United States Stove Company 4840 - Manual (Page 9)

Ussc 9
HOW YOUR HEATER WORKS
Your pellet heater operates on a timer based auger fuel feed system, that is controlled by a digital circuit board. The fuel is delivered
from the auger into a burn pot, which is the vessel where the combustion process takes place. Based upon the heat ranges (1-5), the
heater will feed the appropriate amount of fuel to reach a set temperature range. Note that the amount of heat produced by the heater
is proportional to the rate of the fuel that is burned. Your heater is equipped with an automatic ignition system that should ignite the
fuel within 5-10 minutes from pressing the ON button. As pellets fall into the burn pot and ignite, outside air is drawn in to feed
the fi re by a combustion blower. The post combustion gases are then pulled through the heat exchanger as they are traveling out
the exhaust. As the heater warms up, room air is circulated around the heat exchanger by means of a room air blower, distributing
warm air into the room.
Because a forced draft pressure is required for the combustion process inside your heater, it is extremely important that the exhaust
system be properly maintained. And, that when operating your heater, you make sure that the viewing and combustion doors are
properly closed and/or sealed.
Turning the heater ON/OFF, as well as adjustments for the fuel feed rate is performed by pressing the appropriate button(s) on the
control panel which is located on the front, lower left-hand corner of your heater.
ON/OFF
• Pressing the “ON” button on the control panel will begin the start-up sequence for the heater. Fuel will begin to feed through
the auger feed system then ignite after approx. 5 minutes.
• Pressing the “OFF” button on the control panel will cause the heater to enter its shut-down sequence. The fuel feed system
will stop pulling fuel from the hopper and, once the fi re goes out and the heater cools down, the fans will stop running.
HEAT RANGE
• Pressing the “Heat Range” arrows, up or down, will adjust the amount of fuel being delivered to the burn pot.
• The exhaust blower will start. Note that this appliance pulses the exhaust blower in order to achieve the proper air to fuel
ratio, and to also aid in the cleaning of the burn pot.
• Once the heater reaches a set temperature, the room fan will come on.
LIGHT (LED) INDICATORS
• Heat Range LED - displays the selected heat
setting. Number “1” LED lights to display
that there is power to unit even if the heater
is off.
• Door Sw LED - lights when front viewing
door is opened or if the hopper lid is raised.
• Press Sw LED - lights if pressure is lost inside
the combustion chamber. (See “Errors”)
• E LED - Operational Error (See “Errors”)
• ON LED - Flashes in start-up mode. On solid
during Run mode
• OFF LED - Flashes during shut down mode
CONTROL PANEL OVERVIEW
UNDERSTANDING YOUR HEATER