The economizer on a commercial packaged air conditioning system
A) Limits the operating cycles of the system to no more than 15 minutes
B) Reduces the voltage to the compressor during peak loads to save power
C) Uses outdoor air to provide cooling at low ambient temperatures
D) Reduces the indoor blower speed during peak loads to produce cooler air and save energy
C
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Explain how fibrous loose insulation is made, and describe its properties and applications.
What will be an ideal response?
Describe the proper lifting techniques that should be used by construction personnel
What will be an ideal response?
This is a covering that is placed over the flue for protection from the elements:
A. chimney liner B. flue C. chimney anchors D. chimney cap E. chimney hood
The datum-target symbol is approximately ____________________ times the height of lettering on the drawing.
Fill in the blank(s) with the appropriate word(s).