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MOTORHOME MAINTENANCE UNITY MOTORHOME
protect the holding tanks from freezing. Be sure to
add a sufcient amount of non-toxic RV antifreeze to
protect the total volume of the holding tanks.
Do NOT use alcohol-based antifreeze or other
petroleum products.
WARNING
WATER SYSTEM WINTERIZATION
ADDING PLUMBING NON-TOXIC
ANTIFREEZE
NOTE: Remove the water lter from the cannister
before this procedure is performed�
1� Switch off the water pump inside and disconnect
the water hose at city water outside�
2� Switch off the water heater inside the motorhome
(above the entrance door) (if equipped); if not,
then switch off outside at the water heater�
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 oor 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� Close valves
A
,
B
and
E
�
A
E
B
D
C
14� For Unity U24TB and U24IB models only: With
the termination valves closed, run the macerator
(if equipped) for 10 seconds or until the pump is
completely empty�
SPRING STARTUP
After storing the motorhome for an extended period
of time, run the water pump to pressurize the water
system and check for leaks. Visually inspect the
water system for 15 minutes to ensure there are no
leaks.
Clean all your appliances and have the LP Gas
line purged by a qualied service center. Ensure
everything in the motorhome is working correctly.
Refer to the chassis manual in the Motorhome
Information Kit for any chassis maintenance
recommendations�
COLD TEMPERATURE OPERATION
The plumbing system in this motorhome is not
designed for cold weather use. Temperatures at or
below freezing will cause damage to the plumbing
system�
CHASSIS
Check engine coolant level and add antifreeze,
if required, to protect against lowest expected
temperature� Change engine oil to the recommended
viscosity to aid cold weather starting. Refer to the
chassis manual in the Motorhome Information Kit for
further recommendations�
LP GAS
Use propane for winter travelling because it
will vaporize in extremely cold temperatures
-40 °F (-40 °C). Butane is not recommended due to
its high vaporization temperature 32 °F (0 °C). Using
butane in cold temperatures may block the system
and cause components to malfunction�
WASTE SYSTEM
Prevent winter freeze-up by adding regular non-toxic
RV antifreeze into the toilet and kitchen drains to
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