Technician A says that a self-test DTC identifies a hard fault. Technician B says that a memory DTC always represents a soft fault. Who is correct?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B
Answer: A
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a. for refrigerant piping b. to supply gas to a furnace c. as condensate piping d. to supply combustion air
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A. actual productivity does not meet anticipated productivity. B. subcontractors or materials suppliers fail to meet obligations. C. takeoff quantities are too high. D. takeoff quantities are too low.
The accompanying figure illustrates the steps for drawing an arc in combination with other arcs. Describe step 3.
What will be an ideal response?
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A) Fan coils. B) PTAC. C) Dual duct VAV. D) Chilled beam. E) Fan terminal units.