9
OPERATING YOUR WOODCHUCK
FURNACE
STARTUP
Never leave ash pan in unit. Use only when cleaning
out ashes. Ash pan will block the forced draft from com-
ing in under the fire from the forced draft blower.
The first thing to check is that your main blower and
draft blower are in working order before lighting a fire.
To check the operation of the main blower, push the
manual override button on the fan/limit control for test-
ing. When finished, reset to automatic position, figure 5.
Next, turn the thermostat upstairs to a higher tempera-
ture then room temperature so the draft blower turns
on. The two toggle switches on the front of the comfort
control center need to be in the up or on position. With
both toggle switches in the on position and the thermo-
stat turned up to call for heat, test the draft blower.
NOTE: All models are equipped with a low limit which
will not allow the auto draft to operate when the unit is
not warm. To start the auto draft, switch the Lo limit tog-
gle switch on the comfort control center to On, figure
6.
ELECTRICAL SWITCHES
The left hand switch (Draft blower lo-limit bypass
switch) is also a start up switch. When the switch is in
the OFF-AUTO position the draft blower will run de-
pendent on the thermostat setting upstairs. If fire has
dropped to a temperature that is below the low limit
switch the draft blower will be unable to run. For starting
from a cold fire switch the Draft Blower Lo-Limit Bypass
switch to the up or On-Bypass position. This will bypass
the low limit switch and allow the draft blower to run.
Once the fire is established switch back to OFF-AUTO
position.
The right hand switch (Draft blower manual switch) is a
simple on-off switch for the draft blower. Leave this
switch in the up or ON position for normal operation.
The only reason to switch to Off would be when refuel-
ing. It is up to the customer if you choose to turn the
draft blower Off. It is not required.
FIGURE 5 WOODCHUCK CONTROLS
COMFORT
CONTROL CENTER
DOUBLE LATCH
LOADING DOOR
SHAKER
GRATE
FORCED DRAFT
BLOWER
ASH DOOR
DRAFT
CHANNEL
SELECTOR -
80/20
COMBUSTION
MODELS
2900/4000
FAN/LIMIT
HEAT EXCHANGER
CONTROL ROD
COMFORT
CONTROL CENTER
DOUBLE LATCH
LOADING DOOR
MANUAL DRAFT
(Forced Draft Is
Optional)
ASH DOOR
SHAKER GRATE CRANK.
SHAKER GRATES ARE OPTIONAL
MODEL 526
FAN/LIMIT
FIGURE 6 COMFORT CONTROL CENTER
CIRCULATING
BLOWER
DRAFT BLOWER
LO-LIMIT BYPASS
DRAFT BLOWER
MANUAL SWITCH
