Sigilus
Glycol chiller
Coolers in compact and silent construction for glycol or brine.
- Description
- Technical features
- Options
- Dimensions
- Documentation
Description
Air-cooled, water, glycol or brine condensing chillers, with silent operation and compact construction in galvanised steel bodywork and structure in polyester paint for outdoor installation.
- Operation with water, glycol or brine.
- Minimum coolant charge.
- Integrated hydraulic circuit.
- 230 V-I-50 Hz or 400 V-III-50 Hz power supply. Available in 60 Hz. Others voltages by request.
- Hermetic reciprocating or scroll compressor, acoustically insulated, with discharge silencer (in hermetic reciprocating compressor), mounted on dampers, with internal clixon and crankcase heater.
- Large-surface condensing coil made of copper tubes and aluminium fins, with tropicalised dimensioning for ambient temperatures up to 50 °C.
- Low-speed, nozzle-mounted motor fans, dynamically balanced propellers and external protection grilles.
- Proportional condensing pressure control by means of fan speed variation (optional on single-phase models).
- Cooling circuit equipped with high and low pressure switches, ceramic filter and sight glass.
- Stainless steel plate heat exchanger.
- Electric power and control panel, with differential and magneto-thermal protection for compressor, fan/s and hydraulic pump.
- Built-in hydraulic circuit made of copper tube with flow switch, thermometers, air vent and drain valve. Thread connection up to 1 1/2″.
- Liquid injection in low temperature models with R-449A.
- Built-in hydraulic unit with glycol circulating pump, expansion vessel, safety valve, mesh filter, air vent and filling valve.
- Proportional condensing control (standard on three-phase models).
- Coil anti-corrosion coating.
- External coil protection grille.
Control panel
- 230 V-I-50 Hz or 400 V-III-50 Hz power supply.
- Main switch.
- Multifunction electronic controller, with the following functions:
- Compressor, fans and circulator pump management.
- Proportional control of condensing pressure by varying fan speed (three-phase models).
- Glycol inlet/outlet probes and evaporating temperature probe.
- Safety control and operation alarms.
- RS485 connection with MODBUS RTU communication protocol.
