On rack system controls, why are compressors “stepped” to stop or start?
a. To match which compressors should be running to the load on the rack.
b. To bring on compressors according to the discharger pressure.
c. To prevent wearing out all the compressors at one time.
a. To match which compressors should be running to the load on the rack.
You might also like to view...
What do we actually mean when we refer to “clean” or “pure” water?
What will be an ideal response?
The most common personnel hazard in liquid hydrogen use is the possibility of ____________________ should the liquid contact skin.
Fill in the blank(s) with the appropriate word(s).
Flue gas condensation can be prevented by:
A) Using double wall vent. B) Passing the combustion gases over a dehumidifier before sending them up the vent. C) Using single wall vent. D) Running a dehumidifier in the room with the furnace.
In a(n) ____ the turns ratio is always less than one.
A. step-down transformer B. step-up transformer C. isolation transformer D. autotransformer