Bedienungsanleitung Dimplex LA60S TUR (Seite 5 von 24) (Englisch)

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www.glendimplex.de 452163.66.79-EN · FD 0103 EN-3

LA 60S-TUR English

2 Purpose of the heat pump

2.1 Application

The air-to-water heat pump is to be used exclusively for the

heating and cooling of heating water. It can be used in new or

already-existing heating systems.

The heat pump is suitable for mono-energy and bivalent opera-

tion down to an external temperature of -22 °C.

Proper defrosting of the evaporator is guaranteed by maintain-

ing a heating water return temperature of more than 22 °C dur-

ing continuous operation.

The heat pump is not designed for the increased heat con-

sumption required when a building is being dried out. For this

reason, the additional heat consumption should be met using

special devices provided by the customer. For drying out build-

ings in autumn or winter, we recommend installing a suitable

2nd heat generator (e.g. electric heating element available as an

accessory).

In cooling operation, the heat pump is suitable for air tempera-

tures ranging from +10 °C to + 45 °C.

It can be used for silent and dynamic cooling. The minimum

water temperature is +7 °C.

NOTE

ººººº

The device is not suitable for operation with a frequency

converter.

2.2 Operating principle

Heating

Surrounding air is drawn in by the fan and fed through 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 brought to a higher temperature level by increasing

its pressure with the aid of the electrically driven compressor. It

is then transferred to the heating water via the liquefier (heat

exchanger).

Electrical energy is used to raise the temperature of the heat in

the environment to a higher level. As 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 compressors, the liquefier and the electrical control sys-

tem.

At low ambient temperatures, humidity accumulates on the

evaporator in the form of frost, reducing the transfer of heat.

Uneven accumulation during this process does not indicate a

fault. The evaporator is defrosted automatically by the heat

pump as required. Steam may be emitted from the air outlet de-

pending on the atmospheric conditions.

Cooling

The functions of the evaporator and the liquefier are reversed in

the "Cooling" operating mode.

The heating water transfers its heat to the refrigerant via the liq-

uefier, which is now functioning as an evaporator. The refriger-

ant is brought to a higher temperature level using the compres-

sor. Heat is transferred to the surrounding air via the liquefier

(which, in heating operation, functions as an evaporator).

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