17-2
CLASS C MOTORHOME
17.2 COLD TEMPERATURE STORAGE
17.2.1 WATER SYSTEM WINTERIZATION
1. Fill the water tank and lines with potable
water anti-freeze. Do not use automotive
coolant anti-freeze, as this is toxic, and will
contaminate the water system.
2. Add antifreeze to tank then drain the fresh
water tank via the drain in the drain compart-
ment.
3. Turn off the water pump.
4. Drain the water heater using the drain/relief
valve located at the water heater.
5. Hot water tank bypass valve to the bypass
position.
6. Turn on the pump.
7. Open the hot water faucet furthest from the
pump. Do this on all faucets, hot and cold.
Do not forget the toilet and shower and
exterior shower. When red anti-freeze
appears let about a cup run down the drain,
this will winterize the trap.
8. Turn off the pump.
9. At the city water connection, open the dust
cap and press the valve inside the inlet with
a small screw driver until anit-freeze starts to
flow. This will ensure frost protection for the
inlet pipe.
Fig. 17-1 BYPASS VALVE
3. Turn on the pump.
4. Open the water faucet furthest away from the
water tank. Run the water until clear water
appears. Shut off the faucet, and do this to all
faucet, and shower head.
5. Open the hot water line until water appears.
CAUTION
NOTE: Do not turn the water heater
bypass valve to the normal position
until clear water appears at all
faucets.
Never use automotive type anit-freeze in fresh
water sytem. These are highly toxic.
WARNING
17.2.2 DE-WINTERIZE WATER
SYSTEMS
1. Fill the water tank with clean water.
2. Turn the winterization valve in the utility module
to the normal position.
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