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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 |
Supplied Parts
* Select models only; required for floor heating applications only.
* 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.
* 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.
NOTE: Connect the wires using the provided solderless connectors for copper wires.
120S / 240D models
240S model
Configuration switches are on the back of the faceplate.
# | Configurations | Up | Down |
1 | Display format | °F / 12 h | °C / 24 h |
2 | Early Start1 | Enable | Disable |
3 | Temperature control mode2 | F | AF |
To set the clock and the day:
NOTE: The thermostat will automatically return to normal display if no button is pressed for 60 seconds.
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:
NOTE: The thermostat will automatically return to normal display if no button is pressed for 60 seconds.
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:
NOTE: The thermostat will automatically return to normal display if no button is pressed for 60 seconds.
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 | 21.0°C (70°F) | 28.0°C (82°F) | |
Economy | When asleep or away from home | 17.0°C (63°F) | 20.0°C (68°F) | |
Vacation | During prolonged absence | 10.0°C (50°F) | 10.0°C (50°F) |
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:
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 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 |
NOTE: The thermostat will automatically return to normal display if no button is pressed for 60 seconds.
In Automatic mode, the thermostat follows the programmed schedule. To place the thermostat in this mode, press Mode/Ret until is displayed.
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.
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.
In this mode, the thermostat uses the vacation preset temperature. 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 preceding mode.
NOTE: When the Vacation mode is activated from a remote control device, it can only be deactivated using the device.
: 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.
Model | Supply | Maximum current | Maximum wattage | Wiring |
120S | 120 VAC, 50Hz/60Hz | 16.7 A | 2000 W | 4 wires / single pole |
240S |
240 VAC, 50Hz/60Hz 208 VAC, 50Hz/60Hz |
16.7 A |
4000 W 3470 W |
4 wires / single pole |
240D |
240 VAC, 50Hz/60Hz 208 VAC, 50Hz/60Hz |
15 A |
3600 W 3120 W |
4 wires / double pole |
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.
Resideo warrants this product, excluding battery, to be free from defects in workmanship or materials, under normal use and service, for a period of three (3) years from the date of first purchase by the original purchaser. If at any time during the warranty period the product is determined to be defective due to workmanship or materials, Resideo shall repair or replace it (at Resideo's option).
If the product is defective,
(i) return it, with a bill of sale or other dated proof of purchase, to the place from which you purchased it; or
(ii) call Resideo Customer Care at 1-800-468-1502. Customer Care will make the determination whether the product should bereturned to the following address: Resideo Return Goods, 1985 Douglas Dr. N., Golden Valley, MN 55422, or whether a replacement product can be sent to you.
This warranty does not cover removal or reinstallation costs. This warranty shall not apply if it is shown by Resideo that the defect was caused by damage which occurred while the product was in the possession of a consumer.
Resideo's sole responsibility shall be to repair or replace the product within the terms stated above. RESIDEO SHALL NOT BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND, INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER FAILURE OF THIS PRODUCT.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so this limitation may not apply to you.
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY RESIDEO MAKES ON THIS PRODUCT. THE DURATION OF ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, IS HEREBY LIMITED TO THE THREE YEAR DURATION OF THIS WARRANTY. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.
This warranty gives you specific legal rights, and you may have other rights which vary from state to state. If you have any questions concerning this warranty, please write Resideo Customer Care, 1985 Douglas Dr, Golden Valley, MN 55422 or call 1-800-468-1502.
Resideo Technologies, Inc.
1985 Douglas Drive North, Golden Valley, MN 55422
© 2020 Resideo Technologies, Inc. All rights reserved.
The Honeywell Home trademark is used under license from Honeywell International, Inc.
This product is manufactured by Resideo Technologies, Inc. and its affiliates.
Here you can download full pdf version of manual, it may contain additional safety instructions, warranty information, FCC rules, etc.
Download Aube Thermostat TH115-A-120S/U TH115-AF-120S/U Manual
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