Packaged air-cooled water chillers in Freecooling mode (TFAEY) and Freecooling NO-GLYCOL mode (TGAEY) with axial fans. Range with scroll hermetic compressors and R410A refrigerant.
Construction features
• Compressor: scroll type, rotary, hermetic complete with thermal protection and casing heater.
• 4 capacity steps with high efficiency at partial loads.
• Water side heat exchanger (evaporator): with stainless steel plates, complete with closed cell polyurethane foam rubber insulation and water flow differential pressure switch (TFAEY) or flow switch (TGAEY).
• Heat exchanger (water-water) in Freecooling NO-GLYCOL: with stainless steel plates, complete with closed cell polyurethane foam rubber insulation and water flow differential pressure switch.
• Air side heat exchanger (condenser): featuring finned coil with copper pipes and aluminium fins.
• Fan: external rotor axial type electric fans equipped with internal thermal protection, accident protection grilles and proportional electronic device for continuous fan rotation speed regulation.
• Control: microprocessor electronic control with Adaptive Function Plus logic.
• Structure: load-bearing structure made of galvanised and painted steel plate with polyester powder coating.
• The unit is also complete with:
– fan and compressor circuit breaker switches;
– clock board;
– water side 3-way modulating valve.
Versions
• T – High efficiency version (TFAETY-TGAETY).
• S – Silenced version complete with compressor technical compartment soundproofing and reduced speed fans (TFAESY – TGAESY).
Models
• TFAETY: high efficiency unit in Freecooling mode.
• TFAESY: silenced unit in Freecooling mode.
• TGAETY: high efficiency unit in NO-GLYCOL Freecooling mode.
• TGAESY: silenced unit in NO-GLYCOL Freecooling mode.
Factory fitted accessories
• PUMP with single or double electric pump, including an automatic actuation pump in standby complete with safety valve. The electric pumps are available in the low or high head versions.
• Electronic expansion valve.
• Power factor correction capacitors (cosφ > 0.94).
• Soft starter.
• Cooling circuit high and low pressure gauges.
• Metal filters or coil protection nets.
• Copper/copper or copper/pre-painted aluminium coils.
• Digital input for double set-point.
• 4-20 mA analogue signal for shifting set-point.
• Evaporator antifreeze heater, 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.
