General Rule of Thumb The general rule amount that can be estimated is in the 2-4 pounds per ton of cooling for your system. For example: 3-ton AC or Heat Pump with a 35 foot lineset will need a total of approximately 6-12 pounds of refrigerant, to fully recharge from empty. This includes the lineset, coil and unit.Click to see full answer. Likewise, how many pounds of r22 are in a 4 ton unit?For example, a 4-ton AC with a very bad refrigerant leak that’s been ignored for months may need a complete fill-up, which requires approximately 16 pounds of R-22.Similarly, is 2 pounds of Freon a lot? As for how much Freon is in each unit that could be lost due to damage, the general rule of thumb is 2 1/2 pounds of refrigerant per ton of cooling. The tonnage of an AC unit determines its size and the amount of space it can cool, with larger tonnage units providing greater cooling abilities. Subsequently, one may also ask, how many pounds of Freon does a 5 ton unit take? The rule of thumb is two to four pounds of refrigerant per one ton of your unit. You should always check the specifications of your unit. However, most home air conditioning units are between one ton and five tons. Anything over five tons is considered a commercial grade unit.How many pounds of refrigerant does an AC unit need?The rule of thumb is two to four pounds of refrigerant per ton of your air conditioning unit. Now most home air conditioning units are between one ton and five tons.
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