Bryant Programmable Thermidistat Owner's Manual

Programmable
Thermidistat

™

Control
Homeowner’s
Guide

Easy-To-Use, Trusted
Comfort.

Congratulations! As the owner
of a new Thermidistat™Control,
you have made a commitment to
enjoying enhanced home comfort.
This Thermidistat Control provides
reliable and consistent indoor
temperatures with the added
comfort of proper humidification.
Combining the brains of a computer
and the simplicity of a garage door
opener in an attractively designed

COMFORT CONTROL

COMFORT CONTROL

Programmable
Thermidistat

™

Control
Homeowner’s
Guide

Easy-To-Use, Trusted
Comfort.

Congratulations! As the owner
of a new Thermidistat™Control,
you have made a commitment to
enjoying enhanced home comfort.
This Thermidistat Control provides
reliable and consistent indoor
temperatures with the added
comfort of proper humidification.
Combining the brains of a computer
and the simplicity of a garage door
opener in an attractively designed
package, Bryant makes enjoying
the comfort of your home easier
than ever. Just follow the instruc­tions in this guide, then relax
knowing your Thermidistat Control
is in command of your comfort.

COMFORT CONTROL

COMFORT CONTROL

PROGRAM button
starts the
programming
process and moves
you from one step to
the next.

COPY PREVIOUS
DAY button copies
the previous day’s
comfort schedule
into the current
day’s schedule.

CHANGE DAY
button advances you
to the next day to be
programmed and
advances the day
of the week
display.

ROOM TEMPERATURE
DISPLAY shows current
room temperature.

TEMPERATURE SETTINGS
DISPLAY shows the
temperature settings for
current time period.

OUTDOOR TEMPERATURE
DISPLAY shows the
outdoor temperature.

TIME OF DAY
DISPLAY exhibits the
time of day.

CLEAN FILTER
INDICATOR lets you
know it is time to
clean or replace your
system’s air filter.

AUXILIARY HEAT
INDICATOR is
displayed when a
heat pump system’s
auxiliary heat is on.

HUMIDITY
button changes
the display to
show himidity
readings and
allows you to
change humidity
settings.

VACATION button
changes temperature
and humidity set
points to lower levels
for optimum energy
efficiency while
you’re away.

RESET FILTER
FUNCTION restarts
the timer that
determines the next
air filter change or
cleaning. Ac
tivated by pressing
VACATION and
END buttons
simultaneously.

UP AND DOWN
buttons change the
temperature and
humidity set points.
They are also used to
access outdoor
temperature and
indoor humidity
levels.

FAN button chooses ON
or AUTO fan operation.

HOLD/END button
maintains the current
temperature settings.
Also used to end
temperature and
humidity programming
sequence.

SET TIME/TEMP button
allows you to enter
the time of day and
temperature settings.

Year-Round Comfort.

Bryant’s ThermidistatTMControl provides enhanced, year-round comfort. By providing both
temperature and humidity control, this simple, yet powerful, device lets you take the steam out
of summer, the static out of winter and helps eliminate that annoying moisture build-up on
your windows when it’s cold outside. It’s never been quite this easy, and you’ve never had quite
this much comfort available through one control.

Simple, Convenient Control.

Bryant puts your family’s comfort at your fingertips with simple instructions, responsive
push buttons and an easy-to-read, lighted display. Once set, the thermidistat control accurately
monitors indoor conditions and reliably meets your desired comfort levels. Plus, you have the
convenience of temporarily bypassing your settings without disrupting your permanent
comfort schedule.

NOTE: Not all messages displayed in above illustration will appear at once in any situation.

MODE button selects OFF, HEAT,
COOL or AUTO operation.
EMERGENCY HEAT (EHEAT) mode
is also included when the
thermidistat control is installed
with a heat pump.

TABLE OF CONTENTS

PROGRAMMING THE THERMIDISTA T CONTROL

Setting the current day........................................1

Setting the current time......................................1

Setting the mode operation ................................2

Setting the fan operation ....................................3

Personalize your comfort....................................5

Setting your comfort schedule............................6

Copying a daily schedule.................................10

Setting the humidification level........................10

Setting the dehumidification level....................13

Setting the “cool to dehumidify” function ........14

OPERATING THE THERMIDIST A T CONTROL

Changing your comfort schedule......................16

Overriding your comfort schedule....................16

Checking the outdoor temperature

and indoor humidity.....................................17

Checking current programmed time

and temperature settings...............................18

Checking current humidification

and dehumidification settings. ......................19

Clean filter feature ............................................20

Vacation feature setup ......................................21

Vacation feature operation ..............................24

AUTO CHANGEOVER.........................................25

SMART RECOVERY .............................................26

What if…

The auxiliary heat indicator is displayed...........27

The clean filter indicator is displayed...............27

The hold indicator is displayed.........................27

The out indicator is displayed...........................28

You have a power outage.................................28

You have a system error message .....................28

Warranty.............................................................30

Common Terms and Where to Find Them ...........31

i

PROGRAMMING THE THERMIDIST A T CONTROL

Setting the current day

1 Press the CHANGE DAY button.

The day of the week will change.

2 Stop on the desired day. The Thermidistat

Control then follows the program schedule
for that day.

Setting the current time

1 Press the SET TIME/TEMP button.

The word TIME flashes on the display.

2 Press the UP or DOWN buttons

until the correct time is displayed. To quickly
advance to the proper time, press and hold
the UP or DOWN button. To ensure accurate
programming, be sure that AM or PM is
properly selected.

1

PROGRAMMING THE THERMIDIST A T CONTROL

3 When the correct time appears on the display,

press the HOLD/END button.

NOTE: If you choose not to press the HOLD/END
button, the word TIME will stop flashing after
15 seconds.

NOTE: If you live in a Daylight Savings Time area,
you may advance the time 1 hour in the Spring by
simultaneously pressing the SET TIME/TEMP button
and the UP button. In the Fall, you may set back
the time 1 hour by simultaneously pressing the
SET TIME/TEMP button and the DOWN button.

Setting mode operation

1 Press MODE button.
2 When the MODE button is pressed, the words

OFF,

HEAT,

2

PROGRAMMING THE THERMIDIST A T CONTROL

COOL,

and AUTO
will rotate on the display.

If you have a heat pump, the display
will show OFF, HEAT, COOL, AUTO,
and EHEAT.

NOTE: In AUTO mode, your system will heat OR
cool as needed to reach your temperature settings.

3 Continue to press the MODE

button until you reach the desired setting.

Setting the fan operation

1 Press the FAN button to switch

between ON and AUTO fan settings.
When the ON mode is selected, the fan runs

continuously for improved air circulation.

3

PROGRAMMING THE THERMIDIST A T CONTROL

NOTE: If the indoor humidity level is above
the dehumidify setting, the fan will shut off for
5 minutes after the air conditioner shuts off.
During this period, a triangle next to the word
ON will flash.

When the AUTO mode is selected, the fan
runs only as needed to maintain your indoor
temperature settings.

4

PROGRAMMING THE THERMIDIST A T CONTROL

P ersonalize Y our Comfort

Before you program your Thermidistat
Control, take a moment to plan your
temperature schedule. Each day of the
week is divided into 4 time periods:
WAKE, DAY, EVENING, and SLEEP.
For each time period, enter a start time,

heating temperature, and cooling
temperature in the appropriate blank.
Once completed, this chart will be your
guide during programming.

NOTE: Your Thermidistat Control requires your
cooling temperature to be at least 2° higher than
your heating temperature.

5

PROGRAMMING THE THERMIDIST A T CONTROL

HUMIDITY SETTINGS

SUGGESTED SETTINGS

Humidify–
De-humidify – 50% - 60% suggested

depending on installation, area of the
country, and your heating & cooling
equipment.

VACATION SCHEDULE

Setting your comfort schedule

Before you begin programming, refer to
page 5 of this manual to plan your
personal comfort schedule.

1 Press the PROGRAM button.

The word PROGRAMMING appears on the
display and the word TIME flashes on
the display.

6

PROGRAMMING THE THERMIDIST A T CONTROL

Above the clock, the word WAKE, DAY, EVE,
or SLEEP will appear. The day to be programmed
is displayed with a 2-letter abbreviation:
MO, TU, WE, TH, FR, SA, or SU.

NOTE: Your Thermidistat Control will always start
the programming process in the current time
period and current day. You may wish to begin pro­gramming on a different day or time period.
To change the time period, press the PROGRAM
button as needed until the correct time period,
WAKE, DAY, EVE, or SLEEP appears. Press the
CHANGE DAY button to display the desired day.

2 Using your personalized comfort

schedule as a guide, press the UP and
DOWN buttons to set the time for the
indicated time period.

3 Press the SET TIME/TEMP button.

The word HEAT flashes on the display.

7

PROGRAMMING THE THERMIDIST A T CONTROL

NOTE: Pressing the SET TIME/TEMP button
allows you to select between HEAT, COOL, and
TIME settings.

4 Press the UP and DOWN buttons

to adjust the heating temperature setting to
match your personalized comfort schedule.

5 Press the SET TIME/TEMP button to

select the cooling temperature setting for this
time period.

The word COOL flashes on the display.

6 Press the UP and DOWN buttons

to adjust the cooling temperature setting
listed in your personalized comfort schedule.

NOTE: Your COOL setting must be at least 2°
higher than your HEAT setting. Your Thermidistat
Control will automatically change your previously
set temperature to maintain that 2° difference.

8

PROGRAMMING THE THERMIDIST A T CONTROL

7 Press the PROGRAM button to

advance to the next time period. Following
your personalized comfort schedule, enter
times and temperatures for DAY, EVE, and
SLEEP time periods.

You have now programmed 1 day into your
Thermidistat Control. At this time, you can
either repeat steps 1-7 until all days of the
week have been programmed, OR you can
copy the schedule onto the remaining days of
the week. See the section on ”Copying a
daily schedule“ for details.

NOTE: During programming, if you have not
touched a button or made an entry within 3 min­utes, the programming mode will automatically
shut off. Anything you have programmed will be
saved.

8 Press the HOLD/END button when

you finish entering your comfort schedule.

NOTE: Once you’ve programmed your comfort
schedule, the Thermidistat Control will continue
operating on that program until you enter an
alternative schedule. It may be appropriate to
adjust temperatures as seasons change.

9

PROGRAMMING THE THERMIDIST A T CONTROL

Copying a daily schedule

Typically, your Monday through Friday
comfort schedule will be the same. That’s
why the Thermidistat Control includes a
COPY PREVIOUS DAY button. When
programming, this eliminates the need to
re-enter identical information for each day.

1 Program a daily schedule.

Suggestion: Start with Monday so the
following 4 days can be copied.

2 Press the CHANGE DAY button

to move to the next day.

3 Press the COPY PREVIOUS DAY

button.
The previous day’s schedule will be entered

into the new day.

4 Continue this process by repeating

steps 2 and 3.

Setting the humidification level

1 Press the HUMIDITY button to

enter the humidity programming mode.
The current indoor humidity (large number) is

displayed along with the humidify setting
indicator (hu) or dehumidify (dhu) setting
indicator and the current humidify set point
(small number).

10

PROGRAMMING THE THERMIDIST A T CONTROL

If the dhu indicator is displayed, press the

HUMIDITY button again to display
the hu indicator.

NOTE: To change between humidify (hu) and
dehumidify (dhu), press the HUMIDITY button.

2 With the humidify (hu) setting

displayed, press the UP or DOWN button to
adjust the humidify setting. Humidity levels
can be set from 10% to 45%. Or, to turn

humidification off, press the MODE button
until ”OF“ appears on the display.

(See suggested settings on page 6)

3 Press the MODE button to select

between:
a. FAN indicator displayed — fan and humidifier
on every time humidification is needed.

11

PROGRAMMING THE THERMIDIST A T CONTROL

NOTE: With the FAN indicator on, you will realize
maximum humidification, but the air may feel cold
because the heat source is not always on. With the
FAN indicator off, you will conserve water and
electricity with adequate humidification.

b. AUTO indicator displayed — humidify
setting automatically changes according to
outdoor weather. This reduces the chance of
moisture buildup on windows in colder
weather.

NOTE: This feature requires the use of the outdoor
air temperature sensor.

c. AUTO and FAN displayed — combines
the features of a and b.

d. OF displayed — humidify function is
turned off.

12

PROGRAMMING THE THERMIDIST A T CONTROL

e. Humidify setting only displayed —
humidify setting does not change according
to outdoor temperature.

4 Press the HOLD/END button to

exit the humidity programming mode.

Setting the dehumidification level

NOTE: This optional function is for use with
variable capacity equipment only.

1 Press the HUMIDITY button to

enter the humidification programming mode.
The current indoor humidity (large number) is

displayed along with the humidify (hu) or
dehumidify (dhu) setting indicator and the
current dehumidify set point (small number).

If the hu indicator is displayed, press the

HUMIDITY button again to display
the dhu indicator.

NOTE: To change between humidify (hu) and
dehumidify (dhu), press the HUMIDITY button.

13

PROGRAMMING THE THERMIDIST A T CONTROL

2 With the dehumidify setting

displayed, press the UP or DOWN button to
adjust the dehumidify setting. Dehumidify
levels can be set from 50% to 90%. Or, to
turn dehumidification off, press the MODE
button until OF appears on the display.

(See suggested settings on page 6)

3 Press the HOLD/END button

to exit.

Setting the “cool to dehumidify”
function

This setting allows a standard comfort
system to provide moderate
dehumidification by running the air
conditioner. The function can also be
used with variable-capacity equipment.

NOTE: While in the “cool to dehumidify” mode,
the indoor air temperature will not drop more
than 3° below the cooling set point with a
dehumidification demand.

14

PROGRAMMING THE THERMIDIST A T CONTROL

1 Press the HUMIDITY button until

”dhu“ is displayed.

2 Press the UP or DOWN buttons to

raise or lower the dehumidify setting.
Dehumidification can be set from 50% to 90%.

To turn dehumidification off, press the MODE
button until OF appears on the display.

3 Press the MODE button until the

COOL icon is displayed.

4 Press the HOLD/END button

to exit.

15

OPERA TING THE THERMIDIST A T CONTROL

Changing your comfort schedule

1 Press the PROGRAM button to

begin the programming process.

2 Make necessary changes by

following previous sections.

3 Press the HOLD/END button to

end the programming process.

NOTE: Entering new information always deletes
the old selections. Refer to the table of contents
at the front of this guide to locate the type of
programming you desire.

Overriding your comfort schedule

There are 2 ways to override the existing
program.

1 Pressing the HOLD/END button.

By pressing the HOLD/END button, the
Thermidistat Control will maintain the current
temperature settings and ignore the comfort
schedule for an indefinite period of time.
The word HOLD will appear in the display.
Press the HOLD button a second time and
the Thermidistat Control will resume normal
operation, returning the temperature settings
to the programmed comfort schedule. The
Thermidistat Control will change the
temperature setting as needed upon the next

16

OPERA TING THE THERMIDIST A T CONTROL

program cycle. Pressing HOLD will not
permanently alter your set program.

2 Pressing the UP or DOWN buttons.

By pressing the UP or DOWN button, the
current temperature settings appear on the
display. Pressing the UP or DOWN button
again will temporarily change the temperature
setting above the flashing indicator as needed.
To change the other setting for this time
period, press the SET TIME/TEMP button until
the other setting indicator flashes. Pressing
the UP or DOWN button again will

temporarily change the other temperature
setting as needed. The Thermidistat Control
will automatically restore the comfort sched
ule settings at the next programmed time.

Checking the outdoor temperature
and indoor humidity

1 Press the UP and DOWN buttons

simultaneously.

17

OPERA TING THE THERMIDIST A T CONTROL

2 The outdoor temperature will appear on

the display.

Then, the indoor humidity will be displayed.

NOTE: If 2 dashes (--) appear, your Thermidistat
Control does not include the outdoor air
temperature sensor or the sensor is not working
properly. Check with your dealer if you are unsure.

Checking current programmed time
and temperature settings

1 Press the PROGRAM button.
2 The current time and temperature settings

for the current day and time period are
displayed for you to check.

18

OPERA TING THE THERMIDIST A T CONTROL

3 Press the PROGRAM button again

to advance to the next time period for the
same day. Continue this process to review all
settings for the day.

4 Press the CHANGE DAY button to

view the next day’s settings.

5 Repeat steps 3 and 4 to review entire 7 day

schedule.

CAUTION: Pressing any other buttons while
reviewing current selections could alter the
set program.

6 Press the HOLD/END button to

exit the program mode.

Checking current temperature

The Thermidistat Control will display cur­rent temperature. To view your current
temperature settings, press the UP or
DOWN button once. The heat and cool
temperature settings will be displayed.

Checking current humidification
and dehumidification settings

1 Press the HUMIDITY button.

19

OPERA TING THE THERMIDIST A T CONTROL

The current indoor humidity (large number) is
displayed along with the humidify or
dehumidify settings (small number).

2 Press the HUMIDITY button again

to view the other setting.

3 Press the HOLD/END button.

Clean filter feature

Your Thermidistat Control reminds you
when it’s time to change or clean your
filter by displaying the CLEAN FILTER
indicator.

1 Press the VACATION and

HOLD/END buttons
simultaneously after you have changed or
cleaned your filter to restart the timer.

20

OPERA TING THE THERMIDIST A T CONTROL

Vacation feature setup

The vacation feature allows a separate set
of temperature and humidity settings to be
stored for vacation and recalled with a
single button press.
The vacation feature is preprogrammed for
you with vacation settings for temperature
and humidity. (Heat 60°, cool 85°,
hu 10%, dhu 75%) If these are okay, skip
ahead to ”vacation feature operation.“
If you wish to enter new settings, continue
with this section.

1 Press the VACATION button to

display the vacation temperature settings.

The OUT indicator is displayed.

2 If you wish to change these

settings, press the UP or DOWN button.
The current mode, either HEAT or COOL,

flashes on the display.

21

OPERA TING THE THERMIDIST A T CONTROL

3 Press the UP or DOWN button to

adjust the setting for the flashing mode.

4 Press the SET TIME/TEMP button until the

other mode indicator flashes.

5 Press the UP or DOWN button to

adjust the setting for the flashing mode.

6 Press the HUMIDITY button to

display the current humidify or dehumidify
setting.

22

OPERA TING THE THERMIDIST A T CONTROL

7 If you wish to change this setting,

press the UP or DOWN button to adjust
the setting.

8 Press the MODE button to select

the vacation humidify or dehumidify mode.

9 Press the HUMIDITY button to

display the second setting — either humidify
or dehumidify.

10 If you wish to change this setting,

press the UP or DOWN button again to
change the indicated setting.

23

OPERA TING THE THERMIDIST A T CONTROL

11 Press the MODE button to select

the vacation humidify or dehumidify mode.

12 Press the HOLD/END button to

end.

NOTE: In dehumidify, you may enter a setting,
choose “cool to dehumidify,” or turn
dehumidification off (OF). In humidify, you may
enter a setting or turn humidification off (OF).

Vacation feature operation

1 Press the VACATION button when

you are ready to leave. Be sure you have
properly selected the mode (HEA T, COOL, A UTO).

The OUT indicator is displayed, and your
system will automatically follow your
temperature and humidity settings.

2 Press the VACATION button when

you return to resume normal operation.

24

AUTO CHANGEOVER

Your Thermidistat Control provides
complete, automatic control over heating
and cooling with auto changeover. Auto
changeover means your system will
automatically heat or cool as needed to
maintain 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 temperature set points and let the
Thermidistat Control do the rest!

NOTE: If auto changeover is not necessary in your
area of the country, your installer may
disable the AUTO mode.

25

SMART RECOVERY

Smart recovery is a feature of your new
Thermidistat Control designed to save ener­gy by gradually adjusting temperatures.

When it’s time for a programmed
temperature change, smart recovery
begins working in advance, turning the
system on and off as needed to slowly
adjust the indoor temperature. During
these transition periods, you may notice
that the actual temperature and your
temperature setting don’t match. That’s
smart recovery in action, adjusting
temperatures in small increments for
greater energy efficiency. This is more

energy efficient than simply allowing the
system to operate at full capacity until the
desired temperature has been met.

NOTE: The Thermidistat Control will start adjusting
the temperature 1.5 hours before the scheduled
temperature change.

26

WHAT IF…

AUXILIARY HEAT indicator is displayed…

The AUXILIARY HEAT indicator appears on
the heat pump version of the Thermidistat
Control only. It is displayed when your
system is operating on auxiliary heat.

NOTE: This indicator does not reflect a problem
with your system.

CLEAN FILTER indicator is displayed…

The CLEAN FILTER indicator tells you
when to clean or replace your system’s air
filter. Press the VACATION and
HOLD/END buttons simultaneously after
cleaning or replacing the filter to turn off
the indicator and restart the timer.

NOTE: This indicator does not reflect a problem
with your system.

HOLD indicator is displayed…

The HOLD indicator reminds you that
your Thermidistat Control’s comfort
schedule has been overridden. This
function will hold the current temperature
settings indefinitely, so it can be used to
hold an energy-saving temperature setting
for several days if needed. Press the HOLD
button to resume normal system operation.

NOTE: This indicator does not reflect a problem
with your system.

27

WHAT IF…

OUT Indicator is displayed…

The OUT indicator reminds you that your
system is in vacation mode. This function
automatically adjusts the temperature and
humidity settings to levels appropriate for
when you’re away. Press the VACATION
button to resume normal system operation.

NOTE: This indicator does not reflect a problem
with your system.

EQUIPMENT ON Indicator is displayed…

When the cooling equipment is operating, the
word COOL preceded by a small
triangle is displayed below the cooling set
point. When the heating equipment is

operating, the word HEAT preceded by a small
triangle is displayed below the heating set
point. If the equipment turn on is being
delayed, the triangle and the word will flash.

NOTE: This indicator does not reflect a problem
with your system.

You have a power outage…

An internal power source eliminates the
need to reprogram the Thermidistat
Control after power outages. The comfort
schedule you have entered will be
maintained indefinitely. Clock will run for
8 hours.

28

WHAT IF…

You have a system error message…

The display may appear as follows: --, E3,
E4, E5, or E6

-- indicates a problem with the
indoor air sensor

E3 indicates a problem with the

outdoor air temperature sensor

E4, E5, or E6 indicates internal failure

29

WARRANTY

This Thermidistat Control includes a 1-year
limited warranty. For detailed warranty
information, please refer to the All Product
Limited Warranty Card included in your
information packet. T his T hermidistat
Control is also eligible for manufacturer’s
extended system warranties. Ask your deal­er for details on extended warranties for
longer-term protection.

30

COMMON TERMS AND WHERE TO FIND THEM

Auxiliary Heat .................................Pg. 27

Most heat pump systems require a
supplemental heating source, called
auxiliary heat, to maintain your comfort
when outdoor temperatures fall significantly.
Your Thermidistat Control lets you know
when your home is being warmed with
supplemental heat.

NOTE: For additional energy savings opportunities,
ask your dealer about locking out auxiliary heat at
a selected outdoor temperature.

Change Day.......................................Pg. 1

Change day is a function of your
Thermidistat Control’s programming. Once
you’ve programmed a day’s heating or

cooling schedule, you move to the next
day by pressing the CHANGE DAY button.
This button also advances the day of the
week on the display.

Clean Filter......................................Pg. 20

Your system’s air filter will require regular
cleaning to reduce the dirt and dust in the
system and your indoor air. The CLEAN
FILTER indicator lets you know when it’s
time to clean the filter.

Comfort Schedule ..............................Pg. 5

The comfort schedule is a personalized list
of the heating and cooling temperature set­tings along with a corresponding time of

31

COMMON TERMS AND WHERE TO FIND THEM

day. This schedule includes 4 time
periods per day, and can feature a different
comfort schedule each day of the week.

Copy Previous Day ..........................Pg. 10

This programming function allows you to
copy the previously programmed day for
use in setting the current day’s schedule. It
is activated by pressing the COPY
PREVIOUS DAY button.

Current Day and Time .......................Pg. 1

The day of the week and current time are
displayed continuously on the display.

Dehumidification Level ...................Pg. 13

The amount of moisture to be removed
from your home. You can check your
actual humidity level and your desired
dehumidification level by pressing the
HUMIDITY button.

Emergency Heat ................................Pg. 3

This indicates that auxiliary heat is being
used without the heat pump.

End ....................................................Pg. 2

The HOLD/END button returns the
Thermidistat Control to normal operation.

32

COMMON TERMS AND WHERE TO FIND THEM

Fan.....................................................Pg. 3

Your system’s fan can run continuously
or only as called 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.

Hold ..................................................Pg. 2

This function allows you to override the
programmed temperature settings.

Humidification Level.......................Pg. 10

The amount of moisture desired in your
home to be supplied by the humidifier. You
can check the actual humidity level and
your desired humidification level by press­ing the HUMIDITY button.

Mode.................................................Pg. 2

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).

33

COMMON TERMS AND WHERE TO FIND THEM

Outdoor T emper ature......................Pg. 17

Your Thermidistat Control not only registers
the indoor temperature, 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
outdoor temperature display.

Override..........................................Pg. 16

Temporarily disregards the Thermidistat
Control’s programmed temperature settings
and schedules. You can override the
system by pressing the HOLD/END button
to maintain the current temperature
indefinitely or by pressing the UP and

DOWN buttons to change the temperature
settings for the remainder of the current
period.

Power Outage ..................................Pg. 28

Complete loss of electricity. Your
Thermidistat Control has an internal power
source that allows it to continue to run for
8 hours or more without electricity.
Programmed settings are stored
indefinitely without the aid of batteries.

Program.............................................Pg. 6

The program function of your Thermidistat
Control allows you to enter time and tem­perature information into the Thermidistat

34

COMMON TERMS AND WHERE TO FIND THEM

Control. To activate the program function,
press the PROGRAM button.

Reset Filter.......................................Pg. 20

The reset filter function turns off the
CLEAN FILTER indicator and restarts the
timer. Press the VACATION and
HOLD/END buttons simultaneously after
you’ve cleaned and replaced the system’s
air filter.

Set T ime.............................................Pg. 1

This function allows you to set the proper
time, ensuring accurate heating and
cooling schedules. Press the SET
TIME/TEMP button to activate.

Temperature Sensors........................Pg. 12

Temperature sensors measure the current
indoor or outdoor temperatures which
are displayed on the Thermidistat Control.

Temperature Settings.........................Pg. 8

These settings are the temperatures
programmed into the Thermidistat Control
as part of your comfort schedule. The
actual room temperature will automatically
be displayed, but you can check the
desired temperature for the current mode
by pressing either the UP or DOWN
button.

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Time of Day.......................................Pg. 5

When programming the Thermidistat
Control, time of day refers to the 4 time
periods available, including WAKE, DAY,
EVE, and SLEEP. Time of day also refers
to the time shown on the Thermidistat
Control’s display.

Up and Down Buttons .......................Pg. 1

These buttons are used to set the clock
and enter other time and temperature
information.

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NOTES

37

NOTES

38

NOTES

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