They are air, calcium chloride brine, sodium chloride brine, alcohol, and similar nonfreezing solutions. The purpose of Class 2 refrigerants is to receive a reduction of temperature from Class 1 refrigerants and convey this lower temperature to the area to be air-conditioned.
Elections for the United States Senate will be held on November 8, 2016, with 34 of the 100 seats in the Senate being contested in regular elections whose winners will serve six-year terms from January 3, 2017 until January 3, 2023.
16 Aug 2016. Congressional elections are held every two years. There are elections for 1/3rd of the Senate (who sit for six years) and for all of the House of Representatives who all stand for re-election after two years. These are held mid-way (two years) through a presidentâs term in office and are called mid-term elections.