Control Panel Functions

A charging station will have controls and indicators to allow the operator to control and monitor the operation in progress. These can be expected to include the following:

1. Main Power Switch
   • Supplies electrical power to the control panel.
2. Display
   • Shows the time programmed for vacuum.
   • Shows the weight of the refrigerant programmed for recharging.
3. Low-Side Manifold Gauge
   • Shows the system's low-side pressure.
4. High-Side Manifold Gauge
   • Shows the system's high-side pressure.
5. Controls Panel
   • Controls the various operating functions.
6. Low-Side Valve
   • Connects the low side of the A/C system to the unit.
7. Moisture Indicator
   • Shows whether the refrigerant is wet or dry.
8. High-Side Valve
   • Connects the high side of the A/C system to the unit.