Discharging, Adding Oil, Evacuating, and Charging Procedures for A/C System: Charging
NOTE:
Evacuate the A/C system before charging.
- Close the low-side valve on the control panel.
- Open the high-side valve on the control panel.
- Enter the amount of refrigerant needed to charge the A/C, making sure to use the correct system of measurement, i.e. kilogram (kg) or pound (lb).
- Begin the charging process.