In a chemical engineering plant, there's a continuous process where a certain chemical compound needs to be purified through distillation. Write a function to simulate the start$-$up sequence of the distillation process, which involves initializing various equipment such as pumps, heaters, and condensers.

Requirements

Within your function, store$/$hard$-$code the following three strings in an array $($in order$)$ : Pumps, Heaters, Condensers

Your function will take a single argument. The argument will be used to acquire the appropriate element from the array.