Winnebago 2015 Journey Operator's Manual page 106

SECTION 7 –
PLUMBING
Pressure-Temperature Relief Valve
(Lift handle only when water heater is cold)
Drain Water Heater (Tankless)
10b. Turn off the Water Heater Power switch
before draining the water heater tank to avoid
damage to the heating element.
• Open one faucet at a time using compressed
air to purge the system of all water.
• Once purged, open the Pressure Temperature
Relief Valve and leave in the open position.
Pressure-Temperature Relief Valve
(Lift handle only when water heater is cold)
11. Connect Air Pressure. After water has
stopped draining at all faucets and drain
valves, leave faucets open and connect a
"blow-out" plug to the Fresh Water Inlet (city
water connection) in the water service center.
Then use a compressed air hose regulated to
30 psi or less to force air through the system.
A blow-out plug can be purchased at any
®
Winnebago or Itasca
7-18
®
dealer.
City Water
Connection
Blow-out
Fresh Water
Inlet
NOTICE
Limit air pressure to 30 psi to avoid
damage to equipment.
NOTE: DO NOT burst air into the system. This
can damage the water pump. It is better
to let air in slowly.
12. Let air flow for five minutes until water is
completely drained out of faucets and drain
valves. Then close faucets one at a time.
13. Drain Toilet. Press and hold the toilet flush
lever (or electric wall switch, if your coach is
equipped with an electric flush toilet) until
water is completely drained from toilet.
14. Turn air pressure off. Disconnect water
purge adapters. Recap the Fresh Water Inlet to
avoid contamination by dirt or insects.
After Disconnecting Air Pressure
15. Empty the Full-Coach Water Filtration
canister of any water trapped during the Blow-
Out Procedure. Remount empty canister onto
filter assembly.
16. Close all waterline and tank drain valves and
all faucets to avoid contamination by dirt,
insects, or rodents.
NOTE: Leave the Ice Maker and Pot Filler (if
equipped) Winterization Drain valve in
the OPEN position throughout storage
period.
17. Reinstall the Water Heater drain plug and
close the P-T Relief valve.
Air Hose
Plug