Carrier Comfort series User manual

Homeowner _s
Guide
SERIES

INTELLIGENT, EASY TO USE
Congratulations on your purchase of a new Carrier
thermostat. Your new thermostat combines computer-
like intelligence with extremely simple operation in an
elegant package. Designed to maximize performance,
your Carrier thermostat provides reliable accurate tem-
perature control while blending into any home's decor. As
you read on, you'll quickly see how easy it is to set up
and operate your new thermostat and enjoy the comfort
of your home.
COMFORT AT YOUR COMMAND
Carrier has met the needs of homeowners nationwide
with their non-programmable thermostat. Controlling your
heating and cooling system at the touch of a button, this
powerful device helps deliver comfort year round.
MAKING LIFE EASIER
Take a few minutes to review the features and functions
listed at the right. Carrier gives you control over your
comfort with simple instructions, responsive push buttons
and an easy-to-read backlit display. Once set, this
thermostat reliably monitors indoor temperature and
responsively meets your comfort demands.
Up and Down
Buttons increase or
decrease the desired
temperature setting.
LOW BATTERY
Indicator will
light when
batteries (if
installed) need
to be replaced.
Outdoor
Temperature
Display is an
optional feature
that shows the
outdoor temper-
ature on the
LCD readout.
Indicator lets you
know it is time to
clean or replace your
system's air filter,
Room Temperature
Display shows current
room temperature.
COOL ON Indicator is
displayed when the
cooling equipment is
operating.
HEAT ON Indicator
is displayed when the
heating equipment is
operating.
MODE Button
selects between OFF,
HEAT, COOL, AUTO, and
OFF operation. Heat
pump thermostat models
also include an EMER-
GENCY HEAT mode.
AUXILIARY HEAT
Indicator is dis-
played when a
heat pump sys-
tem is operating
with auxiliary heat
air filter,
FAN Button
chooses
between CON-
TINUOUS FAN
and AUTO FAN
operation.
/
/
RESET FILTER
Button restarts
the timer that
calculates the
next air filter
change or
cleaning.
i ii

SETTING AND OPERATING THE THERMOSTAT ............ 2
Setting your indoor temperature set points .............. 2
Setting the fan operation ............................... 3
Setting the mode operation ............................. 3
Checking the outdoor temperature ...................... 4
Service filter feature .................................... 4
Balterychange out ..................................... 5
AUTO CHANGEOVER .................................. 6
WHAT IF ............................................ 7
The AUXILIARY HEAT indicator is displayed .............. 7
The SERVICE FILTER indicator is displayed .............. 7
You have a power outage ............................... 7
You have a system error message ....................... 7
The ba t_ries are low ................................... 8
COMMON TERMS AND WHERE TO FIND THEM ........... 9
WARRANTY .......................................... 12
iii 1

Setting your indoor temperature set points
1 Press the UP or DOWN button.
The LCD readout will be illuminated and
the heating or cooling temperatureset
point will be displayed but will not
change Next to the temperature
display HEAT or COOL indicates
which temperature set point is
bein 9 displayed
2 Continue to press the UP or DOWN but
tons until your desired heating or cooling
temperature set point isdsplayed
3 Press the MODE button to select the
second temperature settin 9 (either
HEATor COOL)
4 Press the UP or DOWN buttons until your
second desired temperature set point is
displayed
NOTE" Your COOL setting must be at least
2°higher than your HEAT setting. Your
thermostat will automatically change your
previously set temperature to maintain
that 2" difference.
7;_'
COOL
Setting fan operation
1 Press the FAN button to switch between
ON and AUTO fan settings.
FAN on indicator will be displayed
on LCD. When the ON mode is
selected, the fan runs continuously
for improved air circulation.
When the AUTO mode is selected
the fan runs only as needed to
mairf_ain your desired indoor tem-
perature. FAN on indicator is not
dsplayed on LCD. iL-
COOL
Setting mode operation
1 Press the MODE button.
2On the LCD readout, the words OFF,
HEAT, COOL, and AUTO will rotate as the
MODE button is pressed. f
If you have a heat pump, the LCD /--I-II
readout will show OFF HEAT, "/ ,_,IIc I
COOL, AUTO, and EMERGENCY HEATCOOLAUTO
HEAT (EHEAT) _J
NOTE In AUTO mode, your system will
heat OR cool as needed to reach your
2 3

desired temperature. AUTO mode may be
dscbled.
Checking the ou tdoor temperature
1Press the UP and DOWN buttons
simultaneously for 20 seconds then
release
2The outdoor temperature will show on the
LCD readout.
NOTE" If 2 dashes (--) appear, your
thermostat does not include the
outdoor temperature function or
the function is not working properly
Check with your dealer if you are
unsure.
Se_ce filter feature
Your thermostat reminds you when it's
time to change or clean your filter by
displaying the SERVICE FILTER
indcator.
SERVICEFILTER
7,_--'
COOL
1 Press the RESET FILTER button after you
have changed or cleaned your filter to
restart the timer. 4
Batte rychange out
If the installation requires the usage of batteries, the
batteries will require replacement eve ry12 months.
1 Open door on thermostat.
2Slidebattery compartment door to the right.
3Remove two AA alkaline _tteries.
4Follow polarity markings (+/-) on the thermo-
stat.
5Install two new AA alkaline batteries and replace
Icette rydoor.
NOTE" If installation is hard-wired, batteries are
not required or will not need replacement.
5

Your thermostat provides complete, automatic
control over heating and cooling with auto
changeover. Auto changeover means your system
will automatically heat or cool as needed to main-
tain your temperature set points.
Auto changeover makes life easier because you
no longer have to manually switch the thermostat
between heating or cooling operation. Just set
your heating and cooling set points and let the
system do the rest!
NOTE: I[ auto changeover is not necessary in your
area of the country, your installer may disable the
AUTO mode feature.
The AUXILIARY HEAT indicator is displayed...
The AUX HEAT indi c_or appears on the heat pump
version of the thermostat only. It is displayed when
your system is operating on auxiliary heat.
NOTE This indicator does not reflect aproblem
with your system.
The SERVICE FILTER indicator is displayed...
The SERVICE FILTER indi cator tells you when to
clean or replace your air filter. Press the RESET
FILTER bu tlan after cleaning or replacing the filter
to turn off the indicator and re set the system.
NOTE This indicator does not reflect a problem
with your system.
You have a power outage...
An internal power sou rce maintains the desired
tempera tu re settings indefinitely.
You have a sy stem error message...
The temperaturesensor failure indicator sends
a -- reading to the LCDclsplay. This means your
thermostat's temperature sensor is no longer able to
6 T

measure temperatures. You will need to contact your
dealer to repair the problem.
An E2 reading on the LCD display means there is
not enough voltage for the system to operate.
Contact your dealer for further information.
A flashing E3 (a tternating with room temperature)
indicates the outdoor air temperature sensor is
absent or not working properly (and is needed for
proper operation).
If the outdoor air temperaturesensor is absent, the
outdoor temperature reading will be "--".
The batteries are low...
If the batteries are low, the display will indi care a low
battery signal on the thermostat. Replace the ba t-
teries with two AA alkaline I:alteries.
NOTE If the product is hard-wired by the installer,
the batteries will never have to be replaced.
AuxiliaryHeat .............................. Pg. 7
Most heat pump systems require a supplemental
heating source, called auxili a ryheat, to maintain your
comfo rtwhen outdoor temperatures fall
significantly. Your thermostat lets you know when
your home is being warmed with supplemental heat.
NOTE For additional energy savings opportunities,
ask your dealer about locking out auxili a ry heat at a
selected outdoor temperature.
Service Fi Iter .............................. Pg. 4
Your system's air filter will require regular cleaning to
reduce the dirt and dust in the system and your
indoor air. The SERVICE FILTERindicator lets you
know when it's time to clean the filter.
Fan ....................................... Pg. 3
Your system's fan can run continuously or only as
calied for during heating or cooling. Continuous
operation helps with air circulation and cleaning.
Automatic operation provides energy savings. Press
the FAN button to make your choice.
8 9

Mode ..................................... Pg. 3
Mode refers to the type of operation your system is
set up to perform. Mode settings include: OFF, HEAT,
COOL and AUTO. Heat pump systems also include
EMERGENCY HEAT (EHEAT).
Outdoor Temperature ....................... Pg. 4
Your thermostat not only registers the indoor temper-
ature, but it may also be equipped to register and
display the outdoor temperature as well. Press the UP
and DOWN buttons simultaneously to read the out-
door temperature display.
Power Outage .............................. Pg. 7
Complete loss of electricity. Your thermostat has an
internal power source that will allow it to maintain
your desired temperature settings indefinitely. This
function does not require batteries.
Reset FiIter ................................ Pg. 4
The reset filter function turns off the SERVICE
FILTER indi cator and restarls the system. Press the
RESET FILTERbu tlon after you've cleaned and
replaced the system's air filter.
Set Poir_s ................................. Pg. 2
The heatin 9 and coolin 9 temperature set points you
wish the system to maintain and have entered into
the thermostat. The actual room temperature will
automatically be displayed, but you can check the
desired temperature by pressin 9 either the UP or
DOWN bu tlon. While the SET TEMP indi cator is lit,
press the MODE button to display the desired tem-
perature set points for the other mode.
Temperature Sensor ........................ Pg. 7
The temperature sensor measures the current indoor
or outdoor temperatures which are displayed on the
thermostat.
Up and Down Buttons ....................... Pg. 1
These buttons are used to set your desired
temperature set points.
10 11

This thermostat includes a five-year limited warranty,
For detailed warranty information, please refer to the
All Product Limited Warranty Ca rd included in your
information packet
This thermostat is also eli 9ible for manufacture Cs
extended system warranties, Ask your dealer for
details on extended warranties for longer-term
protection,
°l rn gxpcrt£
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