TN is an alternative to the fan coil units when only filtering, air cooling or air heating is required. Top performance is ensured by high-efficiency copper/aluminium coils of 4 or 6 rows, that can be combined with post-heating coils of 2, 3 or 4 rows. The machine is also fitted with dual-suction centrifugal fans with forward blades for high head levels, coupled with electric motors by means of a belt and pulley with variable pitch. The air is filtered by synthetic G4 filters positioned on the suction line; they can easily be removed for maintenance and cleaning. Alternatively, the FTMxT accessory uses class F7 filters.