Sorting through pressure switch strengths and weaknesses makes specifying the correct one a snap. Pressure switches act as safety devices, alarms, or control elements within a system. In its simplest ...

[Editor's note: This is the second installment of a two-part series on head pressure control.] In part 1 of this article, on the fundamentals of head pressure control ("Fundamentals of Head Pressure ...

In last month’s column [“Automatic Pumpdown Systems,” Nov. 5], we talked in general about the automatic pumpdown cycle and why it is the only sure remedy for refrigerant migration to a compressor ...