After shutdown of a centrifugal chiller is initiated, the compressor, chilled-water pump, and oil pump stop but the tower fans continue to run. The most likely reason is the _____.
a. stop-to-start timer is activated
b. compressor start relay is energized
c. condenser water temperature remains high
d. recycle shutdown mode has been activated
c. condenser water temperature remains high
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Which is least flexible for adding or changing zones after installation?
A) Multiple zone VAV. B) Dual duct VAV. C) VAV Multizone. D) PTAC. E) Fan coils.
The DOT-approved cylinder used for recovering refrigerant is gray and yellow.
Answer the following statement true (T) or false (F)
A(n) ____________________ source refers to original information not previously summarized or reported by someone other than the person or group responsible for the information.
Fill in the blank(s) with the appropriate word(s).
The goals of most sustainable energy codes and standards are:
A) Improve building efficiency, reduce waste, and reduce economic impact. B) Improve financial efficiency, reduce construction delay, and reduce economic impact. C) Improve energy efficiency, reduce waste, and reduce environmental impact. D) Improve construction efficiency, reduce cost, and reduce construction time.