Pool Circuit - ECOFOREST ecoGEO Serie Manual De Instalador

This is used to control a support system integrated in the DHW storage tank. This can be used as support to reach higher
temperatures during normal production, to carry out legionella protection programs or as emergency equipment.
Installation instructions
Follow the instructions below to wire the DHW circuit.

In the ecoGEO B models, install a particulate filter in the return pipe to the heat pump 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 check valve at the tap water inlet to prevent the possible return of hot water from the mains.

If necessary, install a safety unit (expansion vessel + safety valve) at the tap water inlet to prevent overpressure in the DHW
storage tank.

If there is a risk of scalding, a thermostatic mixing valve should be installed at the DHW outlet.

If the maximum system pressure can exceed 5 bar, it is recommended to install a pressure reducing valve in the mains inlet
to prevent overpressure in the storage tank.

If there is an auxiliary system integrated in the DHW storage tank, install a safety valve in the production circuit return to
protect it from any overpressures.

3.5. Pool circuit

The ecoGEO heat pumps can be used to send hot water directly to the pool production storage tank through an open / close 3-way
valve. It can be connected two different ways for this purpose, depending on the application. In both cases, the POOL mode must
be activated via a voltage-free signal from a thermostat.
Connection to the heating circuit (A)
In models that are not equipped with the HTR system, pool production should be connected to the heating circuit via an open /
close 3-way valve. This type of connection allows non-simultaneous production for the pool on the one hand and heating or cooling
on the other hand.
Connection to the HTR system (B)
DO4
AI10
T
DO11
Figure 1.12. Wiring scheme of the DHW circuit.
43
Installer manual ecoGEO
DO4