Dimplex Duo400i, Duo500i, Duo300i Controls, be left switched ON at ALL times, “Normal” Setting

Your DuoHeat radiator works by providing continual warmth from a carefully balanced combination of “retained” and “radiant” heating. Some energy is taken in by the radiator when electricity tariffs are low and this is supplemented whenever needed by top up heat from a radiant front panel, to ensure room temperatures remain to your preferred level throughout the day.

In order for the radiator to operate effectively both electricity supplies must

be left switched ON at ALL times.

Controls

DuoHeat has two output modes Comfort (Radiant Heat) and Background (Retained Heat). Each needs to be set to the correct level to provide the optimum level of comfort.

For DuoHeat to operate correctly, both electricity supplies must be switched on at all times.

Initial Set Up

When the radiator is switched on red lights will illuminate on the temperature control display located on the top right hand side of the radiator. The radiator will automatically be in Comfort mode.

Depending on your comfort requirements, there are three recommended settings:-

“Low” (e.g. holiday home during period of vacancy) “Normal “ (e.g. average use)

“High” (e.g. sheltered accommodation)

Both the Comfort and Background heat settings need to be set accordingly.

Please note that at high setting the room temperature will be warmer with a corresponding increase in running costs.

“Normal” Setting

This is the factory default setting, however you should check this has not been altered by the installer.

Set the Background setting at the mid point (5th bar). To do this, press the +button until 10 bars are illuminated and continue to hold for a further 7 seconds. Adjust by pressing the + or - buttons.

Flashing Bar

Low		High
	Normal

After 20 seconds, the display will revert to the standard Comfort mode.

Set the Comfort at the mid point (5 bar) by pressing the + or

-buttons to change the number of illuminated bars.

Low		High
	Normal

“Low” Setting

Reduce the Background setting to 1 bar. Reduce the Comfort control to 1 bar.

“High” Setting

Increase the Background setting to between 7 bars. Increase the Comfort control to between 7.

Operate the radiator for 24 hours before making further adjustments to the settings.

Achieving Optimum Comfort Level

If the room is not at the desired temperature in the afternoon /

evening, adjust the Comfort Heat simply by pressing the +or -button to achieve a higher or lower room temperature.

If the morning room temperature is not at the desired level, then adjust the Background heat level by pressing and holding down the + button on the temperature control display until 10 red lights are illuminated, continue to hold the +button for a further 7 seconds and a single red light will flash. Use the +button to increase room temperature and the flashing red light will move to the right. Use the - button to decrease room temperature and the flashing red light will move to the left.

Flashing Bar

After 20 seconds the temperature control will display will return to the Comfort Heat control mode.

It may require a few days fine-tuning to achieve an optimum comfort level. On subsequent days increase or decrease the temperature by one red light until a satisfactory comfort level has been established. Once established the radiator will automatically adjust to suit seasonal changes in temperature. During mild weather background heat may not operate as Comfort Heat will be sufficient.