HRU
The HRU series is available in 6 different models, with a nominal air capacity ranging from 130 m3/h to 3500 m3/h and are particularly suitable for false-ceiling installation, and may be ducted to allow air delivery into the conditioned space .This range of units is particularly suitable for use in civil, commercial environments, offices, shop and especially for restaurant which may have many restrictions in terms of passive-smoke.

Casing
The frame is manufactured from
UNI9006/1- ASTM 6060 Aluminium, with
corner pieces in fibreglass reinforced
nylon. The panels have a sandwich-format
structure in galvanized pre-painted sheet
metal with expanded high density polyure-
thane foam insulation (about 40 kg/m³).

Heat recovery unit
The heat exchange unit is manufactured
from Aluminium due to its characteristics
of heat exchange, resistance against
corrosion, longevity and fire resistance.
Excellent recovery level of about 75%.

Electrical box
It is supplied fully wired for both supply
and return fans; analogue input 0-10 V
for control of flow rate.

Electric fan
It is a double inlet centrifugal fan with a
directly-coupled EC electronic motor with
continuous modulation of the flow rate.
Thermal contacts are provided in the mo-
tor windings for protection against overhe-
ating during operation. Max. air tempera-
ture through the motor during operation is
55°C. Forward blade rotor in galvanised
steel which is statically and dinamically
balanced. The fan casing is made of gal-
vanised steel or polypropylene. Fully com-
pliant with: Low tension Directive – 73/23/
EEC and EMC Directive 89/336/EEC

Filter
The filter efficiency is G4 – EN 779. Remo-
vable from the side.