Air-cooled water chillers with axial fans. Series with semi-hermetic screw compressors and R1234ze or R515B refrigerant gas.
CONSTRUCTION FEATURES
• Compressor: high energy efficiency semi-hermetic screw compressor with variable Vi intrinsic compression ratio, star-delta limited start-up, inverter rotation adjustment (down to 8% at part load), complete with integral protection, casing heater, oil level sensor and refrigerant gas outlet piping shut-off valve.
• Water side heat exchanger: 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.
• Air side heat exchanger: with micro-channels.
• Fan: external rotor axial type electric fans equipped with internal thermal protection, accident protection grilles and proportional electronic device for continuous fan rotation speed adjustment.
• Control: microprocessor electronic control.
• Structure: made of galvanised and painted steel plate with polyester powder coating.
• The unit is also complete with:
– display of cooling circuit high/low pressure;
– electronic expansion valve;
– oil level sensor;
– clock board;
– Master/Slave control up to 4 units in parallel;
– control of Variable Primary Flow (VPF_R).
VERSIONS
• T – High efficiency version with oversized condensing section (TCAITE-TCAITO).
• Q – Super-silenced version complete with compressor technical compartment soundproofing, reduced speed fans and oversized condensing section (TCAIQE-TCAIQO).
MODELS
• TCAITE: high efficiency unit designed for cooling only with R1234ze gas.
• TCAIQE: super silenced unit designed for cooling only with R1234ze gas.
• TCAITO: high efficiency unit designed for cooling only with R515B gas.
• TCAIQO: super silenced unit designed for cooling only with R515B gas.
FACTORY FITTED ACCESSORIES
• PUMP with single or double electric pump, one of which automatic in standby. The electric pumps are available in the low or high head versions.
• Inverter pump control for unit start-up.
• Desuperheater.
• 100% heat recovery unit.
• Condensing control with fans with EC motor.
• Condensing control with over-pressure fans (T version only).
• Power factor correction capacitors (cosφ > 0.94).
• Electro-mechanical flow switch.
• EMC anti-disturbance filters.
• Forced limit of power consumption.
• Forced noise limit.
• Energy parameter measuring device.
• Soundproofed compressor box.
• Cooling circuit intake valves.
• Refrigerant leak detector.
• Cooling circuit high and low pressure gauges.
• Double safety valves.
• Coil protection nets or buffer panels.
• Microchannel coils with E-coating treatment, copper/aluminium, copper/copper, pre-painted copper/aluminium.
• Control of min/max power supply voltage.
• Digital input for double set-point.
• 4-20 mA analogue signal for shifting set-point.
• Evaporator antifreeze heater, electrical panel, electric pumps and heat exchangers for heat recovery if applicable.
• Low temperature water production.
• Interfaces for serial communication with other devices.
• Colour touch user keypad (fitted on the machine or remotely) with 7” display.
• Spring anti-vibration mounts.
• Protective packaging.
SEPARATELY SUPPLIED ACCESSORIES
• Remote keypad with display.
• Thermostat with display.
• Rhoss supervisors for unit monitoring and remote management.
• Rhoss sequencer for integrated management of multiple chillers.
