6-13
SECTION 6
APPLIANCES & EQUIPMENT
6 - AP
PLIANCES &
EQUIPME
NT
MOTOR AID WATER HEATER
The motor aid uses heat from the chassis en-
gine cooling system to heat water in the water
heater while driving. Hoses are routed from the
engine to a heat exchanger surrounding the water
heater tank.
Under normal conditions, the entire contents
of the water heater can be heated to about 120
°
F
in about two hours or 100 miles of driving. This
means you can have hot water at the faucets im-
mediately upon arriving at a site, or even while
driving if needed.
The motor aid also increases the capacity of
the engine cooling system, allowing the engine to
run cooler under many conditions.
POWER ROOF VENT - Galley Area
The power roof vent in the galley ceiling has
a 3-speed turbine fan.
The fan shroud on the ceiling has a fan power
switch that lets you turn the fan off if you want
just the vent dome raised with no fan running.
The fan speed switch allows you to adjust the
amount of circulation you need at any time.
CRANK-OUT WINDOWS
Turn the crank-out knob clockwise to open
window; counterclockwise to close. Do not use
excessive force on the knob to open or lock into
closed position. This could cause permanent
damage to the crank mechanism.
Leave by-pass valve handle in NOR-
MAL FLOW position if draining
water and blowing out water lines.
Place in BYPASS position ONLY
when using antifreeze solution in
water lines.
Water Heater By-Pass Valve
(Typical)
CAUTION
Any leak in the heat exchanger or its
supply or return lines could cause loss
of coolant and subsequent engine fail-
ure. We recommend that you periodi-
cally inspect these connecting lines
and the heater to insure that no leaks
have developed.
CAUTION
Fan On/Off
Switch
Fuse
Fan Speed
Selector
Manual
Dome Crank
Power Ventilator
