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Overview:
The Aqua-Hot system requires minimal maintenance if
monthly, annual, and proper winterization procedures are
followed accurately. It is extremely important to follow the
instructions below precisely and carefully to receive the best
results and promote the longevity of your Aqua-Hot. Monthly
maintenance to the Aqua-Hot requires a visual check of the
antifreeze and water solution to make sure it's at the correct
operating level. Annual maintenance to the Aqua-Hot re-
quires a replacement of two parts on the diesel-burner, the
fuel nozzle and fuel filter. Winterization of an Aqua-Hot sys-
tem prepares a motor home for storage during the winter
months to prevent freezing pipes and other critical damage.
When the Aqua-Hot is at maximum operating temperature,
the coolant will be very HOT! If the Aqua-Hot's heating sys-
tem is accessed, scalding hot vapor or coolant could result.
Before cleaning or servicing, disconnect all power supplies.
Monthly:
It is extremely important to check the Aqua-Hot's anti-
freeze and water heating solution to ensure it is at the prop-
er level for operation. This task can be done by visibly check-
ing the coolant level in the Aqua-Hot's expansion tank. At
maximum operating temperature, the antifreeze and water
heating solution should be at the level marked "HOT" on the
expansion tank. The coolant level should be checked ONLY
when the Aqua-Hot is at maximum operating temperature.
Therefore, this procedure should be done immediately after
the diesel-burner cycles OFF. Reference figure below. If it
needs refilling, reference "Fluids" in the Care & Maintenance
section.
Expansion Tank
Cap
Annual:
In order to keep the Aqua-Hot running at its full potential,
it's highly recommended to have the diesel-burner tuned up
annually. This tune up consists of a new fuel nozzle (Part
Number: WPX-886-41A) and fuel filter (Part Number: FLE-
120-100). To ensure maximum diesel-burner performance,
always use the recommended fuel nozzle and fuel filter
when replacing these parts. Reference the Aqua-Hot's Ser-
vice and Parts Manual for spare parts information and de-
tailed replacement attachments.
Winterization:
When it's time to store a motor home for the winter
months or when freezing temperatures are expected, it's
crucial to properly winterize the Aqua-Hot to avoid serious
damage, requiring a complete system replacement not cov-
ered under the Aqua-Hot Limited Warranty Statement. The
process of winterization consists of completely draining the
domestic water from the system and pumping RV winteriza-
tion antifreeze through to flush out the system.
Not winterizing the Aqua-Hot when freezing temperatures
are present will result in SERIOUS damage to the Aqua-
Hot's Domestic Water Heating System. Also, be sure to use
the FDA approved, "GRAS" rated antifreeze for winteriza-
tion.
Please follow these instructions carefully when winterizing
the Aqua-Hot's hot water heating system:
1. Completely drain the fresh water storage tank.
2. Disconnect the domestic water demand pump's suction
3. Attach an adequate piece of hose onto the suction side
Fluid will reach
4. Place the opposite end of the hose into an adequate
Expansion Tank
line when HOT
5. Open and close all interior and exterior water faucets,
6. Remove the hose from the RV antifreeze and reconnect
Aqua-Hot®
Care & Maintenance
line from the fresh water storage tank.
of the domestic water pump.
supply of the RV antifreeze, "GRAS" by the FDA and al-
low this to pump through the system.
one at a time, until ONLY pure RV antifreeze is present.
Perform this procedure for both hot and cold faucets.
the domestic water demand pump's suction line to the
fresh water storage tank.
600 Series & Care Guide
Section #: Title
p.
13
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