Electronic control instrument.

Expansion device: capillary tube.

Solid core filter on the liquid line.

Cold room lighting on form 1, 2, 3, 3M units. Form 4 and 5 units are only pre-arranged for a cold room lighting connection.

Cable for door switch connection; door switch functions can be programmed on the electronic control panel.

Cable for door heater connection on all low temperature units.

Crankcase heater on compressors of form 4 and 5 units.

All form 1, 2, 3 and 3M units are equipped with a fixed calibration low pressure switch; all three-phase units and models VTA/VTN122 are also provided with a fixed calibration high pressure switch; all form 4 and 5 units are equipped with adjustable low and high pressure switches with automatic reset, instead.
This outfit complies with the provisions of the “Pressure Equipment Directive” 97/23/EC.

Suction accumulator on form 4 and 5 units.

Condenser fan pressure switch on form 4 and 5 units.

Condensate evaporation tray with safety overflow drain on all form 1 and 2 units, on form 3 units only for high and medium temperature models. Direct drainage of condensate on form 3 low temp. units and on all form 3M, 4 and 5 units.

Drain heater on all medium and low temperature units.

Through-the-wall installation.

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 condenser 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).

Remote panel: already connected to the unit and provided with a 5 metres long cable (on request extension up to 20 metres).

Voltage monitor.

High pressure switch (only for voltage 230/1/50, standard on VTA/VTN122 models).

Condenser fan pressure switch (forms 1, 2, 3 and 3M).

Condenser fan speed regulator (forms 3, 3M, 4 and 5 ).

Switchboard heater.

Crankcase heater (forms 1, 2, 3 and 3M).

Supplemental solenoid valve (on the discharge line of medium and low temp. units, recommended for units Form 1,2,3 and 3M in case they are exposed to low ambient temperatures, standard on units Form 4 and 5).