Owner’s Guide
Guide du propriétaire
Guía para el usuario
TH115-AF-GA / TH115-AF-GB
Programmable thermostat
Thermostat programmable
Termostato programable
400-115-051-B
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TH115-AF-GA / TH115-AF-GB
Table of contents
Overview |
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Before you start.................................................. |
2 |
About your thermostat........................................ |
3 |
Controls.............................................................. |
4 |
Display ............................................................... |
5 |
Installation |
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Installing the thermostat ..................................... |
6 |
Wiring diagrams ................................................. |
7 |
Connecting the floor sensor / remote control ..... |
8 |
Setting the configuration switches...................... |
9 |
Setup |
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Time and day.................................................... |
10 |
Daylight Saving Time ....................................... |
11 |
Floor temperature limits.................................... |
12 |
Preset temperatures......................................... |
13 |
Default schedule .............................................. |
14 |
Modifying the schedule .................................... |
15 |
Operation |
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Running the schedule (Automatic mode) ......... |
16 |
Temporary override of schedule....................... |
16 |
Permanent override (Manual mode) ............... |
17 |
Before going on vacation (Vacation mode) ...... |
17 |
Ground fault protection (GFCI)......................... |
18 |
Appendices |
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Error messages................................................ |
20 |
Technical specifications.................................... |
21 |
Customer assistance........................................ |
22 |
Warranty........................................................... |
23 |
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Owner’s Guide
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Before you start
Read the entire document
CAUTION:
•Installation must be carried out by a certified electrician and must comply with national and local electrical codes.
•Use this thermostat for resistive loads only.
•Do NOT install the thermostat in an area where it can be exposed to water or rain.
•To prevent severe shock or electrocution, always turn the power Off at the service panel before working with wiring.
•Install the thermostat onto an electrical box.
•Use special CO/ALR solderless connectors if you connect the thermostat to aluminum wires.
•Keep the thermostat's top and bottom air vents (openings) clean and unobstructed at all times.
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TH115-AF-GA / TH115-AF-GB
About your thermostat
The TH115 programmable thermostat has three temperature control modes:
A mode: controls the ambient air temperature
F mode: controls the floor temperature using an external temperature sensor
AF mode: controls the ambient air temperature
maintains the floor temperature within desired limits using an external temperature sensor
See page 9 on how to change the temperature control mode setting.
Supplied Parts
•One (1) thermostat
•Two (2) mounting screws
•Four (4) solderless connectors for copper wires
•One (1) floor sensor
•One (1) flat-tip screwdriver
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Owner’s Guide
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Controls
On/Off switch* |
TEST light/button for ground |
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fault protection (see page 18) |
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Day button |
Preset temperature buttons |
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Hour button |
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(see page 13) |
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Minutes button |
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Program button |
Backlight button** |
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Program clear button |
Temperature adjustment buttons** |
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Mode selection / program exit |
*Place at Off to cut power to the heater (e.g., in the summer). This will not affect the time and temperature settings.
**When the backlight button or either of the 
buttons is pressed, the display illuminates for 12 seconds.
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TH115-AF-GA / TH115-AF-GB
Display
Time
Day 
Appears when the setpoint temperature is displayed*
Operation mode icon
(see pages 16 & 17) 
Number of flames varies according to heating intensity
Period (see page 14) 
Temperature*
Preset temperature icon (see page 13)
Temperature control mode (see pages 3 & 9)
Ground fault indicator (see page 18)
* The thermostat normally displays the actual (measured) temperature. To view the setpoint temperature, briefly press either of the 
buttons. The setpoint will appear for 5 seconds. To change the setpoint temperature, press one of the 
buttons until the desired temperature is displayed. To scroll faster, press and hold the button.
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Owner’s Guide
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Installing the thermostat |
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n Turn the heating system off at the main electrical panel. |
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o Loosen the bottom screw and remove the thermostat faceplate from its |
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wallplate. (The screw cannot be completely removed.) |
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p Connect the thermostat to the load and to the power supply (see page 7). |
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q Connect the floor sensor (see page 8). |
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r If you wish to connect a remote control device, see page 8. |
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s Install the wallplate to the electrical box using the provided screws. |
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t Set the configuration switches on the back of the faceplate (see page 9). |
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u Install the faceplate back on the wall plate and tighten the screw. |
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v Apply power to the heating system. |
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w Test the ground fault protection (see page 19). |
Faceplate
Wallplate
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TH115-AF-GA / TH115-AF-GB
Wiring diagram
NOTE: Connect the wires using the provided solderless connectors for copper wires.
240 V |
Power |
120 V |
Power |
supply |
supply |
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Black |
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Black |
Red |
Red |
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Red White |
Black |
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Black |
Black |
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Black |
Black |
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Black |
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Red |
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White |
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Red |
Load |
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Red |
Load |
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Owner’s Guide
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Connecting the floor sensor / remote control
n Insert the floor sensor cable through one of the two openings on the wallplate and connect the sensor wires to terminals 1 and 2 (no polarity).
• The sensor cable must not come in contact with the electrical wires and must be routed outside the electrical box and follow the wall down to the floor.
• Position the sensor cable such that it does not come in contact with the floor heating wires. The sensor must be centered between two floor heating wires for best temperature control.
• Do NOT staple the sensor head (the plastic end) to the floor. Doing so might damage the sensor. Any damage might not be noticeable during testing but can become apparent several days later.
o If you wish to connect a remote control device (see page 17), insert the wires (use 18to 22-gauge flexible wires) through one of the two openings on the wallplate and connect them to terminals 2 and 3 (no polarity).
Floor temperature sensor
Remote control device
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TH115-AF-GA / TH115-AF-GB
Set the configuration switches
Configuration switches are on the back of the faceplate.
# |
Configurations |
Up |
Down |
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1 |
Display format |
°F / 12 h |
°C / 24 h |
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2 |
Early Start1 |
Enable |
Disable |
3 |
Temperature control mode2 |
F |
AF |
1.Early Start is used in Automatic mode only. When Early Start is enabled (on), the thermostat determines when to start heating so the Comfort temperature is attained at the beginning of periods 1 and 3. When Early Start is disabled (off), heating starts only at the beginning of periods 1 and 3; thus there is a delay before the Comfort temperature is reached.
2.See page 3. To select the F Mode, place the switch in the F position. To select the AF Mode, place the switch in the AF position and ensure that the temperature sensor is connected to the thermostat. To select the A Mode, place the switch in the AF position and ensure that the remote temperature sensor is NOT connected to the thermostat.
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Time and day
To set the clock and the day:
n Press the Hour button to set the hour. o Press the Min button to set the minutes. p Press the Day button to set the day.
q Press the Mode/Ret button to return the thermostat to normal display.
NOTE: The thermostat will automatically return to normal display if no button is pressed for 60 seconds.
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TH115-AF-GA / TH115-AF-GB
Daylight Saving Time
When the Daylight Saving Time function is enabled (On), the thermostat automatically switches to Daylight Saving Time on the second Sunday of March and to normal time on the first Sunday of November.
NOTE: The Daylight Saving Time function is disabled (default setting) when the clock loses its setting.
To set the Daylight Saving Time function and to set the date:
n Press the Day button (3 seconds) until DLS appears on the screen.
o Press either of the 
buttons to toggle between On (enabled) and Off (disabled). p Press the Day button briefly. The year setting is displayed.
q Press either of the 
buttons to set the current year.
r Press the Day button briefly. The month setting is displayed. s Press either of the 
buttons to set the current month. t Press the Day button briefly. The date setting is displayed. u Press either of the 
buttons to set the current date.
v Press the Mode/Ret button to return the thermostat to normal display.
NOTE: The thermostat will automatically return to normal display if no button is pressed for 60 seconds.
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Floor temperature limits (AF mode only)
WARNING: To avoid damaging your floor, follow your floor supplier’s recommendations regarding floor temperature limits.
The minimum and maximum floor temperature limits are 5.0°C (41°F) and 28.0°C (82°F) by default. To modify these limits, proceed as follows:
nSwitch the thermostat to Off.
o Press and hold the 
button.
pSwitch the thermostat back to On.
qRelease the 
button when the minimum temperature limit (FL:LO) appears.
r Set the minimum temperature limit using the 
buttons.
s Press the 
button to display the maximum temperature limit (FL:HI).
tSet the maximum temperature limit using the 
buttons.
uPress Mode/Ret to return the thermostat to normal display.
NOTE: The thermostat will automatically return to normal display if no button is pressed for 60 seconds.
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TH115-AF-GA / TH115-AF-GB
Preset temperatures
The thermostat has 3 preset temperatures. Their default settings are shown in the following table.
Preset temperature |
Intended use |
Icon |
A/AF modes |
F mode |
Comfort |
When at home |
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21.0°C (70°F) |
28.0°C (82°F) |
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Economy |
When asleep or away from home |
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17.0°C (63°F) |
20.0°C (68°F) |
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Vacation |
During prolonged absence |
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10.0°C (50°F) |
10.0°C (50°F) |
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To use a preset temperature:
Briefly press the appropriate preset temperature button ( 
, 
or 
). The preset temperature will become the current setpoint and its icon will appear on the screen.
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To modify a preset temperature:
nPress one of the 
buttons to display the desired temperature.
oPress and hold the appropriate preset temperature button ( 
, 
or 
) until its icon is displayed.
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Owner’s Guide
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Default schedule
The schedule consists of 4 periods per day, which represents a typical work day. The Comfort ( 
) preset temperature is automatically used in Periods 1 and 3 and the Economy (
) preset temperature in Periods 2 and 4. You can program the thermostat to skip (cancel) the periods that do not apply to your situation. For example, you can skip periods 2 and 3 for the weekend.
NOTE: If you wish to use only 2 periods, use the following combinations: “1 and 4” or “2 and 3”. Early Start (see page 9) will not work with any other combinations.
You can have a different program every day; i.e., each period can start at a different time every day. The thermostat has been programmed with the following schedule.
Period Description |
Setting |
MO |
TU |
WE |
TH |
FR |
SA |
SU |
Wake |
Comfort |
6:00 |
6:00 |
6:00 |
6:00 |
6:00 |
6:00 |
6:00 |
Leave |
Economy |
8:30 |
8:30 |
8:30 |
8:30 |
8:30 |
--:-- |
--:-- |
Return |
Comfort |
17:00 |
17:00 |
17:00 |
17:00 |
17:00 |
--:-- |
--:-- |
Sleep |
Economy |
23:00 |
23:00 |
23:00 |
23:00 |
23:00 |
23:00 |
23:00 |
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TH115-AF-GA / TH115-AF-GB
Modifying the schedule
n Press Pgm. Period 1 for Monday is displayed.
o To program another period, press Pgm to display that period.
pTo program another day, press Day to display that day (hold for 3 seconds to select the entire week).
qPress Hour and Min to set the period start time, or press Clear to skip (cancel) the period (--:-- will be displayed).
r Repeat steps 2 to 4 to program another period.
s Press Mode/Ret to return the thermostat to normal display.
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NOTE: The thermostat will automatically return to normal display if no button is pressed for 60 seconds.
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Owner’s Guide
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Running the schedule (Automatic mode)
In Automatic mode, the thermostat follows the programmed schedule (see page 14). To place the thermostat in this mode, press Mode/Ret until 
is displayed.
Temporary override of schedule
If you modify the setpoint temperature (by pressing the 
, 
or 
button) when the thermostat is in Automatic mode, the new temperature will be used until the beginning of the next period. 
flashes during the temporary override. You can cancel the temporary override by pressing Mode/Ret.
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TH115-AF-GA / TH115-AF-GB
Permanent override of schedule (Manual mode)
To place the thermostat in Manual mode, press Mode/Ret to display 
on the screen. In this mode, the thermostat does not follow the programmed schedule. Press the 
, 
or 
button to set the temperature.
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When you go on vacation (Vacation mode)
In this mode, the thermostat uses the vacation preset temperature (see page 13). There are two ways to place the thermostat in Vacation mode:
Press the 
button on the thermostat. When the Vacation mode is activated this way, the 
icon appears on the screen without flashing.
From any remote control device equipped with a dry contact. When the contact closes, the thermostat is placed in Vacation mode and the 
icon flashes on the screen. All buttons on the thermostat are locked. When the contact opens, the thermostat returns to the previous mode.
NOTE: When the Vacation mode is activated from a remote control device, it can only be deactivated using the device.
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Owner’s Guide
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Ground fault protection (GFCI)
This ground fault protection thermostat is different from conventional thermostats. In the event of a ground fault, the ground fault protection mechanism on the thermostat will trip and quickly stop the flow of electricity to prevent serious injury.
Definition of a ground fault
Instead of following its normal safe path, electricity passes through a person’s body to reach the ground. For example, a defective floor heating mat can cause a ground fault.
A ground fault protection thermostat does not protect against circuit overloads, short circuits, or electrical shocks. For example, you can still receive an electrical shock if you touch bare wires while standing on a non-conducting surface such as a wood floor.
Ground fault protection reset
When the ground fault protection mechanism trips, the TEST light is On (red). To reset the ground fault protection, switch the thermostat to Off and back to On. The TEST light will turn off.
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TH115-AF-GA / TH115-AF-GB
Testing the ground fault protection
To ensure the ground fault protection is always in working order, test it once the thermostat is installed and on a monthly basis thereafter.
n Increase the setpoint temperature above the measured temperature in order |
TEST button/light |
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to activate the heating system. |
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Press the TEST button. |
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•If the TEST light does NOT turn on, the test has failed. Cut power to the heating system at the main electrical panel, have an electrician verify the installation and, if necessary, replace the thermostat.
•If the TEST light turns on, continue the test. p Switch the thermostat to Off then back to On.
•If the TEST light turns off, the test has passed. Set the thermostat back to the desired temperature. The test is now completed.
•If the TEST light remains on, the test has failed. Continue with the rest of the procedure. q Switch the circuit breaker (at the service panel) of the heating system to off then back to on.
r Repeat the test. If the test fails again, cut power to the heating system at the main electrical panel,
have an electrician verify the installation and, if necessary, replace the thermostat.
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Owner’s Guide
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Error Messages
The measured temperature is below the display range. Heating is activated.
The measured temperature is above the display range. Heating is deactivated.
Verify the thermostat connection and sensor connection.
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TH115-AF-GA / TH115-AF-GB
Technical Specifications |
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ENGLISH |
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Current |
Power |
(GFCI) |
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Max. load (resistive only) |
Ground Fault |
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Model |
Supply |
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Protection |
Wiring |
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TH115-AF-GA |
120 VAC, 60 Hz |
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1800 W |
5 mA |
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240 VAC, 60 Hz |
15 A |
3600 W |
4 wires, |
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TH115-AF-GB |
120 VAC, 60 Hz |
1800 W |
15 mA |
double pole |
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240 VAC, 60 Hz |
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3600 W |
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Display range: 0°C to 70.0°C (32°F to 158°F)
Ambient setpoint range (A/AF modes): 5.0°C to 30.0°C (40°F - 86°F)
Floor setpoint range (F mode): 5.0°C to 40.0°C (40°F - 104°F) Floor limit range (AF mode): 5.0°C to 40.0°C (40°F - 104°F) Resolution: 0.5°C (1°F)
Heating cycle length: 15 minutes
Data protection: In the event of a power failure, most settings are saved. However the time and Daylight Saving Time must be set if the power failure lasts more than 6 hours. The thermostat will return to the mode that was active prior to the power failure.
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