Manual Dimplex SIK 8TES (page 23 of 72) (English, German, French)

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www.gdts.one 452231.66.34 · FD 9912 EN-3

SIK 6TES - SIK 14TES English

1.4 Energy-Efficient Use of the Heat

Pump

By operating this heat pump you are helping to protect our en-

vironment. Both the heating system and the heat source must

be properly designed and dimensioned to ensure efficient op-

eration. It is particularly important to keep water flow tempera-

tures as low as possible. All connected energy consumers

should therefore be suitable for low flow temperatures. Raising

the heating water temperature by 1 K corresponds to an in-

crease in energy consumption of approx.

2.5 %. Low-temperature heating systems with flow tempera-

tures between 30 °C and 50 °C are particularly well-suited for

energy-efficient operation.

2 Purpose of the Heat Pump

2.1 Application

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

heating of heating water. It can be used in new or previously ex-

isting heating systems. The mixture of water and frost protec-

tion (brine) acts as a heat transfer medium in the heat source

system. Ground probes, ground heat collectors or similar sys-

tems can be used as heat source systems.

2.2 Operating Principle

The heat generated by the sun, wind and rain is stored in the

ground. This heat stored in the ground is collected at a low tem-

perature by the brine circulating in the ground heat collector,

the borehole heat exchanger or a similar system. A circulating

pump then conveys the “heated” brine to the evaporator of the

heat pump. There the heat is given off to the refrigerant in the

refrigerating cycle. This cools the brine so that it can once again

absorb thermal energy in the brine circuit.

The refrigerant is drawn in by the electrically driven compres-

sor, compressed and “pumped” to a higher temperature level.

The electrical power needed to run the compressor is not lost in

this process. Most of it is absorbed by the refrigerant.

The refrigerant subsequently passes through the liquifier where

it transfers its thermal energy to the heating water. Depending

on the set operating point (thermostat setting), the heating

water is thus heated up to a max. of 58 °C.

3Basic Device

The basic device consists of a ready-to-use heat pump for in-

door installation in a compact design. In addition to the control

panel with integral heat pump manager, the device is already

equipped with all of the most important components of the

heating circuit and the brine circuit:

Expansion vessel

Circulating pumps

Pressure relief valves

Pressure gauge

Overflow valve (heating circuit)

The refrigeration circuit is "hermetically sealed" and contains

the fluorinated refrigerant R410A included in the Kyoto proto-

col. Information on the GWP value and CO2 equivalent of the

refrigerant can be found in the chapter Device information. The

refrigerant is CFC-free, non-ozone depleting and non-combus-

tible.

All components required for the operation of the heat pump are

located on the control panel. The supply for the load current

and the control voltage must be installed by the customer.

The customer must provide both the heat source system and

the brine circuit manifold.

1) Control panel

2) Circulating pumps

3) Liquifier

4) Compressor

5) Evaporator

6) Expansion vessel

3456

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Dimplex SIK 8TES Manual

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