This standard covers electric, air-to-air, space-conditioning appliances that include a refrigerant-to-water desuperheater and have rated cooling capacities of less than 65,000 Btu/h.
File Type:
www
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Regulation/Standards
I scanned and uploaded this book to the Internet Archive 600dpi colour for anyone interested: https://archive.org/details/applications-of-germicidal-erythemal-and-infrared-energy-by-matthew-luckiesh