Spain. KEYTER presented a series of solutions designed to accelerate the transition to more efficient, sustainable HVAC systems aligned with the new regulatory requirements in Europe. The company thus reinforces its commitment to natural refrigerants, heat electrification and high-efficiency technologies applied to residential, tertiary and industrial environments.
For the centralized residential environment, the firm unveiled the PACIFICA KWE system together with the KWD DHW hydraulic module, an integrated solution for heating, cooling and domestic hot water production.
This set stands out for avoiding the continuous cycle changes typical of conventional equipment, optimizing overall performance and adapting at all times to real demand.
Its compact, factory-pre-assembled architecture reduces the footprint on the roof and simplifies installation: simply connect it to the distribution circuits to start it up.
The range covers projects of up to 30 Passivhaus type homes and far exceeds the minimum requirements of SEER and SCOP established by the Ecodesign regulations.
PACIFICA PRO R290: air-to-water heat pumps with natural refrigerant
For tertiary, commercial and industrial installations, KEYTER expands its offer with PACIFICA PRO, a line of air-to-water heat pumps optimized to operate with R290 propane, a natural refrigerant with very low GWP (3) and fully prepared for the restrictions of the new F-Gas.
The reversible, compact and silent units offer power outputs of 29 to 94 kW in cooling and 35 to 114 kW in heating, with the possibility of cascading installation to exceed 600 kW. Full Inverter technology, together with EC fans and high-efficiency exchangers, allows average SCOP values of around 4.7 and an Ƞs,h of 187%, comfortably exceeding the levels required by ErP.
PERSEA EVO rooftops: efficiency, air quality and active recovery
The new generation of PERSEA EVO rooftops incorporates a multi-refrigerant platform compatible with R454B, as well as inverter and multiscroll compressors. The range reaches capacities of up to 330 kW and air flows of 55,000 m³/h, aimed at large-scale air conditioning projects.
One of the key evolutions is its Full Inverter active recovery system, which improves efficiency in heat recovery and allows the new minimum RITE flow rates to be met even in reduced ventilation scenarios. Coolant charging has also been optimised and EC fans and electronic expansion valves have been integrated to maximise performance.
IGNIS and CELESTE: water-to-water heat pumps for thermal and high-temperature networks
In the high-temperature and network segment of District Heating & Cooling, KEYTER highlighted the IGNIS heat pump, capable of generating hot water up to 85 °C by taking advantage of industrial waste heat. Its configuration with two Bitzer screw compressors and double exchange stage allows almost doubling the COP compared to traditional systems, drastically reducing electricity consumption and emissions.
The range is completed by CELESTE, equipped with Turbocor compressors with oil-free magnetic bearings. The KZC model integrates a spray-type evaporator that reduces the refrigerant charge by up to 70% and allows working with very tight thermal jumps, reaching heat outputs of 628 kW with a COP of 3.81.
"In this edition of C&R, we want to demonstrate that it is possible to combine high efficiency, regulatory compliance and ease of installation in the same product range. Our new heat pumps and rooftops are designed to facilitate the work of the installer and the project engineer, and at the same time reduce energy consumption and CO₂ emissions in buildings," say the KEYTER technical team.
