Xantrex Technology Freedom SW 2000 user service Connecting the Battery Temperature Sensor BTS

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Installing the Inverter/Charger

Step 5: Connecting the Battery Temperature Sensor (BTS)

Installing a battery temperature sensor (BTS) extends the life of a battery by preventing overcharging in warm temperatures and undercharging in cold temperatures. With a BTS monitoring the battery temperature, the voltage delivered to the battery is adjusted according to the battery’s actual temperature.

The BTS has a self-adhesive backing and attaches to the side of the battery. A 25-foot (7.6 m) cable is supplied with the BTS, as shown below.

Connector

Sensor cable

installers only.

Mounting Options

You can mount the BTS in one of two ways:

•Mounting the sensor to the negative battery post allows the internal battery temperature to be sensed and provides the most accurate results.

•Attaching the sensor to the side of the battery using the self-adhesive backing also provides good results in most situations.

Sensor

Figure 6 BTS with Cable

This guide for use by qualified

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Contents Freedom SW Sine Wave Inverter/Charger Page This guide for use by qualified installers only Statement of Hazard About This GuideRelated Information Electrical Shock Hazard Important Safety InstructionsExplosion Hazard Fire and Burn HazardPrecautions When Working With Batteries Exposure to Chemicals and Gases Hazard Precautions When Preparing to ChargeRisk of Damage to the INVERTER/CHARGER Limitations on USE RegulatoryContents Page Cabling and Hook-up Configurations Page Introduction Materials List Materials ListElectrical Shock and Fire Hazards Installation InformationBefore You Begin the Installation Installation CodesMounting Location of the Freedom SW Planning the InstallationTwo Key Performance Factors Size and Length of DC CablesSample Vehicle Electrical System Configuration AC and DC Components including wire and breaker sizesFor wire and breaker size information AC Loads AC ComponentsAC Input AC OutputTested GFCIs Distribution PanelsAC Output Protection Gfci RequirementsAC Output Neutral Bonding AC WiringBatteries DC ComponentsDC Disconnects and Over-Current Devices DC Grounding DC CablingHeavy Load Tools Installation Tools and MaterialsMaterials Overview Installing the Inverter/ChargerFire and Explosion Hazard Choosing a Location for the Inverter/ChargerHeat Hazard Close to BatteryBattery acid SafeConsiderations Mounting the Inverter/ChargerTo mount the inverter/charger Approved Mounting Orientation Orientation? Comment Approved Mounting Orientation Orientation? General AC Wiring Considerations Connecting the AC Input and AC Output WiresFIRE, Electrical SHOCK, and Energy Hazards To make the AC input connections Connecting AC Input WiresEquipment Damage Damage other equipmentConnecting AC Output Wires Output AC Wire Size To prepare the DC cables Connecting the DC CablesDC Connection Precautions Preparing the CablesElectrical Shock and Fire Hazard Guidelines for Routing the DC CablesFire Hazard Connecting the DC Cables to the Inverter/ChargerEquipment Damage DUE to Reverse Polarity DC Terminal Covers To connect the chassis ground 2000Mounting Options Connecting the Battery Temperature Sensor BTSTo mount the sensor on the negative battery terminal Mounting to the Negative Battery TerminalConnecting the BTS Cable to BTS Jack To mount the sensor on the battery case Mounting to the Side of the Battery CasePerforming Checks Prior to Initial Start-Up Testing in Invert Mode Testing Your InstallationInstallation Complete Testing in Charge ModeInverter/Charger Physical Specifications Calculate Battery Size Battery InformationBattery Bank Sizing Calculating Battery SizeBattery Information Battery Bank Sizing Worksheet Battery BanksRestrictions on Motor Size = Total watt-hours of AC load between charges Parallel Connection Cabling and Hook-up ConfigurationsBatteries Connected in Series Series ConnectionBatteries in Series-Parallel Connections Series-Parallel ConnectionsPage Page Xantrex Technology Inc