Holiday Navigator 2003 Owner's Manual page 165

Interior Heat Exchangers:
The heat exchangers are small radiators with 12 Volt DC blower motors.
Current consumption is approximately ½ Amp per large heat exchanger. The
small heat exchanger used in the private bath and for the holding tank bay is ¼
Amp.
Engine Preheat:
The Aqua Hot system has an engine preheat feature to aid in starting in
cold or frigid weather. Inside the Aqua Hot are an engine coolant loop and an
engine coolant pump. The Aqua Hot will heat the engine coolant and the internal
engine pump will circulate the heated coolant through the engine.
To Use the System:
• Turn the Aqua-Hot switch to the ON position.
• Turn the Engine Heat switch to the ON position. This activates the
engine pump inside the Aqua Hot. The time required to preheat
the engine varies with ambient temperature. Allow at least three
hours of engine pre-heat time.
Engine Heat Exchange System:
When traveling, the water pump on the engine circulates heated engine
coolant through the Aqua Hot. Through convection, the heat transfers to the
Aqua Hot coolant, providing hot water and interior heating. Use the Comfort
Control to operate the heat exchangers.
To Use the System:
• Turn on the Battery Cut-off switch at the entry door.
• Set the Comfort Controls to Furnace.
• Select the desired Zone and Temperature.
NOTE: All Zones must be in the same mode for the HVAC
(Heating, Ventilating, Air Conditioning) system to function
correctly. DO NOT set Furnace mode in one Zone and Cool
mode in another Zone.
To Operate the Furnace:
• Select either diesel burner or electric element operation. Select
both functions if desired.
• Turn living room and bedroom comfort controls to ON.
• Set the desired Zone using the ZONE button.
• Press the MODE button repeatedly until Furnace displays.
• Select desired temperature setting using the UP or DOWN buttons.
NOTE: The switch in the private bathroom controls the blower
motor of the heat exchanger in the private bathroom. When the
switch is on, the bathroom blower motor will cycle on and off
when Zone 2 exchanger blower cycles on or off.
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N A V I G A T O R 2 0 0 3
Appliances
080342
Furnace
050200b
4 • 1 6 5