VANNER
Incorporated
Owner’s Manual
LifeStar Owner’s Manual - 5 -
Battery Charger
The 20-1050CUL-DC Battery Charger's superior design incorporates a multi-stage charger. This design
enables the unit to automatically charge batteries, maintaining the battery's integrity and reducing the
likelihood of premature failure.
* Bulk Absorption Charge Mode
While in the Bulk Charge mode, the unit continuously charges at a constant current of 55 Amps (high
setting) this is the factory setting, or 15.0 Amps (low setting) The unit will charge until battery voltage
reaches 14.2 VDC for flooded battery setting, or 14.1 VDC for gel battery setting. The unit then supplies a
fixed voltage for one hour.
* Ready/Maintenance Mode
The charger automatically enters the Ready/Maintenance mode, maintaining the battery’s proper voltage
of 13.2 VDC for flooded battery setting, or 13.6 VDC for gel battery setting. This Ready/Maintenance
mode is designed to eliminate gassing (overcharging), helping to extend the life of the battery.
A Setup Switch is located on the front panel for selecting the type of battery (Flooded Lead Acid or Gel
Lead Acid), charger output current (High/Low), and Load Demand (On/Off).
Remote Control
Built-in remote control capability is provided for use with a customer supplied +12v signal and with a
customer supplied Ground signal. Either one, both or neither may be used.
To activate +12v remote control set the dip switch labeled IGNITION to the ON position. Connect the
+12v remote control signal wire to the compression terminal labeled IGNITION.
To activate GROUND control set the dip switch labeled REMOTE to the ON position. Connect the
GROUND control signal wire to the compression terminal labeled REMOTE.
If no remote control is required set both dip switches to the OFF position.
The unit can be used with the IFM1 Interface Module and is fully backward compatible for retrofitting
installations that already have the IFM1 Interface Module. To use the IFM1 set the dip switches labeled
IGNITION and GROUND to the OFF position. Plug the IFM1 modular cord into either 8-pin socket.
DC Power Output
The 20-1050CUL-DC DC Power Output complies with KKK section 3.7.7.2 for PORTABLE EQUIPMENT
CHARGING CIRCUIT. Which states “A circuit shall be furnished for charging all portable battery powered
devices, i.e. suction units, hand lights, portable radios, etc. This circuit shall prevent discharge of chassis
batteries by only permitting the charging of portable devices when the vehicle is either running or the
optional battery conditioner is connected to shore power. Circuit breaker protection shall be provided and
shall have a minimum 10 amp capacity. An additional tagged, identified lead shall be furnished in both the
cab and module for connection of additional (future) portable equipment that requires recharging.”
DC Power (battery power) is available while +12V Remote Switch Terminal is energized and while the
20-1050CUL-DC is in battery charger mode. DC output is protected by a 20A circuit breaker label “DC
Power”
(24 pages)
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