Construction features
• Compressor: high energy efficiency, oil free, centrifugal compressor with limited start, equipped with magnetic levitation bearings and complete with integral protection and intake and delivery shut-off valves.
• Water side heat exchanger: flooded type shell and tube, 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 with internal thermal protection, accident protection grilles. Version B is equipped with a proportional electronic device for continuous fan rotation speed regulation, while versions T-Q are equipped with EC motor fans.
• 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;
– double safety valve;
– clock board;
– Master/Slave control up to 4 units in parallel;
– control of Variable Primary Flow (VPF_R).
Versions
• B – Basic version, soundproofed technical compressor compartment (TCATBZ).
• T – High-efficiency version, soundproofed technical compressor compartment (TCATTZ).
• Q – Super silenced version, super-soundproofed technical compartment, reduced speed fans (TCATQZ).
Models
• TCATBZ: standard unit designed for cooling only.
• TCATTZ: high efficiency unit designed for cooling only.
• TCATQZ: super silenced unit designed for cooling only.
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.
• Condensing control with fans with EC motor (standard in T-Q versions).
• Condensing control with over-pressure fans.
• Power factor correction capacitors (cosφ > 0.94).
• Compressor circuit breaker switches.
• Electro-mechanical flow switch.
• Forced limit of power consumption.
• Forced noise limit.
• Energy parameter measuring device.
• Soundproofed compressor box.
• Refrigerant leak detector.
• Cooling circuit high and low pressure gauges.
• Coil protection nets.
• Micro-channel coils with E-coating treatment.
• 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, if applicable.
• Interfaces for serial communication with other devices.
• Anti-vibration mounts.
Separately supplied accessories
• Remote keypad with display.
• Rhoss supervisors for unit monitoring and remote management.
• Rhoss sequencer for integrated management of multiple chillers.
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