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Referring to the illustrated single zone HVAC system diagram, what statement is true concerning the damper controls? Illustration GS-RA-09 |
A) The exhaust and outside air dampers are normally open and the recirculation damper is normally closed and all three dampers are controlled by a single pilot air signal. |
B) The exhaust and outside air dampers are normally closed and the recirculation damper is normally open and all three dampers are controlled by a single pilot air signal. |
C) The exhaust and outside air dampers are normally closed and the recirculation damper is normally open and each damper is controlled by its own pilot air signal. |
D) The exhaust and outside air dampers are normally open and the recirculation damper is normally closed and each damper is controlled by its own pilot air signal. |
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Comments |
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Maritime26 - 2020-03-02 15:49:47 Member (4) |
This illustration has been released and is on the exam. |
11steinsj - 2016-03-11 07:30:58 Expired Member (1) |
dunno without drawing |