The most sophisticated Water-to-Water Heat Pump obtains AHRI Certification
Although the AHRI Standard (13256-2) was never designed to truly reflect the seasonal efficiency of such a sophisticated heat pump, obtaining this Certification has cleared the way to qualify for & obtain NYS Clean Heat Rebates. The NetZero heat pumps are available in three nominal capacity sizes 9, 12 & 22 KW (30.7, 40.9 & 75.1 KBTU/Hr) the AHRI ratings are as follows:
It is vitally important to understand that these ratings should not be used to compare to conventional water-to-water heat pumps to determine relative seasonal efficiency. The following graph illustrates the significant improvement in COP during the vast majority of hours where the NetZero adapts to meet these constantly changing partial load conditions:
To illustrate this with a real world example provided by the integral remote monitoring capability, our friends at Dailey Electric installed a NetZero 22 KW in a Ground Loop Application back in October and the following screenshot of the remote monitoring illustrates a year-to-date COP (aka PF for Performance Factor or SPF for Seasonal Performance Factor) of 5.6 and illustrates the following monthly COPs – Oct = 7.7; Nov = 5.7; Dec = 5.1 & Jan = 4.8. All of these clearly exceed the AHRI Ratings.
I want to thank all the folks at Dailey Electric for their desire and trust to lead the way with these high performance and sophisticated products, and for their hospitality when they allowed us to use their facility as the first of many in the field training programs that we are planning for 2022. Please contact us if you are interested in attending.
At our own shop, we are installing a NetZero in a Multi-Source Application. We will be using our Artesian Well (when it’s flowing), a 1,000 gallon Solar Heated Tank (as long as the sun shines) and if neither of those are available we will use the outside air.
If you want to learn more about the NetZero, I encourage you to watch this video, it is very informative and worth watching just to enjoy Alberto’s passion – https://www.phoenixenergysupply.com/netzero/