Child Lock Operation

Everyday Operation

Once the Background level has been set (see Achieving Optimum Comfort Level above), this should not require any further adjustment.

Adjust the Comfort setting as required to suit your comfort needs and occupancy pattern. For a short period of non occupancy the control can be lowered slightly (we recommend by no more than 2 bars) to save energy when the room is unoccupied and increased again when more heat is needed.

Non Occupancy (vacant)

For long periods of non occupancy, reduce the Background and the Comfort to their lowest settings.

It will take 24 hours for room temperature to reach a comfortable level when resetting from Low settings to Normal settings.

To activate the child lock simultaneously depress the +and - buttons for a period of 3 seconds. After this period the child lock is in operation and the LED will illuminate for short period and then revert to the setback setting. The LED beside the key symbol will illuminate while the child lock is in operation.

Once in the locked position, if either of the controls are operated the LED will resume maximum illumination for a short period before reverting back to the setback position.

To deactivate the child lock, depress the buttons simultaneously again for 3 seconds and the buttons will become active.

Safety - Overheat Protection

For your safety, this appliance is fitted with thermal cut-outs. In the event that the product overheats, the cut-outs switch the radiator off automatically. In the event of these safety cut-outs activating please inform the installer or Dimplex Customer Services for advice in order to reset the cut-outs.

Two Zone Wall Mounted Programmer (only applicable if Programmer is fitted to DuoHeat installation)

RX010006 - Pilot Wire, or

RX010007 - Mains Borne Signalling

The programmer has two modes (i) AUTO or (ii) MANUAL

(i)In “Auto” mode, the radiator will change between Comfort and Setback modes (as shown in the table below) depending on your seven day programme. To change the programme settings or temporarily over ride the programme, see the appropriate programmer instructions.

(ii)“Manual” mode will override the auto programme setting. There are four “Manual” mode settings shown in the table below.

Programmer Mode			Temperature Setting	DuoHeat Radiator –
				“Temperature control display setting”
			Comfort Setting (radiator setting). Each
Comfort			Radiator will operate as set in “controls”	Display will remain as shown in Quick Start Guide
			section of Operating Instructions.

	H		Setback will reduce the Comfort setting by	Display will show two red bars less.eg. if “Comfort”
Setback	H		2°C, and will leave the Background	displays 5, “Setback” will display 3 red bars.
			unaffected.

Frost Protect	J		Room temperature will be maintained at	Display will show one red bar.
	J		16°C with Background operating.

			This will completely switch off radiators,
Off			e.g. during the summer heating may not be	Display will show one red bar.
			required.
Note:		It will take 24 hours for room temperature to reach a comfortable level when resetting

from “Setback”, “Frost Protect”, “Off” to “Comfort”.

Duo300i, Duo400i, Duo500i specifications

Dimplex has established itself as a leader in the electric heating market with the introduction of its innovative Duo range, including the Duo300i, Duo400i, and Duo500i models. These electric heaters are designed to offer efficient, stylish, and effective heating solutions for both residential and commercial spaces.

One of the standout features of the Duo series is its advanced infrared technology. The Duo300i, Duo400i, and Duo500i utilize this technology to provide rapid and targeted heating, ensuring that spaces are warmed up quickly and efficiently. By directly heating objects and people in the room rather than the air, these models deliver a more comfortable and energy-efficient heating experience.

The Dimplex Duo300i is the entry-level model in the range, featuring a compact design that makes it ideal for smaller rooms. With a power output of 300 watts, it provides efficient warmth without consuming excessive energy. The exterior of the unit is sleek and modern, allowing it to blend seamlessly into various interior designs.

Moving up the line, the Duo400i offers greater power with a 400-watt output, making it suitable for medium-sized spaces. This model boasts the same infrared technology as the Duo300i, but with enhanced capabilities to heat larger areas more effectively. Its user-friendly thermostat and easy-to-operate control panel allow for precise temperature adjustments, ensuring optimal comfort.

The Duo500i stands as the most powerful option in the series, with a robust 500-watt output. This model is perfect for larger rooms or open spaces where extra heat is needed. Like its smaller counterparts, the Duo500i benefits from a modern aesthetic, making it a stylish addition to any environment. The unit also includes an integrated timer and programmable settings, allowing users to customize their heating schedules based on their needs.

All three models in the Duo series emphasize energy efficiency and safety. Equipped with overheat protection and an anti-tip switch, users can feel secure knowing that they are using a safe heating solution. Additionally, the eco-friendly design of these heaters minimizes carbon footprint, making them a responsible choice for the environmentally conscious consumer.

In summary, the Dimplex Duo300i, Duo400i, and Duo500i deliver advanced infrared heating technology wrapped in modern, stylish designs. Their energy efficiency, user-friendly features, and safety mechanisms set them apart in the electric heater market, offering consumers a range of options tailored to their heating needs. Whether for small, medium, or large spaces, Dimplex’s Duo range provides comfort and warmth with a contemporary touch.

Dimplex Duo300i, Duo400i, Duo500i operating instructions Child Lock Operation

Models: Duo300i Duo400i, Duo500i

Everyday Operation

Non Occupancy (vacant)