What duration options does the surface de-ice timer allow for cycles?

• A. 1 minute and 2 minutes
• B. 1 minute and 3 minutes
• C. 2 minutes and 3 minutes
• D. 3 minutes and 5 minutes

Answer: (B)

Surface de-ice timing is about how long a single de-icing cycle runs. The system provides two preset durations for that cycle: one minute and three minutes. These options let you tailor the de-icing effort to the icing situation while controlling electrical load and heat exposure. A shorter 1-minute cycle is typically used for light surface icing, while a longer 3-minute cycle covers more persistent or heavier icing. Other durations aren’t available, so you choose between the shorter and longer preset to match the need.