Sigilus
Low-noise motocondensing units
Low-noise motocondensing units for outdoors installation, for positive and negative temperature applications.
- Description
- Technical features
- Options
- Dimensions
- Documentation
Description
Low noise condensing units for positive and negative refrigeration with hermetic alternative compressor with noise insulation and low speed axial motor fan. These units are characterised by:
- Tropicalised design for high ambient temperature up to 50 ºC.
- Multi-service version with VRC cooling capacity modulation system.
- Liquid injection system for compressor refrigeration.
Installation without electrical board (-N version)
Versions
- -N version: Without electrical board. Designed for on/off operation depending on the suction pressure (pump-down). With electrical board as an option. Electronic controller to manage the condensing unit and the evaporator built-in solenoid valve as an option.
- -V version (multi-service): The multi-service version features VRC system to adjust the refrigerant flow to the demand of the evaporators, keeping the pressure constant in suction the line. The VRC system is composed of a set of pressure and temperature control valves to progressively modulate cooling capacity from 100 % to 10 % of its nominal capacity, while reducing energy consumption and preventing compressor overheating.
- 230 V-I-50 Hz or 400 V-III-50 Hz power supply. Available in 60 Hz. Others voltages by request.
- R-134a or R-449A refrigerant, other refrigerants by request.
- Reciprocating hermetic compressor, acoustically insulated with discharge muffler, mounted on shock absorbers, with crankcase heater and internal klixon.
- Large-surface condensing coil made of copper tubes and aluminium fins, with tropicalised dimensioning for ambient temperatures up to 50 °C.
- Low speed axial motor fan.
- Refrigeration circuit equipped with high and low pressure switches, ceramic filter and sight gauge.
- Digital control of condensation pressure with the optional electrical board, and all-nothing condensation control in condensers without electrical panel.
- Proportional control of condensing pressure through fan speed variation (included from MDF-NY-2086 and MDF-NG-1038 without electronic control).
- Full control and power board with compressor and motor fan protection.
- Evaporator electronic control board (-N version with optional electrical board).
- Built-in oil separator (-V multi-service version).
- Liquid injection system for negative temperature models with R-449A.
- Change to 400 V-III-50 Hz power supply.
- Built-in oil separator (already included in -V version).
- Built-in solenoid valve with body and coil (except -V version).
- Anti-corrosion coil coating.
- Coil protection grille.
- Proportional condensation control by fan speed variator (1 series).
- Control and power panel with electronic control unit for management of condenser and evaporator.
- Larger sized multifunction electronic control.