Winnebago Sunova Operator's Manual page 90

SECTION 7 –
PLUMBING
antifreeze. See the "Water System Drain Valve
Locations" chart at the end of this section for the
location on your model.
Leave the Water Heater Bypass valve handle
in NORMAL FLOW position if draining water
and blowing out waterlines. Place in BYPASS
position ONLY when using antifreeze in
waterlines.
WARNING
Never use automotive antifreeze/coolant
in your RV water system. Auto antifreeze
contains ethylene glycol which, if
ingested, can cause blindness and can
be fatal.
Remove Water Filters (if equipped)
1. Remove the Ice Maker Water Filter
Cartridge (if equipped). Remove the ice
maker filter cartridge from the filter assembly
below the galley sink.
(If your coach is not equipped with an ice
maker, proceed to the next numbered step).
Ice Maker Water Filter Assembly
(Located below galley sink)
• Twist the filter cartridge "counter-
clockwise" about a quarter-turn and pull it
down and out of the filter socket.
NOTE: The water filter head has a built-in
bypass. No separate diverter plug is
needed.
7-14
Set Up Winterization Valves
2. Turn the Water Heater Bypass valve to
BYPASS position.
3. Remove and save the protective cap from the
end of the antifreeze siphon tube.
4. Insert the end of the antifreeze siphon tube
into a pail or other container with 2 to 3
gallons of non-toxic RV antifreeze solution.
5. Turn the Winterization valve so that it points
toward the antifreeze siphon tube.
Antifreeze Siphon Tube and
Winterization Valve
-Typical View
(See the "Water System Drain Valve
Locations" chart at the end of this
section for location on your model)
NOTE: Ensure that all drain valves are
CLOSED before pumping RV antifreeze
into the water system.
Refer to the "Water System Drain Valve
Locations" chart at the end of this
section for valve locations on your
model.
Fill Lines
6. Turn the Water Pump switch on.
7. Open each hot and cold water faucet handle in
the coach - one at a time, until antifreeze
solution just begins to flow from the faucet,
Antifreeze
Siphon Tube
• Insert into
container of
RV water
system
antifreeze
Winterization
Valve
• Point toward
antifreeze
siphon tube
for winterizing