Winner..!! Danfoss DHP-AQ delivers the biggest savings

To contact us Click HERE

Danfoss - The best "Again"

Of the eleven heat pump models in the test, Danfoss DHP-AQ yields the biggest savings and the Danfoss heat pump also receives top ratings when it comes to hot water temperature, low sound levels and low energy losses.

The Swedish Energy Agency has conducted an extensive test of air/water heat pumps. The new Danfoss DHP-AQ has the best annual efficiency*, and consequently delivers the biggest savings.

“They’re great results, but actually not unexpected”, says Lars Bergen Marketing Director at Danfoss Heat Pumps. “Danfoss DHP-AQ is a newly developed heat pump with a completely new type of control, which ensures the heat pump operates at maximum efficiency in every situation. Our in-house tests have always shown that DHP-AQ delivers first-rate performance in every area. So we’re very pleased that this is confirmed in an independent test of the product.”

“Annual efficiency is the most important factor for the customer. It’s a key parameter when finalizing the choice of heat pump”, says Anders Odell, who leads the Swedish Energy Agency’s testing.

One test result worth noting is the high hot water temperature of Danfoss DHP-AQ. The model used in the test had a 180-litre hot water tank, which supplies 300 litres of 40ºC hot water from the tap. By moving up to a 300-litre tank, you get a huge 500 litres of 40ºC water. The customer’s unique requirements determine the size of the tank – and thanks to the flexibility of Danfoss DHP-AQ, every installation can be tailored in line with these. 

The air/water heat pump takes energy from the outdoor air, and supplies both heat and hot water to the house. Danfoss DHP-AQ heats the house efficiently, even when the temperature outside falls to -20º (C). 

When developing the Danfoss DHP-AQ, the R&D department focussed especially on high performance, low sound levels, user-friendliness and design. With a range of accessory packages and output sizes from 6 to 36 kW, there are solutions for everything from small houses to larger buildings. Moreover, Danfoss DHP-AQ has a built-in cooling function, to lower indoor temperatures during the warmer months. 

Just like Danfoss’ other heat pumps, DHP-AQ delivers considerable cost savings, while also being easy to operate and environmentally sound. The EU has classified the heat pump as a renewable energy source.

*Annual efficiency: A measure of a heat pump’s efficiency, on a yearly basis, incorporating hot and cold periods and the production of hot water. 

• The test includes 12 different air/water heat pumps.
• Nine of the heat pumps are tested in 2011 and three are tested during 2006-2009.
• The test has been conducted by SP (Technical Research Institute of Sweden) on the initiative of the Swedish Energy Agency.
• The test is objective and done according to standard methods. Following methods are included in the test:
• Space heating performance, according to EN 14511
• Sanitary hot water heating, according to EN 255-3
• Sound power level, according to EN ISO 3747, EN 12102
• Calculation of annual energy savings, according to SP-method 0033
• Review of heat pump and documentation
• Read more about the test (Swedish language but can be translated when viewed in Google chrome):

http://www.energimyndigheten.se/sv/Hushall/Testerresultat/Testresultat/Luftvattenvarmepumpar1/ 




A few other things in the test that are worth noting.

• CTC provides only 81 liters of hot water, Daikin only 113 liters

• The way that CTC has chosen to produce hot water, means that you only get 81 liters of 40°C hot water out of a 223 liter hot water tank. To get more hot water, the electrical heater cartridge must be turned on. Also Daikin shows a remarkable low value on this measure; only 113 liters out of a 200 liter hot water tank.

• CTC, Nibe, Toshiba and Daikin could not reach 55°C outgoing temperature to the radiators – a temperature that was required for the test.

• CTC were unable to run at the low level temperature, stated by them selves

• CTC state that their heat pump can run down to -15°C. However, the heat pump sent to the test was factory set for -10°C.

The Swedish Energy Agency is a government agency for national energy policy issues.

• The Agency’s headquarters are in Eskilstuna and it has around 300 employees. Their mission is to promote the development of Sweden’s energy system so that it will become ecologically and economically sustainable.

• Strategic objectives:
• The Agency works to ensure that energy matters are automatically taken into account in relevant social sectors.
• The Agency supports the achievement of the national climate targets.
• The Agency promotes an energy system that is economical on resources and energy efficient, and that uses an increasing proportion of renewable energy sources.
• The Agency works to ensure that there is a safe and reliable energy supply.
• The Agency works for efficient energy markets in which customers have a strong position.
• The Agency is a modern and efficient public authority in all respects.
• The Agency is an attractive employer whose employees are given good development opportunities in a sound working environment.