Dhw Circuit - ECOFOREST ecoGEO Serie Manual De Instalador

Auxiliary equipment integrated in the heating buffer storage tank
This is used to control an auxiliary unit integrated in the heating buffer storage tank. It can be used for normal heat production or
as emergency equipment.
Auxiliary boiler
This is used to control start-up / stop of an auxiliary boiler and regulate final temperature downstream from the boiler by a 0-10
Vdc modulating 3-way valve. The heat pump can use the boiler to assist in normal heat production or as emergency equipment.

The hydraulic installation must ensure that while the boiler is operation, the temperature through the
heat pump never exceeds 65ºC, since this could cause serious damage to the refrigerant circuit.
NOTE
Integrated components
The following heating / cooling circuit components are included within the heat pump.

Variable speed and high efficiency pump (energy class A).

Expansion vessel with a capacity of 12 litres, with pre-adjusted pressure of 1.3 bar.

Safety valve loaded at 3 bar (pressure gauge).

Drain valve.
Installation instructions
Follow the instructions below to connect the heating / cooling circuit.

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.

Check that the volume of the expansion vessel integrated in the heat pump is capable of absorbing any overpressures from
the circuit. If this volume is not enough, install a supplementary external expansion vessel.

If necessary, adjust the pressure of the expansion vessel integrated in the heat pump to guarantee that the circuit remains
pressurised at all points.

If there is an auxiliary system integrated in the heating storage tank, install a safety valve to protect it from any
overpressures.

3.4. DHW circuit

ecoGEO Compact Models
The ecoGEO Compact heat pumps are provided with an integrated inter storage tank with a capacity of 165 litres, so it does not
require the installation of an external DHW storage tank.
ecoGEO Basic Models
The ecoGEO Basic heat pumps are designed to be used with external storage systems with a midway heat exchanger that can be
either internal or external.
DHW Recirculation
This is used to control a DHW recirculation pump. The storage tanks included in the ecoGEO Compact models are provided with a
separate inlet for DHW recirculation. If an external storage tank without a separate inlet for DHW recirculation is used, it is
recommended to connect recirculation to the cold water inlet pipe.
Auxiliary equipment integrated in the DHW storage tank
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Installer manual ecoGEO