Air-cooled liquid chillers

Highly efficient devices for commercial and industrial use with liquid cooling requirements. Units equipped with Flat top fan installation are intended for a wide range of applications at operating conditions from -25°C to 45°C.


The units meet the energy requirements specified in the regulations for Energy-related Products (ErP) and have high seasonal efficiency coefficients. Additional energy configurations are available in the selection software.

Technological advantages

HP Dynamic Setpoint – smooth control of high pressure depending on the load maximizes energy efficiency. Electronic control of the injection of the evaporator expansion valves increases the efficiency of the exchangers.

ACS – ALPENTA Control System – dynamic high pressure setting value and several limiting functions maximize efficiency at part load and in outdoor conditions close to operating limits.

ASS – ALPENTA Selection Software – allows you to design hundreds of energy configurations so that the device meets individual requirements for energy efficiency or other specific technical requirements of the project.

Technologie Scroll – units are equipped with high efficiency scroll compressors.

RS485 Modbus for cooperation with the superior system, automatic data recording on microSD and the possibility of extension with the Mater/Slave function.

Flat top EC – best performance in its class. The fully integrated EC fans have been developed using CFD (advanced flow simulation) and ensure optimal air flow on the suction and discharge side of the impeller along with noise reduction.

 

SAC - COMPACT CHILLERS
EAC – EFFICIENT CHILLERS
AAC – ADVANCED CHILLERS
Standard equipment
  • Compressors – hermetic high-efficiency scroll compressor with axial and radial compliance, crankcase heating and discharge temperature control.
  • Electronic expansion valves – maximizing evaporator and compressor energy efficiency.
  • EC fans – speed controlled, fully built-in, high performance with optimized full diffuser and guide vane (meets requirements of ErP directives).
  • Evaporator – efficient brazed stainless steel plate or Shell&Tube exchanger.
  • Condenser – long-term reliable exchanger with aluminum fins and copper pipes.
  • Cooling circuit – high / low pressure sensors and switches, suction and discharge temperature sensors, 4-way valve.
  • Hydraulic circuit – flow switch, inlet and outlet water temperature sensors.
  • Casing – galvanized steel sheet painted RAL 7035 provides long-term corrosion resistance.
  • Electrical switchboard – IP54, manufactured in accordance with the requirements of EN 60204-1, sequence and phase failure protection relay.
  • Communication – isolated RS485 interface for ModBUS, BacNET MS/TP, Ethernet, microSD recording of operating data with adjustable frequency.
Optional accessories
  • Compressor soft starters to reduce starting currents
  • Low-noise design - noise-insulated compressor covers
  • Air capacitor with grid protection or epoxy surface paint
  • Low and high refrigerant pressure gauges
  • Desuperheater for partial heat recovery of the compressor discharge
  • Freecooling – additional exchanger for free cooling with optimization of working modes
  • Hydraulic circuit accessories – pump and reserve pump with available external pressure of 200 kPa or 350 kPa, expansion tank, buffer tank.
  • Frequency inverter of pump performance for savings at partial load
  • Remote control panel (HMI)
  • WiFi module for remote control with Android/iOS app
  • Rubber or spring anti-vibration mounts
  • Individual RAL color of the unit casing