Z-Power FREECOOLING are air cooled water chillers in Freecooling mode with axial fans. Range with semi-hermetic screw compressors and R134a refrigerant gas.
CONSTRUCTION FEATURES
• Compressor: high energy efficiency semi-hermetic screw compressor, with star-delta limited start and complete with integral protection, casing heater and refrigerant gas outlet piping shut-off valve.
• 2 circuits/ 6 capacity steps.
• Water side heat exchanger: counterflow dry expansion shell and tube type, complete with: differential pressure switch, air vent valve, water drain cock, closed cell polyurethane foam rubber insulation with protection film against UVA rays. Victaulic connections.
• Air side heat exchanger: consisting of coil made of copper pipes and aluminium fins divided into two sections: one dedicated to the condensation of the refrigerant gas and one dedicated to cooling the water in free-cooling mode.
• 3-way modulating valve to divert the water flow from the system towards the free-cooling coil or directly towards the evaporator.
• Fan: external rotor axial type electric fans, equipped with internal thermal protection, accident protection grilles and a proportional electronic device for pressurised and continuous fan rotation speed regulation up to an outdoor air temperature of -15°C.
• Control: electronic microprocessor control prepared for the connection with the main BMS available on the market (MODBUS RTU, LON, BacNet).
• Structure: load-bearing structure made of galvanised and painted steel plate with polyester powder coating. The unit is also complete with:
- display of cooling circuit high and low pressure;
- Master/Slave control up to 4 units in parallel;
- clock board.
VERSIONS
• B - High efficiency standard version (TFAVBZ).
• I -Soundproofed version with soundproofing lining on the compressor compartment (TFAVIZ).
• S - Silenced version with soundproofing lining on the compressor compartment and reduced speed fans (TFAVSZ).
MODELS
• TFAVBZ: high efficiency base unit in Freecooling mode.
• TFAVIZ: soundproofed unit in Freecooling mode.
• TFAVSZ: silenced unit in Freecooling mode.
Further info from manufacturer on Z-POWER FREECOOLING Rhoss