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kimmykgirl19 kimmykgirl19
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6 years ago
Gas pressure should be checked at the rooftop valve prior to installation. The gas line pressure for natural gas in inches of water column should not exceed
 
  A) 10.5 in wc B) 2 psi C) 5.0 in wc D) 3.5 in wc

 Q. 2

Proper height above the roof is important when installing a heat pump rooftop unit
 
  A) to allow the condenser to take advantage of local prevailing wind
  B) so that the unit can be serviced from underneath
  C) to insure adequate combustion air to the burners
  D) so that snow does not block airflow through the outdoor coil
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tobeddstobedds
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6 years ago
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kimmykgirl19 Author
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#2
6 years ago
I can't even begin to explain how much your help meant to me!
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#3
6 years ago
Happy to hear that, good luck with the rest of them
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