Title: Check the HVAC air inlet filters, ducts, doors, drains, and air flow.
Course: Diesel Equipment Technology I (20107-I) > Section: Preventive Maintenance and Inspection: Servicing the Cab and Hood HVAC

Checking should include inspecting and testing, based on

- manufacturer guidelines
- the description of normal operation.

ASE 3: VI. Heating, Ventilation, and Air Conditioning: B. Refrigeration System Components (P-1)

Process/Skill Questions:

- What are possible complaints if the HVAC filters and ducts are not clean?
- What concern can be caused by a clogged drain?