SECTION 7
HEATING & AIR CONDITIONING
7-2
Digital Thermostat Display
The digital display normally shows current
room temperature, with the word “ROOM” in
small letters at the left side of the display. When
you press the temperature selector button up or
down, the display will show the word “SET” and
the new temperature setpoint until you release
the button.
Change Temperature
To set the temperature to a new temperature,
simply press the Temperature Selector button up
or down until the temperature you want appears
in the display. The word “SET” will also appear
at the left side of the display while you are
changing the temperature setpoint. A few sec-
onds after you release the temperature selector
button, the display will return to showing the
current room temperature.
Cooling (A/C):
•
Slide the thermostat switch to Cool position.
•
Slide the Fan Mode and Fan Speed Switches
to the desired positions.
On/Low:
A/C compressor cycles on and off
with the thermostat while fan runs continu-
ously at low speed.
On/High:
A/C compressor cycles on and off
with the thermostat while fan runs continu-
ously at high speed.
Auto/Low:
Fan runs at low speed and cycles
on and off with the A/C compressor as con-
trolled by the thermostat.
Auto/High:
Fan runs at high speed and
cycles on and off with the A/C compressor as
controlled by the thermostat.
•
Adjust the temperature setpoint to personal
preference if needed. See “Changing Tem-
perature Setpoints”.
To Run Fan Only (No Heat or Air)
•
Set Thermostat switch to OFF.
•
Slide Fan Mode switch to On.
•
Place Fan Speed switch to Lo or Hi as
desired
•
The fan will run continuously at the selected
speed and is not controlled by thermostat set-
ting. The display will show current room
temperature.
HEAT PUMP
Your coach is equipped with an air source heat
pump built into the central air conditioning sys-
tem. Because the heat pump operates on electric-
ity, it provides economical heat inside your coach
and helps reduce the use of LP gas for heating in
cooler weather.
A heat pump can be thought of as an air con-
ditioner running in reverse. An air conditioner
absorbs heat from the air inside of the coach and
moves it to the outside. The heat pump does
exactly the opposite. Even cold air contains some
heat, so a heat pump will extract heat from the
outside air on a cold day and carry it to the inside
of the coach to maintain a comfortable tempera-
ture.
The efficiency of a heat pump decreases as the
outdoor air temperature drops, so supplementary
heat is often needed when the outside tempera-
ture nears freezing. This system is set to automat-
ically start the LP gas furnace to assist the heat
pump if room temperature cools to 5 degrees F or
more below the thermostat setpoint. You may
wish to manually switch to furnace heat to main-
tain a higher temperature when outside tempera-
tures begin to reduce the efficiency of the heat
pump. The heat pump will not operate when the
outside temperature falls below 36 degrees F.
To Operate the Heat Pump:
•
Slide the thermostat switch to electric heat
mode.
•
If the inside temperature is 5 degrees or more
below the thermostat set point, both the heat
pump and the furnace will run initially to
bring the interior temperature up to the set
point as quickly as possible. (If the inside
temperature is 4 degrees or less below the set
point, then only the heat pump will run ini-
tially.)
•
When the thermostat calls for heat again,
only the heat pump will run. The heat pump
will remain the sole heat source unless it
cannot maintain the inside temperature. If
the inside temperature falls five degrees
below the set point, the furnace will assist
the heat pump until the set point is reached.
