3.1

2Purpose of the Heat Pump

2.1Application

The air-to-water heat pump is designed for use in existing or newly built heating systems.

It is designed exclusively for heating and cooling heating water!

In heating operation, the heat pump is suitable for mono energy and bivalent operation down to an external temperature of -20 °C.

Proper defrosting of the evaporator is guaranteed by maintaining a heating water return flow temperature of more than 18 °C dur- ing continuous operation.

The heat pump is not designed for the increased heat consump- tion required when a building is being dried out. The additional heat consumption should be met using special devices provided by the customer. If a building is to be dried out in autumn or win- ter, we recommend installing an additional heating element (available as an accessory).

In cooling operation the heat pump is suitable for temperatures ranging from +15 °C to +40 °C.

It can be used for silent and dynamic cooling. The minimum water temperature is +7 °C.

ATTENTION!

The device is not suitable for operation with a frequency converter.

2.2Operating Principle

Heating

Surrounding air is drawn in by the ventilator and fed via the evap- orator (heat exchanger). The evaporator cools the air, i.e. it ex- tracts heat from it. This extracted heat is then transferred to the working medium (refrigerant) in the evaporator.

The heat is “pumped” to a higher temperature level by increasing its pressure with the aid of an electrically driven compressor. It is then transferred to the heating water using the liquifier (heat ex- changer).

Electrical energy is used to raise the temperature of the heat in the environment to a higher level. Because the energy extracted from the air is transferred to the heating water, this type of device is called an air-to-water heat pump.

The air-to-water heat pump consists of the main components evaporator, ventilator and expansion valve, as well as the low- noise compressor, liquifier and electrical control system.

At low ambient temperatures, humidity accumulates on the evap- orator in the form of frost reducing the transfer of heat. The evap- orator is defrosted automatically by the heat pump as required. Steam may be emitted from the air outlet depending on the at- mospheric conditions.

Cooling

The functions of the evaporator and the liquifier are reversed in the “Cooling” operating mode.

The heating water transfers its heat to the refrigerant via the liq- uifier which is now functioning as an evaporator. The refrigerant is pumped to a higher temperature level using the compressor. Heat is passed on to the surrounding air via the liquifier (function- ing as an evaporator in heating operation).

3 Scope of Delivery

3.1Basic Device

The heat pump is of compact design and is supplied complete with the components listed below.

R404A is used as the refrigerant.







     

1)Evaporator (heating operation)

2)Check valve

3)Ventilator

4)Switch box

5)Pressure switches

6)Filter dryer

7)Liquifier (heating operation)

8)Expansion valve

9)Compressor

English

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Dimplex LI 11MER manual Purpose of the Heat Pump, Scope of Delivery, Application, Operating Principle, Basic Device
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LI 11MER specifications

The Dimplex LI 11MER is an innovative electric heater designed to provide efficient heating solutions for various indoor spaces. Known for its sleek design and advanced features, the Dimplex LI 11MER is an excellent choice for homeowners and businesses seeking reliability and performance.

One of the main features of the Dimplex LI 11MER is its compact size, making it ideal for small rooms or spaces where traditional heating solutions may be impractical. The slim profile allows it to be installed in tight areas without sacrificing performance. Despite its compact design, the heater delivers an impressive output of 1000 watts, providing sufficient warmth to comfortably heat spaces up to 19 square meters.

The Dimplex LI 11MER employs advanced convection heating technology, which ensures rapid heating and consistent warmth. This technology allows for the unit to heat the air quickly, circulating warm air throughout the room efficiently. As the air rises, it draws cooler air from the bottom, creating a natural convection current that helps maintain a comfortable and even temperature.

Another noteworthy feature is the electronic thermostat, which provides precise temperature control. Users can set their desired temperature, and the thermostat will automatically adjust the heater's output to maintain that temperature. This feature not only enhances comfort but also promotes energy efficiency, as the heater operates only when needed.

Safety is a top priority with the Dimplex LI 11MER. The unit is equipped with a thermal cut-out feature that prevents overheating, ensuring the heater operates safely in any environment. Additionally, the heater is designed with a robust housing that is resistant to damage and wear, providing longevity and reliability in use.

The Dimplex LI 11MER also features a modern, aesthetic design that complements various interior styles, making it a stylish addition to any room. Its quiet operation ensures that it does not disrupt the tranquility of your home or workspace, allowing for undisturbed relaxation or productivity.

Overall, the Dimplex LI 11MER stands out with its combination of compact size, advanced heating technology, precise temperature control, and safety features, making it a top choice for efficient electric heating solutions. Whether for residential or commercial use, this heater is designed to deliver comfort, reliability, and style in one convenient package.
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