Diesel Burner Flow Chart - Aqua-Hot 200 Series Service Manual

Electric Element
Electric Heating Element
will activate, providing
heat to the antifreeze and
water heating solution
within the boiler tank
Unit heats in 1-2 hours.
NOTE:
The Burner
and/or Electric
Element (as switched
ON) will automatically
begin reheating the
antifreeze and water
heating solution when
the boiler tank drops
below 155°F.
The cooled antifreeze
is returned to the boiler
tank to be reheated.
Operational Flow Chart
A heat source is selected from
Interior Switch Panel
The antifreeze and water
heating solution in the boiler
tank heats to 190°F
An Interior Zone
Thermostat Calls
for Heat
The fl uid circulation pump
activates and begins circulating
the heated antifreeze and water
solution throughout the interior
heating zone
The heating zone
fans activate
Heat is transferred to the
vehicle interior via the heat
exchangers
©Aqua-Hot® 250 Series Diesel Service Manual
Operational Flow Chart Fluid Circulation Pump
Diesel Burner
The burner fi res, heating the
combustion chamber and
antifreeze/water heating
solution within the boiler tank.
Unit heats in 10-20 minutes.
A hot water faucet opens,
signaling a need for heat to the
boiler tank
Heat is transferred to the
domestic hot water system
Hot water fl ows from the water
faucet
p. 31