 12 Volt Power Inverter
The inverter is a highly reliable electronic power conversion unit that utilizes MOSFET power
semiconductors and a microprocessor controller. It converts 12 volt DC battery power into
1050 watts of modified ed sine-wave 120 volt AC power. This AC output power is precisely regulated
at 120 volts +/- 5% and 60Hz +/- 0.1Hz.
Model 20-1050CUL/CULW AC Power Inverter System
The Vanner 20-1050CUL/CULW AC Power System combines a powerful DC to AC inverter
with an automatic battery charger/conditioner and a 30-amp AC transfer switch. When
connected to shore power (AC utility power), the vehicle’s battery is charged, then automatically
maintained in full charge condition. The shore power is automatically connected to the
system’s AC output receptacle to supply power to the AC loads. When shore power is disconnected
(vehicle underway), the automatic transfer switch connects the AC output receptacle to the power inverter, which obtains power from the 12 volt battery.
 The 20-1050CUL/CULW system contains a front panel LED indicator status panel and interface connector for the remote monitor/control units. A set of remote options allows flexibility in configuring the inverter system for specific needs. The optional IFM1 Interface Module enables the two remote status panels, system ON/OFF switch and the Inverter Lockout Interlock to be connected to the 20-1050CUL/CULW system.
Battery Charger/Conditioner
When the system is connected to shore/utility power, the battery charger/conditioner will automatically charge the battery, then keep it fully charged. The system’s microprocessor controls the charging sequence, starting with the Bulk charge (55 amps on High setting, 15 amps on Low setting) mode. When the battery is fully charged, it switches to the ready/maintenance mode to keep the battery’s charge “topped off ”. The unit is designed to charge either lead acid
flooded (wet) or gel type batteries.
Automatic AC Transfer Switch
 The 20-1050CUL system is provided with a 2.75 ft. AC power line cord. When connected to shore/utility power, the internal transfer switch routes the incoming 120 volt AC power to the AC output receptacle and to the input of the battery charger/conditioner. In this mode, loads connected to the AC output receptacle are supplied with shore/utility power and the battery charger/conditioner will automatically charge and maintain the battery. When the shore/utility power is disconnected, the 120Vac output receptacle is switched from shore power to the power inverter. If the inverter switch is ON, the power inverter immediately (within 30 ms) supplies AC power to the AC output receptacle. Hardwiring the AC Input
There are situations where AC loads such as medical equipment or quartz lights (which usually operate from the inverter power during vehicle operation) need to operate from shore power while the charger is operating. In situations such as this, the system installer can use the model 20-1050CULW with a hardwire input to set up the system to supply 20 or 30 amp shore line power to the inverter unit. When shore power is supplied to the 20-1050CULW, the inverter is protected in the following ways: 1. The shore power input passes through the unit’s transfer relays and into two circuitbreakers; 2. One breaker is 15 amps to protect the AC output receptacle. The other circuit breaker is 15 amps to protect the battery charger AC input circuit. |
