Which of the following is true concerning the class "D" air conditioning system shown in the following illustration? Refer to Illustration GS-RA-42 Illustration GS-RA-42: the U.S. Coast Guard has not released this illustration.
Official USCG Answer & Rule Citation
Correct Answer: Option D — The duct thermostat determines the amount of water flow circulating through the cooling coil.
In chilled water air conditioning systems, space or duct thermostats regulate motorized control valves governing chilled water flow through the cooling coil to maintain desired air temperatures.
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