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Chillers and heat pumps with low GWP refrigerant R32,with scroll compressors and plate heat exchangers. Also available in inverter version for a specific capacity range. Extended range, versatile applications. 38 - 650 kW


Chiller: chiller with ON / OFF compressors
Hi: chiller with inverter compressor
OH: non-reversible heat pump
Hi OH: Non-reversible heat pump with inverter compressor
/XLN: Super low-noise unit
/DS: execution featuring a desuperheater
/DC: execution with recovery condenser


  • Conforming with Ecodesign Reg. 2281, tier 2
  • High efficiency inverter version available
  • Low GWP refrigerant: unit filled with R32
  • New design: compact footprint for option with built-in hydraulic module
  • Buffer tank (option)
  • BlueThink advanced control with integrate web server. Multilogic function and Blueye supervision system. (options)
  • Flowzer: inverter driven pumps (options)

Comprehensive detailed product information for the best selection and integration in project design
Installation, Operating, Maintenance and Safety information
Our products and services presented in an easy-to-access manner
Declarations and certificates etc
Wiring diagrams and hydraulic schemes etc
Document Article Document type Date Download
EN_SIGMA Sky - QT - Light (pdf 972.98kB) SIGMA Sky R7 Technical catalogue 29/04/2022
Brochure (pdf 4.76MB) Sigma Sky Brochure 08/02/2022
Product Overview (pdf 16.43MB) Product Overview BlueBox 2024 Brochure 30/05/2024
Product Sheet (pdf 487.28kB) SIGMA Sky R7 Technical catalogue 30/05/2024