Country Flame CF-04 - Manual (Page 48)

Version 2.0e 48
APPENDIX D: CROSSFIRE THEORY OF OPERATION
STARTUP PHASE
Startup procedure assumes that proper electrical power is being provided from the electrical grid (Power
Company) and the stove is in proper working order. Approaching the control panel no lights will be
illuminated.
Upon pressing the on/off switch the Crossfire’s startup phase will be activated.
The stove has now entered the “startup” phase. Pellets should have already been placed in the burn pot (only
required if 100% corn fuel is being used.) Manually ignite the stove to burn the pellets and heat up the firebox.
It is important to have a “hot” fire of pellets ignited to ensure that once corn starts feeding, the corn will sustain
self-combustion. Corn fuel will further cool the combustion chamber if the pellet fire is too small (cool.) Self-
combustion will not occur without relighting the stove. Once the pellet fire is burning properly and a bed of
red coals can be seen, the stove should automatically begin to feed fuel into the firepot or approximately 3 ½
minutes after the startup phase began. The total startup time can take between 10 to 20 minutes depending on
outside weather conditions, the temperature of the stove, the quality and moisture content of the fuel being
used, and other site specific factors. It will be evident to the operator when the burn phase has begun as the
room air fan will kick on. Warm air can be felt being blown from the heat exchanger tubes above the door.
BURN PHASE
Multiple heat lights indicate the control panel burn phase. There are five red lights used to indicate the
relationship to the system’s heat settings. Pushing the control panel’s HEAT LEVEL switch will cause a heat
light to cycle one level up from Heat 1 through Heat 5. Once the Heat 5 setting has been reached, if the HEAT
LEVEL button is pushed again, the heat setting will cycle over again starting at Heat 1. The operator controls
the heat output of the stove by utilizing Heat 1 through Heat 5 settings. Heat 1 setting provides the lowest heat
output from the system and the longest time between refills of the fuel hopper. Heat 5 provides the maximum
heat output from the system and the shortest time between refills of the fuel hopper. Changing any heat setting
up or down by one increment will cause a delayed (it takes time for both the fuel and air adjustments to impact
the burn chamber) increase or decrease in the heat output of the system. Changing any heat setting up or down
by two or more increments will require an increased amount of time before the burn rate of the stove stabilizes.
The control system automatically adjusts to the requested heat settings without further intervention of the
operator. NOTE: The control panel display immediately reflects the final heat setting requested by the
operator regardless of how many incremental changes occur but the operator should remember that it takes
“time” for the stove to stabilize to the new heat setting.
COOL DOWN PHASE
Any time the system is switched off by pressing the Intelli-Choice Control Board on/off switch until the power
light turns red during normal stove burn operations, the control board will ensure the system will revert to the
cool down phase. During the cool down phase the room air and exhaust fans will be operated at full speed.
The fuel feed (auger) motor will cease to operate thereby ensuring minimal time for the burn phase to be
extinguished. This cool down process will continue until such time as the control system senses that the stove
has been properly cooled down.