The new propane heat pumps support water supply temperatures of up to 70 C and achieve a seasonal coefficient of performance of up to 5.2, according to the British manufacturer.
Heating specialist from Great Britain Diplex has unveiled a new range of air-to-water heat pumps for apartment buildings and commercial applications.
The company said the new product line can be combined with existing heating systems such as boilers, solar thermal installations, biomass systems or photovoltaic installations. It also highlighted that the system is ‘plug-and-play’ oriented, allowing a high degree of prefabrication and simplified hydraulic planning for faster installation and less engineering effort.
The system uses propane (R290) as a natural coolant and is suitable for building heating capacities from 30 kW to 60 kW. It is available in two models, LA2030CP and LA4060CP, with heating capacities of 19.6 kW and 41.8 kW respectively. Both units can be scaled up to 500 kW via a modular cascade configuration.
The smallest unit, the LA2030CP, measures 1,517mm x 1,800mm x 885mm and weighs 370kg. It can achieve a seasonal coefficient of performance (SCOP) of up to 5.20 at average temperatures and operates from -22 C to 40 C in heating mode and up to 45 C in cooling mode, with water flow temperatures ranging from 18 C to 70 C.
The system is powered by a 400 V three-phase power supply, with a maximum electrical input power of 12.5 kW and an operating current of up to 22 A. It features IP24 protection, phase monitoring and circuit reversal defrost. Heat output ranges from approximately 6.8 kW to more than 21 kW, depending on operating conditions.
The LA4060CP measures 1,764 mm x 1,970 mm x 1,000 mm and weighs 570 kg. According to the manufacturer, it can achieve a SCOP of up to 4.72 at average temperatures. The cooling capacity varies from approximately 13.8 kW to 32.6 kW.
The unit has standard threaded heating connections and is designed for a 400 V electrical supply with C50 protection and an IP24 rating. The maximum power consumption is 26 kW, with a power factor of 0.99 and an operating current of up to 40 A.
“Our LA4060CP model achieves a remarkably low sound power level of just 54 dB(A), helping buildings meet stringent acoustic requirements,” the company said. “Whether for offices, care homes, educational buildings or mixed-use applications, the Dimplex R290 Latitude C combines high efficiency, low noise and long-term environmental responsibility.”
Flexible interface options allow each LA4060CP heat pump to be integrated into a higher-level building management system, with scalability built into the design from the start, the company said. It added that up to 14 units can be operated in parallel and managed in a simple and intelligent way through the WPM Touch Master.
Additionally, the company noted that system monitoring can be performed through the Dimplex Home app, which is available for free in a basic version, while an extended premium version offers additional advanced expert features.
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