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PURPOSE OF HEAT PUMP
SCOPE OF DELIVERY
PURPOSE OF THE HEAT
PUMP
2.1 Application
The brine-to-water heat pump is designed for use
in existing or newly built heating systems. Brine is
used as the heat carrier in the heat source system.
Ground coils, ground collectors or similar systems
can be used as the heat source.
2.2 Principle of Operation
The heat generated by the sun, wind and rain is
stored in the ground. This heat stored in the ground
is collected at low temperature by the brine circulating
in the ground collector, ground coil or similar device.
A circulating pump then conveys the warmed brine
to the evaporator of the heat pump. There, the heat
is given off to the refrigerant in the refrigeration cycle.
When so doing, the brine cools so that it can again
take up heat energy in the brine circuit.
The refrigerant, however, is drawn in by the electrically
driven compressor, 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 trans-
ferred to the refrigerant as well.
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 55 °C.
2
SCOPE OF DELIVERY
3.1 Baseline Unit
The baseline unit consists of a heat pump, ready
for connection, for indoor installation, complete with
sheet metal cabinet, control box and integrated
controller. The refrigeration cycle contains the
refrigerant R404A. Refrigerant R404A is CFC-free,
non-ozone depleting and non-combustible.
All components required for the operation of the heat
pump are located in the control box. A sensor for
the external wall temperature including mounting
hardware as well as a strainer are supplied with
the heat pump. The voltage supply for the load
and control current must be provided by the
customer.
The control wire of the brine pump (to be provided
by the customer) is to be connected to the control
box. When so doing, a motor protecting device is
to be installed, if required.
The collector loops including the brine manifold
must be provided by the customer.
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1) Control 4) Compressor
2) Evaporator 5) Transport securing
devices
3) Condenser 6) Filter drier