As shown in figures "A", "B", "C", and "D" of the illustrated PLC controlled heating system, what input requirements must be met for the circulating pump #2 to be running? See illustration EL-0260.
A
The space air sensor contacts must be closed and the boiler must be firing.
B
The hot water tank sensor contacts must be closed and the boiler must be firing.
C
The space air sensor contacts must be closed and the boiler must be idle.
D
The hot water tank sensor contacts must be closed and the boiler must be idle.
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Question 1 / 205eccefa5bacbc34ba4d4887d
Question 1 of 205eccefa5bacbc34ba4d4887d
As shown in figures "A", "B", "C", and "D" of the illustrated PLC controlled heating system, what input requirements must be met for the circulating pump #2 to be running? See illustration EL-0260.
As shown in figures "A", "B", "C", and "D" of the illustrated PLC controlled heating system, what input requirements must be met for the circulating pump #2 to be running? See illustration EL-0260.