Nesco 6033 - Manual (Page 17)

USSC 17
CIRCUIT BOARD FUNCTIONS
Start-up
When the circuit board is energized (unit plugged in) there is a 15 second purging of the auger tube to allow fuel to enter the
firepot. To initiate the Start-up, turn the heat setting knob to the number 3 setting. If the unit is started on the 1 or 2
settings, the firebox temperature may not rise fast enough for the low limit censor to engage. When the heat setting knob
is turned on, the draft blower starts but the auger feed does not start feeding fuel until after 3 minutes.
Corn may require a higher setting if the moisture content is high or if the corn has a high starch content. Wood pellets may
require a higher setting if the ash content is high or if you are running the unit on the high setting. (See page 22.)
NOTE: Make sure that the wall thermostat (if used) is turned up so that the unit will start on the number 3 setting.
If the fire is not hot enough to engage the low limit sensor, (within 20 minutes) the circuit board will cycle through the shut
down mode and the unit will shut down. The green indicator light will blink rapidly to show that the unit is not operating
properly. To restart the system, simply turn the heat-setting knob to the off position and turn back on to the number 3
setting.
Once the unit is operating at the proper temperature (usually 10-15 minutes), select the heat setting that you want(3 or 4),
adjust the manual draft adjustment knob so that the fuel is approximately ½ inch thick in the bottom of the firepot.
The number 3 heat setting is best for corn and the number 4 heat setting is best for wood pellets for a high fire burn. The
high setting should only be used if the home is over 2000 square feet or the weather is extremely cold. The high heat setting
is intended for use with wood pellets and the highest heat setting for corn would be the number 4 setting.
The unit is not designed to be operated for long periods of time on the highest setting. Optimum efficiency is achieved by
using lower settings. It is also recommended that the unit not be run for extended periods of time on the number 1 setting.
The draft blower and venting will fill up with fly ash after a long period of time. Once a day pull the manual draft knob
out all the way and turn the unit up on high. Run it this way for a few minutes to clear the venting and draft
blower. It is good to run the unit on one of the higher settings at least once a week to clear the system and
eliminate the buildup of fly ash.
This unit Will Not operate properly with the firing door open. Keep door closed when the heater is in use.
Shutdown
To shut the unit down, simply turn the heat setting knob to the off position and the system will enter the shut down mode.
The fuel stirrer will continue to operate until the low limit safety censor tells it that the fire is out and the firepot has gone
through its cleaning cycle. After this time the fuel stirrer will shut off. When this happens the fuel auger will go into the
purging cycle and auger a small amount of fuel out of the auger into the firepot. Then the entire system shuts down.
DISPOSAL OF ASHES
Disposal of Ashes
Ashes should be placed in a metal container with a tight fitting lid. The closed container of ashes should be placed on a
noncombustible floor or on the ground, well away from all combustible materials, pending final disposal. If the ashes are
disposed of by burial in soil or otherwise locally dispersed, they should be retained in the closed container until all cinders
have been thoroughly cooled.