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©Aqua-Hot®
600D and 675D Use and Care Guide
Operating the Aqua-Hot
Heating System Operation
Overview:
The heating features are powered by a 12V DC diesel
burner, and two AC electric elements. These elements, in com-
bination with the diesel burner heat the anti-freeze and water
heating solution within the Aqua-Hot to provide steady, contin-
uous heat and hot water.
•
Diesel
The diesel burner is the primary, and most powerful
heating source within the Aqua-Hot. The diesel burner
can meet all demands for heat and hot water that the
coach may require. It can be activated by simple mov-
ing the “BURNER” switch on the interior switch panel
to the “ON” position.
•
Electric
The electric elements are intended as a
secondary
heat source within the Aqua-Hot, and can provide
light-duty hot water and interior heat in mild condi-
tions. The electric elements can be activated by mov-
ing the “ELECTRIC” switch, located on the interior
switch panel to the “ON” position.
•
Engine Preheat
In order to use the Engine Preheat element of the
Aqua-Hot system, both the diesel burner AND the en-
gine preheat switch, located on the interior switch
panel, must be in the “ON” position. Allow the engine
preheat element to function for one hour before start-
ing the vehicle’s engine.
Controlling Heat Levels:
The interior room thermostat can be adjusted to the
desired temperature, and the Aqua-Hot will be auto-
matically activated and de-activated as needed to
maintain the set interior temperature. Keep in mind
that in some conditions, the “BURNER” and
“ELECTRIC” switches must both be in the “ON” posi
-
tion to provide enough heat to maintain interior tem-
perature.
Controlling and Balancing Heating Zones
Set the interior room thermostat for each independ-
ent heating zone at the desired temperature. This
feature allows you to customize various temperatures
on each heating zone throughout your coach.
Using the Water Heating System
General Information:
The Aqua-Hot system is known as an on-demand hot
water heating system because hot water is not stored within
the coach. Instead, when the burner and/or electric elements
are activated the Aqua-Hot is heated to operating tempera-
ture. Once the Aqua-Hot reaches operating temperature, do-
mestic water is heated as it is supplied to the faucets. There-
fore, simply open a hot water faucet within the coach once the
system is up to operating temperature, and a continuous sup-
ply of hot water will be available within a few seconds.
Operation Instructions:
To operate the electric heating elements, or the diesel
burner, simply move the “BURNER,” and “ELECTRIC” switches
to the “ON” position. This action will activate the correspond-
ing devices within the Aqua-Hot to begin heating the unit to
operating temperature. Please note that the electric element
retains “HIGH” and “LOW” functionality, and this will impact
the performance of the electric elements accordingly.
NOTE: The coach must be operating on shore power, or the
generator must be active in order to utilize the electric ele-
ment functionality of the Aqua-Hot.
