No, there is no scientific proof of positive seasonal performance improvements from frequency controlled compressors
No, R407C is considered to be the best refrigerant by the heat pump sector for delivering optimum seasonal performance
No, the global warming potential (GWP) of R407C is 1,610 and for R410A 1,890, making R407C less damaging for the environment
Seasonal performance express the performance of a heat pump over a full year given the heating distribution system, hot water system and the actual customer demand. Proper dimensioning, installation and commissioning is needed to obtain highest possible seasonal performance. Seasonal performance is the standard measure for Danfoss heat pumps when designing and building heat pumps, as seasonal performance is the real measure of efficiency
No, performance at rating points merely expresses the efficiency in a number of points typically measured in a laboratory, and has no direct relation to the seasonal performance of a heat pump
In theory yes, but in practice no. DX systems needs to be refrigerant-charged on site, hence no possibility to do factory tests or factory performance optimisation. Similarly the copper collector can easily be damaged during installation, which will lead to serious reduction and loss of efficiency
Yes, Danfoss control system properly commissioned will work perfectly alright with single room controls
No, neither is good, the heat pump must be adequately sized for the specific heating distribution system and the end-user requirements, dimensioning done via the HPC program will ensure that you select the right sized HP
No merely considering these dimensions will not lead to choosing a right sized heat pump, proper dimensioning need to be done by considering climate data, insulation level or present energy consumption, heating distribution system, hot water and heating demands etc. This needs to be done in advanced programs like the HPC dimensioning software
Do you have a questions for us about the above products? Or would you like to get a quote from us?
We kindly ask you to contact your local Danfoss sales office, so we can serve you in the best possible way in your own language.