Esp Control - Harman Stove Company XXV Installation & Operating Manual

Mode Selector
Allows you to choose between Room Temp Mode,
Stove Temp Mode, or OFF. Also allows you to vary
the distribution blower speed by turning the knob to
the high or low side of each mode.
Distribution Blower speed
adjustment range.
L = low
H = high
Variable speed anywhere
between L and H; although
as the stove temp. goes
up, so does the L and H
scale.
Igniter switch
Set to appropriate Start-
Up mode.
Test
Runs all motors at full
speed for one minute to
check operation. After
a minute, the control
will simulate a minimum
burn and the combustion
blower will remain on low.
Feed adjuster
Sets the maximum feed
rate
Status light error messages:
3 blinks: Indicates that the ESP (Exhaust Sensing Probe)
has gone out of range too many times. If the unit seems to
be operating correctly, perform a manual reset*.
4 blinks: Can occur only in Room Temp Mode and
indicates Room Sensing Probe failed or not installed. If a
Room Sensing Probe is then installed, the status light will
automatically reset.
NOTE: Unit will not start in "AUTO" with this status error.
5 Blinks (In Igniter Auto. Mode Only): Indicates that the unit
has failed to light within the 36 minute start cycle. To reset -
Turn Mode Selector to "OFF", then turn to either mode again.)
16
XXV Pellet Stove

eSP control

Dealer Diagnostic Port
For dealer maintenance only. Requires
special DDM monitor supplied to Harman®
Dealers exclusively.
6 blinks : Indicates that the control has calculated poor or

incomplete combustion occurring for more than 25 minutes.
A six blink status may be set if the stove is allowed to run out
of pellets. To reset, turn mode selector to "OFF" then back
on to the desired mode. If the unit was not out of pellets, see
Troubleshooting section, Page 29, for more details.
* Manual reset- disconnect power cord for a few seconds
and reconnect. If error still occurs call your Dealer.
Temp dial
Allows you to adjust the
room t em per at ur e i n
Room Temp Mode using
the outer scale marked
in degrees Fahrenheit. It
also allows you to adjust
the stove temperature
while in Stove Temp Mode
using the inner scale
marked from 1 to 7.
Indicates igniter is on.
Indicates power to the
feed motor.
I n d i c a t e s p o w e r t o
combustion blower
I n d i c a t e s p o w e r t o
distribution blower.
Status Light
Will be lit in either stove
or room temp mode when
pointer is not within off
position band except after
normal shut down. Blinks
to indicate errors listed
below.
Power Light
Indicates power to the
control.
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