Water-cooled water chillers. Range with semi-hermetic screw compressors with variable Vi, inverter regulation and R513A refrigerant gas.
Construction features
• Compressor: high energy efficiency semi-hermetic screw driven by fixed speed motor with linear capacity control and/or variable Vi regulated by inverter (25%-100% single-compressor sizes, 12.5-100% bi-compressor sizes), limited start, complete with integral protection, casing heater, oil level sensor and shut-off valves on delivery and intake piping.
• Water side heat exchanger (evaporator): low refrigerant charge spray flooded type shell and tube exchanger, complete with closed cell polyurethane foam rubber insulation, water flow differential pressure switch and Victaulic fittings.
• Water side heat exchanger (condenser): tube and shell complete with safety valve, service valve on the high-pressure refrigerant gas circuit, and a water flow differential pressure switch and Victaulic fittings.
• Control: microprocessor electronic control.
• Structure: made of galvanised and painted steel plate with polyester powder coating.
• The unit is also complete with:
– clock board;
– electronic expansion valve;
– display of cooling circuit high/low pressure;
– Master/Slave control up to 4 units in parallel;
– 0-10V analogue signal for condensing control from external device;
– control of Variable Primary Flow (VPF_R).
Versions
• T – High efficiency version
Models
• TCHITL: unit designed for cooling only.
Factory fitted accessories
• Free-Cooling management
• Dry-Cooler management
• 100% heat recovery unit.
• Set up for heat pump operation.
• Power factor correction capacitors (cosφ > 0.94).
• Circuit breaker switches.
• Forced limit of power consumption.
• Soft starter.
• Electro-mechanical flow switch.
• EMC anti-disturbance filters.
• Energy parameter measuring device.
• Compressor soundproof enclosures.
• Full acoustic casing.
• Refrigerant leak detector.
• Double safety valves.
• Digital input for double set-point.
• 4-20 mA analogue signal for shifting set-point.
• Evaporator antifreeze heater.
• Control of min/max power supply voltage.
• Interfaces for serial communication with other devices.
• Colour touch user keypad (fitted on the machine or remotely) with 7” display.
• Anti-vibration mounts.
Separately supplied accessories
• Remote keypad with display.
• Outdoor air temperature probe for set-point compensation
• Thermostat with display.
• Rhoss supervisors for unit monitoring and remote management.
• Rhoss sequencer for integrated management of multiple chillers.
