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CARE AND MAINTENANCE
When to Winterize a Coach
Although great care has been taken to build a well-
insulated unit, recreational vehicles are not intended for
extended use in sub-freezing weather without special
precautions. When the outside temperature drops below
freezing, the furnace must be turned on to keep the
coach warm. Continued use in cold weather will require
the coach to be winterized.
It is critical to winterize the plumbing in your coach when
storing it in temperatures below freezing or using it in
extremely cold conditions. If subjected to these conditions
without being properly winterized, the heating system
may be unable to keep the coach and its compartments
above freezing temperatures.
IMPORTANT
!
A regulated compressed air supply is needed to
properly complete this procedure. The pressure
should be regulated between 40 and 60 PSI (pounds
per square inch). Higher pressures may cause
damage.
WARNING
!
Winterizing is the responsibility of the consumer.
Make sure you have protected the complete
water system any time your coach is in freezing
temperatures. Failure to complete the winterization
process may result in extensive damage to the water
system, appliances, and coach.
How to Winterize a Coach
1. Drain the black and grey tanks. If equipped, also
empty the macerator hose.
2. Drain the Fresh Water Tank. Open the tank drain valve
located in the driver side water bay.
3. Turn off the switch(es) to the water heater or the
hydronic heating system, including the burner and
the 120 Volt element, depending on your coach’s
equipment.
4. Turn on the refrigerator.
5. While the tank is draining, remove all of the water
filters. Install a bypass or the filter canister, including
the whole house, refrigerator, and drink water filters
(whether standard or UV), if your coach is equipped.
3 Bypass Valve System
IMPORTANT
!
The 120 Volt water heater element must be turned off
by flipping the switch near the water heater’s drain
plug.
For units with a tankless water heater, do NOT put
the water heater in by-pass mode. Instead, blow
it out, and install the antifreeze as directed for a
hydronic heater.
NOTICE
!
6. For units with a tank-style water heater instead of a
hydronic heater, close the valves to the water heater,
and open the bypass valve, which is normally located
at the back side of the water heater. Depending on
your particular floor plan, access to the back of the
water heater may be located in a cabinet, the closet,
or in an exterior compartment.
2 Bypass Valve System
7. Remove the drain plug at the bottom of the water
heater tank on the exterior of the coach.
8. Open the low point drains by turning the valve to the
“open” position or by pulling up on the handle if the
coach is equipped with T-Handle valves. There should
be one drain for hot and one for cold, and they are
normally located in the water compartment.
9. Connect the regulated air supply to the inlet of the
hose from the hose reel (if equipped) or the city water
fill inlet using a blowout plug. Air will flow out of the
low point drains.
10. Cycle all faucets and the auto fill or tank fill valve
(whichever the coach is equipped with) to all possible
positions for a minimum of 10 seconds at each
position. Do not forget the hot water spigot with low
point drain next to the generator (if equipped).
11. Cycle the tank fill valve to all positions in order to
purge water out of the lines and valve assembly.
Summary of Contents for LONDONAIRE 2022
Page 1: ...SM 2022...
