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.
According to the constitution, each senator is elected to a six-year term. There are congressional elections every two years. When the constitution was first put into practiceâ¦, one third of the first group of senators served only two years, the second third, four years, and the final third six years. This way, from then on, all senators would serve six-year terms, and one third of them would be up for election every two years.