• Roof-top mounted units.
• Electronic control panel.
• Expansion device: capillary tube.
• Room lighting on all units.
• Cable for door switch connection; door switch functions can be programmed on the electronic control panel.
• Cable for door heater connection on low temperature units.
• All units are equipped with a fixed calibration low pressure switch; all three-phase units and model SFN2122 are also provided with a fixed calibration high pressure switch.
• Remote panel: already connected to the unit and provided with a 5 metres long cable (on request extension up to 20 metres).
• Direct drainage of condensate.
• Drain heater on all units.
• Roof-mounted units.
• Units recommended for use at ambient temperatures not lower than 10°C. Suitable accessories are required for use at temperatures below 10°C. In case of outdoor installation it is necessary to protect them from the weather.

Optionals:

Special voltage.

Water-cooled condenser: units equipped with water-cooled conden- ser are also provided with a pressure controlled water valve, a fixed calibration high pressure switch (even on single-phase units), as well as a compressor cooling fan (low temperature units only).

Voltage monitor.

High pressure switch (only for voltage 230/1/50, except for model SFN2122).

Condenser fan pressure switch.

Switchboard heater.

Crankcase heater.

Supplemental solenoid valve (on the discharge line of both medium and low temp. units, recommended in case they are exposed to low ambient temperatures).