Name the area between the side and top faces of the fireplace.
What will be an ideal response?
fireplace opening
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When a parallel fan-powered VAV box is in the heating mode, the primary air damper is _____.
a. fully open b. fully closed c. at its minimum position setpoint d. used to control heating airflow
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Define the term lift dwell.
What will be an ideal response?
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What is the approximate condensing temperature of any R22 unit at 195 psig?
a. 100° b. 110° c.115° d. 125°
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Why do low energy radiant heat systems use 20-50% less fuel than conventional heaters?
What will be an ideal response?
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