Water-cooled water chillers. Range with stepless semi-hermetic screw compressors and R513A ecological refrigerant gas.

Construction features

• Compressor: high energy efficiency semi-hermetic screw compressor with control of linear capacity, with star-delta or part-winding start up (depending on models) and complete with integral protection, casing heater and refrigerant gas outlet piping shut-off valve.
• Water side heat exchanger (evaporator): dry expansion shell and tube exchanger with counterflow heat exchange, complete with closed cell polyurethane foam rubber insulation, water flow differential pressure switch and Victaulic fittings. Antifreeze heater sizes 1200-1230.
• Water side heat exchanger (condenser): tube and shell complete with differential pressure switch, safety valve, service valve on the high-pressure refrigerant gas circuit.
• Control: microprocessor electronic control.
• Structure: made of galvanised and painted steel plate with polyester powder coating.
• The unit is also complete with:
- clock board;
- display of cooling circuit high/low pressure;
- electronic expansion valve;
- 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

• TCHVTL: unit designed for cooling only.

Factory fitted accessories

• 100% heat recovery unit.
• Free-Cooling Management.
• Dry-Cooler Management.
• Set up for heat pump operation.
• Condenser Victaulic fittings.
• Power factor correction capacitors (cosφ > 0.94).
• Circuit breaker switches.
• Forced limit of power consumption.
• Soft starter.
• Inlet compressor shut-off valves.
• Energy parameter measuring device.
• Electro-mechanical flow switch.
• Digital input for double set-point.
• Compressor soundproof enclosures.
• Refrigerant leak detector.
• Full acoustic casing.
• Compressor oil level sensor.
• Double safety valves.
• Control of min/max power supply voltage.
• 4-20 mA analogue signal for shifting set-point.
• Evaporator antifreeze heater (sizes 1290-21450).
• Interfaces for serial communication with other devices.
• Colour touch user keypad (fitted on the machine or remotely) with 7'' display.
• Anti-vibration mountings supplied loose.
• Protective packaging

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.