If a burner fails to light or the flame sensor fails to detect a flame, what happens to assure the system is safe?

What will be an ideal response?


If the burner fails to light or the flame sensor fails to detect a flame after the gas is turned on for a few seconds, a safety lockout will occur to stop the flow of gas.

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____________________ injector circuits incorporate unique circuitry that applies higher amperage to initially open the injector then lower amperage for the remainder of the pulse width.

Fill in the blank(s) with the appropriate word(s).

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The concrete placement device called a tremie is also described as a _____.

a. spout b. giraffe's neck c. drop chute d. elephant trunk

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Differentiate between those who advocate animal rights and those who advocate animal welfare

What will be an ideal response?

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Indicate whether a box or a trombone coil should be used for steam heating __________________ and hot water heating ___________________

Fill in the blank(s) with correct word

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