norMaL autoMatIC oPeratIon
When power is turned on the furnace is cold, the
draft will be closed. As the temperature in the fire box
rises to approximately 100-120 degrees F., the auto-
matic draft opens allowing combustion air to enter
the fire chamber. As the temperature in the fire cham-
ber rises, the automatic draft will begin its throttling
process until it is completely closed allowing maxi-
mum furnace idling. (When it reaches your desired
setting.)
As the outer heat jacket temperature rises past 105
degrees F., the fan starts automatically and contin-
ues to operate until the fire burns down and the heat
jacket cools to approximately 90 degrees F.
autoMatIC DraFt ControL
Indicating lights are furnished on the electric control
to provide the following:
A. Thermocouple indicator light is on when there is
an open circuit in the thermocouple. The auto-
matic draft will remain closed. Replace the ther-
mocouple.
B. Low temperature indicator light is on when the
fire chamber is below 70 – 100 degrees F. and the
automatic draft is closed.
C. The draft indicator lights are on indicating that
draft stages are open.
D. High temperature indicating light is on when
there is a high temperature in the fire chamber.
Tighten door adjustment to eliminate door leaks.
See sticker on the Electronic Draft Controller.
BOX 422 • TOWER, MN 55790 • USA • Tel (218) 753-2330 • www.lamppakuuma.com
11
WarnInG
LaCk oF enouGH aIr For ProPer
CoMBuStIon
If your house is fairly well insulated and relatively
air tight, it may be necessary for you to think of
providing an additional source of fresh air into
your house to eliminate the possibility of starving
the wood burning stove of the necessary amount
for good combustion.
If you have a clothes dryer, kitchen or a bathroom
exhaust fans, or even a fireplace burning and
is competing for the available combustion air
which could cause improper combustion. This
could result in some smoke backing up into your
house.
You might need to look at installing an air to air
exchanger or finding another way to get some
fresh air to prevent the smoke back up. Refer
to Figure 15. For any questions feel free to call
1-800-358-2049.
Figure 15
FreSH aIr DuCt For
tIGHtLy SeaLeD HouSe
DuCt
FurnaCe
FreSH aIr
DuCt
Add more air to the furnace room. Your home may
be so airtight, not enough oxygen is reaching the fire.
Your heating contractor can do this.
CautIon
tHe WarM-aIr SuPPLy outLet oF tHe
SuPPLeMentary FurnaCe SHaLL not Be
ConneCteD to tHe CoLD-aIr return
InLet oF tHe CentraL FurnaCe, DaMaGe
May reSuLt to tHe CoMPonentS oF tHe
CentraL FurnaCe.
