Whitfield Profile 20 FS Installation And Operation Manual page 21

CARE AND OPERATION
CONTROL BOARD CONTINUED...
Note: The control board is equipped with an inter-
nal memory which will recall the last setting and
mode the stove was in prior to loss of power. Be-
cause we individually check each stove prior to
packaging, one of the two scenarios will appear
when you first plug in your stove.
1). The Green LED at the top of the control board will
illuminate and the blowers will be running. This is a
standard cool down mode and will last no longer
than ten minutes. This happens during testing when
the stove is turned off (which initiates cool down
mode) and then is unplugged.
2). The Green LED at the top will illuminate and the red
and yellow LED's will illuminate on the control board,
indicating that the stove is in the run mode. This
happens during testing if the stove is unplugged
without first turning the control board off (the control
board remembers its last setting, which was the run
mode).
If your stove follows that described in number 2 above,
simply press the ON / OFF button once to turn the
stove off, this will initiate the cool down mode. The
stove can be restarted at any time during the cool down
mode by pressing the ON / OFF button once.
Start-up Sequence of Events
1. Fault time delay is initiated (14 minutes 15 sec-
onds).
2. Fuel feed rate of 100% for 1 minute 50 seconds
(when trim left at factory setting of 0) auger trim set-
ting ranges from 1:26 to 2:14 depending on -4 to +4
respectively.
3. Combustion fan operation starts (medium range
voltage).
4. Convection fan operation starts (medium range
voltage).Power LED is activated (steady green).
6. Igniter operation activated (line voltage).
7. Photoeye looks for
scheme).
8. * If needed second & third fuel dumps are available
at predetermined time deliveries (4 minutes & 6
minutes after initial).
Flame Detection Sequence of Events - This is what
happens after flame has been detected.
!
Happens within the Start-up Time Delay sequence.
!
0 to 1 minute no fuel feed.
!
Flame settles.
!
Bed of embers built.
!
1 minute mark: Fuel Feed rate 20% for 4 minutes
15 seconds (1 second on / 4 seconds off).
!
2 minute mark: igniter turns OFF / convection
blower = panel setting.
!
5 minute 15 seconds mark: combustion fan = panel
setting / LED indicator still active.Start-up Time
delay ends 14 minutes 15 seconds after pushing
the start button!
flame (flame dominance
PHOTOEYE
PN LABEL
LOCATION
POWER
SELECT
HARNESS
Calibrating Fuel Feed & Combustion Voltage
Calibration is the function
of internal software and
should be done by a quali-
fied technician.
Access to perform calibra-
tion is behind the lower
door located on the face of
the control board. Use a
penknife to pop open door. Voltage access ports for all cir-
cuits are located here as well.
Calibration is the function of internal software and should
be done by a qualified technician.
Access to perform calibration is behind the lower door lo-
cated on the face of the control board. Use a penknife to
pop open door.
Voltage access ports for all circuits are located here as
well.
Fuel Feed Trim Steps:
1. Push button "once" to access fuel feed calibration
mode.
2. Identify the current calibration setting indicated by
one RED LED bar and the word "AUGER" in red be-
low heat control button.
3. Push the "HEAT" control button to adjust setting UP.
Each push raises the RED LED bar and increases
feed rate.
4. Push the "BLOWER" control button to adjust setting
DOWN. Each push will drop the RED LED bar de-
creasing feed rate.
5. Push the calibration button two more times to lock in
selected setting.
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