Fan coil units used in medium temperature cases are usually defrosted using ____.
A. electric heat
B. hot gas heat
C. hand scraped
D. unit off cycle time
Answer: D
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What will be an ideal response?
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One of the major accomplishments of the Egyptian civilization was the development of irrigation systems through the use of hydraulic engineering
Indicate whether the statement is true or false
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What will be an ideal response?
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