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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.
They make a special type of window ac for those windows. You should buy the proper unit.
You should gets a couple of plug in fans and place it around your house, to get your air circulating. Then turn on the a/c.
Turn it on the Fan setting and let it run about 20 min. to about 1/2 hr.
If your window unit is low on freon, the unit will not cool sufficiently or blast out warm air. To find out what kind of gas is used in this type of unit, look on the rear panel for a label which should specify what type is required.
Not a good idea to ever store the unit on its side. The oil runs out of the compressor into other parts of the system. But the answer is 24 hours if you read an A/C service manual but 4-6 hours should do it. Just check when you turn it on to see if the air is cold. If not, turn it back off for a while longer.
You push the "knob" in, and turn it anticlockwise, the unit should pull out then.
Around ten years on average if you clean the filters regularly and don't run the unit for excessively long cycles, which would be more wear on components.
doesnt matter,it want hurt.
There should be a name plate on the unit somewhere, which will provide how many pounds need to be in the unit.
Yes in a anderson flexivent window