Not all HVAC system are required to seal and insulated. Which ducts are not required to be sealed and insulated? A. Exposed ducts on roof B. Aluminum ducts in either an attic or crawl space C. Supply and or return ducts located in the conditioned space D. Return ducts located in a ventilated attic space
Not all HVAC system are required to seal and insulated. Which ducts are not required to be sealed and insulated? A. Exposed ducts on roof B. Aluminum ducts in either an attic or crawl space C. Supply and or return ducts located in the conditioned space D. Return ducts located in a ventilated attic space
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter37: Air Distribution And Balance
Section: Chapter Questions
Problem 14RQ
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Question
Not all HVAC system are required to seal and insulated. Which ducts are not required to be sealed and insulated?
A. Exposed ducts on roof
B. Aluminum ducts in either an attic or crawl space
C. Supply and or return ducts located in the conditioned space
D. Return ducts located in a ventilated attic space
Expert Solution
Step 1
A) Exposed ducts on the roof need to be insulated to increases the thermal efficiency of the system and prevent the loss of cold air. so it is not the correct option.
B) The ducts in the crawl space ar need to be insulated to prevent heat loss in the crawl space and also to regulate the temperature.
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