SECTION 2: OPERATING INSTRUCTIONS
The combustion process will
continue to operate in this
manner until one of the following
take’s place:
A.) The VDC / VAC Control
Thermostat, which senses
coolant temperature, reaches the
preset temperature of
approximately 190 (+/- 5)
degrees fahrenheit
.
NOTE:
If process "A" occurs, the
Heating Status and Diesel-
Burner Status lights on the
Electronic Controller will go
OFF, reference Figure 5.
B.) The Hydro-Hot’s Diesel
switch is turned OFF.
NOTE:
If process "B" occurs, the Diesel
switch’s Indicator Light, on the
Switch Panel (reference Figure
2), will go OFF along with the
Heating Status and Diesel-
Burner Status lights on the
Electronic Controller, reference
Figure 5.
SUMMARY:
The Hydro-Hot’s Diesel-
Burner is in stand-by
mode anytime the operator
activates the Diesel switch
(reference Figure 2) to the
ON position. The Diesel-
Burner will then
automatically ignite and
maintain the coolant
temperature in the Hydro-
Hot’s Boiler Tank without
additional involvement
from the operator.
1.) The Motor (#2) will
shut-off once the three (3)
minute purge-cycle has
expired.
-THEN-
2.) The Hydro-Hot’s
Diesel-Burner will
automatically turn back ON
once the coolant
temperature reaches the
preset temperature of
approximately 160 (+/- 5)
degrees fahrenheit.
The Motor (#2) will
continue to run for
approximately three (3)
additional minutes. This
process is refered to as
the purge-cycle, which
cools down the heater’s
internal components
and purges the
Combustion Chamber
(#11) of any residual
exhaust gases.
Once the heater switches
OFF, thermostatically or
manually, the Fuel
Solenoid (#6) closes,
which interrupts the supply
of diesel fuel to the Fuel
Nozzle (#9).
NOTE:
When the Hydro-Hot’s
Diesel-Burner is switched
OFF, by the VDC / VAC
Control Thermostat, the
following process will take
place:
2.6 Diesel-Burner Operational Flow-Chart, continued
Diesel-
Burner
Operational
Flow-Chart,
continued
Important
Information
2.7 Precautions
WARNINGS:
• The Hydro-Hot's Exhaust is HOT!
• DO NOT park in areas where dry conditions exist underneath the
vehicle, as a fire may result (i.e. in a dry grassy field for example).
• DO NOT operate the Hydro-Hot’s Diesel-Fired Burner inside an
enclosed building.
•The Heater should be switched OFF when refueling.
CAUTION: DO NOT operate the Diesel-Burner and/or the Electric
Heating Element without the water and antifreeze solution in the Hydro-
Hot’s Boiler Tank. Failure to do so will cause serious damage to the
Heater.
