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The cylinder should be evacuated
Negative 30 psi should do it.
The cylinder may be too heavy too lift
Goggles, and gloves.
buy a charging kit of r-134a refrigerant attach to the low-side charging connection (NEVER THE HIGH SIDE) the low side should have a dust cap that needs removing
if system is empty, u need to charge with correct amount of oil and refrigerant. the oil actually carries the refrigerant in the system if just recharging, buy the refrigerant that has oil already added, these are available at most auto stores
200.4 Psig
A 1998 Nissan Altima uses 134a refrigerant. When charging the A/C system the correct pressure should always be used. An undercharged system will not cool properly and an overcharged system can cause the lines to fail.
Why do you want to refill it is there a leak? It depends on the type of refrigerant and how much refrigerant will be needed. Check with 3 or 4 heating and cooling service establishments and get an average of what there charging in your area.
Why do you want to refill it is there a leak? It depends on the type of refrigerant and how much refrigerant will be needed. Check with 3 or 4 heating and cooling service establishments and get an average of what there charging in your area.
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Refrigerant should be removed from the condenser outlet when: