TH115 A/F/AF
User Guide
Programmable Thermostat
n Description
Aube’s TH115 programmable thermostats have 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
On/Standby switch 1 |
Time and day display |
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and GFCI reset 2 |
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Appears when the |
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Temperature display |
setpoint is displayed |
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Day and time |
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Mode display |
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settings |
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Preset temperature |
Percentage of |
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indicator |
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Ground fault indicator 4 |
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heating time 3 |
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Program button |
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Temperature control |
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mode indicator |
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Program |
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Temperature |
clear button |
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preset buttons |
Mode selection / |
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Period display |
program exit |
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Temperature |
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Backlight button |
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adjustment buttons |
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q Clock and Day Setting
n Press the Hour button to set the hour. o Set the Min button to set the minutes. p Set the Day button to set the day.
q Press Mode/Ret to exit.
Daylight Savings Time
The thermostat can automatically re-adjust its clock at Daylight Savings Time changeover. When this function is enabled (On), the thermostat switches to Daylight Savings Time on the second Sunday of March and to normal time on the first Sunday of November.
NOTE: The function is disabled (default setting) when the clock loses its setting.
n Press the Day button (3 seconds) until DLS appears on the screen.
oPress the 
to toggle between On (enabled) and Off (disabled).
p Press the Day button briefly. The year setting is displayed.
q Press the 
to set the current year.
r Press the Day button briefly. The month setting is displayed.
s Press the 
to set the current month.
1Place the switch in Standby to cut power to the heater when not in use (e.g., in the summer). This will not affect the time and temperature settings.
2If your thermostat is installed on a power base equipped with a ground fault protection, to reset the ground fault protection, switch the thermostat to Standby and back to On.
3The thermostat displays the percentage of heating time required to maintain the desired
temperature. For example, 
is displayed when heating is activated 40 percent of the time.
Display |
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% of heating time |
1 to 24% 25 to 49% 50 to 74% 75 to 99% 100% |
4 GFI appears when the ground fault protection has tripped.
o Configuration
Some thermostat configurations can be modified via switches on the back of the faceplate (control module).
Default (factory) settings are inside the gray cells.
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Configurations |
UP |
DN |
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1 |
Display format |
°F / 12 h |
°C / 24 h |
2 |
Early Start a |
Enable |
Disable |
3 |
Temperature control mode b |
F |
AF |
a.Early Start can be used in Automatic mode only. When this function is enabled, the thermostat calculates the optimal time to start heating in order to obtain the desired temperature by the set time. The thermostat re-assesses the start time daily based on the previous day’s results.
b.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 remote 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.
p Installation
nRefer to the installation instructions of the power base.
oInsert the tabs at the top of the control module in the slots at the top of the power base.
pSecure the control module using the captive screw underneath the base.
Control module |
Air vents |
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Air vents
Power base
NOTE: Keep the thermostat's air vents clean and unobstructed at all times.
t Press the Day button briefly. The date setting is displayed.
u Press the 
to set the current date. v Press Mode/Ret to exit.
r Backlight
The display illuminates for 12 seconds when the backlight button is pressed.
When either of the 
buttons is pressed, the display also illuminates for 12 seconds. The setpoint temperature appears for 5 seconds, then the actual (measured) temperature is displayed.
s Temperature Adjustment
6.1Setpoint Temperature
The thermostat normally displays the actual (measured) temperature. To view the setpoint, press one of the 
buttons once. The setpoint will appear for the next 5 seconds.
To change the setpoint, press one of the 
buttons until the desired temperature is displayed. To scroll faster, press and hold the button.
6.2Preset Temperatures
The thermostat has 3 preset temperatures:
Comfort temperature 
Economy temperature 
Vacation temperature 
To use a preset temperature, press the corresponding button. The corresponding icon 
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or 
will be displayed.
The following table shows the intended use and the default setting of each of the preset temperatures.
Icon |
Intended use |
A/AF modes |
F mode |
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Comfort |
21 °C (70 °F) |
28 °C (82 °F) |
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(when at home) |
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Economy |
17 °C (63 °F) |
20 °C (68 °F) |
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(when asleep or away from home) |
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Vacation |
10 °C (50 °F) |
10 °C (50 °F) |
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(during prolonged absence) |
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To store a preset temperature:
n Set the desired temperature using the 
buttons.
oPress and hold the corresponding button until the corresponding icon is displayed.
TH115 A/F/AF |
400-115-003-B |
27/2/07 |
1/2 |
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