LifeWay Electric Heater User Manual page 5

C H A P T E R 1
I
NTRODUCTION
Keep this manual and the System Installation Guide in the folder mounted inside
the unit.
This unit is a microprocessor controlled PWM (Pulse Width Modulated) pure sine wave
based DC to AC power inverter utilizing IGBT technology. It integrates a fully automatic 3-
rate battery charger, a solid-state transfer system, control circuitry, self testing and
recording digital meter display, and maintenance free sealed lead calcium type batteries.
The system components are carefully matched to make the unit a completely self-
contained, fully automatic standby power source for operation on lighting loads. The
batteries are sized and tested per UL-924 and Life Safety Code ANSI / NFPA 101,
providing emergency power for a minimum of 90 minutes.
If the duration of a power failure is greater than the batteries storage capability, the
inverter will automatically shut down when the battery voltage reaches 85% of the
nominal DC voltage. This feature protects the battery from being permanently damaged
from a deep discharge that could cause cell reversal. This battery protection feature is
called "Low Voltage Disconnect" or L.V.D.
When the AC power is restored after a full discharge, the system will be ready for another
power failure within 24hrs. If another power failure occurs before the 24-hour recharge
time, the run time will be decreased.
The front panel display incorporates an alphanumeric 2x20 LCD character display, LED
status indicators and a 4 x 4 keypad. All user interface functions are available from the
front panel assembly.
Utilizing a small footprint, this unit is for use with lighting load including quartz,
incandescent, and fluorescent and halogen.
HOW TO USE THIS MANUAL
This manual tells you how to start, operate, and communicate with your unit and lets you
know how to get more information for special situations.
Please record your unit's part number, serial number, and model number below. You can
find these numbers on the labels on the inside panel.
Part Number __________________________
Serial Number __________________________
Model Number ___________________________
4 114195 – System Users Manual