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Diesel-Burner is activated by
the Burner switch.
Heating Zone Thermostat
calls for heat.
The heated antifreeze and
water heating solution flows
through the Hydronic Heating
System transferring heat to
the heat exchanger, which is
then transferred to the sur-
rounding zone.
The cooled antifreeze and water heat-
ing solution is returned to the boiler
tank to be reheated.
Heat source is selected from the
Interior Switch Panel.
The Boiler Tank heats the
antifreeze and water heat-
ing solution to 190°F.
"Engine Preheat" switch on
the Interior Switch Panel is
activated.
The engine's coolant is circu-
lated through the Aqua-Hot's
internal Engine Preheat Sys-
tem, where the heat from the
Boiler Tank is transferred to
the engine's coolant.
Aqua-Hot®
Section #: Title
Operational Flowchart
Electric Heating Element is
activated by the Electric
switch.
A hot water faucet (e.g., kitchen
sink, shower, etc.) is opened.
Continuous hot water is
supplied to the faucet.
600 Series & Care Guide
p.
10
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