Which statement confirms that the ON/OFF state does not affect heating when 115VAC is applied?

• A. The drain masts heat only when the ON/OFF state is ON.
• B. The ON/OFF state can influence heating even when 115VAC is applied.
• C. The drain masts heat whenever 115VAC is applied to the controller, regardless of the ON/OFF state.
• D. The drain masts heat when 230VAC is applied.

Answer: (C)

Heating in this scenario depends on the presence of 115VAC, not on the ON/OFF input. If the controller delivers 115VAC to the heating elements regardless of whether the ON/OFF switch is on or off, then heating will occur whenever that voltage is applied, showing no influence from the ON/OFF state. The statement that matches this behavior is that the drain masts heat whenever 115VAC is applied to the controller, regardless of the ON/OFF state. The other options imply dependence on the ON/OFF state or involve a different voltage, which would contradict the described setup.