5yrs
Never! If it's low on refrigerant it has leaked.
The refrigerant (freon) in any air conditioner should last the life of the unit. If not, you have a leak.
It is recommended to refill your air conditioner with refrigerant only when there is a leak or when the system is not cooling properly. Overfilling can cause damage to the system, so it is best to consult a professional HVAC technician to determine the appropriate timing for refilling refrigerant.
It should be located "an arms reach" from your condenser.
should be preformed by proffessionals only
degree air condisner out out
straight from the vent should be around 47 degrees
If you are referring to the sight glass, the liquid beneath the glass should flow clear without bubbles when properly charged with refrigerant.
Is it a new or an old window unit? Assuming your looking to refill it I will assume it is an old window unit which most likely uses R-22 refrigerant. R-22 is an ozone depleting refrigerant that is being phased out but should be available until 2010. There should be a label on the window unit stating which refrigerant is used.
Never, unless you suspect of not cooling then there is a leak somewhere. A repair will need to be performed before recharging.
Depends on the ambient air temperature, humidity level, and type of refrigerant used.
To recharge your air conditioner, you will need to add refrigerant to the system. This should be done by a professional HVAC technician, as they have the proper tools and knowledge to safely and effectively recharge the system. Attempting to do it yourself can be dangerous and may cause damage to the air conditioner.