What guidelines should you follow when selecting and installing air terminals?
What will be an ideal response?
In general, air terminals should:
| ? | extend above the object to be protected, not less than 10 in. (250 mm) or more than 36 in. (900 mm); |
| ? | be placed on ridges of gable, gambrel, and hip roofs; |
| ? | be placed on the perimeter of flat roofs at intervals not exceeding 20 ft (6 m) and within 2 ft (600 mm) of the edge. |
| ? | be placed in the center of a roof area at intervals not exceeding 50 ft (15 m); |
| ? | be placed on dormers and chimneys, except when these projections are protected by other terminals. |
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What is the difference between line scanning and area scanning?
What will be an ideal response?
How is heat pump Heating Seasonal Performance Factor, HSPF, calculated?
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