Manual Dimplex SI 50TUR (page 23 of 72) (English, German, French)

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www.glendimplex.de 452237.66.55 · FD 0007 EN-3

SI 50 - 70 TUR English

1.3 Legal regulations and directives

This heat pump is designed for use in a domestic environment

according to Article 1, Paragraph 2 k) of EU directive 2006/42/

EU (machinery directive) and is thus subject to the require-

ments of EU directive 2014/35/EU (low-voltage directive). It is

thus also intended for use by non-professionals for heating

shops, offices and other similar working environments, in agri-

cultural establishments and in hotels, guest houses and similar

/ other residential buildings.

This heat pump conforms to all relevant DIN/VDE regulations

and EU directives. For details refer to the EC Declaration of

Conformity in the appendix.

The electrical connection of the heat pump must be performed

according to and conforming with all relevant VDE, EN and IEC

standards. Beyond that, the connection requirements of the

local utility companies have to be observed.

The heat pump is to be connected to the heat source system or

the heating system in accordance with all applicable regula-

tions.

This unit can be used by children aged 8 and over and by per-

sons with limited physical, sensory or mental aptitude or lack of

experience and/or knowledge, providing they are supervised or

have been instructed in the safe use of the unit and understand

the associated potential dangers.

Children must not play with the device. Cleaning and user

maintenance must not be carried out by children without su-

pervision.

CAUTION!

Any work on the heat pump may only be performed by an

authorised and qualified customer service.

CAUTION!

When operating or maintaining this heat pump, the legal

requirements of the country where the heat pump is operated

apply. Depending on the refrigerant quantity, the heat pump

must be inspected for leaks at regular intervals by a certified

technician, and these inspections must be recorded.

More information is available in the chapter Care / Cleaning.

1.4 Energy-Efficient Use of the Heat

Pump

By operating this heat pump you contribute to the protection of

our environment. The heating or cooling system and the heat

source must be properly designed and dimensioned to ensure

efficient operation. In particular, it is important to keep water

flow temperatures as low as possible. All energy consumers

connected should therefore be suitable for low flow tempera-

tures. A 1 K higher heating water temperature corresponds to

an increase in power consumption of approx. 2.5 %. Low-tem-

perature heating systems with flow temperatures between

30 °C and 50 °C are optimally suited for energy-efficient opera-

tion.

2 Purpose of the Heat Pump

2.1 Application

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

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

existing heating systems. A mixture of water and frost protec-

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

system. Borehole heat exchangers, ground heat collectors or

similar systems can be used as the heat source system.

2.2 Operation principle

Heating

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

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

perature by the brine circulating in the ground collector, ground

coil or similar device.

A circulating pump then conveys the warmed brine to the evap-

orator of the heat pump. There, the heat is given off to the re-

frigerant in the refrigeration cycle. When so doing, the brine

cools so that it can again take up heat energy in the brine cir-

cuit.

The refrigerant is drawn in by the electrically driven compres-

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

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

this process, but most of the generated heat is transferred to

the refrigerant.

Subsequently, the refrigerant is passed through the condenser

where it transfers its heat energy to the heating water. Based on

the thermostat setting, the heating water is thus heated to up to

62 °C.

Cooling

The functions of the evaporator and the liquifier are reversed in

the “Cooling” operating mode.

The heating water gives up 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 passes into the brine via the liquifier (evaporator in heating

operation) and consequently into the ground.

2.3 Functional description for

integrated thermal energy

metering

The compressor manufacturer's performance specifications for

different pressure levels are stored in the heat pump software.

Two additional pressure sensors for determining the current

pressure level are installed in the refrigerating circuit, one be-

fore and after the compressor. The current heat output can be

calculated from the compressor data stored in the software and

the current pressure level. The integral for the heat output over

the runtime gives the quantity of thermal energy supplied by

the heat pump, which is displayed separately for heating, do-

mestic hot water preparation and swimming pool water prepa-

ration on the manager's display.

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Dimplex SI 50TUR Manual

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