ecoGEO C Installation and User Manual (Version 1.0)
page 10
3.
The hot gas from the compressor is led to the condenser where it releases its heat to the water in the
heating system. Following this transfer of heat, the refrigerant is cooled and condensed, becoming
liquid.
4.
The liquid refrigerant fluid is conducted back to the evaporator through the electronic expansion valve
that accurately controls the flow rate of refrigerant according to the heating system needs. At the same
time, as it passes through the electronic expansion valve, the pressure and temperature of the
refrigerant is reduced so that it can again absorb heat from the antifreeze mixture in the evaporator.
ACTIVE COOLING mode (ecoGEO C3 models only)
Active cooling consists of inverting the operation cycle of the heat pump refrigerant circuit via a 4-way valve.
This implies that the condenser in the normal cycle becomes the evaporator inverted cycle and vice versa. In
this mode, the indoor system fluid (water) extracts heat from the house and releases it to the refrigerant in the
evaporator, while the antifreeze mixture absorbs heat from the refrigerant in the condenser and gives it up to
the ground. This mode of operation is called active cooling or inverted cycle refrigeration.
This technology allows homes (or premises) to be climate controlled throughout the year, even in areas where
high temperatures are reached in the warmer months.
PASIVE COOLING mode (ecoGEO C2 models only)
The heat pump includes another heat exchanger that allows direct heat exchange between the coolant mixture
in the brine circuit and the water in the cooling system, so that no refrigerant circuit is used. In this operating
mode, the compressor is off and cooling and brine circuits are led to the free cooling exchanger using 3-way
valves. Thus, the equipment drives cool water –obtained by heat exchange with antifreeze mixture from the
brine system– to the indoor cooling system, all of which is powered by the circulating pumps.
This technology allows homes (or premises) to be climate controlled throughout the year in temperate zones
where temperatures in the warm months are not excessively high. It should be stressed that, in FREE COOLING
mode, power consumption is very low due to the high efficiency of the circulation pumps.
DHW mode
Domestic hot water (DHW) is produced using two different technologies, according to model.
In ecoGEO C1 and ecoGEO C2 models, DHW heating is produced by diverting the hot water from the condenser
to the DHW hot water tank coil via a 3-way valve.
ecoGEO C3 models feature the patented CHW technology (Closed Hot Water Production System). This totally
innovative technology consists of the introduction of an additional heat exchanger (desuperheater) solely for
producing DHW. This exchanger is placed in series with the main condenser and provides hot water to the hot
water tank coil via a closed circuit. Furthermore, since the reverse cycle is performed after the desuperheater,
it allows simultaneous production of hot water and air conditioning (active heating or cooling).
LEGIONELLA PROTECTION mode
The heat pump has an electric heater installed in the hot water tank that is used only to prevent possible
outbreaks of legionella. Once a week, the heat pump increases the temperature in the tank to 50°C.
Subsequently the electric heater is activated to raise the temperature of the hot water tank from 50°C to 70°C.
Содержание ecoGEO C
Страница 1: ...ecoGEO C Installation and user manual...
