Glass Mat)batteries.

Wet Cell BatteriesTrue deep-cycle wet cell batteries are

characterized by relatively thick internal platesthat are alloyed with antimony.

Common 12 volt marine/RV deep-cyclebatteries are acceptable. Golf cartbatteries perform well and may have alonger life. These 6 volt batteries must beused in series connected in pairs. Highquality deep-cycle batteries offer goodperformance and are available in a widevariety of sizes.

Wet cell batteries will give off gas as anatural result of charging and will experiencesome water loss. It is very important that theelectrolyte level be checked frequently andtopped off with distilled water when necessary.Follow the battery manufacturer’srecommendations for maintenance.

Never allow the top of the battery plates tobe exposed to air, as contamination of the cellwill result. Keep the top of batteries clean.Always provide adequate ventilation for thebattery storage compartment.

Do not use ordinary car batteries orengine starting batteries with your inverter/charger. Beware of any battery that is rated inCold Cranking Amps (CCA). This is a ratingwhich applies only to engine starting batteries.In general, most wet cell batteries that aredescribed as hybrid type batteries, suitable foreither engine starting or deep-cycleapplications, are a compromise and will havelimited life if deeply discharged.


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Beware of so-called maintenance-freebatteries. These batteries have calciumalloyed with the lead and hold the liquidelectrolyte in a sponge-like material. They aresealed and water can not be added. Do notconfuse them with true gel cell or AGMbatteries, they will not hold up well to deepdischarging and repeated cycling.

Gel Cell BatteriesGel cell batteries are lead-acid batteries

similar in many ways to the common wet cellbattery, but differences in the chemistry andconstruction provide some unique features.

• No Maintenance

• Low Self-Discharge Rate

• Low Internal Resistance

Even though gel cells are sealedbatteries, the battery compartment should stillbe ventilated.

Advanced AGM (Absorbed Glass Mat)Batteries

This battery is lead acid but maintenance-free. The performance is similar to gel cellbatteries. The charge parameters are similarto wet cell batteries.

Battery SelectionThe most important feature to consider inmaking your battery selection is to select truedeep cycle batteries rated in Amp-hours (AH)and sized to match your power requirements.

BATTERY INTERCONNECTIONIn most cases, you will be using a bank of

two or more batteries with your inverter/charger. You may connect batteries together intwo configurations, series and paralleldepending on their voltage.

BATTERIESSeries

Connecting two batteries in series willdouble the voltage of the battery bank. Forinstance, two 6 volt batteries connected inseries will produce 12 volts. The Amp-hourcapacity of the battery bank will be the sameas each individual battery. Example, two 6 volt220 Amp-hour batteries in series will produceone 12 volt 220 Amp-hour battery bank.

Series

+

+

+

Series Increase Voltage

EACH BATTERYCAPACITY:

220AMP-HOURS

@ 6 VDC

TOTAL BATTERYBANK CAPACITY:

220AMP-HOURS@ 12 VDC

6V 6V

+ +

_ _

+

_12V INVERTER


13

ParallelConnecting two batteries in parallel will

double the Amp-hour rating of the battery bank,while the voltage will be the same as eachindividual battery. Example, two 12 volt 105Amp-hour batteries in parallel will produce one12 volt 210 Amp-hour battery bank.

BATTERIES

Parallel

Parallel Increase Amp-hour Capacity

EACH BATTERYCAPACITY:


TOTAL BATTERYBANK CAPACITY:


Only similar batteries should beconnected together in one bank. Do notconnect old and new batteries together or wetand gel cell batteries together. In the abovedrawing, the load is connected to the positiveterminal of the first battery and the negativeterminal of the last battery. This practice helpsto balance the battery bank and is calledcross-connecting the battery bank.

Note: It is not advisable to connectbatteries of different case sizes or Amp-hourratings in the same battery bank.

Always use properly sized wire andterminals for your interconnecting batterycables. For size information refer to NECrequirements or contact your localelectrician.

BATTERY BANK RATINGS AND SIZINGDeep-cycle batteries are usually rated in

Amp-hours. The Amp-hour rating is based ona 20-hour discharge rate, therefore, a 100Amp-hour battery can deliver 5 Amps for 20hours. If the discharge rate is greater than 5Amps, the available Amp-hours are de-creased. For example, if the load is increasedto 100 Amps, only about 45 Amp-hours will beavailable at this rate of discharge.

Deep-cycle batteries can be dischargedabout 80% of capacity before damage occurs.Shallow cycling will result in much longerbattery life. Calculating a battery bank sizebased on 50% discharge cycling is generallyconsidered to be a good compromise betweenlong battery life and size.

++

12V 12V+ +

_ _

+12V INVERTER

_


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To achieve 50% cycling you shouldcalculate your Amp-hour consumptionbetween charging cycles and use a batterybank with twice that capacity**. Each ACappliance or tool has a rating plate on it and willbe rated in either AC Amps or Watts or AC VA(Volt-Amps) apparent power. To calculate Amp-hour consumption, use one of the formulas tothe right to calculate the DC Amp-hour drawfor a 12 volt system.

Calculate the Amp-hours for every ACappliance or tool that will be operated on theinverter. This will provide the total number ofAmp-hours used between recharges. Size thebattery bank using this number as a guideline.A good rule to follow is to size the battery banka minimum of 2 times larger than thetotal Amp-hour load requirement. Plan onrecharging when 50% discharged.

BATTERIES

(AC Amps x 10) x 1.1 x hours ofoperation = DC Amp-hours

(Watts/ DC Voltage) x 1.1 x hours ofoperation = DC Amp-hours

(AC VA/ DC Voltage) x 1.1 x hours ofoperation = DC Amp-hours

DC Voltage is 12, 24 or 32 depending onyour system.

**Batteries are typically charged to 85% of fullcharge when charging with alternators without 3-stageregulators.

Typical Power ConsumptlonThe chart identifies typical power

consumption for common AC loads. Use it asa guide when identifying your powerrequirements.

Many electric motors havemomentary starting require-ments well above their opera-tional rating. Start up watts arelisted where appropriate.Individual styles and brands ofappliances may vary.

If using the same batterybank for the inverter and otherDC loads, be sure to considerthe power consumption of theDC loads when sizing thebattery bank.

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VTroloC"31 05 33. 1 2 4 8 21 23 69

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*rotaregirfeR'uc02 057 12 24 48 621 633 276

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In all formulas, 1.1 is the correction factor forinverter efficiency.

AMP-HOUR CONSUMPTION FORMULAS

NOTE Certain laser printers, breadmakers,digital clocks and appliance/tool chargersmay not operate on modified sine wave.


15

Battery ChargingCompletely charging wet cell deep-cycle

batteries requires the battery voltage to beraised beyond what is known as the gassingpoint. This is the voltage at which the batterybegins to bubble and gas is given off. Ifcharging stops short of this point, sulfate is lefton the plates and deterioration of the batterybegins. The gassing point will vary with batterytemperature.

At 77 degrees F, the gassing point of a 12volt battery is about 14.0 volts.

AGM and Gel cell batteries must not becharged to their gassing point. In fact, highvoltage charging which gasses these batteriesis harmful to them. They typically require alower bulk charge voltage and a higher floatvoltage than wet cell batteries. Consult thebattery manufacturer for specifications.

BATTERY CHARGINGFreedom Battery Chargers

Freedom battery chargers are designedto overcome the limitations of conventionalchargers by utilizing 3 distinct charge stages,each designed for optimal charging of wet, gelcell and AGM deep-cycle batteries. Batterytype selection is made on the front panel of theinverter/charger or through the Remote ControlPanel or a Link Instrumentation. For moreinformation on battery type selection, see page7 or refer to the Remote Control Panel manual.


16

BATTERY CHARGING

NOTE: Freedom battery chargers are ONwhenever AC power is connected to thecharger input. The charger can be turned OFFusing the CHARGE switch on the front of theunit. This sequence will occur each timeexternal AC power is available. The chargercan be turned ON/OFF using the RemoteControl Panel or Link Instrumentation.

Each time the battery charger is engaged,the 3-stage charger proceeds automatically,resulting in an efficient complete charge andsafe battery maintenance. Use of the RemoteControl Panel or Link Instrument provides theability to periodically apply an equalizingcharge.

Refer to Remote Control Panel or theLink Instrument Owner’s Manual for moreinformation.

The battery charger stages are:Stage 1 - Bulk Charge During the bulk

charge stage most of the energy that has beenconsumed during discharge is returned to thebattery bank. This phase is engaged as soonas the battery charger is activated. Full ratedcharger current is delivered to the battery bankuntil the bulk charge voltage limit is reached.This results in a relatively rapid recharge.

Generally, a wet cell battery bank shouldnot be charged at a rate which exceeds 25% ofits capacity.


17

Gel cell and Advanced AGM batteries canaccept a higher rate of charge. Consult themanufacturer for specifications.

Stage 2 - Acceptance Charge Theacceptance stage immediately follows the bulkcharge stage. During this stage thebattery voltage is held constant at the bulkcharge voltage limit and the current graduallyramps down. During this stage the battery isaccepting its final amount of charge currentand the last of the sulfate on the plates isremoved.

The acceptance stage lasts until thecharge current reaches the transition point. Atimer will terminate the acceptance stage if thiscurrent level is not reached.

BATTERY CHARGING

Freedom 15 & 15DFreedom 20 & 20D

10 Ampere DC15 Ampere DC

ACCEPTANCE TO FLOAT TRANSITION POINTS

Maximum acceptance time is 1 hour forwet and AGM cells and 3 hours for gel cells.Gel cell acceptance time can be longerbecause they are less likely to gas. Expect wetcell batteries to gas somewhat duringacceptance, this is a necessary part of thecharging process.

NOTE: The acceptance stage timer is notused when Link Instruments control thecharger. Refer to the Link Owner’s Manual.

Stage 3 - Float Charge When theacceptance stage is terminated, eitherbecause the charge current ramped down tothe transition point or the timer engaged, thecharge current will shut off. The unit monitorsthe battery voltage while it drifts down from theacceptance charge voltage limit. When itreaches the float voltage set point, the floatcharge stage is engaged.

The float charge stage holds the batteryvoltage constant at a preset lower level, whereit is safe for long term battery maintenance.During the float charge stage, the full outputcurrent of the battery charger is available tooperate any DC appliances that may be on thesystem, while constantly maintaining the floatcharge voltage.

The battery charger remains in the floatcharge stage indefinitely until the charger isdisconnected from incoming AC power orturned OFF on the unit or with the RemoteControl Panel or Link Instrumentation.

Stage 4 - Equalizing Charge This is theonly battery charger stage which is notengaged automatically. It must be manuallyinitiated each time. Applying an equalizingcharge is possible only with a Remote ControlPanel or Link Instrument.

Periodic equalizing is recommended bymost wet cell deep-cycle battery manu-facturers. There are no firm rules for howoften an equalizing charge should be applied.Follow the battery manufacturer’s recommen-dations for equalizing.


18

BATTERY CHARGINGThe equalizing charge is a timed, 8-hour

cycle. The cycle can be ended early by inter-rupting the AC power to the charger at anytime during the cycle. Equalizing should onlybe engaged after the batteries have been fullycharged by a normal battery charging cycle.

During this equalizing stage, the batteryvoltage will increase to the equalize voltage.This will cause the battery bank to gasprofusely and will accomplish the following:

1. Removal of residual sulfate. Each time abattery is cycled (discharged and charged), asmall amount of sulfate is left on the plates.Over time, this gradual build-up of sulfate willcompromise the performance of the battery.By applying an equalizing charge, the sulfate isreturned back to the electrolyte, raising thespecific gravity and fully exposing the activematerial of the plates.

2. Bring all cells to the same potential. Alllead-acid batteries are made up of individual 2volt cells. As the battery bank is cycled, slightdifferences in the cells result in different cellvoltages, affecting the overall chargeeffectiveness. Equalizing brings all cells to thesame voltage and the electrolyte in each cell tothe same specific gravity.

3. Mixing up of the electrolyte. Electrolyte inbattery cells tend to separate into layers of acidand water. The vigorous bubbling action of thebattery during equalizing serves to physicallymix the electrolyte. Refer to the RemoteControl Panel and Link Owner’s Manuals foradditional cautions on equalizing.

Note: Do not equalize gel cell batteries.


19

1. Do not equalize gel cell batteries.Check remote default settings.

2. Always monitor the equalize chargecycle. Provide proper ventilation forbattery fumes. Do not allow any sparksduring equalizing. If one or more cellsbegin to overflow, terminate the equalizecycle.

3. Check the battery electrolyte bothbefore and after the equalizing charge.Do not expose the battery plates to air.Leave the battery caps on whileequalizing. Top off after equalizing.

4. Remove all loads from the DCsystem before equalizing. Some DCloads may not tolerate the high chargevoltage.

5. With the Remote Control Panel thebattery state-of-charge LEDs sequenceduring equalizing. When the equalizationcycle is complete, the charge automati-cally goes to float and the green float LEDbattery status light is on. With LinkInstrumentation , the red charge LEDflashes during the equalizing cycle. Whenthe equalization cycle is complete, thecharger automatically goes to float and thegreen float LED is illuminated.

WARNINGS

BATTERY CHARGING


20

BATTERY CHARGER VOLTAGE SETTINGS

PMET 0EPYT 1EPYT 2EPYT 3EPYT

lleCteW *1leG *2leG MGA

F° C° TPECCA TAOLF TPECCA TAOLF TPECCA TAOLF TPECCA TAOLF

021 94 5.21 5.21 0.31 0.31 0.31 0.31 9.21 9.21

011 34 6.31 7.21 5.31 0.31 0.41 4.31 9.31 9.21

001 83 8.31 9.21 7.31 2.31 1.41 5.31 0.41 0.31

09 23 0.41 1.31 8.31 3.31 2.41 6.31 1.41 1.31

08 72 2.41 3.31 0.41 5.31 3.41 7.31 2.41 2.31

**07 **12 4.41 5.31 1.41 6.31 4.41 8.31 3.41 3.31

06 61 6.41 7.31 3.41 8.31 5.41 9.31 4.41 4.31

05 01 8.41 9.31 4.41 9.31 6.41 0.41 5.41 5.31

04 5 0.51 1.41 6.41 1.41 7.41 1.41 6.41 6.31

03 1- 2.51 3.41 7.41 2.41 8.41 2.41 7.41 7.31

* There are two gel battery settings. Check with the battery manufacturer to determine theproper setting for your batteries. Usually, Gel 1 is for long battery life; Gel 2 is for rapid charging.**Default setting when the temperature sensor is not connected.


21

CAUTION This equipment is not ignitionprotected and employs components that canproduce arcs or sparks. To reduce the risk offire or explosions, do not install inunvented compartments containingbatteries or flammable gasses or areas inwhich ignition-protected equipment is required.

INSTALLATION PRECAUTIONS

For continued protection against risk ofelectric shock, use only the ground-faultcircuit interrupter (GFCI) type receptaclesdetailed in this manual. Other types mayfail to operate properly when connected tothis inverter, resulting in a potential shockhazard.

WARNING

CAUTION To reduce the risk of electric shockand prevent premature failure due to corrosion,do not mount where exposed to rain,dripping or spray.

CAUTION To reduce the risk of fire, do notobstruct ventilation openings. Do not mountin a zero clearance compartment,overheating may result.

CAUTION Risk of electrical shock. BothAC & DC voltage sources are terminatedinside this equipment. Before servicingdisconnect all inputs and outputs.

Typical T ools NeededFlathead and Phillips ScrewdriversAllen (Hex) Screwdriver (1/8”)Wrench for connecting battery cables (9/16”)Wire CuttersWire StrippersMisc. assortment of wire ties and connectors

Accessories Needed for InstallationFuse - UL Listed DC Rated slow blow fuse asrequired by NECElectrical wire (10 gauge) for AC input wiring. Consult NEC for proper size for output wiring.Battery Cables 1- Positive, 1-Negative Consult NEC for proper sizeDC fuse cableMounting Screws (4)

Confirm that your shipping carton contains:

• Inverter/Charger• TSC temperature sensor with 15’ cable• Owners Manual• Warranty Card• Jumper for AUX Switch (only used without

Remote Control Panel or Link Instrument)• Wire Nuts

The Freedom 15D and 20D havedual AC Outputs.

Freedom 15D


22

CAUTION Risk of electrical shock. Do notremove cover, no user serviceable partsinside. Refer servicing to qualified servicepersonnel.

The Freedom Combi is appropriate forinstallation in recreational vehicles (RV), andother applications.

It is recommended that installation becompleted by an authorized Heart Interfacetechnical dealer or experienced electrician.

Key Installation Points

1. The unit is designed to mounthorizontally (on a shelf).

2. Allow several inches of clearance aroundthe unit to permit a supply of fresh air to thecooling fan. Do not block any of the vents orlouvers. The thermostat controlled fan pulls airfrom outside the unit. It pulls air across theinternal components, particularly the trans-former and heat sinks, then out the fan vent.

3. Keep the inverter/charger out of theelements and out of direct contact withwater or spray. Failure to do so may result inpremature malfunction from corrosion and voidthe warranty.

4. Mount the unit as close to the batteriesas possible but not in the presence offlammable fumes or in an enclosed batterycompartment.

INSTALLATION5. Keep the overall length of each batterycable less than 10 feet. Do not use frameground or a ground bonding system as acurrent carrying conductor. Run the negative(-)cable directly to the battery bank. If the positive(+) and negative (-) cables run parallel to eachother, twist the cables together. This willminimize the inductive adverse effects of cablelength. Be sure the cable size meets with NECrequirements for your installation.

6. Make sure all wiring conforms to localand national electrical codes. If in doubt,consult with a qualified electrician.

7. To meet electrical codes, a UL Listed DCRated slow blow fuse must be installed in thepositive battery cable within 18 inches of thebattery post. This fuse is intended to protectthe battery and cables against a short circuit.The inverter is protected internally and will notblow a properly sized fuse.

8. Do not connect the battery until youhave read the remainder of the installationsection. Observe proper polarity whenconnecting batteries. Reverse DC polarity willresult in damage to the unit and will void thewarranty. Use care when making the DCconnections.

The Freedom Series is not DC reversepolarity protected. Be very careful toconnect the negative and positive cablescorrectly, otherwise damage will result andthe warranty will be void.

WARNING

Do not mount the unit in an enclosedbattery compartment. Take precautions tokeep dirt and spray off the unit.

WARNING


23

9. Do not back-feed the AC output of theinverter with incoming AC power. Aback-feed occurs when AC power from shorepower or generator is connected to the outputof the inverter. This will damage the inverterand void the warranty. Remember that incoming AC must be fed only to the AC inputand never the AC output. Always check for ACvoltage before connecting wires to the ACoutput. Do NOT turn the inverter ON until allAC connections have been made. Back-feeding the inverter voids the warranty.

10. Do not connect the AC input to the ACoutput. This would be equivalent to pluggingthe battery charger into the inverter. This couldoccur if the unit’s AC output is connected tothe entire leg of a circuit breaker panel, then acircuit breaker on that leg is used to feed thebattery charger input. This will cause the unitto oscillate ON and OFF when the unit is ininverter mode.

11. Always use proper wire andconnectors. The proper battery cable size iscritical. Considerable amperage flows in theDC circuit. Use 2/0 UL Listed Welding Cableterminated on each end with UL Listed or ULRecognized ring terminal connectors. For theterminal, use Thomas & Betts (T&B) partnumber BAL 2038. Be sure the connectors areattached to the cable using a method approvedby the connector manufacturer. For theconnections to meet all requirements, T&Brecommends that each terminal be crimped in

INSTALLATIONtwo places with a pressure of 15 tons using ahexagonal die. The T&B die has a codenumber of 54. After the crimp is made, thebarrel of the terminal and the first inch of thecable needs to be covered in UL Listed or ULRecognized heat shrink tubing. Heart Interfacerecommends a 2-inch length of 3M HDT 0800tubing. Other heat shrink may be used if it isUL Listed or UL Recognized as long as themanufacturer’s directions are followed.

12. If installing in a system which includes anexisting battery charger or AC to DC converter,make sure these do not operate from theinverter output AC power. This sets up apower loop which, due to inefficiencies, willquickly drain the batteries.

13. An Auxiliary Switch port is located on thefront panel of the unit, covered by a flap. Wheninstalling the unit for operation without aRemote Control Panel or Link Instrument, ajumper must be installed in the Aux Switchport. The jumper is shipped in a plastic bagwith other installation parts. DO NOT installthe jumper until all cable connections havebeen made.When using a Remote Control Panel orLink Instrument, the jumper is not used.

Do not connect incoming AC from anysource to the AC output of the inverter.This is known as back-feeding and willdamage the unit and void the warranty.

WARNING

Auxiliary Switch Port

Freedom 20D

JumperActual size 3/8”L x 3/16”W


24

Do not connect incoming AC from anysource to the AC output of the inverter/charger. This is known as back-feedingand will damage the unit and void thewarranty. The Over Temp/Overload andLow Battery LEDs will be blinking rapidly ifthis condition exists.

WARNING

Grounding

For safety purposes, the chassis of theinverter/charger must be connected to your ACground system. Use 8 AWG bare copper orgreen insulated wire, strip one end and use ascrewdriver to secure it to the chassis groundbonding lug on the side of the unit. This wirewill connect to the ground in your AC electricalsystem. Make sure the connection is clean andtight.

The system AC ground bonding terminalis located on the front of the unit under thewiring cover at the bottom of the unit. Thisconnector is for the bare copper or greenground wires from the AC branch circuit supplyand to the AC loads or distribution panel. It isimportant that these AC input and AC outputground wires connect to the AC ground bus inthe circuit breaker panels.

Some installations require heaviergrounding wire. Conform to local and nationalelectrical codes.

More information on grounding can befound in the National Electrical Code andlocal electrical codes.

INSTALLATIONNote: The battery cables are not

connected to the AC ground strip or to thechassis lug of the unit.

Neutral BondingFor safety purposes and NEC code

requirements, the Freedom Combi unitinternally bonds the AC output neutral (white)to the AC output ground (green), when the unitis OFF or in the inverter mode. Whenincoming AC power is applied and the transferswitch is engaged, the internal neutral-to-ground bond is automatically lifted.

When external AC power is applied, thegrounding system is connected to the sourcepower ground, where neutral and earth groundare bonded together. This technique insuressafety in all conditions and conforms to therequirements of the NEC.

Ground Lug

Freedom 20D


25

AC WiringThe AC wires route through the strain

relief mounted in holes on the front of the unit.Use a screwdriver to remove the screwswhich secure the AC wiring compartmentcover plate. Depending upon which model youhave, there can be one or two AC inputs andone or two AC outputs within the AC wiringcompartment. The labeling for the pigtails is onthe front of the unit and is visible when thecover plate is removed. Note: Green wires areconnected to the AC Ground Strip.

Black . . . . . . . . . . . . . . . . . Hot or LineWhite . . . . . . . . . . . . . . . . . Neutral

Conventional metal strain reliefs areprovided. These can be replaced with plasticstrain reliefs for additional corrosion resistanceor 3/4 inch conduit fittings if the wiring will berouted through a conduit.

Appropriate wire gauges must be usedthroughout the installation. Refer to NECspecifications.

AC Input: All inputs from other ACsources must be protected by branch circuitrated circuit breakers.

In the United States, no additional circuitbreakers are required between the inverter/charger and the loads if the service to theinverter/charger is protected by a 20 amperebranch circuit rated breaker. This also appliesto Dual Input models where the inputs may be20 amperes each. In Canada, 15 amperebranch circuit(s) maximum shall provide theservice.

If a 30 ampere service supplies theinverter/charger, additional 20 ampere (15ampere in Canada) maximum branch circuit

INSTALLATION

rated circuit breakers will be required betweenthe inverter/charger and the loads.

Feed one or two 3 conductor AC inputwire(s) through the strain relief and into the ACwiring compartment. Allow 6 inches ofindividual insulated black, white and green wireto work with. Strip 1/2 inch of insulation offeach conductor and connect to the pigtails:Black to Black, White to White, and Green toAC Ground Strip.

Use the wire nuts provided to make thewire connections. You may chose to use buttsplices (not included) to make the wireconnections.

AC Output: Depending on the model youhave, feed one or two 3 conductor AC outputwire groups for the two branch circuit loadsthrough its strain relief. Remember to allow 6inches of individual insulated black, white andgreen wire to work with. Strip 1/2 inch ofinsulation off each conductor and connect tothe pigtails: Black to Black, White to White,and Green to AC Ground Strip.

Tug firmly on each connection to makesure they are secure. Lter, if the unit is notoperating properly, check these connectionsfirst. Carefully tuck the wires into the AC wiringcompartment. Replace the cover plate.

Dual AC Output

INPUTAC GROUND

STRIP AC OUTPUT 1

AC OUTPUT 2

STRAINRELIEF

STRAINRELIEF


26

DC Wiring DC wiring is generally very simple, the

positive (+, may be red for identification) andnegative (-, may be black or yellow foridentification) cables from the inverter/chargerterminal posts are connected to the house orauxiliary battery. Connection to the enginestarter battery is not recommended.

High current will pass through the DCwiring. All wires must be properly sized andall connections clean and tight. It isrecommended that the battery cable lengthdoes not exceed 10 feet.

Battery cables should be connected to theinverter/charger before any connections aremade to the battery. Follow the batteryhardware stackup diagram.

• Remove the negative (-) battery cablecover from the unit and attach the batterycable. Tighten the battery terminal bolts to atorque value between 160 inch-pounds and180 inch--pounds. Replace the cover for thenegative terminal before removing the cover forthe positive terminal.

INSTALLATION

Ground Fault Circult InterruptersTo conform to NEC regulations, certain

branch circuits must be equipped with aGround Fault Circuit Interrupter (GFCI). Pleaseconsult the code or a qualified electrician fordetails. Any such branch circuits must beprotected by a brand rated circuit breakerconsistent with the GFCI rating. UnderwritersLaboratories has tested the following GFCI,and its use is recommended. ReceptacleType:

Pass & SeymourCatalog Number 1591Rated: 15 Amps at 120 Volts AC

Remote Control WiringIf installing a remote panel, route the

remote cable and connect to the Remote jackon the front of the unit. Refer to the RemoteControl Panel or Link Owner’s Manual for moreinformation.

TSC Temperature SensorIf installing the TSC (Temperature

Sensitive Charging) sensor, connect the ringterminal end to the positive battery post,complete the routing of the RJ11 cable (15 feetsupplied) and connect the plug end to the TSCjack on the front of the unit

Freedom Inverter/Chargers are not protected against DC reverse polarity. Be very careful to connect thenegative and positive cables correctly or damage will result and the warranty will be void.

WARNING

Bolt

Lock Washer

Flat Washer

Battery Cable

Battery CableHardware StackupDiagram

CAUTION Improper stackup may result inexcessive heat and damage to the unit.

Inverter/Charger

RJ11 Cable

Battery

Freedom 20D shown.

TSC Jack


27

• Remove the positive (+) battery cableterminal cover from the unit and attach thebattery cable. Tighten the battery terminal boltsto a torque value between 160 inch-poundsand 180 inch-pounds. Replace the cover forthe positive terminal.

The negative (-) cable should beconnected directly to the negative post of thehouse or auxiliary battery bank or the groundside of a current shunt. Tighten securely.

The positive (+) battery cable must befused and connected to the positive post of thehouse or auxiliary battery bank, or through aselector switch to one or more battery banks.

A spark may be generated when the finalbattery connection is made. This is normal; donot be alarmed. However, do not make the finalconnection in the presence of flammablefumes.

If multiple batteries are used, theinterconnecting jumper cables must be thesame AWG or larger as those connected tothe inverter/charger.

NOTE: If installing in a vehicle, do not use thevehicle frame as the negative conductor.

If multiple battery banks are to becharged, a battery bank selector switch can beinstalled, allowing the banks to be chargedeither individually or simultaneously. A solenoidcan also be used. The PathMaker BatteryCombiner, by Heart Interface, may be used toconnect multiple battery banks. ThePathMaker battery combiner is available fromyour Heart dealer.

INSTALLATION

POSITIVE (+)

(Battery Cable

Cover on)

PathMaker Models70 Amp, 2 Channel100 Amp, 2 Channel100 Amp, 3 Channel200 Amp, 2 Channel200 Amp, 3 Channel

PathMaker 100, 2 Channel

NEGATIVE (-)

(Battery Cable

Cover on)

Freedom 15D


28

FUSE HOLDER

FUSE

BATTERYCABLEINVERTER

CABLE

FLAT WASHER

LOCK WASHER

NUT

COMPRESSION / RING TERMINAL

INSTALLATION

Improper stack up of hardware will causeexcessive heat and fuse failure. Stack upas shown.

WARNING

+ (red)

EXPLODED VIEW

OF FUSE ASSEMBLY

+

_

Battery Cable FusingA fuse is required by the NEC to protect

the battery and cables. A UL Listed DC ratedslow blow fuse must be installed in the positive(+) battery cable, within 18 inches of thebattery.

Recommended Fuse: UL Listed Class TJLLN with a DC Rating. This fuse with fuseholder is available from your dealer or HeartInterface.

FUSE HOLDER

FUSE

BATTERYCABLE

INVERTERCABLE

FLAT WASHER

LOCK WASHER

NUT

RING / RING TERMINAL

For Freedom 15 & 15D200 Amp Fuse & Holder PN# 84-4155-00 (C/R)*200 Amp Fuse & Holder PN# 84-4158-00 (R/R)**200 Amp Fuse Only PN# 84-4157-00

For Freedom 20 & 20D300 Amp Fuse & Holder PN# 84-4156-00 (C/R)*300 Amp Fuse & Holder PN# 84-4154-00 (R/R)**300 Amp Fuse Only PN# 84-4151-00

* Compression / Ring Terminal** Ring / Ring Terminal


29

INSTALLATION

Follow these instructions to insure properstart up and confirm that the installation iscorrect.

1. Check to make sure Invert and Chargeare OFF. The INVERT LED should not beilluminated, the CHARGE LED should beblinking (charger ready but no external ACpower available). If using a Remote ControlPanel or a Link Instrument, make sure inverterand charger are OFF.

2. Check battery polarity. If the unit wasconnected to the battery with reverse polarity,the unit will be damaged.

3. Check the battery voltage and ensureit is within proper range for the unit (10-15.5VDC).

4. Install the jumper in the AuxiliarySwitch port (AUX SWITCH), if using the in-verter without remote. If operating the inverterwith a remote, the jumper should not be used.

Do not apply shore power orgenerator power without preforming thefollowing steps:

1. Test the inverter function: • With no loads connected to the output ofthe inverter, turn the INVERT Switch ON. TheINVERT LED should be blinking green. If usinga remote, turn ON the inverter with the switchon the Remote Control Panel or LinkInstrument.

• The Freedom unit will produce a slightbuzz. If using a Remote Control Panel or LinkInstrument the INVERT/ CHARGE LEDs willilluminate and the voltage indicator will displaythe battery voltage. The DC Amps LED will notbe lit because the unit is in the idle mode.

Do not turn the inverter ON beforeeliminating any possibility of backfeed.

WARNING

• Add a load of 7 watts or more to the outputof the inverter. A 40 watt incandescent lightbulb will work fine. The DC Amps LEDs on theremote will indicate the DC draw from thebattery through the inverter.

• Leave the load connected and turn OFFthe INVERT mode by pressing the INVERTswitch or turn OFF the INVERT mode from theRemote Control Panel or Link Instrument.

2. Test the transfer function: • Be sure the unit is OFF, the INVERT andCHARGE LEDs are not illuminated. Applyshore power. If there is a back-feed in theinstallation, the unit will protect itself, the LOWBATTERY and OVERTEMP/OVERLOAD LEDwill both be blinking rapidly (5 times persecond). Do not proceed until the backfeedcondition has been corrected. • Once shore power has been applied to theunit, there will be approximately an 8 seconddelay. Then the unit should transfer shorepower and power the load. If this does nothappen, do not proceed. If the LOW BATTERYand OVERLOAD/OVERTEMP LEDs are blink-ing rapidly or if you are using a Remote ControlPanel or Link Instrument, check the panel forback-feed indication. The panel will show anoverload condition. Eliminate the back-feedcondition.

Freedom 15D


30

NOTE: For low power system shut downmode, both the INVERT and CHARGE LEDsmust be OFF.

• Testing for backfeed. If a backfeedcondition is indicated, disconnect from shorepower and disconnect the AC output wires onthe inverter. Make sure the inverter is OFF.Apply shore power and measure forvoltage between the black and white wires thatwere attached to the inverter output feeding theelectrical panel or loads, not the inverter outputwires. If there is voltage on these wires, aback-feed condition exists and must becorrected or damage will result.

3. Test the battery charger function: • With shore power applied and thetransfer switch engaged, the battery chargershould be in operation. The CHARGE LED willblink for 8 seconds. After the 8 seconds, theunit will enter the charge mode and the LEDwill be illuminated. (NOTE: When usingTemperature Sensitive Charging, this time maybe longer.)

NOTE: When AC is available, the unit willautomatically default to charge mode withoutthe operator setting the unit in CHARGE mode.It is necessary to press the CHARGE switchOFF, if you do not want to charge.

Verify the charger is working by using avolt meter. The battery voltage should graduallyincrease. If using a Remote Control Panel, theDC Amps LED indicates the current thecharger is putting out and the DC Volts LEDindicates an increase in battery voltage.

INSTALLATION • Turn the INVERT ON, the green LEDshould blink. Remove shore power and theinverter should automatically pick up the ACload when shore power is removed.

Repeat the test for transfer and batterycharger with the generator if you have one.

Congratulations, you have completed asuccessful installation.

Freedom 20D


31

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32

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33

Alternating Current (AC) An electric currentthat reverses direction at regular intervals.Sources of alternating current are shorepower, generator power, inverter power orhousehold current.

Ampere (Amp, A) The unit of measure ofelectron flow rate of current through a circuit.

Ampere-hour (Amp-Hr., AH) A unit ofmeasure for a battery’s electrical storagecapacity, obtained by multiplying the current inamperes by the time in hours of discharge(Example: a battery which delivers 5 amperesfor 20 hours delivers 5 amperes times 20hours, or 100 Amp-Hr. of capacity.)

Ampere-Hour Capacity The ability of a fullycharged battery to deliver a specified quantityof electricity (Amp-Hr., AH) at a given rate(Amp, A) over a definite period of time (Hr.).The capacity of a battery depends upon anumber of factors such as: active material,weight, density, adhesion to grid, number,design and dimensions of plates, plate spacingdesign of separators, specific gravity andquantity of available electrolyte, grid alloys, finallimiting voltage, discharge rate, temperature,internal and external resistance, age and life ofthe battery (bank).

AGM (Absorbed Glass Mat) Battery A leadacid, maintenance-free battery.

AWG (American Wire Gauge) A standardused to measure the size of wire.

Circuit An electric circuit is the path of anelectric current. A closed circuit has acomplete path. An open circuit has a broken ordisconnected path.

Circuit (Series) A circuit which has only onepath for the current to flow. Batteries arrangedin series are connected with the negative of the

GLOSSARYfirst to the positive of the second, negative ofthe second to the positive of the third, etc. Iftwo 6 Volt batteries of 50 ampere-hourscapacity are connected in series, the circuitvoltage is equal to the sum of the two batteryvoltages, or 12 Volts, and the ampere-hourcapacity of the combination is 50ampere-hours.

Circuit (Parallel) A circuit which providesmore than one path for current flow. A parallelarrangement of batteries (of like voltage andcapacity) would have all positive terminalsconnected to a conductor and all negativeterminals connected to another conductor. Iftwo 12 Volt batteries of 50 ampere-hourcapacity each are connected in parallel, thecircuit voltage is 12 Volts, and the ampere-hourcapacity of the combination is 100ampere-hours.

Combi Freedom CombiTM is a trademark ofHeart Interface to indicate a combinationinverter/charger.

Current The rate of flow of electricity or themovement rate of electrons along a conductor.It is comparable to the flow of a stream ofwater. The unit of measure for current isampere.

Cycle In a battery, one discharge plus onerecharge equals one cycle.

Direct Current (DC) Current that flowscontinuously in one direction such as that frombatteries, photovoltaics, alternators, chargersand DC generators.


34

Equalize Charge A controlled overcharge ofthe batteries which brings all cells up to thesame voltage potential, extends the battery life,restores capacity and mixes the electrolyte.This can only be done using the FreedomRemote Control Panel or a Link Instrument.

Gel Cell Battery A type of battery that uses agelled electrolyte solution. These batteries aresealed and are virtually maintenance-free. Notall sealed batteries are the gel cell type.

GFCI (Ground Fault Circuit Interrupter) Aprotective device that rapidly de-energizes acircuit when current to ground exceeds apredetermined value.

Ground The reference potential of a circuit. Inautomotive use, the result of attaching onebattery cable to the body or frame which isused as a path for completing a circuit in lieu ofa direct wire from a component. This methodis not suitable for connecting the negativecable of the inverter to ground. Instead, routethe cable directly to the negative terminal of thebattery.

LED (Light Emitting Diode) Indicator light.

LINK Instrument These panels monitor singleand dual battery banks. Some models provideremote management of Freedom Inverter/Chargers. Available in 4 models: LINK 10,LINK 20, LINK 1000, LINK 2000, LINK 2000R.

NEC National Electric Code

Negative Designating or pertaining toelectrical potential. The negative terminal is thepoint from which electrons flow duringdischarge.

Ohm A unit for measuring electricalresistance.

Ohm’s Law Expresses the relationshipbetween Voltage (V) and Current (I) in anelectrical circuit with resistance (R). It can beexpressed as follows: V=IR. If any two of thethree values are known, the third value can becalculated by using the above formula.

Positive Designating or pertaining to electricalpotential; opposite of negative. The positivebattery terminal is the point where electronsreturn to the battery during discharge.

Power Sharing The feature of the charger toreduce its output when the AC power beingconsumed by the charger and external ACloads connected to the output of the inverterare in excess of the input breaker rating.

TSC Abbreviation for Temperature SensitiveCharging. The ability of the charger to adjust itscharging voltage based on the temperaturesensed at the battery bank if a temperatureprobe is used.

Volt The unit of measure for electric potential.

Watt The unit for measuring electrical power,i.e., the rate of doing work, in moving electronsby or against an electric potential.

Watt-Hour (Watt-HR, WH) The unit formeasuring electrical energy which equalsWatts x Hours.

Wet Cell Battery A type of battery that usesliquid as an electrolyte. The wet cell batteryrequires periodic maintenance; cleaning theconnections, checking the electrolyte level andperforming an equalization cycle.

GLOSSARY


35

SPECIFICATIONS

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36

WARRANTY

© 1998 Heart Interface Corporation. All rights reserved.

Inverter/Chargers

Your Heart Interface Freedom 458 SeriesCombiTM Inverter/Charger is under limitedwarranty for 30 months from date of purchase.

Terms of this warranty are detailed onthe warranty registration card. Pleasecomplete this card and return it to HeartInterface to register your warranty.

If the unit requires service, contact HeartInterface by telephone. The service technicianwill ask for the model and serial number of yourunit. Please have this information ready.

Phone numbers: (253) 872-7225(800) 446-6180 (outside 253 area code)

A return authorization number will berequired on all returns. This number is issuedby the service technician and should be writtenon the outside of the packaging

You must ship the unit to Heart Interfaceor a field service center freight prepaid.

UL

Documents

OWNER’S MANUAL - serenitysys.com 458 Series_COMBI... · Inverter/ Charger. Heart Interface takes pride in manufacturing quality ... This owner’s manual describes the Freedom 458