A refrigerant blend is two or more refrigerants mixed together to form a new refrigerant. All 400 Series refrigerants (e.g., R-404A, R-448A, R-449A) are classified as blended refrigerants. One of the ...
As buildings age, so do the major central equipment within the building, making it a prime opportunity for a boiler system retrofit. Older systems typically are made up of non-condensing boilers that ...
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