Clas Ohlson TH810T-UK, TH810T Instruction Manual

Plug-in Thermostat

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Art.no Model

18-2168 TH810T-UK
36-1181 TH810T

Ver. 201107

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Plug-in Thermostat

Art. no 18-2168 Model TH810T-UK
36-1181 TH810T

Please read the entire instruction manual before using the product and save it for future
reference. We reserve the right for any errors in text or images and any necessary changes
made to technical data. If you have any questions regarding technical problems please
contact our customer services.

1. Description

• This thermostat is designed to be used indoors either as a frost guard (to prevent
frost damage) or to regulate air conditioning units and prevent the temperature
from becoming too high.

• Simple to use – preset as a frost guard set to activate at +5 °C. Only needs to be
reprogrammed if it is to be used to regulate an air conditioning unit or if you wish to
alter the activation temperature.

• Max power 3680 W (16 A).

• Easy to change function and activation temperature.

• Measuring range: 5–30 °C.

1. Indicator lamp function:

• Not on: The thermostat is turned off at

the power switch.

• Shines red: The temperature has not

reached the activation temperature and
the socket on the thermostat is turned off.

• Shines green: The temperature has

reached the activation temperature and
the socket on the thermostat is turned on.

2. Ambient temperature (23.8 °C in picture).

3. This symbol is displayed* if the thermostat
is set to activate when the temperature
drops (frost guard).

4. This symbol is displayed* if the thermostat is set to activate when
the temperature rises (heat guard).

5. The set activation temperature is also displayed (+5 °C is preset at the factory).

6. [Reset] Press this button to reset to the factory default settings.

7. [▼] Lower the activation temperature.

8. [▲] Raise the activation temperature.

9. [ ] On/off switch: Turn the thermostat on/off.

*Note! The symbol is only displayed when the temperature has reached the set activation
temperature or if you turn the thermostat off using its on/off switch [ ] (remember to turn
the thermostat back on again!).

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2. An example of use

Situation: The plug-in thermostat is to be used as a frost guard and switch on an

electric radiator in a room when the ambient temperature falls below +5 °C.

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1. Plug the thermostat into a wall socket.

2. Plug the electric radiator into the socket on the thermostat and make sure that
the electric radiator is switched on.

3. The display shows the current ambient temperature in °C and the set activation
temperature (factory preset to +5 °C). The plug-in thermostat will now control
the on/off switching of the electric radiator.

• As long as the temperature is normal,
the indicator lamp (1) will be red and the
electric radiator will not be switched on.

• If the ambient temperature drops below
+5 °C, the plug-in thermostat will activate
and turn the electric radiator on.

• (3) will be displayed and the green
indicator lamp (1) will come on for as long
as the electric radiator is switched on.

3. Function

• The plug-in thermostat is designed to be used indoors to control the on/off switching
of heating/cooling appliances in case of rising/falling ambient temperature.

• When sold, the plug-in thermostat is set to work as a frost guard and activate when
the ambient temperature falls below +5 °C. If you wish to alter the activation temperature
(or use the thermostat to activate a cooling unit) the setting must be changed.

• Press the arrow buttons [▲] and [▼] simultaneously to change the display units from °C to °F.

Indicator lamp function

• Not on: The thermostat is turned off at the power switch.

• Shines red: The temperature has not reached the activation temperature and
the socket on the plug-in thermostat is turned off.

• Shines green: The temperature has reached the activation temperature and
the socket on the plug-in thermostat is turned on.

Frost guard mode

If the activation temperature is set to +5 °C and the ambient temperature falls, the plug-in
thermostat will activate when the ambient temperature has fallen below and been below +5 °C
for at least ten seconds (the temperature might fall even lower before the thermostat activates).

The plug-in thermostat will be activated until the ambient temperature has risen
one degree from when it was activated and has been so for at least ten seconds.

This means that the displayed temperature is not always the same as the activation temperature.
Note! The plug-in thermostat has a built-in temperature margin in order to compensate for

normal variations in temperatures such as when a door or window is opened. It can take
between 1 and 3 minutes for the plug-in thermostat to react to a temperature change.

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Note!

• You, the user, bear full responsibility for ensuring that nothing freezes.

• The plug-in thermostat will not work during power cuts or if a fuse has blown.

• The amount of heat needed to prevent freezing depends on a number of factors
such as the size of the room, outdoor temperature, etc.

• The operation of the plug-in thermostat and the temperature of the room should
be checked regularly.

• The operation of the plug-in thermostat also depends on its placement: high/low,
position in the room, etc.

4. Setup

4.1 Activation during falling temperatures (for controlling a heating unit)

1. The default factory setting is for the thermostat
to activate when the temperature falls.

2. The activation temperature is preset to
+5 °C. The arrows [▲] and [▼] can be
used to change the activation temperature.

3. When the ambient temperature falls below
the set activation temperature (3)
is displayed, the green indicator lamp (1)
shines and the socket on the thermostat is active for as long as the ambient
temperature is below the activation temperature.

4. As long as the ambient temperature is higher than the set activation temperature the red
indicator lamp on the plug-in thermostat will shine and its socket will be deactivated.

Note! If the indicator lamp is not on: Press [ ] to switch the plug-in thermostat on.

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4.2 Activation during rising temperatures (for controlling a cooling unit)

1. Press [ ] and [▲] simultaneously for 3 seconds
to change the function of the plug-in thermostat
so that it activates when the temperature is
rising, (4) appears on the display.

2. Press [ ] to switch the plug-in thermostat on
and then use the arrow button [▲] to set your
desired activation temperature (+5 °C is preset).

3. When the set activation temperature has been reached, it will take 3 minutes
before the plug-in thermostat activates at which time (4) is displayed, the green
indicator lamp (1) comes on and the socket on the thermostat is active for as long
as the ambient temperature is higher than the set activation temperature.

4. As long as the ambient temperature is lower than the set activation temperature
the red indicator lamp on the plug-in thermostat will shine and its socket will be
deactivated.

Note! If the indicator lamp is not on: Press [ ] to switch the plug-in thermostat on.

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4.3 Changing the function

1. Plug the thermostat into a wall socket.

2. Hold [ ] and then press [▲] for 3 seconds several times to change to the desired

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function:

• Activation during falling temperatures (frost guard). (3) is shown on the display.

• Activation during rising temperatures (heat guard). (4) is shown on the display.

Note! If the indicator lamp is not on: Press [ ] to switch the plug-in thermostat on.

4.4 Changing the activation temperature

Use the arrow buttons [▲] and [▼] to set the desired activation temperature.
The activation temperature can be set from +5 °C to +30 °C.

5. Disposal

Follow local ordinances when disposing of this product.
If you are unsure how to proceed, contact your local authority.

6. Troubleshooting

“LO” appears on the display
when the battery is low and
needs to be recharged.

Nothing is shown on
the display .

The temperature is not
shown on the display.

The indicator lamp is not on. The plug-in thermostat is not switched on;

Plug the thermostat into a wall socket and let it
recharge for at least 10 hours. The battery should be
continuously connected to a power point to give it an
optimal working life. The rechargeable battery is
built-in and not replaceable.

Plug the thermostat into a wall socket and let it
recharge for at least 10 hours.

Press [Reset] (6) to reset the default factory settings
(frost guard with activation temperature +5 °C).

press [ ] to switch it on.

7. Specifications

Measuring range 5–30 °C
Accuracy ± 1 °C
Voltage 230 V AC, 50/60 Hz
Max power 3680 W (16 A)
Current draw 21 mA
Additional information Intended for indoor use. Safety shuttered and earthed.

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