Owner`s manual

Hydro-Hot Hydronic Heating System Shop Manual 07/03
R
Diesel-Burner
Control
Unit
Diesel-Burner
Head
Ignition
Electrodes
Photo Disc
Flame Sensor
Fuel Pump
Fuel Solenoid
Fuel
Nozzle
Control
Unit
Ignition Coil
Section 7.6,
continue
d
Section 7.6,
continue
d
Section 7: Troubleshooting
Page 30
b. Reset the Electronic Controller's Low Voltage
Reset (button) on the Electronic Controller
(this
can be accomplished by using a thin
straight
object to access the reset button
through the small hole in the faceplate).
Continue
to read the voltage level at the
Electronic
Controller's Battery Connec-
tions and then turn the Diesel switch ON.
Under
load, is the voltage level within 0.5
volts of the supply batteries voltage?
A: If YES:
See
the first "NOTE" below.
If NO:
Load-test the supply batteries,
inspect
battery wiring for damage
and/or loose connections, and
ensure that all of the Hydro-Hot's
electrical
motors are operating
normally when under load.
NOTE: If after testing and correcting the battery
system, the Low Battery Voltage Fault indicator
light continues to illuminate, and/or if the Low
Voltage Reset (button) will not reset, the
Electronic
Controller must be replaced.
Please
contact our Technical Department at 1-
800-685-4298 for assistance.
NOTE: In order to perform some of the follow-
ing procedures it may be necessary to detach
the Diesel-Burner Head from the Hydro-Hot.
Therefore, be sure to reference Section 8.2 for
de
taching and reattaching instructions.
Q2: Is the Diesel-Burner's Fuel Nozzle func-
tioning properly?
In order to determine if the Fuel Nozzle
is
functioning properly, reference Section 8.6
and
perform the Fuel Nozzle's "Component
Test".
A: If the Fuel Nozzle is not functioning
properly:
Th
e Fuel Nozzle must be replaced,
reference Section 8.6 for replace-
ment
instructions.