If there is not a pressure tap on the suction line(the larger pipe comming off of the compressor) you need to install a piercing valve with a 1/4" flare for the refrigerant hose and charge. Depending on the age of the window unit it might be worth buying a new one.
How do i Recharge AC Unit for a 1998 Dodge Stratus
No. First off, the trustworthiness of any such kit sold at Walmart is questionable. Secondly, the kits are intended for automotive AC systems, and will come with R134a refrigerant... window units use a different type of refrigerant (often R22, from my understanding). Different refrigerants cannot be blended, and doing so will ultimately damage the AC unit.
The low side.
Well, if the unit was originally meant to be recharged with the old freon, a kit is needed to allow recharge with the new.
Yes in a anderson flexivent window
take it to a dealer.
Instantly.
A mini-split AC unit gas filling costs are relatively less than a central or window AC. To refill Freon gas in this type of AC, you will need to spend $100 to $ 300. Central AC gas refilling costs around $80 to $140 per pound, but to recharge the whole unit it will cost you $200 to $ 500.
"Which one is better split AC or window AC?""Which one is better split AC or window AC?"
They make a special type of window ac for those windows. You should buy the proper unit.
it exhaust the air
You may need to recharge the cooling chemical in your unit.