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Now that you own Carrier’s Thermidistat
Control, it’s time to customize your
indoor weather. 

Carrier’s intelligent, easy-to-use

indoor weather command center combines comput-
er-like intelligence with extremely simple operation
in an elegant package.  It maximizes the performance
of your Carrier indoor weather system so you can
enjoy custom made indoor weather that fits your
lifestyle.  By precisely controlling indoor tempera-
tures and humidity levels, our Thermidistat Control
keeps you comfortable while conserving energy. Just
follow the simple instructions outlined in this 
manual and let Carrier’s Thermidistat Control deliver
the customized comfort and energy savings that 
you deserve.

Custom made indoor weather.

Carrier Corporation

Indianapolis, IN 46231

© 19

98 Carrier Corporation

Form: OMTSTA

T -11

Replaces: OMTSTA

T -8

Printed in the U.S.A.

9-98

Catalog No. 03TS-TA11

Homeowner’s Guide

com

for

t

THERMIDISTAT™ CONTROL

Manufacturer reserves the right to discontinue,

or change at an

y time,

specifications or designs without notice or without incurring obliga

tions.

NP TMstat Homeowner's Guide  8/24/01  11:21 AM  Page 1

Summary of Contents for Thermidistat

Page 1: ... center combines comput er like intelligence with extremely simple operation in an elegant package It maximizes the performance of your Carrier indoor weather system so you can enjoy custom made indoor weather that fits your lifestyle By precisely controlling indoor tempera Custom made indoor weather Homeowner s Guide comfort THERMIDISTAT CONTROL ...

Page 2: ...the performance of your Carrier indoor weather system so you can enjoy custom made indoor weather that fits your lifestyle By precisely controlling indoor tempera tures and humidity levels our Thermidistat Control keeps you comfortable while conserving energy Just follow the simple instructions outlined in this manual and let Carrier s Thermidistat Control deliver the customized comfort and energy...

Page 3: ...idifi cation set point SET TIME Button allows you to enter the time of day SET HEAT Button allows you to enter your desired heat ing set point VACATION Button changes temperature and humidity set points to lower levels for opti mum energy efficiency while you re away RESET FILTER Function restarts the timer that determines the next air filter change or cleaning Activated by pressing VACATION and E...

Page 4: ...illustration will appear at once in any situation Available on selected models SET HUM Button allows you to change humidifi cation set point SET TIME Button allows you to enter the time of day SET HEAT Button allows you to enter your desired heat ing set point VACATION Button changes temperature and humidity set points to lower levels for opti mum energy efficiency while you re away RESET FILTER F...

Page 5: ... 10 OPERATING THE THERMIDISTAT CONTROL Checking current temperature 12 Checking the outdoor temperature and indoor humidity 12 Checking current humidification and dehumidification set points 13 Clean filter feature 14 Vacation feature setup 15 Vacation feature operation 19 AUTO CHANGEOVER 20 WHAT IF The auxiliary heat indicator is displayed 21 The clean filter indicator is displayed 21 You have a ...

Page 6: ...ating set point 1 Press the SET HEAT button The word HEAT flashes on the display 2 Press the UP or DOWN button until the correct heating set point is displayed 3 Press the END button to exit Setting the desired cooling set point 1 Press the SET COOL button The word COOL flashes on the display 1 ...

Page 7: ... 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 Setting the current time 1 Press the SET TIME button The word TIME flashes on the display 2 Press the UP or DOWN button until the correct time is displayed To quickly advance to 2 ...

Page 8: ...u choose not to press the 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 button and the UP button In the fall you may set the time back 1 hour by simultaneously pressing the SET TIME button and the DOWN button Setting the mode operation 1 Press the MO...

Page 9: ...TTING UP THE THERMIDISTAT CONTROL 2 When the MODE button is pressed the words OFF HEAT COOL and AUTO will rotate on the display If you have a heat pump the display will show OFF HEAT COOL AUTO and EHEAT 4 ...

Page 10: ...h your temperature settings AUTO mode may be disabled 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 5 ...

Page 11: ...s 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 preferred indoor temperature settings Setting the humidification set point 1 Press the SET HUM button to enter the humidify mode The current indoor humidity large number and humidify set point small number are displayed along with the humidify indicator hu 6 ...

Page 12: ...0 to 45 Or to turn humidification off press the MODE button until OF appears on the display See suggested settings on page 27 3 Press the MODE button to select between a FAN indicator displayed fan and humidifier on every time humidification is needed NOTE With the FAN indicator displayed you will realize maximum humidification but the air may feel cold because the heat 7 ...

Page 13: ...ification 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 an outdoor air temperature sensor c AUTO and FAN displayed com bines the features of a and b d OF displayed humidify function is turned off 8 ...

Page 14: ...ress the END button to exit the humidify mode Setting the dehumidification set point NOTE This function is for use with variable speed equipment only 1 Press the SET DHUM button to enter the dehumidify mode The current indoor humidity large number and dehumidify set point small number are displayed along with the dehumidify indicator dhu 9 ...

Page 15: ...ears on the display See suggested settings on page 26 3 Press the END button to exit Setting the cool to dehumidify function This setting allows a standard comfort system to provide moderate dehumidi fication by running the air conditioner The function can also be used with variable speed equipment NOTE While in the cool to dehumidify mode the indoor air temperature will not drop more than 3 below...

Page 16: ...s the SET DHUM button dhu is displayed 2 Press the UP or DOWN button to raise or lower the dehumidify set point Dehumidification can be set from 50 to 90 3 Press the MODE button until the COOL icon is displayed 4 Press the END button to exit 11 ...

Page 17: ...To view your current temperature set points press the UP or DOWN button once The heating and cooling set points will be displayed Checking the outdoor temperature and indoor humidity 1 Press the UP and DOWN buttons simultaneously 2 The outdoor temperature will appear on the display Then the indoor humidity will be displayed 12 ...

Page 18: ...r temperature sensor or the sensor is not working properly Check with your dealer if you are unsure Checking current humidification and dehumidification set points 1 Press the SET HUM button The current indoor humidity large num ber is displayed along with the humidify set point small number 2 Press the END button 13 ...

Page 19: ... the dehumidify set point small number 4 Press the 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 END buttons simultaneously after you have changed or cleaned your filter to restart the timer 14 ...

Page 20: ...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 15 ...

Page 21: ...ton COOL will flash on the display b Press the UP or DOWN button to adjust the setting c Press the END button to end 3 To change the heating set point a Press the SET HEAT but ton HEAT will flash on the display b Press the UP or DOWN button to adjust the setting c Press the END button to end 16 ...

Page 22: ...ange the dehumidification set point a Press the SET DHUM button The dhu indicator will be displayed b Press the UP or DOWN button to adjust the setting c Press the MODE button to choose the dehumidification mode c Press the END button to end 17 ...

Page 23: ...displayed b Press the UP or DOWN button to adjust the setting c Press the MODE button to turn the humidification feature off OF c Press the END button to end NOTE In dehumidify you may enter a set point choose COOL to dehumidify or turn dehumidification off OF In humidify you may enter a setting or turn humidification off OF 18 ...

Page 24: ...tton when you are ready to leave Be sure you have properly selected the mode HEAT COOL AUTO The OUT indicator is displayed and your system will automatically follow your vacation temperature and humidity settings 2 Press the VACATION button when you return to resume normal operation 19 ...

Page 25: ... 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 set points and let the Thermidistat Control do the rest NOTE If Auto Changeover mode is not necessary in your area of the country your installer may disable the AUTO mode 20 ...

Page 26: ...ry heat NOTE This indicator does not reflect a prob lem 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 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 21 ...

Page 27: ...his 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...

Page 28: ...es The comfort settings you have entered will be maintained indefinitely The clock will run for 8 hours You have a system error message The display may appear as follows E3 E4 E5 or E6 indicates a problem with the indoor air temperature sensor E3 indicates a problem with the outdoor air temperature sensor E4 E5 or E6 indicates an internal failure 23 ...

Page 29: ...d warranty information please refer to the All Product Limited Warranty Card included in your information packet This Thermidistat Control is also eligible for manufacturer s extended system warranties Ask your dealer for details on extended warranties for longer term protection 24 ...

Page 30: ...omfort when outdoor temperatures fall significantly Your Thermidistat Control lets you know when your home is being warmed with supplemental heat Clean Filter Pg 14 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 25 ...

Page 31: ...and your desired dehumidification set point by pressing the SET DHUM button Suggested settings 50 60 suggested depending on installation area of the country and your heating cooling equipment Emergency Heat Pg 4 This indicates that auxiliary heat is being used without the heat pump End Pg 1 The END button returns the Thermidistat Control to normal operation 26 ...

Page 32: ...with air circulation and cleaning Automatic operation provides energy savings Press the FAN button to make your choice Humidification Set Point Pg 6 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 set point by pressing the SET HUM button Suggested settings 27 ...

Page 33: ...e OFF HEAT COOL and AUTO Heat pump systems also include EMERGENCY HEAT EHEAT Outdoor Temperature Pg 12 Your Thermidistat Control not only measures the indoor temperature but it may also be equipped to measure and display the outdoor temperature as well Press the UP and DOWN buttons simultaneously to read the outdoor temperature display 28 ...

Page 34: ...ws the clock to continue to run for 8 hours or more without electricity Settings are stored indefinitely without the aid of batteries Reset Filter Pg 14 The reset filter function turns off the CLEAN FILTER indicator and restarts the timer Press the VACATION and END buttons simultaneously after you ve cleaned and replaced the sys tem s air filter 29 ...

Page 35: ...easure the cur rent indoor or outdoor temperatures which are displayed on the Thermidistat Control Temperature Set Points Pg 1 These are the desired heating and cooling set points entered into the Thermidistat Control 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 30 ...

Page 36: ...ERMS AND WHERE TO FIND THEM Time Pg 2 The current time is displayed continuously on the display Up and Down Buttons Pg 1 These buttons are used to set the clock and enter temperature and humidity information 31 ...

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