Using the induced draft sequence chart in Figure 92-4, what should be checked if the induced draft fan comes on but the igniter is never energized?
What will be an ideal response?
Check to see if the vent has the correct draft Check for obstructions in the vent
Check the draft pressure switch
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What was the second step in the evolution of digital programming?
What will be an ideal response?
Which of these system types utilizes a receiver-drier?
A) Variable Displacement Thermostatic Expansion Valve System B) Cycling Clutch Orifice Tube System C) Variable Displacement Orifice Tube System D) None of the above
Chandeliers are a type of _____.
a. surface-mounted lighting fixture b. recessed lighting fixture c. suspended lighting fixture d. track-mounted lighting fixture
When using a CAD system, specific points in geometry may be located using the GRID function
Indicate whether the statement is true or false