Aqua-Hot Hydronic Heating System Shop Manual 09/04
®
SECTION 5: DIESEL-BURNER
Operational
Sequence,
continued
5.3
Operational Sequence
Diesel-Burner Operation,
continued
The
Diesel-Burner
will continue to produce heat in this manner until
it is switched off either manually or by the
VDC / VAC Control
Thermostat
, which occurs when the coolant temperature in the Aqua-
Hot’s
Boiler Tank
reaches 190 (+/- 5) degrees Fahrenheit.
5
Cool Exhaust
Gases
6
NOTE:
Whenever the
Diesel-Burner
is switched off by the
VDC/VAC
Control Thermostat
, it will automatically be reactivated once the
Aqua-Hot Boiler Tank’s coolant reaches the preset temperature of
approximately 160 (+/-) 5 degrees Fahrenheit.
Once the
Diesel-Burner
has switched
OFF
, the
Motor
and
Combustion Air
Blower
will continue to operate for approximately
2-3 minutes. This process is referred to
as the
purge-cycle
.
The particular component begins to operate.
The component is currently operating.
Combustion Air
Diesel Fuel Spray
KEY
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