Electrical Systems
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5•170
EXECUTIVE
4. Engine Heat:
The engine preheat loop is an integral
part of the Aqua-Hot heating system.
When the Aqua-Hot is at normaloper-
ating temperatures (between 175º-
195º F) and engine preheat is desired,
follow these simple procedures:
• Turn Aqua-Hot switch on.
• Turn the engine heat switch ON.
This activates the engine preheat
circulation pump. Circulating the
engine’s coolant through the
engine preheat loop will ade-
quately warm the engine to oper-
ate for easy starting.
• Allow approximately 1 to 2 hours
(longer for colder, ambient tem-
peratures) of engine preheating
run time. The pump can be oper-
ated overnight if desired.
• Turn the engine heat switch OFF,
when engine preheating is not
desired.
5. Supplemental Heat:
Aqua-Hot’s engine preheating system
acts as a supplemental heating
source, in addition to the diesel
burner and electric heating element.
While traveling, the engine’s heated
coolant will automatically pass
through engine preheat loop
transferring heat into the Aqua-Hot’s
heat tank. This feature reduces total
operating hours of the diesel heater.
6. Tag Axle:
Switch raises and lowers tag axle.
When headlight switch is off, switch
light is not illuminated. In certain
situations tag axle may require to be
in up position.
• Under five MPH. Severe maneu
vering with motorhome under
five MPH.
SHIFTER CONTROL PANELS - Hydraulic & Air
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