Owner’s Guide
TH114-A/AF-120S/240S/240D z v

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 the 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 the 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.

About your thermostat

The TH114 non-programmable thermostat has three temperature control modes:

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 *

*Select models only; required for floor heating applications only.

Controls and display

Temperature Display and Setting
The thermostat usually displays the room temperature. To view the set (desired) temperature, press either of the buttons once. The set temperature is displayed for 5 seconds.
To set a new temperature, press one of the buttons repeatedly until the desired temperature is displayed. To scroll faster, press and hold the button.
Backlight
The display illuminates for 5 seconds when the backlight button is pressed.
When either of the buttons is pressed, the display illuminates for 10 seconds. The set-point temperature appears for the first 5 seconds, then the current temperature is displayed.
On/Off or On/Standby Switch
You can set the thermostat to Off or Standby to cut power to the heating system when it is not in use (e.g. in summer). The thermostat screen becomes blank but the settings are saved.

Installing the thermostat

• Turn the heating system off at the main electrical panel.

• Loosen the bottom screw and remove the thermostat faceplate from its wallplate. (The screw cannot be completely removed.)

• Connect the thermostat to the load and to the power supply (see page 7).
  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 the thermostat will be used in F or AF mode (see page 9), connect the floor sensor (see page 8).

• 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. If there is a sticker on the screen, peel it off.

• Apply power to the heating system at the main electrical panel.

Wiring diagrams

NOTE: Connect the wires using the provided solderless connectors for copper wires.

Connecting the floor temperature sensor / remote control system

1. 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.

2. If you wish to connect a remote control device (see page 11), insert the wires (use 18- to 22-gauge flexible wires) through one of the two openings on the wallplate and connect them to terminals 1 and 2 (no polarity).

Setting the configuration switches

Configuration switches are on the back of the faceplate.

| Configurations| Up| Down

---|---|---|---
S1| Displayed temperature unit| °F| °C
S2| Temperature control mode *| F| AF

*See page 3 for the definition of each mode.
-T o select the F Mode, connect the floor temperature sensor (see page 8) and place the switch in the F position.
-To select the AF Mode, proceed as follows: Connect the floor temperature sensor (see page 8). Place the switch in the F position. If the thermostat displays Er, the sensor is improperly connected or damaged. If the thermostat displays a temperature reading, place the switch in the AF position.
-To select the A Mode, place the switch in the AF position but do NOT connect the floor temperature sensor.

Floor temperature limits (AF mode only)

The minimum and maximum floor temperature limits are available only if the temperature control mode is AF (see page 9).
If the floor temperature drops below the minimum limit or rises above the maximum limit, the thermostat will turn heating On or Off respectively, regardless of the ambient temperature, to maintain the floor temperature within the set limits.
NOTE: The desired ambient temperature might not be attainable if the maximum floor temperature is set too low. The minimum and maximum floor temperature limits are factory-set at 10 °C (50 °F) and 28 °C (82 °F) respectively. To modify the limits, proceed as follows:
WARNING: To avoid damaging your floor, follow your floor supplier’s recommendations regarding floor temperature limits.

1. Switch the thermostat to Off or Standby.
2. While pressing either button, switch the thermostat back to On to access the floor temperature limit settings.
3. Press the Backlight button briefly to switch between minimum and maximum floor temperature settings.
4. Press the buttons to set the desired limit.
5. Press the Backlight button for 3 seconds to save your modifications. After the data are saved, the thermostat displays the current temperature or “– –”.

NOTE: Your modifications are automatically saved if no button is pressed for 60 seconds.

Unoccupied Mode
The Unoccupied Mode can be activated if you have connected the thermostat to a remote control device equipped with a dry contact (see page 8). When the contact closes, the Unoccupied Mode is activated and appears on the screen. In this mode, the thermostat lowers its setpoint by 3.5 °C (7 °F) and all temperature adjustments are blocked except for a temporary bypass.

Temporary Bypass
You can temporarily bypass the Unoccupied Mode by pressing the backlight button. During the bypass, flashes. The bypass is automatically canceled after 2 hours or if the backlight button is pressed again.

Error Messages
The measured temperature is below the display range. Heating is activated.
The measured temperature is above the display range. The heating is deactivated.
Verify the thermostat and sensor connections. The heating is deactivated.

Technical Specifications

Model| Supply| Maximum current| Maximum wattage| Wiring
---|---|---|---|---
120S| 120 VAC, 50/60Hz| 16.7 A| 2000 W| 4 wires / single pole
240S| 240 VAC, 50/60Hz
208 VAC, 50/60Hz| 16.7 A| 4000 W
3470 W| 4 wires / single pole
240D| 240 VAC, 50/60Hz
208 VAC, 50/60Hz| 15 A| 3600 W
3120 W| 4 wires / double pole

Setpoint range – F mode: 5 °C to 40 °C (40 °F to 104 °F) – A/AF mode: 5 °C to 30 °C (40 °F to 86 °F)
Floor limit range- AF mode: 5 °C to 40 °C (40 °F – 104 °F)
Display range – F mode: 0 °C to 60 °C (32 °F to 140 °F) – AF mode: 0 °C to 50 °C (32 °F to 122 °F)

Resolution: 0.5 °C (1 °F)
Heating cycle length: 15 minutes
Data protection: All settings are saved during a power failure.

Warranty

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)Customer Care will make the determination whether the product should be returned 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 that 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 RESIDE 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.

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References

• Smart Home Products and Systems | Resideo
• Smart Home Solutions in EMEA | Resideo

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