Winnebago Horizon User Manual page 102

SECTION 7 –
PLUMBING
RV Antifreeze Siphon Tube
in water center or near water pump
(insert into container of RV water system antifreeze)
Fill Lines
6. Turn the water pump switch on.
7. Open each hot and cold water faucet handle/
knob in the coach – one at a time each in turn
until antifreeze solution just begins to flow
from the faucet, then close.
Do not forget exterior shower/wash station
knobs (if equipped.)
8. Press the toilet flush pedal and hold until
antifreeze begins flowing into the toilet.
Leave small amount of antifreeze that remains
in the bowl.
When Done Adding RV Antifreeze
9. Turn water pump switch off.
10. Turn the Winterization Valve 2 to "Normal".
This will stop the flow from the antifreeze
siphon tube and revert the tank line flow to the
pump.
11. Replace the protective cap onto the end of the
antifreeze siphon tube to keep out insects and
debris when not in use.
Drain Water Heater
12. Turn off the Water Heater power switch
before draining the water heater tank to avoid
damage to the heating element.
• Drain the water heater by removing the plug
from the base of the water heater tank,
accessible from the outside of the coach.
(Requires socket and ratchet.)
7-16
.
Water Heater Drain Plug
Remove with socket
• Also open the Pressure-Temperature relief
valve at the top right portion of the tank to
prevent air locking in the tank while
draining.
Lift handle only when water heater is cold
• Reinstall the water heater drain plug and
close the P-T relief valve when drained.
Drain Appliances
13. At this time, if your coach is equipped with an
optional refrigerator ice maker, dishwasher, or
washer/dryer, the waterlines for these
appliances must also be drained. (See
"Winterizing Optional Appliances"
instructions at the end of this section.)
If not equipped with optional appliances,
proceed to the next step.
Close All Drain Valves
14. Close all waterline drains and tank drain
valves to avoid contamination by dirt, insects,
or rodents.