4-9
SECTION 4 –
APPLIANCES AND SYSTEMS
MOTORAID WATER HEATER
–If Equipped
The Motoraid uses heat from the chassis
engine 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 in about two
hours or 100 miles of driving. This means you
can have hot water at the faucets immediately
upon arriving at a site.
The Motoraid also increases the capacity of
the engine cooling system.
WATER HEATER – GAS
TANKLESS
–If Equipped
The Gas Water Heater operates from propane
gas.
See the Water Heater manufacturer’s
operation manual provided in your InfoCase for
complete operating instructions, safety
warnings, and maintenance information before
operating the Water Heater.
1. Pressurize the water system by turning on
pump or city water pressure.
2. Purge all air from the system by turning on the
faucets until a steady stream of water flows.
3. Press the Water Heater LP switch “ON”. The
water heater will remain dormant until a water
faucet is opened and the heater senses water
flow.
4. Turn on a hot water faucet to fully open. The
heater will fire up within several seconds and
hot water will flow from the faucet.
5. Set the Gas Modulating Valve to the
appropriate setting. It is recommended to set
the valve in the MIN position when the
incoming water temperatures are relatively
warm.
NOTICE
Any leak in the heat exchanger or its
supply or return lines could cause loss of
coolant and subsequent engine failure.
We recommend that you periodically
inspect these connecting lines and the
heater to insure that no leaks have
developed.
Propane Gas Water Heater Switch
(Located on OnePlace
®
monitor panel)
Modulating Valve
• Turn “clockwise” to decrease hot water
temperature.
• Turn “counter-clockwise” to increase the
temperature.
NOTE: Do not force the valve adjustment
beyond the MAX and MIN points.
