Self supporting frame made of extruded aluminium profiles, connected with 3 way joints - no use is made of any screws that protrude from the framework. The frame sits on a base of galvanised steel spars. The frame is fitted with polyurethane injected sandwich panels - the outer steel surface has been pre-painted RAL 9002. The seal is guaranteed by specific long-duration gaskets ensuring that the panels remain perfectly airtight in time despite the pressure that is created during normal operation.
Hermetic scroll compressors equipped with crankase heater and klixon for overload protection and complete with oil sight glass. The compressors are mounted on rubber shock absorbers. CONDENSER (EVAPORATOR in the H version) Copper tube and aluminium finned equipped with a protection grill. AXIAL FANS With aerodynamic designed blades manufactured, directly coupled to a three phase electric motor with external rotor and fitted with thermal contact. A safety fan guard is fitted on air flow discharge.
The refrigerant circuit includes: dryer, sightglass, thermostatic electronic valve “schrader” valve, and solenoid valve. To protect the refrigerant circuit, following devices are fitted: manual reset high pressure switch, automatic reset low pressure switch. Furthermore, where required, manual reset safety pressure switch and safety valve are also fitted. In the heat pump unit version (H) the refrigerant circuit also has the following fitted: double termostatic electronic valve, 4-way valve, non-return valve, solenoid valve, liquid receiver.
Weather proof to IP54 protection level. The board is fitted with: main interlocking automatic circuit breaker, main fuses, compressor contactor, auxiliary circuit transformer, air handling section control. The board also has a microprocessor to automatically control the unit, complete with a display of the operating status as well as all alarm situations.