Air cooled chillers
Cooling capacity 310 - 1255 kW.
The chillers of the PHOENIX PLUS series, with environmentally friendly R134a refrigerant, represent the best solution for centralised hydronic air conditioning for large areas (such as airports, offices, shopping centres, cinemas, etc.) ensuring best in class energy savings and reliability. This result is obtained through precise design and component selection added to the availability of up to four compressors on independent refrigeration circuits. The screw compressors installed on PHOENIX PLUS chillers are developed and optimized for R134a and thanks to the "Smart Stepless" software algorithm they are capable to deliver the right cooling capacity according to the needs of the system, even in situations of high load variability; "Smart stepless" manages also the oil level in the compressors even in critical situations activating suitable logics.
Condensing units are modular, allowing the fans to stop gradually as a function of the instantaneous thermal load, helping to increase seasonal energy efficiency of the units. The management of the units is entrusted to a control microprocessor which operates in total autonomy all major functions, including adjustments, the alarms and the interface with the outside.
Technical features
| Mode | Compressors | Refrigerant | Heat exchanger | Fan |
  |
 |
R134a |  |
|
Benefits
High seasonal energy efficiency (ESEER up to 4.34)
High reliability and continuity of operation (up to 4 screw compressors and “Smart Stepless” algorithm)
Reduced noise levels
Wide range of accessories and kits for custom solutions
Integration with AQUAFree free-cooling modules
Technical specifications
Galvanised carbon sheet steel and polyester powder coated
Environmentally friendly R134a refrigerant
Screw compressors optimised for R134a managed with “Smart Stepless” algorithm
Modular condensing section with finned coils with copper pipes and aluminum fins generously dimensioned
AC Axial fans with die-cast aluminum blades, developed on the basis of bionic principles
Electronic expansion valves
Electrical panel: IP54 protection rating; automatic circuit breakers to protect the compressors and fans
Dry expansion single pass shell & tube type heat exchangers, with high energy efficiency and low water pressure drops
Acoustic versions
N - standard acoustic version
SN - silenced acoustic version
SSN - super silenced acoustic version
HE - high efficiency optimized for full loads operations (Eurovent A Class)
SHE - low noise high efficiency optimized for partial loads operations (Eurovent B Class)
Accessories
Low ambient temperatura option (down to -20°C)
EC Brushless fans
Soft starter
Anti-freeze heater
Antivibration mounts
Compressors housing
Condensing finned coils protection with a protective coat of paint
Filters on condenser coils
Remote control
Monitoring system and modularity
Sectors of application
Certifications
