UTN 3 - 23 kW
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High-head thermal ventilating units UTN  3 - 23 kW Flexibility of installation to respond to every need The UTN range of thermal ventilating units has been developed for air conditioning rooms where the use of ducted hydronic indoor units capable of assuring available heads of up to 180 Pa and cooling capacities of 3 to 23 kW is required. The units are characterised by a high flexibility of installation, as they can in fact be positioned either vertically or horizontally and the orientation of the air intake in the rear or front part of the unit itself can be modified by simply moving the inspection panel. All units have a standard configuration for the intake of fresh air and slots for rapidly fixing them to the wall or ceiling. Their reduced height (280 mm up to size 16 and 350 mm for larger sizes) enables them to be accommodated in normal false ceiling and the availability of a wide range of plumbing and ventilation accessories makes it easy to integrate them into air conditioning systems. The units are available in standard and high-efficiency models, depending on the finned block exchanger used, so that they can be better adapted to the needs of the room to be air-conditioned. Centrifugal fan AVAILABLE VERSIONS Compact dimensions (height 280 mm up to size 16 and 350 mm for larger sizes) Vertical and horizontal installation Wide range of available accessories for simple integration into the system Available head up to 180 Pa High flexibility of installation Can be integrated into the ERGO Thermal ventilating unit suitable for 2-pipe systems UTN DF Thermal ventilating unit suitable for 4-pipe systems (2 heat exchangers) UTN DP The version with double panelling is made with pre-painted sheet steel insulated with class 0 fire-resistant rockwool. Comfort and hygiene UTN can be equipped with the exclusive ionisation system developed by Galletti to eliminate every trace of bacterial contamination from air-conditioned rooms and from the hydronic indoor unit itself.

MAIN COMPONENTS Heat exchanger Made of galvanized sheet steel insulated with sound-deadening, heat-insulating, self-extinguishing closed-cell material to reduce noise emissions and prevent the formation of condensate on the outside surface. It is composed of copper tubing and aluminium fins fixed by expansion. The water connections are reversible. An additional exchanger is available for installing the unit in 4-pipe systems. The aluminium fans are of the centrifugal type, with double suction and staggered blades to reduce noise emissions. They are statically and dynamically balanced to...

Duct unit UTN Rated technical data Available static pressure (E) Total cooling capacity (1) (E) Sensible cooling capacity (1) (E) Water pressure drop (1) (E) Water pressure drop (2) (E) Additional coil heating capacity DF (3) (E) Water pressure drop (3) (E) Standard coil - number of rows Additional coil DF - number of rows Total sound power level (4) Inlet + radiated sound power level (4) (E) Outlet sound power level (4) (E) Available static pressure (E) Total cooling capacity (1) (E) Sensible cooling capacity (1) (E) Water pressure drop (1) (E) Water pressure drop (2) (E) Additional coil...

Rated technical data Total cooling capacity (1) (E) Sensible cooling capacity (1) (E) Water pressure drop (1) (E) Water pressure drop (2) (E) Additional coil heating capacity DF (3) (E) Water pressure drop (3) (E) Standard coil - number of rows Additional coil DF - number of rows Total sound power level (4) Inlet + radiated sound power level (4) (E) Outlet sound power level (4) (E) Hydronic indoor units - UTN Available static pressure (E) Available static pressure (E) Total cooling capacity (1) (E) Sensible cooling capacity (1) (E) Water pressure drop (1) (E) Water pressure drop (2) (E)...

Duct unit UTN Dimensional drawings Drain outlet for horizontal installation Drain outlet for vertical installation Water connections on the right Additional heat exchanger water connections 6-B modifiable during installation Circular pre-cut slot (Ø 100 mm) for intake of external air

Dimensional drawings Hydronic indoor units - UTN Drain outlet for horizontal installation Drain outlet for vertical installation Water connections on the right Additional heat exchanger water connections Air outlet Air intake 6-A supply condition 6-B modifiable during installation Circular pre-cut slot (Ø 100 mm) for intake of external air