ecoGEO C Installation and User Manual (Version 1.0)
page 43
5.6
Brine circuit connection
ecoGEO C heat pumps can be used with horizontal, vertical or groundwater brine systems. The geothermal
collectors/probes must be properly dimensioned, taking into account the geographical area, the terrain, the
heating and brine systems used and the thermal power of the heat pump.
When using brine systems with more than one circuit, these must be connected in parallel so that the flow rate
through each is similar. The maximum length of the brine circuitry should not exceed 400 m.
Figure 5.4.
Types of brine systems.
In horizontal brine systems, we recommend burying the coil between 1.2 and 2 meters deep and with a
separation between tubes of at least 1 metre.
In vertical brine systems, use of circuits between 80 and 150 m long, with a minimum separation between
circuits of at least 8 meters.
Horizontal collector
groundwater
Vertical probe
NOTE
Thermally insulate the brine circuit pipes to prevent condensation and/or frost formation, since the
brine circuit pipes may reach temperatures below 0°C.
Make sure the pipe connections are not subject to stress as leaks may occur.
In brine systems with groundwater we recommend using an intercooler to prevent freezing
problems and evaporator fouling.
DANGER!
Do not install components that may clog the inlet or outlet of the safety valve of the brine system.
There may be risk of breaking some of its components and causing injury and damage to property
or both.
When installing the brine circuit, special care must be taken to avoid getting liquid on the electrical
panel. This could result in personal injury from electrical shock and cause equipment malfunction or
both.
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