Conair VL Series manual C.Use Of Plain Glycol, D.Automotive Based Antifreeze

C.USE OF PLAIN GLYCOL:

1.Even through they do lower the freeze point, plain glycols are even more corrosive than water. The corrosion rate of plain ethylene glycol on iron, for example, is more than 2.5 times faster than plain water. On steel, it is 4.5 times faster.

D.AUTOMOTIVE BASED ANTIFREEZE:

1.SHOULD NEVER BE USED! Automotive antifreeze contains silicate based inhibitors, which are compatible with automotive components. In an industrial application, the silicates will leach out and form a gel-like substance on the heat transfer surfaces and reduce cooling efficiency of the system. These silicates have shown to significantly reduce the lifetime of pump seals.

E.MAINTENANCE RESPONSIBILITY:

1.A hygrometer should be used on a regular basis to determine the mixture strength according to freeze point. The freeze point temperature should be 25°F below the lowest required setpoint (see charts on page 35 and 37). Water will evaporate from the mixture, and if you continue to add a premixed solution, eventually you will have too much glycol. It is necessary to add water or glycol to maintain proper freeze point temperature. The device pictured is by far the most accurate and easy to use for maintaining and checking for proper glycol levels.

Contact: Misco Products: 1-800-358-1100 Model #7084VP

Page: 38 VL Series Portable Chillers, 0.25 to 1.5 Tons UGH020/0301