Water System Winterization; Draining The Water System; Adding Plumbing Anti-Freeze - Leisure Unity 2020 Owner's Manual

MOTORHOME MAINTENANCE
WATER SYSTEM
WINTERIZATION

DRAINING THE WATER SYSTEM

NOTE: Remove the water filter from the cannister before
this procedure is performed.
1. Switch off the water pump and disconnect the water
hose at city water outside.
2. Switch off the water heater inside the motorhome
(above the entrance door).
3. Switch off LP Gas in the outside utility compartment.
4. Drain the fresh water tank (U24MB and U24FX fresh
water tanks are below the floor outside the coach
and U24TB, U24CB, and U24IB fresh water tanks
are under the bed inside the coach.) You may want
to leave the water tank valve open for winter storage.
5. Relieve the water pressure by opening the hot and
cold taps on any faucet.
6. If heater is still hot, be sure to allow the water to
cool before proceeding.
ᘐ WARNING
If the water heater contents are still hot, serious
burns and scalding may occur
7. Drain the water heater (avoid the risk of being
scalded.) Outside at the yellow easy drain lever, lift
the black clip and fold down the yellow easy drain
lever. Remove the water inlet filter and store in a
warm dry place. Close the yellow easy drain lever.
ᘐ CAUTION
Failure to drain the water heater reservoir may
cause damage to the water heater.
134
D
C
8. Close valves ,
A B
ᘐ CAUTION
Ensure no air pressure or winterization fluid
enters the water heater as part of this process.
9. Valve should remain closed at this point.
D
10. Open valve .
C
11. Remove the water filter canister (stored under the
sink), remove the filter cartridge from the canister
and reinstall the water filter canister (make sure it is
tight.) Store the filter cartridge in a warm dry place.
12. At this point, you can continue the winterizing
process by either adding plumbing anti-freeze to
the system, or blowing out the airlines. See below
for the process on each.

ADDING PLUMBING ANTI-FREEZE

1. Place the suction hose attached to the winterize
valve in the utility compartment into a non-toxic
plumbing antifreeze container and turn the valve to
the winterize position (making sure the city water/
tank fill valve is in the city water position) in order
not to get antifreeze into fresh water tank.
2. Switch on the water pump inside (above entrance
door) and pump antifreeze through all hot and cold
faucets one at a time (including toilet flush with the
rinse hose (if equipped)) and outside shower until
pink antifreeze appears.
3. Go inside and switch off the water pump. You can
now open valve
D
drain and relieve the pressure in the water lines.
Access the water pump inside the coach, unscrew
the filter bowl to access the screen, remove the
screen and clean the screen and filter bowl with
UNITY MOTORHOME
E
B
and .
E
at the water heater inside to
A