Air Conditioner - Jayco Legacy Fifth Wheel 2010 Owner's Manual

SECTION 8
CAMPING & OPERATING
•
12 Volts DC operate the Comfort Control
box. If the thermostat fails to operate,
check the fuse, which is generally located
on the interior fuse panel.
A C
IR ONDITIONER
Your RV has a roof mounted air conditioning
(A/C) system that
controlled. Cooled air enters the RV through
the adjustable "chill grill." Make sure you have
sufficient power available before operating the
air conditioner. To help keep your RV cool,
start using the air conditioner system to cool
the interior early in the day, close your
window treatments to reduce glare and keep
trips in and out of the entry door to a
minimum.
Fig. 8.28 Typical roof air conditioners
During high humidity weather set the air
conditioning system to High instead of Auto.
This will help to move more air over the coils
and reduce moisture build up. Slightly open a
window or ceiling vent to help cycle the air.
Low voltage
Low voltage will affect your A/C operation.
When the shore power supply is limited, other
appliances in the RV are competing with the
air conditioner system for amperage or the
power supply at a campground has maxed
out, then it may be necessary to run the
generator (if so equipped) for maximum A/C
efficiency. If the roof A/C fails to operate,
check the circuit breakers. The master battery
84
is thermostatically
switch must also be ON for the roof A/C to
operate.
Heat pump
The optional 15,000 BTU air conditioner,
located in the living area, comes with a heat
pump. When outside temperatures drop
below 35 degrees,
automatically turns off and switches to the
gas furnace, giving you uninterrupted comfort.
A/C prep
If your RV was ordered with this feature the
wiring is installed to add a second roof A/C,
usually located in the bedroom area. There
will be a sticker or other location indicator on
the ceiling area showing the general location
of the wiring. If you have any questions,
please consult your dealer. Damage caused
by aftermarket parts or installation is not
warrantable.
Maintenance
•
Regularly inspect the exterior roof shroud
for bird nests or other debris that may
restrict proper ventilation. Road vibration
can cause the roof shroud to loosen. The
four mounting screws located at the roof
shroud should be checked and tightened
snugly at least twice each year.
Fig. 8.29 Typical Chill Grill filter access
•
Inside the ceiling mount is a removable
filter that must be washed every two
weeks while the RV is in use. Operating
the roof A/C with a clogged filter reduces
the flow of air across the cooling coils.
Operating the system without the filter
allows the lint and dirt that is normally
stopped by the filter to accumulate on the
cooling coil and can cause the system to
freeze up. This also will lead to a loss of
air volume, possible equipment damage
and an expensive cleaning process.
the heat pump