Air-cooled liquid chillers featuring semi-hermetic screw compressors.

Nominal cooling capacity 332 – 1511 kW

The accurate adaptability of delivered cooling capacity ensured by the "Smart Stepless" function, combined with the use of negligible GWP refrigerant R1234ze, makes the PHOENIX Z series the perfect balance between high seasonal energy efficiency, application flexibility and environmental sustainability.

The 4th generation HFO R1234ze refrigerant characterized by an almost zero greenhouse effect, represents the green alternative to the main low pressure HFC fluids, such as R134a and R513A.

PHOENIX Z: The efficient choice with a negligible environmental impact.

Technical features
Mode Compressors Refrigerant Heat exchanger Fan
Cooling Screw compressor R1234ze Single pass shell & tube heat exchanger Axial fan EC axial fan
• Near zero GWP refrigerant HFO R1234ze;
• High seasonal energy efficiency (SEPR HT);
• Performance guaranteed by Eurovent certification;
• Extended operating limits;
• 4 available versions; differentiated for efficiency and noise;
• Wide range of options and kits for customized solutions;
• Adaptability to any operating condition using the "Smart Stepless" regulation.
Standard features
• R1234ze refrigerant;
• Semi-hermetic screw compressors with Smart Stepless regulation;
• Compressor crankcase heaters and phase monitor;
• Micro-channel condensing coils;
• Axial fans with step regulation (HE version);
• EC Brushless fans (HEX, SSN and SSX versions);
• Electronic expansion valves;
• Single pass shell & tube evaporator optimized for R1234ze refrigerant;
• "Victaulic" hydraulic connection kit supplied as standard with each unit;
• IP54 electrical cabinet protection grade;
• Programmable controller with software specifically developed by MTA; high calculation capacity and an easy-to-use graphic interface using a touch-screen user terminal; connectivity and supervision through Ethernet, USB and RS485 Modbus ports.
• Minimum ambient temperature down to -20 °C;
• Single pump with low (P2) or medium (P3) head pressure;
• Twin pumps with low (P2) or medium (P3) head pressure;
• Storage tank (up to model 6002);
• Anti-freeze protection heaters for the heat exchanger and hydraulic module;
• Compressor shut-off valves (suction);
• Finned pack condensing coils with copper pipes and aluminum fins;
• Painted protection treatment for condensing coils;
• Metal mesh protection filters for condensing coils;
• Compressor soft-starter;
• Compressor soundproof housing (for HE and HEX versions);
• Complete soundproof covering panels for compressors and hydraulic compartment;
• Total heat recovery (up to model 6002, except model 3601).
• Antivibration mounts;
• Metal mesh protection filters for condensing coils;
• Remote user terminal;
• xWEB300D PRO supervision system;
• xVISION web-based remote management and monitoring platform;
• Modularity kit (master/slave from 3 to 7 units).
• HE – Standard efficiency;
• HEX – High efficiency;
• SSN – Standard efficiency, super low noise;
• SSX – High efficiency, super low noise.
Sectors of application  
  • Plastics
  • Automotive
  • Chemical & Pharmaceutical
  • Laser
  • Eurovent
  • ISO 9001:2015 - PED - FGAS
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