– Set Free Sigma
Modular TopFlow High Efficiency Heat Recovery
– Set Free Sigma
Modular TopFlow High Efficiency Heat Recovery

– High efficiency air conditioning units
SET FREE Σ lifts performance and efficiency to a new level. Choose the high-efficiency FSXNS series or ultra-high-efficiency FSXNP series (EER up to 5.23 & COP up to 6.19 in FSXNP series), offering a wider range of operating ambient temperatures and increased indoor unit combination capacity.
These elements will provide you with superior temperature management, and performance as well as significant energy and cost savings.

– Compact outdoor units
SET FREE Σ outdoor units are compact, lightweight and easily transportable (one single module up to 24HP in FSXNS series); designed to make life easier for the people who use, specify, install and service them. Offering a wide choice of capacities with compact and flexible piping options, each unit can be connected to up to 64 indoor units.

– CH-Box: for a better-performing HVAC system
SET FREE Σ outdoor units are compact, lightweight and easily transportable (one single module up to 24HP in FSXNS series); designed for user convenience and for easy installation and servicing.
Offering a wide choice of capacities with compact and flexible piping options, each unit is connectable to 64 indoor units.

– VRF with emergency backup system
You can count on SET FREE Σ to perform reliably in the harshest of environments. The cabinet is built on a toughened, rigid frame designed to withstand external shocks. Even in the unlikely event of one unit in the module failing, the emergency backup system was designed to withstand external shocks and will ensure uninterrupted operation by distributing the load to the modular units.