Aqua-Hot (Opt.) - Holiday Navigator 2003 Owner's Manual

Appliances
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AQUA-HOT
(Optional)
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Specially designed for use in motorhomes, the Aqua-Hot is an appliance
combining a water heater with a furnace. The Aqua-Hot provides an almost
endless supply of hot water and heats the interior of the motorhome. A 50,000
BTU diesel fired burner and a 1650 watt AC element heats a 60/40 solution of
antifreeze to approximately 200º F. Using three pumps, the antifreeze solution
circulates through heat exchangers located throughout the motorhome. A fourth
pump circulates engine coolant through the Aqua-Hot. Fresh water heats when
pumped through a coil tube inside the Aqua-Hot.
CAUTION: If not properly and thoroughly rinsed, bleach or other
concentrated chlorine bearing chemicals can cause failure to the
copper tubing inside the Aqua-Hot domestic Water Loop. The rating
for the Aqua-Hot copper tubing is for fresh water and winterizing
solutions only. Periodic flushing with common household chemicals,
including bleach, has little or no effect on the heating system if
properly rinsed with fresh water afterwards. Failure of copper tubing,
especially soft or flexible copper, can result if materials other than
water or winterizing solutions are allowed to reside inside the piping
for extended periods as during storage or other periods of non-use.
The most common cause for failure is due to an extended exposure
to chlorine, solutions containing chlorine (i.e. bleach) or hydrochloric
acid.
NOTE: The Aqua-Hot must be turned ON before using any heat
feature.
Diesel Burner:
The diesel burner will consume approximately ½ gallon of
diesel for each hour of continuous burner operation. The diesel
burner is rated at 12 Volt/65 watts. Circulating pumps rated at 12 Volt/
12 watts each. The diesel-fired burner has a fast recovery rate. To
heat the Aqua-Hot from the diesel burner turn the switch to the
ON position. The switch will illuminate when the Aqua-Hot is
ON. Allow 20 to 30 minutes for the Aqua-Hot to reach operating
temperature before operating heat exchangers or using hot water.
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Electric Heat Element:
The electric element works well if plugged into 50 Amp
service. When plugging into less than 50 Amp service, exercise
care not to overload the electric service provided. The rate of
recovery of the electric element is slower than the diesel burner.
When the switch is turned on a relay closes in the 120 Volt AC
panel sending power to the electric element in the Aqua-Hot.
Allow two to three hours for the Aqua-Hot to reach operating
temperature when operating from the electric element.
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