FIW 13÷74

Fan Coil units for built-in installation with 3-Speed or EC Inverter radial fans

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These hydronic Fan Coil units are designed for built-in installation: vertical floor-mounted or horizontal ceiling-mounted in domestic environments or service sector including offices, hotels, restaurants, gyms and shops.
Part of an hydronic system equipped with a liquid Chiller, it generates cool air silently and with instantaneous reaction. During the winter, if combined with a boiler or heat pump, it provides warm air, making it possible to meet home or business heating needs.
A filter, which absorbs and retains dust in suspension, allows to keep the air quality at a
suitable level and its easy removal enables continuous cleaning cycles to be carried out,
which are particularly important in order to guarantee suitable hygiene standards in highly
frequented rooms. All installation needs are considered in the many standard features of the unit. It can be installed horizontally or vertically, with front, bottom or rear intake. There is also a series of accessories, also for 4-Pipe systems, that includes a control panel that is installed in the room.
Units are available both with 3-Speed or EC Inverter fans. The units equipped with EC Inverter motor are able to modulate the air flow ensuring a perfect adaptability to the load without any temperature fluctuations, achieving superior performance compared to the traditional solutions even from energy consumption point of view.


  • FIW/IV - Vertical unit with bottom inlet and vertical delivery
  • FIW/IF - Vertical unit with front inlet and vertical delivery
  • FIW/IO - Horizontal unit with rear inlet and horizontal delivery
  • FIW/II - Horizontal unit with bottom inlet and horizontal delivery
  • FIW/IV/EC - Vertical unit with EC Inverter fans, bottom inlet and vertical delivery
  • FIW/IF/EC - Vertical unit with EC Inverter fans, front inlet and vertical delivery
  • FIW/IO/EC - Horizontal unit with EC Inverter fans, rear inlet and horizontal delivery
  • FIW/II/EC - Horizontal unit with EC Inverter fans, bottom inlet and horizontal delivery

Power range

  • 1.3-7.3 kW
  • 0.4-2.1 Ton


  • Structure made of galvanized sheet complete with heat/sound insulation, regenerating filter and natural discharge condensation tray.
  • Radial fan type directly coupled to a 6-Speed single phase electric motor, with 3 speeds connected in the standard configuration.
  • Radial EC INVERTER fan (23÷74).
  • Heat exchanger coils with copper pipes and aluminium fins with airvent on the distributors.

Loose accessories

  • C Auxiliary condensate drain pan
  • WS Hot water coil for 4-Pipe system
  • EH Supplementary electrical heater
  • S Manual damper
  • SG Manual damper with grid
  • SMF On/off motorized damper
  • SMG On/off motorized damper with grid
  • RM Wall connection for damper
  • SF Supply flange
  • DRA Wall mounted automatic electronic control panel
  • VR Wall mounted fan speed control panel
  • TA Wall mounted ambient thermostat
  • DRE Wall mounted electromechanic control panel
  • DRV Wall mounted automatic electronic control panel and base board (SRV+SPV)
  • SRV Wall mounted automatic electronic control panel
  • SPV Base board
  • IS Modbus RTU protocol, RS485 serial interface
  • MCC Multicontrol connection card
  • TMB Minimum temperature thermostat for VB and VR
  • V2 3-Way on/off valve for 2-Pipe system
  • V4 3-Way on/off valves for 4-Pipe system
  • MP Condensate drain pump
CoolingTotal cooling capacity (1)(2)kW1,311,491,772,052,472,773,113,544,044,585,095,966,457,26
Sensible cooling capacity (1)(2)kW1,091,261,451,681,962,162,422,713,123,473,864,635,075,57
Water flow (1)(2)l/h225256304353425476535609695788875102511091249
Pressure drops (1)(2)kPa51116851492617851615
HeatingHeating capacity (2)(3)kW3,203,454,194,535,706,357,037,759,019,9311,6913,0014,5916,19
Water flow (2)(3)l/h2752973603904905466056667758541005111812551392
Pressure drops (2)(3)kPa418264117201364128
Water connectionsIn / Out"G½"½"½"½"½"½"½"½"½"½"½"½"½"½"
Air flowMaxm³/h24024034034043043054054069069091091011801180
Air flow (EC version)Maxm³/h------34034043043054054069069091091011801180
Additional coilHeating capacity (2)(3)kW1,501,502,162,162,922,923,753,754,654,656,016,017,847,84
Pressure drops (2)(3)kPa559915152626181813132424
Attacchi idraulici (In / Out)"G½"½"½"½"½"½"½"½"½"½"½"½"½"½"
Electrical heaterPower supplyV/Ph/Hz230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50
Absorbed powerkW0,60,61,01,01,61,62,02,02,52,53,03,04,04,0
Electrical characteristicsPower supplyV/Ph/Hz230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50
Max absorbed powerkW0,030,030,050,050,050,050,070,070,090,090,160,160,190,19
Electrical characteristics (EC version)Power supplyV/Ph/Hz------230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50230/1/50
Max absorbed powerkW------0,020,020,030,030,040,040,070,070,090,090,130,13
Sound pressureMax (4)dB(A)4141444440404444464648485252
Med (4)dB(A)3434383834343737393943434242
Min (4)dB(A)2626262625252727333334343434
Sound pressure (EC version)Max (4)dB(A)------444440404444464648485252
Min (4)dB(A)------252524242626292928283333
WeightsTransport weightkg1212141418192122242533344244
Operating weightkg1010121216171920222331324042




  • 1 Ambient air temperature 27 °C d.b./19 °C w.b., water temperature 7/12 °C.
  • 2 Performances also valid for EC version.
  • 3 Ambient air temperature 20 °C d.b., water temperature 70/60 °C.
  • 4 Sound pressure level measured at 1 m from the unit with reverberation time 0,5 s.
  • N.B. (1) Maximum operating pressure 1000 kPa.
  • N.B. (2) Maximum inlet water temperature 90 °C.
  • N.B. (3) Inhibited ethylene glycol can be added to the water.