DunAn Microstaq Inc.’s HC-MSEV USHC Retrofit Kit was developed for commercial HVACR systems with 10 to 25 tons of cooling capacity. The primary function is to improve evaporator efficiency by controlling superheat toward a target setting quickly and precisely. This tight, continuous control of superheat under dynamic heat load conditions enables optimal system performance, lessening the work for the compressor and translating to improved system efficiency. It’s these design qualities that netted the retrofit kit the gold award in the HVAC Light Commercial Equipment category of this year’s Dealer Design Awards contest.
“The kit comprises an expansion valve and integrated controller,” said Parthi Arunasalam, CEO, DunAn Microstaq. “The integrated controller is different because it’s truly integrated — it has a pressure sensor, temperature sensor, and machine intelligence all embedded into a palm-size package. There are lots of amazing valves on the market. The catch is finding a valve and controller that can be used across a variety of refrigerants without the end user trying to figure out how to configure or program it. These controllers already come with four default refrigerants and can be expanded up to 18 different refrigerants. And the nice thing about it is that a customer or contractor looking at new refrigerants about to be delivered into the market can ask us to embed the new refrigerant characteristics to try with the controller.”