Question 1

ACMV systems can be subdivided into various types which can be selected based on budget, building capacity, cooling and/or heating load requirements, and needs.

(a)Briefly explain the Direct Expansion system.

(b) With the aid of a diagram, describe a Water-Cooled Chilled Water system.

Question 2

All mechanical ventilation systems require a maintenance programme to minimise the life cycle cost and ensure longer systems life. As a maintenance manager, proposed a bestpractice maintenance plan for the chiller system.