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GENERAL FEATURES
Presentation of the unit
This series of air-water chillers and heat pumps satises the cooling and heating requirements of residential plants of medium size.
All the units are suitable for outdoor installation and can be applied to fan coil plants, radiant oor plants and high efciency radiators
plants.
The refrigerant circuit, contained in a compartment protected from the air ow to simplify the maintenance operations, is equipped
with scroll compressors mounted on damper supports, brazed plate heat exchanger, thermostatic expansion valve (standard for IR)
or electronic expansion valve (standard for IP / option for IR), reverse cycle valve, dehydrator lter, axial fans with safety protection
grilles, nned coil made of copper pipes and aluminium louvered ns with subcooling section. The circuit is protected by a safety gas
valve, high and low pressure switches and differential pressure switch on the plate heat exchanger. The plate heat exchanger and all
the hydraulic pipes are thermally insulated in order to avoid condensate generation and to reduce thermal losses.
All the units can be equipped with variable speed fans control that allows the units to operate with low outdoor temperatures in cooling
and high outdoor temperature in heating and permits to reduce noise emissions in such operating conditions.
The low noise acoustic setting up (AS) is obtained, starting from the base setting up (AB), reducing the rotational speed of the fans
and mounting sound jackets on the compressors and the technical compartment is clad with soundproong material of suitable thick-
ness.
The eXtra low noise acoustic setting up (AX) is obtained, starting from the low noise setting up (AS), further reducing the rotational
speed of the fans and using nned coil with bigger surface.
All the units are supplied with a management and control electrical panel containing general switch, phase presence and correct
sequence controller, microprocessor controller with display and all the other electrical components with IP54 minimum protection
degree.
All the units are accurately built and individually tested in the factory. Only electric and hydraulic connections are required for instal-
lation.
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