AIR-TO-WATER HEAT PUMPS – QU4TRO K4A

• Reduced refrigerant charge with low GWP R-454B, minimizing the CO₂ footprint (-77% lower GWP than R-410A and -31% lower than R-32).
• Maximum comfort: simultaneous heating and cooling with a single, simple HVAC unit.
• Series condensing pressure control for year-round operation.
• Adaptability to the installation with a wide range of models.
• Optimized defrosting management.

• Very high seasonal energy efficiency thanks to multi-scroll technology and the versatile K4Smart management system.
• Electronic fans and electronic expansion valve as standard for minimal energy consumption.
• Great versatility and efficiency as they maximize the recovery of condensation heat.
• Year-round hot water production.
• Maximum reliability thanks to the multi-circuit system.

Series 2

QU4TRO includes the programmable electronic control AQUAMANAGER and user terminal pGD1.

It is compatible with optional RS485 card for Modbus communication, boss / tERA Supervision systems, and BACNET / LONWORKS / KNX communication system.