ECOFOREST ecoGEO HP Serie Manuel D'installation page 34

3.2. Brine circuit
The ecoGEO heat pumps can be used with horizontal or vertical (A) geothermal brine systems or by using groundwater (B).
Geothermal brine systems
Brine systems with more than one circuit must be connected in parallel, so the flow rate through each one is similar.
Groundwater brine systems
Groundwater brine systems must use a midway exchanger to prevent the heat pump evaporator from corrosion, freezing or getting
dirty.
Installation instructions
Follow the instructions below to wire the brine circuit.

Install the necessary components to carry out the filling/discharge of the return pipe.

Install a particulate filter in the return pipe with a mesh size no greater than 1 mm. It is recommended to install shut off
valves immediately before and after the filter to make it easier to clean or replace.

Install a safety unit (expansion vessel + safety valve) in the suction part of the circulator pump to protect the circuit from
overpressure.

Adjust the pressure of the expansion valve to make sure that the circuit remains pressurised at all points.
3.3. Production circuit
The ecoGEO heat pumps can be connected to heating, cooling, DHW and pool heating production systems. They can be connected
to heating / cooling systems, both directly and by separating buffer storage tanks. On the other hand, these enable control over
several devices that are external to the heating / cooling system directly from the heat pump's electrical panel.
Heating / cooling system
The ecoGEO heat pumps are designed to be used with heating systems with nominal outlet temperatures of up to 60ºC; such as
underfloor heating systems, low temperature radiators or convectors. They are not recommended for use in heating systems that
require higher temperatures.
The ecoGEO heat pumps can be used with cooling systems such as convectors and underfloor cooling systems or cooling systems
with negative outlet temperatures. They are not recommended for use in cooling systems that require temperatures below -15ºC.
Special care should be taken in the design and control in installations with underfloor cooling, to prevent problems of condensation
on floors.
All the models allow control over external passive cooling units.
All manuals and user guides at all-guides.com
A)
3
4
B)
3
4
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Figure 1.6. Brine circuit connection options.
Installer manual ecoGEO HP
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