Hitachi Set-Free FSNMA

BrandHitachi Model NoSet-Free FSNMA

Outdoor Unit|Set-Free FSNMA



Provided in a compact body, but allows installation conditions comparable with those of a high-performance multi air conditioning system.

The compact, light body facilities deliverly and installation.

The adoption of a slim body improves flexibility in mounting, enabling installation in a small space or a formerly dead space.



Energy efficient SET-FREE Front Flow also keeps you cool at temperatures up to48° C. As the ambient temperature increases, the ability of the AC to deliver the required cooling decreases. But our specially designed heat   exchanger increases the capacity even at high temperatures, ensuring the ability of the machine to deliveroptimum cooling.


The SET-FREE Inverter Technology adjusts the compressor speed and refrigerant flow, thereby maintaining the desired temperature to give you undisturbed comfort. The indoor ambient conditions are maintained more uniformly at desired settings, in spite of variations in indoor and outdoor load conditions.

Product Line-up

(Number of models)
Capacity Range ï¼»HPï¼½
R410A (3 models)


Compact body crammed with advanced technology

New Type DC Inverter Scroll Compressor

  • Improved Intermediate Pressure Performance
    The intermediate pressure performance is drastically improved by adopting release valve and optimizing orbiting scroll lifting force at the improved new compressing mechanism, therefore intermediate pressure performance is widely improved for energy saving.
  • Release Valve Adoption Prevents from Overcompression.
  • Orbiting Scroll Lifting Force Optimization is improved Leakage Loss Reduction.

Smart Balance Control

The performance is the same regardless of the length of the refrigerant pipe.

Quickly senses air temperature difference to demonstrate proper performance. Energy-saving operation without loss realized.



The compact design greatly improves flexibility in installation

Top-class Compact and Light Weight Design

  • Facilitation and flexibility at installation are further advanced by adopting outdoor unit's lightweight and compact design compared to the current top-flow model.

  • With a width of only 390 mm, the SET-FREE FSNM can be installed on a staircase landing or balcony on each floor.

  • The front-flow type system allows installation under the eaves.

Greater Convenience during delivery and installation

  • With its light and compact body, the SET-FREE FSNM can be easily carried in the elevator even in a small urban site.
  • No cranes required for delivery

  • The unit can be carried at one time. Elevators can be used for delivery.

The piping can be designed and constructed up to a total piping length of 250m

The piping can be designed and constructed up to a maximum piping length of 100m. (total piping length: 250m)

  1. Piping length: 100m
    (Equivalent length: 120m)
  2. Max. length after first branch: 40m
  3. Max. length after branch: 15m
  4. Height difference between indoor units: 15m
  5. Height difference
    Highest outdoor unit: 40m
    Lowest outdoor unit: 30m