Ashby-P Insert
30
Control Board Features
The Control Board controls all functions of
the Ashby-P by monitoring sensors that are
in the system. These sensors serve 2
purposes.
a.
General Operation of the Insert.
b.
Safety Features, to shut the unit
down in the event the sensors detect
a problem in the unit.
The Control Board also has Diagnostic
Capabilities to help in diagnosing 3 areas in
the Insert. These areas are:
1.
High Temperature Limit.
2.
Proof of Fire Sensor
3.
Vacuum in the Firebox
A closer look at the Control Board to the
right in figure 18 will explain how the board
works. There are essentially 4 buttons on the
control board. Two of these buttons, the
Heat Level
and
Trim
Buttons, have a
High/Low side to advance these settings up
or down. There is a
Slide Switch
that
controls the Thermostat Mode and an
LED
Light
bar that indicates which of the 5 Heat
Settings the Ashby-P is running on.
Figure 18
The LED Light bar is also used
during the Diagnostic process, see
page 34 for more details
.
1. The On/Off button not only turns the Ashby-P On and Off,
it also resets the board if
one of the sensors has detected a problem and the board is flashing a Diagnostic code
.
2. The Auger Feed button will allow the user to manually auger fuel into the burn pot on
start up when needed. This is particularly helpful in priming the Auger Tube when it is
empty (After the hopper has run out of pellets). This button is also used to make small
adjustments to the combustion air and the feed rates as part of the
Fine Tuning
process
of the control board.