ENGLISH
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8.1. CONNECTION DIAGRAM, GEYSIR, GEYSIR
WITH PASSIvE COOLING
8.
BRINE INSTALLATION
Bedrock heat
To use rock as the heat source one or more boreholes is/are drilled
and the brine hose is lowered into it/them. The hole is filled with
water and a fitting with a weight is fastened to the hose before it
is lowered.
Figure 44: Borehole in rock as heat source.
Lake heat
When lake water is used as the heat source one or more brine
coils is/are submerged in the water . The coils must be anchored to
the bottom with weights or a net to prevent them floating.
Figure 45: Lake water as heat source.
Ground water heating
Ground water can be used as a heat source on the condition that
there is a sufficiently large flow of ground water in the borehole.
A submersible pump is lowered in one hole and pumps up
groundwater, which flows through a separate heat exchanger,
and is then returned through another borehole. The heat pump
has a short brine circuit that works directly against the separate
groundwater exchanger.
Figure 46: Ground water as heat source.
When ground water is used as a heat source the heat pump
installation must be equipped with a flow guard that stops the heat
pump if the flow in the brine pipe is too low, which can create a risk
of freezing in the ground water exchanger.
Ground heat
The stored heat energy in the ground can be used as a heat
source. In this case a brine loop (or loops) is/are laid under the
surface layer of ground
Figure 47: Ground as heat source.
Air heat
The Geysir Air heat pumps are equipped with an outdoor unit that uses
air as a heat source. Geysir Air, can make use of the energy in the air
outdoors down to temperatures of -20°C. To obtain the correct airflow
through the outdoor section it is equipped with a fan.
Figure 48: Connecting outdoor unit to use air as heat source.
