Winterizing Optional Appliances - Winnebago SunCruiser User Manual

SECTION 7 –
PLUMBING
• 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).
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.
Pressure-Temperature Relief Valve
(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
12. 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 numbered step.
7-16
Close All Drain Valves
13. Close all waterline drains and tank drain
valves to avoid contamination by dirt, insects,
or rodents.
14. Pour about one cup of RV antifreeze down
each drain for the galley sink, lavatory sink,
and shower/tub. This fills the drain trap pipes
to prevent holding tank odors from entering
the coach during storage.
Dump and Clean Holding Tanks
15. Completely drain the sewage and waste water
holding tanks at an approved waste disposal
site. Drain the sewage tank first so the
following waste water can rinse any waste
solids from the dump outlet and sewer hose.
16. Flush the sewage tank using the Black Waste
Tank Flush Inlet (if equipped).
17. Close dump valves and refit the dust cap onto
the drain outlet.
This will inhibit rust formation on valve shafts
and prevent entry and contamination by
airborne debris, insects, and rodents.
Your drainage and fresh water systems are now
totally winterized.
See instructions for removal from storage in
Section 11 - Maintenance and Storage.
WINTERIZING OPTIONAL
APPLIANCES
Winterizing Ice Maker
–If Equipped
®
Norcold Refrigerator
1. Drain coach waterlines.
2. Unscrew the water supply line from the
bottom of the water inlet valve and drain any
water left in the line. This connection is
located in the refrigerator service access
compartment on the outside of the coach (see
"Refrigerator Service Access Compartment"
in Section 4 - Appliances and Systems).