Operating Description - Uniflair Amico Installation Manual

Operating description

AIR COOLED DIRECT EXPANSION UNITS (DXA)
The air cooled DX units extract heat from the room and transfer it to
the outside using air cooled refrigerant heat exchangers (condensers).
The room unit and external condenser form an autonomous sealed circuit
once installed. The UNIFLAIR remote condensers used with AMICO units
include a precise electronic system to regulate the fan speed to ensure
trouble-free operation throughout the year under a wide range of external
air temperatures. Special attention has been paid to the acoustic design
of the condensers to minimise noise levels. A wide range of combinations
is available to meet different site requirements.
WATER COOLED DIRECT EXPANSION UNITS (DXW)
In the DX water cooled units, the heat extracted from the room is
transferred to water via a stainless steel brazed plate exchanger within
the unit.
The cooling water may be fed from the mains supply or a well (open
circuit), or recycled in a closed loop cooled by external coolers.
In the latter case, an anti-freeze mixture of water and ethylene glycol is
normally used.
The water cooled units have the advantage that the refrigerant circuits
are charged and sealed in the factory. This makes installation extremely
simple, eliminating the need for any site-installed refrigerant pipework.
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