Draw the damper section of an economizer used on a heating furnace. Label the dampers, and list the “open,” “modulating,

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answerhappygod
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Draw the damper section of an economizer used on a heating furnace. Label the dampers, and list the “open,” “modulating,

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Draw the damper section of an economizer used on a heating
furnace. Label the dampers, and list the “open,” “modulating,” and
“closed” scenarios of each damper for outside-air temperatures of
60°F, 80°F, and 90°F. Assume the supply air set point temperature
is 85°F and the room setpoint is 72°F.
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