Introduction

In designing Industrial Control panel, the air must enter on the lower part of the control pane; and it must exit at the upper part of the control panel

Reasons

• Hot air is lighter than the cold air it means that the hot air inside the control panel is easier to exhaust if you will put a fan at the upper part of the control panel.
• It is easier to make the cold air to enter the control panel if you will put a fan at the lower part of the control panel.