Carrier Thermostat TCSNAC01 User Manual

TCSNAC01, TCSNHP01  
Non--Programmable Thermostat  
Installation Instructions  
Models  
There are 2 different models. The 5th and 6th letters of the part  
number indicate the model. These 2 letters also appear on the  
package and on the circuit board. Be sure to have the proper  
thermostat for the intended application. Models are:  
AC -- 1--stage cool, 1--stage heat for AC systems only.  
HP -- 1--stage cool, 2--stage heat for either HP, or AC with 2--stage  
heat.  
Use each only for its intended purpose. See Table 1.  
INSTALLATION  
Thermostat Location  
Thermostat should be mounted:  
S Approximately 5 ft. (1.5m) from floor.  
S Close to or in a frequently used room, preferably on an inside  
partitioning wall.  
S On a section of wall without pipes or duct work.  
A08147  
NOTE: Read the entire instruction manual before starting the  
installation.  
Thermostat should NOT be mounted:  
S Close to a window, on an outside wall, or next to a door leading  
to the outside.  
SAFETY CONSIDERATIONS  
S Exposed to direct light and heat from a lamp, sun, fireplace, or  
Read and follow manufacturer instructions carefully. Follow all  
local electrical codes during installation. All wiring must conform  
to local and national electrical codes. Improper wiring or  
installation may damage thermostat.  
other temperature--radiating object which may cause a false  
reading.  
S Close to or in direct airflow from supply registers and return--air  
grilles.  
Recognize safety information. This is the safety--alert symbol  
.
S In areas with poor air circulation, such as behind a door or in an  
When you see this symbol on the equipment and in the instruction  
manual, be alert to the potential for personal injury.  
alcove.  
Understand the signal words DANGER, WARNING, and  
CAUTION. These words are used with the safety--alert symbol.  
DANGER identifies the most serious hazards which will result in  
severe personal injury or death. WARNING signifies a hazard  
which could result in personal injury or death. CAUTION is used  
to identify unsafe practices which may result in minor personal  
injury or product and property damage. NOTE is used to highlight  
suggestions which will result in enhanced installation, reliability, or  
operation.  
Select Model  
AC Model  
(1--stage cool, 1--stage heat) is to be used for single stage heating  
and/or cooling applications only.  
HP Model  
(1--stage cool, 2--stage heat) can be used with a single--speed heat  
pump (HP), or an air conditioner (AC) with a 2--stage furnace or  
fan coil. Software Option 5 selects HP/AC operation. This  
thermostat comes configured from the factory as a heat pump  
thermostat. Select AC in software Option 5 for AC operation.  
Power  
Note that all thermostats are dual powered where batteries can be  
installed or in the presence of R and C (24vac) are not required.  
Two AA batteries are furnished with the product.  
 
To enter the configuration mode:  
To enter Configuration Mode, hold the FAN button down for  
approximately 15 seconds. After the 15 second period, Option  
“01” will appear in the display and the SERVICE icon will be  
turned on.  
NOTE: If the FAN button is pressed again or if no button is  
pressed for 3 minutes, the thermostat will exit the configuration  
mode and return to normal operation. To reenter the configuration  
mode, the FAN button must be pressed and held for 15 seconds  
again.  
While in configuration mode:  
The display is used to show both the option number and the  
selection choice within that option.  
OPTION 01 -- ANTICIPATOR ADJUSTMENT  
This adjustment controls the sensitivity and cycle rate of the  
thermostat. Higher numbers decrease the sensitivity and slow the  
cycle rate. Lower numbers increase sensitivity and increase cycle  
rate. However, a limiting feature will not allow more than 6  
equipment cycles per hour, regardless of setting. Values can range  
from 1 to 9. Factory default setting is 3. This default selection will  
provide optimum performance in nearly all installations. Try it  
first. Do not change setting unless there is evidence of need to do  
so.  
Unlike conventional anticipators, this setting is not to be  
determined by current draw. There is no need to measure, know, or  
compensate for current. There is also no droop with this  
thermostat, regardless of anticipator setting. This adjustment  
controls only sensitivity and cycle rate up to the maximum of 6  
cycles per hour.  
To Adjust:  
3
3. Press MODE button once. The SET icon will come on. The  
display now shows Option 07 setting.  
4. Use up and down buttons to move between available  
Option 07 choices of ON or OF. Factory default is OF.  
5. Press MODE button again to return to Option 07. The SET  
icon will now be off.  
6. Use up and down buttons to select another Option, or press  
FAN button to exit configuration mode.  
OPTION 10 -- O (REVERSING VALVE) ON WITH HEAT  
OR COOL SELECTION  
This selection is only available on HP model thermostats when HP  
is selected via Option 05. This selection determines whether the  
reversing valve is energized in the heating or cooling mode.  
Factory default is C, energized in cooling. Use up and down  
buttons to change between H and C.  
To Select:  
1. Enter configuration mode (if not already there).  
2. Use up and down buttons to display Option 10.  
3. Press MODE button once. The SET icon will come on. The  
isplay now shows Option 10 setting.  
4. Use up and down buttons to move between available  
Option 10 choices of H (heat) or C (cool). Factory default is  
C.  
5. Press MODE button again to return to Option 10. The SET  
icon will now be off.  
6. Use up and down buttons to select another Option, or press  
FAN button to exit configuration mode.  
OPTION 13 -- ROOM TEMPERATURE OFFSET  
This option allows calibration (or deliberate miscalibration) of  
4
To Select:  
1. Enter configuration mode (if not already there).  
2. Use up and down buttons to display Option 21. The SET  
icon should be off.  
3. Press MODE button once. The SET icon will come on. The  
display now shows Option 21 setting.  
4. Use up and down buttons to move between available  
Option 21 choices of ON or OF. Factory default is OF.  
5. Press MODE button again to return to Option 21. The SET  
icon will now be off.  
6. Use up and down buttons to select another Option, or press  
FAN button to exit configuration mode.  
Installer Test Mode  
Installer test will be initiated by pressing the fan button for 20  
seconds (15 seconds will enter installer setup) “InS” will appear on  
the screen and the SERVICE icon will be illuminated.  
In installer test mode, pressing the MODE button will change the  
system operating mode. Note that AUTO mode is not available in  
installer test. Heating and cooling modes must be tested  
independently.  
1. If the mode is set to HEAT, the first stage of heating will be  
energized for three minutes (180 seconds), and then the first  
and second stages (if a second stage exists) will turn on for  
5
Thermostat  
Heat  
Fan Coil  
W
Heat Pump  
Thermostat  
Heat  
Fan Coil  
W
Air Conditioner  
O/B  
W
O
W
W
W
Cool  
Fan  
Y
G
R
Y
G
R
Y
R
Cool  
Fan  
Y
G
R
Y
G
R
Y
R
24VAC  
24VAC  
*
Common  
C
C
C
*
Common  
C
C
C
A08163  
A08164  
*Common connection not required if batteries are used.  
*Common connection not required if batteries are used.  
Fig. 3 -- HP Thermostat with Fan Coil  
Fig. 4 -- AC Thermostat with Fan Coil  
WIRING DIAGRAM NOTES:  
1. Furnace must control its own second--stage heat operation via furnace control algorithm. Refer to indoor equipment Installation  
Intructions for proper setup.  
2. See Option 5 information to convert HP thermostats to AC thermostat operation.  
3. As an option, lock the furnace into low--heat operation and let O/B control high--heat operation. Refer to indoor equipment Installation  
Instructions for proper setup.  
4. O/B can control second--stage heat. Refer to indoor equipment Installation Instructions for proper setup.  
5. Refer to outdoor equipment Installation Instructions for latent kit requirements (if any).  
6. Terminals marked with * may not be present on equipment.  
7. O/B energizes reversing valve in cooling or heating. See Option 10.  
8. Refer to outdoor equipment Installation Instructions for proper setup.  
9. If system is wired per diagram, the ACRDJ (jumper) on furnace control board should be removed to allow thermostat to control  
outdoor unit staging.  
10. Refer to fan coil Installation Instructions for proper wiring.  
11. If batteries are installed, C (common wire) is not required between indoor unit and thermostat.  
6
 
OPERATIONAL INFORMATION  
Five-minute Compressor Timeguard  
The cycle timer limits the number of times the heating or cooling equipment can be energized in one hour. If option 1 is set to a value of 1 or  
2, the equipment will be allowed to energize up to six times per hour. If option 1 s set to 3 or greater, then the equipment will be allowed to  
energize up to four times per hour. This timer is defeated for 1 cycle when the desired temperature is manually changed. It can also be  
defeated for 1 cycle by simultaneously pressing the FAN button and the INCREASE TEMPERATURE button.  
Cycle Timer  
This timer prevents the start of a heating or cooling cycle until at least 15 minutes after the last start of the same cycle. Its function is to assure  
that equipment is not cycled more than 4 times per hr. This timer is defeated for 1 cycle when the desired temperature is manually changed. It  
can also be defeated for 1 cycle by simultaneously pressing the FAN mode button and the INCREASE TEMPERATURE button.  
Staging Timer  
In multistage heating or cooling, this timer prevents any higher stage from turning on until the preceding stage has been on for 15 minutes.  
This timer is defeated if the temperature error is greater than 5_F/3_C (usually due to a large change in desired temperature).  
Three-minute Minimum On Time  
In normal operation, when a stage turns on, it will not turn off for a minimum of 3 minutes.  
Heat/Cool Setpoints (Desired Temperatures)  
A minimum difference of 2_ is enforced between heating and cooling setpoints. This is done by allowing one setting to “push” the other, to  
maintain this difference.  
Auto Changeover  
When the auto changeover mode is selected, a change from heat to cool (or vice versa) will not occur until an opposite mode demand has  
existed for 20 minutes. If the setpoint is changed, the 20 minute requirement is deleted. Auto mode may be disabled.  
Emergency Heat Mode  
When thermostat is configured as a heat pump and emergency heat mode is selected, all Y signals are locked out and W becomes energized  
upon a call for heat.  
Heat On and Cool On Icons  
When a heating or cooling demand exists, the HEAT ON or COOL ON icon will either remain on or flash. If flashing, the equipment is  
temporarily prevented from turning on by one of the timers (see above). While the icon remains on without flashing, the equipment is on.  
Power On Check  
When AC power is first applied, all segments of the display are turned on for a few seconds. Following this, the temperature display indicates  
the model/configuration via the following 2 digit code: AC—1--speed air conditioner, HP—1--speed heat pump.  
Error Codes  
---- — If the thermostat cannot properly read room temperature, the display will indicate ---- (2 dashes) and all outputs (except the fan if on)  
will turn off. This is to prevent operation of the equipment if the thermostat has failed.  
E2 — If the AC line voltage drops below a minimum (brownout) level, all outputs are turned off and the display indicates E2. This condition  
will remain for 15 sec after proper line voltage is restored. If the AC line voltage disappears completely, the display will immediately go  
blank.  
Thermostat Troubleshooting  
SYMPTOM  
WHAT TO CHECK  
Blank LCD  
Check for 24vac between R and C at terminal connections or battery.  
Temperature sensor reading out of range. Check sensor for damage. If  
recycling power does not clear display, thermostat should be replaced.  
--- --- ” ( 2 d a sh e s) o n t e m p e r a t u r e d i sp la y  
Brownout condition or too low of voltage to thermostat. Double check  
wiring and check for 24vac between R and C. E2 will clear 15 sec after  
proper voltage is restored.  
“E2” on temperature display  
After the selected number of hour of blower operation “FILTER” will display  
on LCD. This is to remind the homeowner to “check” the filter. Press  
RESET FILTER button to clear display and reset timer to 0.  
“SERVICE FILTER” on temperature display  
Cooling will not come on  
Select COOL mode. Set desired temperature to 10˚F below room temper-  
ature. Simultaneously press FAN and INCREASE TEMPERATURE buttons  
to defeat timers. Check for COOL ON icon and 24vac at Y (first---stage)  
terminal. If present, thermostat is OK and problem is with equipment or  
wiring. If not present, replace thermostat.  
Select HEAT mode. Set desired temperature to 10˚F/6˚C above room  
temperature. Simultaneously press FAN and INCREASE TEMPERATURE  
buttons to defeat timers. Check for HEAT ON and 24vac at Y (first---stage)  
terminal (with heat pump) or W (with air conditioner) terminal. If present,  
thermostat is OK and problem is with equipment or wiring. If not present,  
replace thermostat.  
Heating will not come on  
7
 
C a t a l o g N o : T C S N A C --- 0 1 S I  
Copyright 2008 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231  
Printed in China  
Edition Date: 03/08  
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.  
Replaces: NEW  
8
 
TCSNAC01, TCSNHP01  
Non--Programmable Thermostat  
Homeowner’s Guide  
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.  
RESET FILTER Button  
restarts the timer that calculates the next air filter change or  
cleaning.  
AUXILIARY HEAT Indicator  
is displayed when a heat pump system is operating with auxiliary  
heat air filter.  
SETTING & OPERATING THE THERMOSTAT  
Setting your indoor temperature set points  
A08147  
1. Press the UP or DOWN button.  
CONGRATULATIONS  
INTELLIGENT, EASY TO USE  
The LCD readout will be illuminated and the heating or  
cooling temperature set point will be displayed, but will not  
change. Next to the temperature display, HEAT or COOL  
indicates which temperature set point is being displayed.  
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 temperature 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.  
2. Continue to press the UP or DOWN buttons until your  
desired heating or cooling temperature set point is  
displayed.  
3. Press the MODE button to select the second temperature  
setting (either HEAT or COOL).  
COMFORT AT YOUR COMMAND  
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.  
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  
Setting fan operation  
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.  
1. Press the FAN button to switch between ON and AUTO fan  
se ttings.  
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 maintain your desired indoor temperature. FAN  
on indicator is not displayed on LCD.  
Up and Down Buttons  
increase or decrease the desired temperature setting.  
FAN Button  
Setting mode operation  
chooses between CONTINUOUS FAN and AUTO FAN operation.  
MODE Button  
1. Press the MODE button.  
2. On the LCD readout, the words OFF, HEAT, COOL, and  
AUTO will rotate as the MODE button is pressed.  
If you have a heat pump, the LCD readout will show OFF,  
HEAT, COOL, AUTO, and EMERGENCY HEAT  
(EHEAT).  
selects between OFF, HEAT, COOL, AUTO, and OFF operation.  
Heat pump thermostat models also include an EMERGENCY  
HEAT mode.  
LOW BATTERY Indicator  
will light when batteries (if installed) need to be replaced.  
SERVICE FILTER Indicator  
NOTE: In AUTO mode, your system will heat OR cool as needed  
to reach your desired temperature. AUTO mode may be disabled.  
lets you know it is time to clean or replace your system’s air filter.  
 
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.  
NOTE: This indicator does not reflect a problem with your  
system.  
You have a system error message...  
Service filter feature  
The temperature sensor failure indicator sends a “----” reading to the  
LCD display. This means your thermostat’s temperature sensor is  
no longer able to measure temperatures. You will need to contact  
your dealer to repair the problem.  
Your thermostat reminds you when it’s time to change or clean  
your filter by displaying the SERVICE FILTER indicator.  
1. Press the RESET FILTER button after you have changed or  
cleaned your filter to restart the timer.  
An E2 reading on the LCD display means there is not enough  
voltage for the system to operate. Contact your dealer for further  
information.  
If the outdoor air temperature sensor is absent, the outdoor  
temperature reading will be “----”.  
The batteries are low...  
If the batteries are low, the display will indicate a low battery signal  
on the thermostat. Replace the batteries with two AA alkaline  
batteries.  
NOTE: If the product is hard--wired by the installer, the batteries  
will never have to be replaced.  
A08149  
COMMON TERMS  
Fig. 1 -- Battery Change  
Auxiliary Heat  
Most heat pump systems require a supplemental heating source,  
called auxiliary heat, to maintain your comfort when outdoor  
temperatures fall significantly. Your thermostat lets you know  
when your home is being warmed with supplemental heat.  
Battery change out  
If the installation requires the usage of batteries, the batteries will  
require replacement every 12 months.  
1. Grasp the front housing of the thermostat along the left side.  
Service Filter  
2. Carefully pull the front housing away from the back mount-  
ing base.  
Your system’s air filter will require regular cleaning to reduce the  
dirt and dust in the system and your indoor air. The SERVICE  
FILTER indicator lets you know when it’s time to clean the filter.  
3. Find the two AA batteries along the bottom in back of the  
front housing.  
4. Remove the batteries from the back of the front housing.  
Fan  
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.  
5. Install two new AA Alkaline batteries following the + / --  
polarity markings.  
6. Carefully align the front housing with the plastic guides on  
the right side of the back mounting base.  
Mode  
7. Carefully swing the left towards the back mounting base  
until it snaps into place.  
NOTE: If installation is hard--wired, batteries are not required or  
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).  
will not need replacement.  
Reset Filter  
AUTO CHANGEOVER  
The reset filter function turns off the SERVICE FILTER indicator  
and restarts the system. Press the RESET FILTER button after  
you’ve cleaned and replaced the system’s air filter.  
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 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  
system do the rest!  
Set Point  
The heating and cooling 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 pressing either the UP or DOWN  
button. While the SET TEMP indicator is lit, press the MODE  
button to display the desired temperature set points for the other  
mode.  
NOTE: If auto changeover is not necessary in your area of the  
country, your installer may disable the AUTO mode feature.  
Temperature Sensor  
WHAT IF...  
The AUXILIARY HEAT indicator is displayed...  
The temperature sensor measures the current indoor or outdoor  
temperatures which are displayed on the thermostat.  
The AUX HEAT indicator appears on the heat pump version of the  
thermostat only. It is displayed when your system is operating on  
auxiliary heat.  
Up and Down Buttons  
These buttons are used to set your desired temperature set points.  
This thermostat includes a five--year limited warranty. For detailed  
warranty information, please refer to the All Product Limited  
Warranty Card included in your information packet. This  
thermostat is also eligible for manufacturer’s extended system  
warranties. Ask your dealer for details on extended warranties for  
longer--term protection.  
NOTE: This indicator does not reflect a problem with your  
system.  
The SERVICE FILTER indicator is displayed...  
The SERVICE FILTER indicator tells you when to clean or replace  
your air filter. Press the RESET FILTER button after cleaning or  
replacing the filter to turn off the indicator and reset the system.  
C a t a l o g N o : T C S N A C --- 0 1 S I  
Copyright 2008 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231  
Printed in China  
Edition Date: 03/08  
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.  
Replaces: NEW  
2
 

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