Self-supporting galvanized steel frame protected with polyester powder painting. Panels are easly removable for maintenance and service activities.

Hermetic «scroll» type with overload protection by a klixon and complete with oil sight glass. They are installed on vibration absorbing rubbers and placed within a closed compartment to reduce sound level and to allow service and maintenance activities while unit is in operation.

Copper tube and aluminium finned coil. As option a protection grid is available.

Axial fans with aerodynamic outline blade section made of Al/Mg, directly coupled to a three phase electric motor with external rotor. A safety fan guard is fitted on air flow discharge.

Each unit is equipped with one or two refrigerants circuits. Each refrigerant circuit is complete with 2 service valves: 1 off on the suction line, 1 off on the discharge line. To protect the refrigerant circuits, following devices are installed: manual reset high pressure switch and manual reset low pressure switch. Besides, where foreseen, manual reset safety pressure switches and safety valves. In the heat pump unit (H-version) the refrigerant circuit contains, in addition: safety thermostat on compressor discharge line, 4-way-valve, thermostatic valve, dryer, no-return valve, solenoid valve, liquid separator on compressor suction line.

Weather proof type with protection grade IP54 installed in the compressor box to enable service and maintenance activities while unit is in operation. It includes: Main circuit automatic breaker with locking door device, main fuses, compressor contactor and fuses, auxiliary circuits trafo, free contact to the room thermostat. Moreover microprocessor to control automatically the unit with a visual system to display the function as well as failures.