Owner`s manual

Hydro-Hot Hydronic Heating System Shop Manual 07/03
R
Ignition
Electrodes
Photo Disc
Flame Sensor
Fuel Pump
Fuel Solenoid
Fuel
Nozzle
Control
Unit
Ignition Coil
Diesel-Burner
Control
Unit
Diesel-Burner
Head
After turning the Diesel switch ON:
TS5
:
The Hydro-Hot's exhaust system pro-
duces white smoke after ignition.
Q1: 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:
The Fuel Nozzle must be replaced,
reference Section 8.6 for replacement
instructions
.
If the Fuel
Nozzle is functioning properly:
Continue Troubleshooting.
Q2:
Is the Diesel-Burner's Fuel Pump produc-
ing the proper pressure?
In order to determine if the Fuel Pump is
producing
the proper pressure, reference
Section 8.8 and perform the Fuel Pump's
"Fuel
Pressure Adjustment Check".
A: If the Fuel Pump is not producing the
correct pressure:
Adjust the fuel pressure to 145 psi.
If
the Fuel Pump is producing the correct
pressure:
Continue Troubleshooting.
NOTE: Be sure to check that the Ignition
Electrode's Retaining Clamp Bolt has not been
overtightened, reference Figure 16. Overtighten-
ing can result in a bound-up (i.e. rigid) Photo
Disc. Not allowing the Photo Disc to float freely
(i.e. a loose fit) will cause poor combustion and
result in a smoky exhaust. If a tight Photo Disc
exists, reference Section 8.5 and perform the
"Ignition
Electrode Adjustment Procedure".
Q3: Is the Diesel-Burner's Fuel Supply System
functioning properly?
Quick Check - With the Diesel-Burner
ignited,
look for constant white smoke from
the Hydro-Hot's exhaust system.
A: If constant white smoke exists:
Continue Troubleshooting.
Section 7.5 Section 7.5,
continue
d
Section 7: Troubleshooting
Page 27