Galletti UTN 22A Ducted Fan Coil 2-Pipe 9.4 kW Cooling / 8.7 kW Heating

The Galletti UTN 22A ducted fan coil, reference UT22A0L00000N0A, is a high-pressure ductable hydronic terminal unit designed for 2-pipe HVAC systems. It features a high-efficiency heat exchange coil, double-inlet centrifugal fans and a 3-speed electric motor, allowing the air flow rate and available pressure to be adapted to the needs of the installation.

Its design allows installation in both horizontal and vertical positions, making it easy to integrate into false ceilings, technical rooms and other concealed installations. The UTN 22A model delivers up to 2,222 m³/h of air flow and a useful static pressure of up to 75 Pa at the currently certified nominal points by Galletti.

Galletti UTN 22A 2-pipe ducted fan coil

The UT22A0L00000N0A configuration corresponds to a unit for 2-pipe hydronic installations, so a single main coil is used alternately for cooling or heating depending on the water temperature supplied by the generator.

This type of installation is commonly used with:

• Air-to-water heat pumps.
• Water chillers.
• Boilers.
• Centralized hydronic systems.
• Residential and commercial HVAC installations.

High-performance 22A version

In Galletti’s official configurator, the letter A identifies the high-performance ductable version, distinguishing it from the standard D versions in the same range.

The main coil of the UTN 22A is made up of 4 rows of copper tubes with aluminum fins fixed by expansion, providing a large heat exchange surface.

3-speed motor

The configuration code for this reference includes motor type 0, which Galletti identifies as a 3-speed electric motor.

The motor is mounted on anti-vibration supports, has a permanent capacitor and winding thermal protection, and is directly coupled to the fan assembly.

The three speeds make it possible to adjust the fan coil performance according to the thermal demand, required air flow and pressure losses in the duct network.

Air flow rate up to 2,222 m³/h

For the UTN 22A, Galletti certifies the following nominal air flow rates:

• Minimum speed: 1,436 m³/h.
• Medium speed: 1,819 m³/h.
• Maximum speed: 2,222 m³/h.

This capacity makes the unit suitable for ducted installations where a considerable volume of air must be delivered to one or more supply grilles.

Useful static pressure up to 75 Pa

The available pressure varies depending on the selected speed:

• Minimum speed: 31 Pa.
• Medium speed: 50 Pa.
• Maximum speed: 75 Pa.

These values make it possible to size the duct network taking into account the losses generated by straight sections, elbows, grilles, diffusers, filters and other air distribution elements.

Although the UTN range as a whole can achieve higher pressures in certain configurations, for the UTN 22A the specific values of 31, 50 and 75 Pa certified for its three nominal speeds must be used.

Current cooling performance

In Galletti’s current technical documentation, the cooling performance of the UTN 22A is certified with water at 7/12 °C and inlet air at 27 °C dry bulb and 19 °C wet bulb, in accordance with EN 1397:2021.

• Minimum speed: 9.20 kW.
• Medium speed: 11.2 kW.
• Maximum speed: 13.1 kW.

The corresponding sensible cooling capacity is:

• Minimum: 6.76 kW.
• Medium: 8.32 kW.
• Maximum: 9.85 kW.

The available capacity in a real installation will vary depending on water and air temperatures, hydraulic flow rate and selected fan speed.

Current heating performance

For heating, Galletti certifies the performance with water at 45/40 °C and inlet air at 20 °C:

• Minimum speed: 9.73 kW.
• Medium speed: 11.7 kW.
• Maximum speed: 13.7 kW.

These data make the UTN 22A especially suitable for low- and medium-temperature hydronic systems, including properly sized heat pump installations.

Hydraulic flow rate in cooling

With the nominal cooling conditions used by the manufacturer, the required water flow rate is:

• Minimum speed: 1,584 l/h.
• Medium speed: 1,927 l/h.
• Maximum speed: 2,249 l/h.

The corresponding pressure drops across the coil are:

• Minimum: 12 kPa.
• Medium: 17 kPa.
• Maximum: 22 kPa.

Hydraulic flow rate in heating

With water at 45/40 °C and air at 20 °C, Galletti specifies:

• Water flow rate at minimum speed: 1,676 l/h.
• Water flow rate at medium speed: 2,020 l/h.
• Water flow rate at maximum speed: 2,354 l/h.

The hydraulic pressure drops are:

• Minimum: 10 kPa.
• Medium: 14 kPa.
• Maximum: 19 kPa.

1" hydraulic connections

The UTN 22A has 1" hydraulic connections for the main coil.

The specific configuration UT22A0L00000N0A includes the main coil connections on the left side, according to Galletti’s coding system.

The manufacturer offers different configurations in the range with reversible connections, but when ordering a configured reference, the arrangement defined by its code must be respected.

No additional coil: 2-pipe configuration

The reference analyzed does not include a second heat exchange coil. This confirms its configuration for a 2-pipe installation.

In a 2-pipe system, the hydraulic circuit switches between chilled water and hot water depending on the season or the overall operating mode of the installation.

No integrated hydraulic valve

The coding of this reference indicates that the valve is not included in the factory configuration.

Galletti offers different 2-way and 3-way valve kits as accessories, with ON/OFF or modulating actuators, which can be selected when required by the project.

Therefore, no hydraulic control valve should be considered included unless expressly added to the order.

No integrated control panel

The UT22A0L00000N0A configuration also indicates that it is supplied without an integrated control panel.

Galletti offers a wide range of optional controls, including electromechanical and electronic microprocessor-based solutions, such as TED, LED503, MY COMFORT and the EVO platform.

The choice of control will depend on the regulation required for the installation and the hydraulic accessories used.

No additional factory sensors

The reference does not include optional sensors in its base configuration.

When required by the control system, Galletti offers sensors for:

• Air temperature.
• Water temperature.
• Humidity.
• Combinations of multiple sensors.

No air filter as standard

The letter N in the full code identifies this configuration as without filter.

Galletti offers optional filtration modules:

• Flat G2 filter.
• Pleated G4 filter.

If filtration is required on the return air side, the corresponding module must be selected as an accessory.

Double-inlet centrifugal fans

The UTN range uses double-inlet centrifugal fans with blades designed to reduce noise emissions.

The assemblies are statically and dynamically balanced to limit the stresses transmitted to the motor shaft and reduce vibrations during operation.

Fan electrical consumption

The electrical power absorbed by the fan assembly depends on the selected speed:

• Minimum speed: 370 W.
• Medium speed: 535 W.
• Maximum speed: 750 W.

The nominal electrical supply for the range is 230 V single-phase, 50 Hz.

Acoustic data

Galletti declares the following total sound power for the UTN 22A:

• Minimum speed: 60 dB(A).
• Medium speed: 67 dB(A).
• Maximum speed: 74 dB(A).

The sound power radiated plus intake is 58 / 65 / 72 dB(A), while the corresponding air discharge sound power is 57 / 64 / 71 dB(A).

The actual levels perceived in the room will depend on the duct design, acoustic insulation, grilles, false ceiling and the building’s construction conditions.

Horizontal or vertical installation

One of the main advantages of the UTN series is its mounting flexibility. The unit can be installed in both horizontal and vertical positions.

The condensate collection and drainage system is designed to allow both configurations, making it easier to adapt to false ceilings, technical walls and other concealed spaces.

Configurable air intake

The intake position can be modified during installation, allowing the air return to be adapted to the available layout on site.

This feature provides greater flexibility when the fan coil must be integrated into reduced spaces or into previously defined duct networks.

Prepared for outdoor air supply

The structure includes a Ø100 mm circular pre-punch intended for outdoor air supply.

This makes it possible to integrate fresh air into the network when the ventilation and air conditioning system design requires it.

Compatible with circular or rectangular ducts

The UTN range can be connected using accessories to:

• Rectangular ducts.
• Ø200 mm circular flexible ducts.

Galletti offers connection panels and specific accessories to facilitate the transition between the unit and the different air distribution systems.

Insulated galvanized steel structure

The load-bearing structure is made of galvanized steel sheet and internally insulated with closed-cell material.

This insulation serves a dual purpose:

• Reducing acoustic transmission.
• Limiting condensation on the outer surface.

The structure also includes panels that facilitate inspection and maintenance of the unit.

Copper and aluminum coil

The heat exchanger is built with copper tubes and aluminum fins joined by mechanical expansion.

This configuration provides a large exchange surface between the water in the hydronic circuit and the air driven by the fans.

UTN 22A dimensions

The 22A model belongs to the UTN 22-40 dimensional group and has approximately:

• Total width A: 1,174 mm.
• Maximum depth: 718 mm.
• Height: 353 mm.
• Dimension B: 1,127 mm.
• Dimension C: 1,096 mm.
• Dimension D: 1,066 mm.
• Weight: 67 kg.

The unit also requires adequate free space for connections, maintenance and air circulation in accordance with the manufacturer’s dimensional drawing.

Condensate drains

The unit has condensate drainage connections for both horizontal and vertical installation.

For the UTN 22A dimensional group, the manufacturer indicates a 17 mm dimension associated with the condensate discharge points.

Wide range of Galletti accessories

The UTN series can be completed with numerous accessories to adapt the fan coil to the project requirements:

• Intake modules with G2 or G4 filters.
• Intake and discharge grilles.
• Panels for connection to rectangular ducts.
• Panels for Ø200 mm flexible ducts.
• 90° fittings.
• 2-way and 3-way valves.
• Electronic and electromechanical controls.
• Auxiliary condensate trays.
• Condensate drain pump.
• Outdoor air intake dampers.
• Supply and intake modules.

These components are accessories and should not be considered included in reference UT22A0L00000N0A unless expressly stated in the supply.

Technical characteristics of Galletti UT22A0L00000N0A

• Brand: Galletti.
• Range: UTN.
• Model: UTN 22A.
• Reference: UT22A0L00000N0A.
• Type: ducted hydronic fan coil.
• Hydraulic configuration: 2-pipe.
• Version: A, high performance.
• Motor: 3 speeds.
• Power supply: 230 V / 1 phase / 50 Hz.
• Air flow rate: 1,436 / 1,819 / 2,222 m³/h.
• Useful static pressure: 31 / 50 / 75 Pa.
• Electrical power absorbed: 370 / 535 / 750 W.
• Current cooling capacity: 9.20 / 11.2 / 13.1 kW.
• Sensible cooling capacity: 6.76 / 8.32 / 9.85 kW.
• Current heating capacity: 9.73 / 11.7 / 13.7 kW.
• Main coil: 4 rows.
• Hydraulic connections: 1".
• Connection side: left in this configuration.
• Control valve included: no.
• Control panel included: no.
• Optional sensors included: no.
• Filter included: no.
• Installation: horizontal or vertical.
• Fans: double-inlet centrifugal.
• Structure: insulated galvanized steel.
• Coil: copper tubes and aluminum fins.
• Prepared for outdoor air: Ø100 mm pre-punch.
• Total sound power: 60 / 67 / 74 dB(A).
• Width: 1,174 mm.
• Maximum depth: 718 mm.
• Height: 353 mm.
• Weight: 67 kg.

High-capacity ducted fan coil with flexible installation

The Galletti UTN 22A UT22A0L00000N0A combines a high-performance hydronic coil with a maximum air flow of 2,222 m³/h, up to 75 Pa of available pressure and a three-speed motor, providing a flexible solution for ducted HVAC installations.

Its horizontal or vertical mounting capability, 1" hydraulic connections, preparation for outdoor air supply and wide range of accessories make it easy to integrate into large residential installations and commercial applications.

The specific configuration is supplied for 2 pipes, left-hand connections, without valve, without control, without sensors and without filter, allowing the installer to complete the unit with the accessories and control system that best suit the project.