Owner’s Guide
Guide du propriétaire
Guía para el usuario
TH115 (120S/240S/240D)
Programmable thermostat
Thermostat programmable
Termostato programable
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TH115 (120S/240S/240D models)
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 |
Appendices |
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Error messages................................................ |
18 |
Technical specifications.................................... |
19 |
Warranty........................................................... |
20 |
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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.
•To prevent severe shock or electrocution, always cut the power at the service panel before working with wiring.
•Use this thermostat for resistive loads only.
•Do NOT install the thermostat in an area where it can be exposed to water or rain.
•Avoid locations where there are air drafts (top of staircase, air outlet), dead air spots (behind a door), direct sunlight or concealed chimney or stove pipes (except for floor heating systems).
•For a new installation, choose a location about 1.5 m (5 ft.) above the floor.
•Install the thermostat on an inside wall facing the heating system (except for floor heating systems).
•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 (120S/240S/240D models)
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 |
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• |
One (1) thermostat |
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One (1) floor sensor * |
• |
Two (2) mounting screws |
• |
One (1) flat-tip screwdriver * |
•Four (4) solderless connectors for copper wires
*Select models only; required for floor heating applications only.
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Controls
On/Off or On/Standby
switch*
Day button
Hour button
Minutes button
Program button
Program clear button
Mode selection / program exit
Preset temperature buttons |
(see page 13) |
Backlight button** |
Temperature adjustment buttons**
*Place at Off/Standby 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 (120S/240S/240D models)
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)
* 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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Installing the thermostat |
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Turn the heating system off at the main electrical panel. |
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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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Connect the thermostat to the load and to the power supply (see page 7). |
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If the thermostat will be used in F or AF Mode (see page 9), connect the |
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floor sensor (see page 8). |
WARNING: For floor heating applications, you must install a separate ground protection device at the main electrical panel or use a thermostat with built-in ground protection device.
If you wish to connect a remote control device, see page 8.
Install the wallplate to the electrical box using the provided screws.
Set the configuration switches on the back of the faceplate (see page 9).
Install the faceplate back on the wall plate and tighten the screw.
Apply power to the heating system at the main electrical panel.
Faceplate
Wallplate
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TH115 (120S/240S/240D models)
Wiring diagram
NOTE: Connect the wires using the provided solderless connectors for copper wires.
120S / 240D models |
240S model |
Power |
Power |
Black |
Red |
White (120S) |
Load |
Black |
Load |
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Red (240D) |
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Connecting the floor sensor / remote control
Insert the floor sensor cable through one of the two openings on the wallplate and connect the sensor wires to terminals 3 and 4 (no polarity).
• The sensor wires 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.
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 1 and 2 (no polarity).
Remote
control Floor device temperature
sensor
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TH115 (120S/240S/240D models)
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:
Press the Hour button to set the hour. Press the Min button to set the minutes. Press the Day button to set the day.
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 (120S/240S/240D models)
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:
Press the Day button (3 seconds) until DLS appears on the screen.
Press either of the 
buttons to toggle between On (enabled) and Off (disabled). Press the Day button briefly. The year setting is displayed.
Press either of the 
buttons to set the current year.
Press the Day button briefly. The month setting is displayed. Press either of the 
buttons to set the current month. Press the Day button briefly. The date setting is displayed. Press either of the 
buttons to set the current date.
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: Switch the thermostat to Off.
Press and hold the 
button.
Switch the thermostat back to On.
Release the 
button when the minimum temperature limit (FL:LO) appears.
Set the minimum temperature limit using the 
buttons.
Press the 
button to display the maximum temperature limit (FL:HI). Set the maximum temperature limit using the 
buttons.
Press 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 (120S/240S/240D models)
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 |
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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.
To modify a preset temperature:
Press one of the 
buttons to display the desired temperature.
Press and hold the appropriate preset temperature button ( 
, 
or 
) until its icon is displayed.
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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 AM |
6:00 AM |
6:00 AM |
6:00 AM |
6:00 AM |
6:00 AM |
6:00 AM |
Leave |
Economy |
8:30 AM |
8:30 AM |
8:30 AM |
8:30 AM |
8:30 AM |
--:-- |
--:-- |
Return |
Comfort |
5:00 PM |
5:00 PM |
5:00 PM |
5:00 PM |
5:00 PM |
--:-- |
--:-- |
Sleep |
Economy |
11:00 PM |
11:00 PM |
11:00 PM |
11:00 PM |
11:00 PM |
11:00 PM |
11:00 PM |
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TH115 (120S/240S/240D models)
Modifying the schedule
Press Pgm. Period 1 for Monday is displayed.
To program another period, press Pgm to display that period.
To program another day, press Day to display that day (hold for 3 seconds to select the entire week).
Press Hour and Min to set the period start time, or press Clear to skip (cancel) the period (--:-- will be displayed).
Repeat steps 2 to 4 to program another period.
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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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 (120S/240S/240D models)
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 (see page 8). 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 preceding 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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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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