139
Discovery, Discovery LXE, Pace Arrow, and Pace Arrow LXE
Winterization
The toilet must be winterized
to avoid freeze damage. Press
both buttons until water is purged
from macerator pump. Add 3 pints
antifreeze to bowl then press then
ush to ensure macerator and
discharge line is winterized.
DRAIN TRAPS & AUTO VENTS
Sinks, shower and clothes
washer (if equipped) drains
incorporate a water trap (P-Trap)
and auto vents to prevent odor
from the waste water holding tank
from entering the motorhome.
Drain Traps:
P-Traps are usually within 54" of
a vent tee and must contain water
to block odors. During storage
water can evaporate and allow
odor into motorhome. If odor is
detected, run water into sinks,
shower and clothes washer (if
equipped) to ll P-Traps.
Auto Vents:
The auto(matic) vent is designed
to assist in the smooth ow
of water in the drain without
creating a vacuum. If stuck in
the open position the auto vent
can allow odors from the waste
water holding tank to enter the
motorhome. Some auto vents can
double as “clean outs” in the event
the line needs to be snaked out.
COLD WEATHER CONDITIONS
Extended use in below freezing
(32° F./0° C.) weather will require
operation of the furnace to protect
interior water lines, xtures, water
storage tanks and pumps. Exposed
drains may freeze quickly. If in
doubt about what temperature the
motorhome will tolerate, winterize
with potable antifreeze. Cold
temperature can adversely affect
water systems below the oor
level because the furnace does not
provide heat to these components.
Water Center Heater
A small Aqua Hot heat
exchanger is located in the water
service center to help prevent
freezing in the water service
center. The Aqua Hot supplies
coolant to the heater and must be
turned on to supply heated coolant
to the exchanger. Turn on the Aqua
Hot when freezing temperatures
may occur.
System Operation:
1. Turn on the Aqua Hot.
2. Set thermostat to Gas in
Zone 4.
3. Adjust Aqua-Hot bay
thermostat, located
in water center, to
approximately 40º F.
As temperature reaches
approximately 40º F., the blower
on the heat exchanger will run to
help prevent water center freeze-
up.
CAUTION:
While the water center
is equipped with a heat
exchanger, it will not
prevent freeze-up in
extreme cold.
Typical heat
040646ca
Aqua-Hot thermostat located
next to water pump in water
service bay
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