www.gdts.one
452237.66.56 · FD 9912
EN-3
SI 85 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.
ATTENTION!
!!
Any work on the heat pump may only be performed by an
authorised and qualified customer service.
ATTENTION!
!!
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
60 °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.
