HVACR NewsMagazine December 2017

S tate, National, Chapter News Tech News

the vacuum switch (closed by the venter motor) on virtually all furnaces today. If your distributor does not carry manometers, over the years I have purchased manometers from Dwyer Instruments (who makes a good one)….They are located at 102 Indiana HW 212, Michigan City, IN 46360. 1-800-872-9141 Hopefully this brief explanation of ‘Water Column Pressures’ will assist someone to better understand the importance of this unit of measurement as it is used in our industry. Have a Good Day!! Richard Clark

102 Indiana Hwy. 212 (P.O. Box 373) Michigan City, IN 46360

2801 21 st Ave. South Suite 160 Minneapolis, MN 55407 612-827-1117