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asabino asabino
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6 years ago
What are differential enthalpy sensors used to control?
 
  A) they control the DX coil B) they control the steam grid
  C) they control second stage heat D) they control the economizer

 Q. 2

The contacts in a potential relay are:
 
  A) Modulating type contacts.
  B) Normally closed.
  C) Normally open.
  D) Either normally open or normally closed depending on the compressor.
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bvillan1bvillan1
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6 years ago
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asabino Author
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#2
6 years ago
The fact that I can't marry you for this saddens me.
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#3
6 years ago
Let's keep this professional  Monkey
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