The external water tray is to be used for draining the unit when the internal water tray is full. Position the external water tray under the drain at the bottom rear of the unit then remove the cap and plug and let water fill the tray. This was copied from royal sovereign instructions.
Fergusons n other hvac supply stores sell ac parts, etc...not sure if need hvac license to buy freon, depending where you're located, but I kno can buy freon online, but still not sure if going to ask contractor/hvac # once get to purchasing screen....as to where u need to put freon in that particular model, always ask Google n guarantee somebody made a video somewhere that will pop up, giving u a tutorial on it.
