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Yes, depending on how long the lines are. The unit should have a sticker showing the unit's charge, then you have to figure the lines and the coils in the furnace.
That sounds reasonable to me. I have in my home, a very large (22,000 BTU) through-the-wall air conditioner, designed to cool three large rooms. It uses 3.5 lbs of freon. A whole-house unit I can easily see using as much as 9 lbs.
An ICP 3 ton air conditioning unit holds between 3 and 6 pounds of refrigerant. The exact amount varies based on the size of the system and the length of tubing used.
60000000000000 pounds
100 pounds
2.50 pounds of freon.......
1.5 lb of Freon or about 2 an 1/2 12 oz cans.
1.8 pounds
1.75 lbs. of refrigerant
This A/C sysytem holds 2 pounds of 134A
if the a/c is empty it can hold 1.9 to 2.1 pounds of freon
A 1990 Cadillac Deville air conditioner should hold 46 oz. R12 Freon. This should be verified through the owners vehicle manual.
On the older cars its best to start out with 3 pounds of freon and work from there reading both the high and low pressures on the gauges assuming you are using R-12 freon and the a/c system is factory........
how much freon does a 2004 kia soenrto 3.5 hold for a/c
How much freon does a 5 ton heat pump hold?
How much freon does 99 Tahoe with rear ac hold
.9 lbs of freon