
5
SAFETY REQUIREMENTS
While operating and mounting the unit consider the requirements of the present operation manual
as well as general requirements of all applicable local and national building and electrical codes and
standards.
The unit must be grounded!
Before connecting the unit to power mains make sure that the unit is free of any visible damages
or any other foreign objects inside the casing that can damage the impeller blades. Otherwise contact
the service center.
Warning!
Disconnect the unit from power supply prior to any mounting, servicing, connection
or repair operations with the unit.
The unit is designed for operation in an enclosed area at ambient temperatures from +1ºC
to + 60 ºC at relative humidity of up to 80%.
Hazardous parts access and water ingress protection standard:
Unit motors - IP 44;
Unit assembly connected to air ducts - IP 22.
The unit series designations, their main outside and connecting dimensions, appearance and
technical parameters are given on Figure 1 and in Table 1.
The unit design is regularly being improved, so some models can slightly dier from those ones
described in this manual.
Model VU..2 250 P EC
Ventilation mode MIN NORMAL MAX
Unit voltage 50 Hz [V] 1 ~ 230
Max. fan power [W] 25 65 130
Fan current [A] 0,21 0,48 0,87
Max. air capacity, m3/h 108 186 250
Rotation speed [min -1] 1420 2410 2930
Noise level, 3 m [dB(A)] 26 34 39
Transported air temperature [°C] from -25 ° C to +60 C
Casing material Aluzinc
Insulation 10 mm celled polypropylene
Filter: extract/supply pocket-type G4
Connected duct diameter [mm] ø 125
Weight [kg] 17
Heat recovery eciency up to 88%
Heat exchanger type cross-ow, 2 pcs.
Table. 1. Technical parameters of the unit