During the wizard-driven startup and commissioning process for the cooling unit, commissioning the cooling system is a mandatory step. The cooling system, which includes core components like the compressor and electronic expansion valve (EEV), is the primary function of the air conditioner. Ensuring it operates correctly is fundamental to the unit's purpose. While other components like fans, pumps, and humidifiers are important, their commissioning can be deselected if they are not installed or if a specific check is not required at that moment.

A. Commissioning the indoor fans is a default but not mandatory step; it can be deselected during the wizard startup process.

B. Commissioning the condensate pump is optional and only necessary if the component is installed and requires a specific check.

C. Commissioning the humidifier is an optional step, as not all units are equipped with a humidifier. It can be deselected.

- Huawei NetCol5000-A(025, 042, 065) In-row Air Cooled Smart Cooling Product User Manual. (2022). Section 7.2 "Wizard Startup". The text explicitly states, "Commissioning the cooling system is mandatory. You can deselect other commissioning items that are not mandatory."