none, unless it is leaking, and then it needs to be found and repaired
I just had 2 pounds of Freon added to my central A/C and was charged $30 a pound.
nowhere
Refer to your manual or call the manufacture for the proper information.
depends on freon type,quanity,hourly rate of hvac co.
How much freon does a 2010 Peterbilt
It depends on what kind of freon you need.
depemds on the car as how much freon it will hold. some cars have a tag saying how much freon the car is filled with. Too much freon is just as bad as not enough freon.
$174,000 annually
2.50 pounds of freon.......
.9 lbs of freon
1.88 pounds of 134
How much freon does a 5 ton heat pump hold?