the electronics dry-air branch is to provide several electronic equipments with air that is dry enough for
proper operation. Microwave components, such as waveguides, cavities, and power amplifiers, require
dry air to prevent arcing and internal corrosion. The electronics dry-air branch must satisfy the dry-air
requirements of the electronic user equipment. Dry air of less than the required specifications will degrade
equipment performance. It may also incur major repairs, overhaul, or replacement of expensive electronic
Figure 4-12.Typical lp air system layout.
Air Control Panel
The dry-air distribution system (figure 4-12) delivers dry air to each air control panel of the user
equipment. The air control panels are used to control and regulate the dry-air pressure to that required by
the electronic user equipment.
The air control panel (figure 4-13) provides a means of monitoring the dry-air supply to the user
equipment. The type of control panel used varies, depending on the outlet pressure and flow rate required.