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7-17
SECTION 7 –
PLUMBING
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.
Fill Drainage System P-Traps
13. 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
14. 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.
15. Flush the sewage tank using the Black Waste
Tank Flush Inlet (if equipped).
16. 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 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
).
3. Let the Ice Maker run through a cycle, then
raise the wire shut-off arm to the OFF
position.
4. Ensure water has drained from the Ice Maker
supply line, then reconnect to inlet valve.
5. Ice Maker is now winterized.
To use Ice Maker again after seasonal storage:
1. Flush antifreeze from the waterlines (if
antifreeze fill winterization procedure was
performed).
2. Close all drain valves.
3. Turn the water supply ON.
4. Ensure the ice bin is in place and the wire shut-
off arm is lowered to the ON position.
5. Let the refrigerator cool down to ice making
temperature. Remember, this can take up to 24
hours.
6. Let the Ice Maker cycle and dump the first
batch of ice.
Winterizing Washer/Dryer
(Stackable)
–If Equipped
Method 1 – Drain Water
If you have decided to completely drain the
coach waterlines, follow these steps to winterize
your Washer/Dryer:
1. With the Washer/Dryer power OFF, pour 1/2
quart of RV-type antifreeze into the Washer
drum.
Ice Maker Water Supply Connection
(Located in refrigerator service access
compartment on outside of coach)
-Typical View