MT VERNON-AE TROUBLE SHOOTING MANUAL
7020-057C
4-24-08
BATTERY BACK-UP SYSTEM
PAGE 6
12 VOLT DEEP CYCLE BATTERY AND THE BATTERY
CORD (#12VCORD-AE) IS NEEDED TO POWER THE
SYSTEM.
A/C POWER MUST BE SHUT OFF OR THE POWER
CORD DISCONNECTED FOR THE BATTERY BACK UP
MODE TO ENGAGE. THE WALL CONTROL WILL WALK
YOU THROUGH THE LIGHT-UP PROCEDURES.
(Note: Igniter will not work during battery operation)
CONTROL BOARD
12 volt battery
(VWLPDWHGDPSGUDZ
LVEHWZHHQ DPSV
during operation)
MAINT BURN WILL DISPLAY
WHEN THE THERMOSTAT HAS
REACHED THE SET ROOM
TEMPERATURE AND WILL RUN
ON LOW UNTIL IT REACHES ITS
AUTOCLEAN CYCLE TIME.
PN# 12VCORD-AE
LQFKHVORQJ
BATTERY WILL NEED TO BE CHANGED OR
CHARGED WHEN VOLTAGE DROPS BELOW 10.
