www.gdts.one
452237.66.54 · FD 9912
EN-3
SI 35TUR
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/
EC (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, agricul-
tural establishments and hotels, guesthouses and other resi-
dential buildings.
This heat pump conforms to all relevant DIN/VDE regulations
and EU directives. Refer to the EC Declaration of Conformity in
the appendix for details.
The heat pump must be connected to the power supply in
compliance with all relevant VDE, EN and IEC standards. Any
further connection requirements stipulated by local utility com-
panies must also 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!
!!
Work on the heat pump must only be performed by
authorised and qualified after-sales service technicians.
ATTENTION!
!!
When operating or maintaining a heat pump, the legal
requirements of the country where the heat pump is operated
apply. Depending on the refrigerant fill quantity, the heat
pump must be inspected for leaks at regular intervals by a
certified technician, and these inspections must be recorded.
More information can be found in the logbook.
1.4 Energy-efficient use of the heat
pump
By operating this heat pump you are helping to protect our en-
vironment. To ensure efficient operation, the heating or cooling
system and the heat source must be properly designed and di-
mensioned. It is particularly important to keep water flow tem-
peratures as low as possible in heating operation. All connected
heat consumers should therefore be suitable for low flow tem-
peratures. Raising the heating water temperature by 1 K corre-
sponds to an increase in electric energy consumption of ap-
prox. 2.5 %. Low-temperature heating systems with flow
temperatures between 30 °C and 50 °C are particularly well-
suited for energy-efficient operation.
2
Intended use of the heat
pump
2.1 Area of 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 Operating principle
Heating
The heat generated by the sun, wind and rain is stored in the
ground. This ground heatis collected at a low temperature by
the brine in the ground heat collector, borehole heat exchanger
or similar.
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 refrigeration circuit. 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 in the
form of thermal energy.
Subsequently, the refrigerant is passed through the liquefier,
where it transfers its heat energy to the heating water. Depend-
ing on the set operating point, the heating water is thus heated
up to max. 62 °C.
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 passes into the brine via the liquefier (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 one 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,
domestic hot water preparation and swimming pool water
preparation on the manager display.
