Made of strong welded steel frame protected with polyester powder painting, for internal installation.
Semi-hermetic «double screw» type with a built-in thermal switch protection motor complete with: suction (option) and discharge shut-off valves, oil separator, step control, crankcase heater, oil level switch (option), oil sight glass, safety thermostat, oil strainer, suction strainer, liquid injection device (option), vibration dampers.
Shell and tube type, made by copper tubes and carbon steel shell and with one or two independent refrigerant circuits and one water circuit. The thermal insulation is made of flexible closed-cells lining. It’s including the differential pressure switch which will stop the unit in case there is no water circulation.
One or two shell and tube type, made by copper tubes and carbon steel shell.
Each unit is supplied with one or two independent refrigerant circuits; each one includes: filter dryer, refrigerant sight glass, electronic expansion valve, discharge compressor and liquid line shut-off valve, service valve, HP/LP gauges. To protect the refrigerant circuit the following devices are installed: automatic reset low pressure switch, manual reset high pressure switches, safety valve, antifreeze thermostat.
It includes: main circuit automatic breaker with locking door device, main fuses, compressor contactor and fuses for the star/ delta start or part winding; fans contactors and fuses, auxiliary circuits transformer; microprocessor to control automatically the unit with a visual system to display the function as well as failures.