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UNIT DESCRIPTION
FRAME
All units are made from galvanised thick sheet metal, painted with polyurethane powder enamel at 180°C to
ensure the best resistance against the atmospheric agents. The frame is self-supporting with anodized extruded
aluminum profiles. The condensate pan is present standard in all units and it's in stainless steel.
REFRIGERANT CIRCUIT
The refrigerant gas used in these units is R407C. The refrigerant circuit is made in according to 97/23 CE
concerning welding procedures and PED regulation.
The refrigerant circuit includes:
• filter drier;
• schrader valves for maintenance and control;
• pressure safety device (according to PED regulation);
• thermal expansion valve with external equalizer;
• compressor;
CONDENSER AND EVAPORATORS
FINNED PACK
It consists of copper tubes mechanically expanded into aluminium or copper fins provided with full collars that
allow their regular spacing. The best heat transmission is guaranteed by the fin collars that completely cover the
tubes.
FINS
They are manufactured by high precision pressing of aluminium epoxy painted, or pre tinned copper sheets. The
fin shape is slightly corrugated in order to improve the heat exchange transmission coefficient without heavily
affecting the air pressure drop. Furthermore, a good water draining is assures and the inside dust accumulation is
avoided.
TUBES
For the heat exchangers high quality copper tubes are used. The tubes are suitable for the majority of the primary
refrigerant and both cold and warm working conditions.
COMPRESSOR
The compressor is scroll type with crankcase heater and thermal overload protection by a klaxon embedded in the
motor winding.
The characteristics of the compressor are the follow:
1. High efficiency for saving energy consumption;
2. Low sound level for quiet operation;
3. Applied HFC refrigerant for protecting environment;
4. High reliability, long lifetime;
FANS
Centrifugal fan type and fan-motor direct coupled.
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