Casals QUANTICA EEC, Инструкция по установке, эксплуатации и обслуживанию

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12
EN
2. TECHNICAL CHARACTERISTICS
2.1 Introduction
Any occupied room requires the correct supply of fresh air and, at the same time, the control of the internal thermo-
hygrometric conditions, through the recovery of energy from the air extracted from the room, by means of static counter-
flow heat recoveries, the level of well-being of the occupants is guaranteed, both in summer and winter.
For buildings that require air changes and are not equipped with dedicated air conditioning systems, the installation of such
units allows the supply of primary air at controlled temperature without substantially changing the internal conditions in the
occupied spaces. These units also make it possible to guarantee support for the air conditioning system in the intermediate
seasons using free-cooling or free-heating modes.
These units, if installed on existing buildings, guarantee the energy requalification of the system through the management of
the air change without additional charges; in the case of new installations, instead, the air change is completely carried out
allowing to reduce the size of the main air conditioning system.
In the intermediate seasons the building will benefit from free or partially-generated cooling from these units, which during
the partial load phases allow the main system to operate with higher efficiency.
The units are available in 10 sizes, with nominal air flow rates from 1000 to 21500 m
3
/h.
The heat recovery units are available in
H1
and
H2
configurations with their
CONTROL BASIC
,
CONTROL EVO COP
,
CONTROL
EVO CAV
versions.
2.2 Structure
The structure of the units can be realized in two versions:
VERSION 1:
Profiles 50 x 50 mm in self-supporting extruded anodized aluminium, with mechanical strength requirements in accordance with
EN 1886: D1 (M). 50 mm thick double-walled sandwich type paneling with exterior in pre-painted RAL 9010 galvanized sheet steel
and interior in hot-dip galvanized sheet steel with interposed insulation made of polyurethane foam with a density of 40 kg/m
3
.
This structure has a seal class L1 while the thermal transmittance and the thermal bridge characteristic is class T3/TB4 according
to EN1886.
VERSION 2:
Thermal break profiles 60 x 60 mm in self-supporting extruded anodized aluminium, with mechanical strength requirements in
accordance with EN 1886: D1 (M). 63 mm thermal break sandwich-type double-walled sandwich type panels with exterior in
pre-painted RAL 9010 galvanized sheet steel and interior in hot-dip galvanized sheet steel with interposed insulation made of
polyurethane foam with a density of 40 kg/m
3
. This structure has a seal class L1 while the thermal transmittance and the thermal
bridge characteristic is class T2/TB2 according to EN1886.
Safety microswitches are applied to the inspection doors to allow internal access to the various compartments of the unit only when
the unit is completely switched off. The main access and inspection panels consist of inspection doors with perimeter hinges made
of non-corrosive polyamide and handles.
All units can be supplied in both
monobloc
and
modular
sections for on-site assembly when required.
The units are supplied as standard in a MONOBLOCK configuration, in case of multi-section units, they are
available in special execution. Please contact the Company for further details.
2.3 Heat recovery
The units are equipped with an aluminium counter-flow heat exchanger used to transfer heat from the exhaust air to the
fresh air. The heat exchange takes place in counter-flow with efficiency higher than 80% in dry air. The spacing between
the fins is optimised in order to reduce air-side pressure drop and fan power consumption. In some conditions of low
outside air temperature and high humidity, the exchanger may start to frost. The units are equipped with a defrost
system required in case of very low ambient conditions. The defrost system can either be electric or by hot water. The
heat recovery is also equipped with an additional by-pass damper for the management of the free-cooling and free-
heating mode. The heat exchanger participates to the
Eurovent Certification
program and it is sized according to the
ECO Design
specification.