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Air from the outside is introduced into rooms by activating the recuperator when air quality drops
below the comfort level. To reduce the energy requirement necessary to bring the outside air
temperature to the desired conditions, a cross-ow recuperator is able to pre-treat and reduce
the temperature variance of fresh air by exploiting the energy in stale air. The low-consumption
and high-pressure fan expels stale and energetically exhausted air through the vent of the heat
recovery unit.
ROOM
RETURN AIR
EXTERNAL AIR
ASPIRATION
EXHAUST AIR
EXPULSION
TREATED
AIR OUTFLOW
DESCRIPTION
The 200 and 300 versions of the Tecnosystemi recuperators are used for the balanced ventilation
of commercial (shops, restaurants, etc.) and residential settings, and adapt to those environments
in which it is necessary to exchange air, though avoid the dispersion of the internal temperature.
The principle of the recuperator is to continuously introduce fresh and clean air taken from outside
and, at the same time, expel stale air, smoke, odours, etc. from the rooms to the outside.
The exchange pack installed inside the recuperator makes this operation possible.
Thanks to the structure of the exchange pack, the air expelled outside releases its heat into inlet
clean air without the two air ows ever coming into contact with one another.
Two lters installed in the recuperator, in front of the suction vents, ensure that inlet air is free
from particles and dust.
This system has many advantages: effective air exchange, constant internal temperature and
considerable reduction of relative humidity.
RENEWAL
FREE-COOLING
When outdoor air conditions are good, namely, with an indoor summer temperature that is cooler
than the outside, the internal By-Pass damper must be switched manually. It automatically enters
into operation and excludes the cross-ow recuperator, so as not to reduce the comfortable
features of outdoor air and to reduce energy consumption for ventilation In winter, the logic is
reversed and the Free-Cooling feature is activated when the outdoor air temperature is higher
than the recovery temperature of the stale air in the various rooms.
In any case, if the outside temperature deviates too much from the desired indoor temperature,
the Free-Cooling mode is not activates; therefore, the mitigating passage is carried out through
the exchanger, whose aim is to provide comfort.
