Air-conditioning reject heat makes hot water

Air conditioning, Daikin, heat recovery, DHW

Daikin’s HXHD hydrobox makes it possible to recover heat from a VRVIII air-conditioning system to produce domestic hot water or provide heating to radiators or underfloor heating when combined with the REYAQ-P heat-recovery system (pictured). During Winter, when not enough recovered heat is available, the outdoor unit takes up the difference to produce DHW 17% more efficiently than a traditional gas-boiler solution.

The hydrobox includes all the connections, pumps, filter and valves to connect to a water circuit. It can be stacked with a DHW tank. Intelligent control of water temperature eliminates the need for a mixing valve by producing precisely the required leaving water temperature. Alternatively, a weather-compensated floating setpoint can be established for space heating.

Leaving water temperatures of up to 80°C can be achieved without an auxiliary heater. Hot-water tanks with capacities from 200 to 500 l are available.

For more information on this story, click here: Nov 2011, 172
Related links:
Related articles:



modbs tv logo

Can I use my Air Conditioning system?

If your system hasn't been used in months it's an important question. 

New air-cooling system from Weiss Technik has unique four-stage safety concept and innovative thermal disinfection

The Coronavirus outbreak has increased awareness of hygienic room climate issues, ventilation and air-conditioning systems in public buildings. If planned poorly or not serviced properly, air conditioning units can quickly turn into transmitters of disease-causing germs.

Calendar
  • Calendar Icon
    11 November, 2020, 10:00 - 12 November, 2020, 16:00
    elemental
  • Calendar Icon
    20 November, 2020, 19:00 - 23:59
    CSA Awards