No easy way of doing this. These units do not come with service valves.
To put freon in a window air conditioner, you need to first locate the service valve on the unit. Then, connect a charging hose to the valve and slowly add the appropriate amount of freon. It's important to follow the manufacturer's instructions and safety guidelines when handling freon.
Not by yourself, and not a window unit at all.
$100
Yes you can if you have the tool, knowledge, and of course the freon. Youtube has instructional videos to help you.
Is never required unless damaged. It is the last resort and a bad sign for the unit if required.
The refrigerant (freon) in any air conditioner should last the life of the unit. If not, you have a leak.
The recommended type of freon for a window AC unit is R-410A.
Small appliance repair companies will do it, but the cost is generally higher than a new unit.
Depends on the size of the unit and when it was built. Modern A/C units contain no Freon (R12). It was banned in 1996. Call a home A/C professional.
To properly install a window air conditioner in your home, follow these steps: Choose a suitable location near a power outlet and with enough space for the unit. Open the window and measure the width to ensure the air conditioner fits. Install any mounting brackets or supports provided with the unit. Place the air conditioner in the window opening and secure it in place. Close the window securely to seal any gaps. Plug in the unit and test it to ensure it is working properly. Follow the manufacturer's instructions for maintenance and cleaning to keep the unit running efficiently.
actually this is a pet project of mine to produce a Freon-less A/C unit
Never. A properly operating AC unit will have no leaks, thus never need recharging.