phoenix free cooling0 pages

PHOENIX freecooling
Air cooled water chillers with Freecooling system featuring double screw
semihermetic compressors.
Cooling capacity 187 - 494 kW.
BENEFITS
STANDARD FEATURES
• Maximum exploitation of free cooling and maximum
energy efficiency of the system with respect to
conventional solutions, thanks to the independence
of the coils in terms of air handling;
• Accurate control of water outlet temperature
(including at low temperatures - down to -15 °C),
thanks to the use of a modulating three-way water
valve;
• Generous sizing of coils for free-cooling;
• Version SSF featuring extremely quiet operation;
• Individually tested in a test chamber like all MTA
components and products;
• User friendly control section with simple readout and
graphic display;
• Simple to install and maintain, asily accessible
components.
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MAIN OPTIONS
• Compressor silencing canopy on C version (standard on
other version);
• Correction capacitor;
• Axial fans with continuos regulation;
• Fused or MCB electrical protection;
• Air filters on coils;
• -15 °C ambient temperature version;
• Spring type antivibration dampers;
• Replicated remote user terminal;
• Remote display.
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Twin screw compressors with crankcase heater and oil level control;
Part winding start for reduced current spikes;
Compressor suction and discharge valves;
Shell and tube evaporator;
Independent refrigeration circuits;
Axial fans with sickle-shaped blades;
3-way modulating water valve for Free-Cooling (managed
by microprocessor control) and internal hydraulic
connections to the machine;
Total Free-Cooling from approximately 10 °C below the
water outlet temperature;
Water differential pressure switch on evaporator;
High and low pressure transducers;
Electronic expansion valve with external equalisation,
refrigerant filter, sight glass, solenoid valve on liquid line;
Safety valve;
Microprocessor control with advanced software ensuring
optimum control in all conditions;
Main switch;
Protection grade IP54;
SSF fitted silencers, flexible tubing and compressor vibration
damping;
Environmentally friendly refrigerants with R407C zero
ozone depletion potential.
VERSIONS
• Chiller with freecooling system;
• Acoustic configurations:
- C standard;
- SC low noise;
- SF low noise high ambient temperature;
- SSF very low noise.