VANNER POWER GROUP - 2 - Power for EMS Vehicles
IFM1 Interface Module
AC POWER FOR EMERGENCY VEHICLES
Model 20-1050CUL/CULW AC Power
Inverter System
Key Features
•1050 Watt Power Inverter
• Adjustable Battery Charger/Conditioner
55 Amp-High Setting/15 Amp-Low Setting
•Automatic AC Transfer Switch
•UL Certified to Federal Specification KKK-A-1822D
•Underwriters Laboratories Listed (UL and C-UL Listed)
•Remote Monitor/Control System (Requires IFM1)
•Inverter Lockout Control Interlock (Requires IFM1)
•Ground Fault (GFCI) Protected AC Output
The Vanner 20-1050CUL/CULW AC Power System combines a
powerful DC to AC power 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 allow 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.
12 Volt Power Inverter
The power 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 sine wave 120 volt AC power. This
AC output power is precisely regulated at 120 Volts ±5% and
60Hz ± 0.1Hz.
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 “topped up”. 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
120 VAC output receptacle is switched from shore/utility 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.
Model 20-1050CULW
The difference between a hardwire unit (20-1050CULW) and a
non-hardwire unit (20-1050CUL) is in the 120 VAC input wiring
to the Automatic AC Transfer Switch. The actual function of the
Transfer Relay system in the 20-1050CULW is identical to the
20-1050CUL; however, on the 20-1050CULW system, the AC
input is hardwired through a wiring box located at the back
(4 pages)
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