ROOFTOP – PERSEA EVO KCRA

Adaptation and environment

• Reduced charge of low-GWP refrigerant R-454B minimizing CO₂ footprint (-77% less GWP than R-410A and -31% less than R-32).
• Indoor air quality control
• Fully adaptable and configurable roof-tops with a wide variety of optional and mounting options

Energy Efficiency

• Inverter technology to maximize seasonal energy efficiency
• Optimized exhaust air energy recovery systems: Inverter Active Recovery – Dynamic Recovery
• Advanced control for increasing seasonal efficiency by optimizing heat pump defrost management

Active Inverter Recovery

Innovative Full Inverter Active Recovery System for energy recovery by means of an additional cooling circuit with inverter compressor.

This circuit allows an increase of the nominal power of the equipment, which increases its compactness.

Moreover, since this additional circuit exchanges heat between the fresh air and the extract air, under favorable temperature and humidity conditions, a high cooling performance is obtained.

This increases the nominal efficiency of the unit and the seasonal efficiencies under partial loads.

Furthermore, due to the INVERTER technology, they ensure the correct operation for the minimum flow rates established by the RITE update in 2021, going from an air flow rate of 1800m³/h to 1000m³/h.

Dynamic Recovery

It consists of an energy recovery system by means of an additional exchange coil (subcooler), placed in series with the unit’s air condenser, thus
the air condenser of the equipment, achieving a significant improvement in the efficiency of the equipment by reducing the electrical consumption of the equipment.

This system is advantageous compared to static recovery systems, because it avoids static recovery systems, because it avoids a higher consumption of the supply and return fans, due to the high pressure drop of these of these plate or rotary recuperators.

It can also be installed in units with exhaust fans.
extraction fans.

Integration systems with photovoltaic installations

• Intelligent energy management
• Ability to manage and adjust the optimal power consumption and thermal production capacity according to the photovoltaic generation capacity available at any given time
• Allows the integration of rooftops, heat pumps and inverter chillers in photovoltaic installations