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• Auto Position: Air Conditioner fan runs whenever cool-
ing is required and stops whenever cooling is not re-
quired. (I.E.: Temperature set point reached)
• ON Position: The fan will run continuously. The com-
pressor will turn ON and OFF to maintain set tem-
perature.
D. Set the System Switch to cool position (located at the
left side of the thermostat). The air conditioner com-
pressor will now come on when cooling is required
and cycle off when the temperature level selected is
reached.
Wait at least two (2) minutes before restarting the air
conditioner after shutting off with either the system
switch or the temperature set lever. This allows the
refrigerant pressure in the air conditioner to equalize
and will allow the compressor to restart easily. Failure
to follow this instruction may cause circuit breakers
or fuses to open. The analog system does not have a
built in time delay.
Furnace Operation:
(If Furnace is connected to control system)
A. Set the Temperature Set Lever to desired tempera-
ture level (located on the right of thermostat).
B. Set the System Switch to furnace position (located
on the left side of thermostat). The furnace will now
come on when heat is required and cycle off when the
temperature level selected is reached.
Special Feature:
When thermostat:
A. Switch: is in the COOL, OFF or FURNACE position
and
B. Auto/On Switch: is in the ON position, the air condi-
tioner fan will run continuously at selected fan speed
to circulate the air inside the RV.
Optional Feature:
Electric Heat Strip (If Unit so Equipped)
A. Set the Temperature Set Lever (located at right of
thermostat) to desired temperature level.
B. Set the System Switch (located at left side of ther-
mostat) to heat strip position. The unit's heat strip will
now come "ON" and cycle "OFF" when the tempera-
ture level selected is reached.
C. Move the FAN Auto/On Switch
1. Auto Position: Unit fan runs whenever heat is re-
quired and stops whenever heating is not required.
2. ON Position: Unit fan runs continuously to circulate
air in RV.
The temperature rise across the heat strip should be 5° to
7° degrees. If the temperature in the coach is 50 degrees
the temperature coming out of the unit will be approxi-
mately 55° to 57°. On the hand this will feel cool and the
user may not think the unit is working.
Heat Pump Operation
Note: The outside thermostat (change-over thermostat)
will not allow the heat pump to operate when outside tem-
peratures are below 40° (+/-2) Fahrenheit.
A. Set the Temperature Set Lever (located on the right of
thermostat) to desired temperature level.
B. Set the System Switch (located at the left side of ther-
mostat) to heat pump position. The compressor will
now come on when heating is required and cycle off
when the temperature level selected is reached. If the
outside temperature is below 40° (+/-2) Fahrenheit,
the heat pump will not operate. If the RV is equipped
with a furnace the System Switch must be set to fur-
nace for operation.
Frost Prevention
Heat pumps have a tendency to frost during operation
when the outside temperature is below 50° Fahrenheit
with moderate humidity conditions. It may be necessary
to reverse the refrigerant cycle (switch to cooling mode)
to clear frost off the outside coil.
1.3 Comfort Control
This type of air conditioner controls can be ducted or have
an air distribution box with wall T-Stat. The Comfort Con-
trol Center has been designed for you to easily operate all
the air conditioning and heating appliances found in your
vehicle from one location. In order to familiarize you with
the operation of the Comfort Control Center, the following
diagram along with the accompanying text will explain all
the functional characteristics of the system.
Controls
A. Liquid Crystal Display
The Comfort Control Center is equipped with a liquid crys-
tal display (LCD) that identifies the mode of operation, the
temperature set-point, the zone identification and the fan
speed. The Comfort Control Center is designed to accept
and control many varied air conditioning and heating ap-
pliances. When you begin to first operate the Comfort
Control Center, you will see that the LCD readout will only
show the options available based on the appliances in-
stalled on the vehicle.
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