Frame: self-supporting with removable panels in hot-dip galvanised sheet and coated with polyurethane powders at 180°C.
Cooling circuit: manufactured according to standard UNI EN 13134, equipped with safety devices according to standard.
Compressors: The DC inverters are of the hermetic rotary (65 and 85), twin rotary (110) and scroll (150) type.
Source side exchanger: optimized for winter operation, it is manufactured in copper tubes, mechanically expanded into the aluminium fins with geometry.
Fans: manufactured in plastic material, they are of the axial type with airfoil blades. Equipped with permanent magnet BRUSHLESS motor fans they are controlled by a customised INVERTER board.
Operation side exchangers: they are of the brazed-plate type and manufactured in AISI 316 stainless steel, optimized to increase the exchange during heating and reduce loss of head. An integration resistor is also provided (standard), with automatic activation in case of emergency (e.u. malfunction) and to be used with the anti-legionella function ( with DHW control active).
Electrical panel: manufactured in compliance with current European standards, with protection grade IP55 and accessible only by removing the front panel of the unit.
Control system: all units are equipped with CUSTOMISED electric control, optimized to improve power modulation and control precision.
Hydraulic circuit: all models are provided with hydraulic circuit (on-board) including circulation pump with variable air flow, expansion tank, safety valve (3 bar) and automatic bleed valve, with 1" water couplings.