5-10 minutes5-10 minutes to fill in one pound of Freon. If your unit is low on refrigerant, you will need 2-4 lbs. per ton of AC cooling to refill the refrigerant to optimum levels.

How long does it take to do Freon?

Normally, freon takes a 15 to 30 minutes to settle in an air conditioner. But as a good rule of thumb it is better to wait for the maximum time to make sure “just in case.”

Is 2 pounds of Freon a lot?





Amount of Freon in Units

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 A/C unit determines its size and the amount of space it can cool, with larger tonnage units providing greater cooling abilities.

How long does it take for an AC recharge to kick in?

Your Ac should start blowing cold soon after the recharging is done. Some systems might take longer to kick in, but that shouldn’t be over two hours after the recharge process. If the Ac doesn’t get cold after recharging, any of the below reasons could be the problem.

How do you know how much refrigerant is put into an AC system?

Great question. The only way to really know how much refrigerant is in your system (and therefore how much we should put in) is by checking the system’s pressure with a pressure gauge. To check your system’s pressure you will need to know location of your low side port on your A/C.

Can AC lose Freon without a leak?





While a fully operational AC unit should not lose any Freon, a typical unit that requires servicing and maintenance can, even without a visible sign of a leak.

Will low Freon damage a compressor?

Low refrigerant also damages the compressor, the “heart” of the air conditioner where the liquid refrigerant is squeezed into a high pressure gas. The compressor is designed to match the refrigerant charge, and if it drops, the compressor will start to overwork and will soon break.

How many pounds of Freon does a home AC unit hold?

Typical residential air conditioning units hold from 5 to 15 pounds of R-22. Even more, according to the EPA, production and sale of R-22 be cease completely by 2020.

How do you know if your AC unit is low on Freon?

Five Signs your AC is Low on Freon

  1. It takes much longer than it should to cool off your home. …
  2. Your utility bills are higher than usual. …
  3. The air coming out of your vents isn’t cold. …
  4. Ice has started to build up on your refrigerant line. …
  5. You hear loud or unusual noises coming from your unit.


How much Freon does a 3.5 ton AC unit hold?

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.

How much Freon does a 2 ton AC unit hold?



approximately 6 pounds

You can safety assume that this 2 Ton air conditioner system contains approximately 6 pounds of Freon total in a normal 25 foot line set installation with a matching coil. Add 2 pounds to the outdoor unit specification will cover most units.

How many pounds of Freon does a 3-ton air conditioning unit hold?

12 pounds

The 3-ton AC or Heat Pump with a 35 foot lineset will need a total of about 12 pounds of refrigerant. The lineset, coil and unit are included.

How many pounds of refrigerant does a 4 ton unit hold?



The rule of thumb is 2 to 4 pounds of refrigerant per ton of air conditioning unit.

How much refrigerant does a AC unit take?

The General Rule of Thumb

When estimating the amount of refrigerant in a residential A/C unit, the general rule that is used is in the 2-4 pounds per ton of cooling. Say, for instance, recharging a 3-ton A/C with a 35-foot line set from empty level will need an approximately 6-12 pounds of refrigerants.

What is the cost of freon per pound?

Freon costs $50 to $150 per pound to refill a home AC and $4 to $21 per pound when buying wholesale. A 25lb tank of R410A costs $75 to $200. *Most central air conditioners need 2 to 4 pounds to recharge the refrigerant. Some HVAC companies have a 3-pound minimum.

How much is R-22 per pound?



WHAT PRICE ARE YOU PAYING FOR R22 REFRIGERANT? The price of R-22 ranges between $13 to $30 per pound to the contractor (and many times that by the time it is billed to the end user) and the price keeps rising as the last remaining supplies are used up.

Can I recharge my home AC myself?

Don’t. The U.S. Environmental Protection Agency (EPA) recommends not replacing Freon or refrigerant by yourself for both health and environmental reasons. Only an EPA licensed technician is legally allowed to reclaim Freon.

Why is R22 so expensive?

R-22 refrigerant is so expensive because there’s such a limited supply of it left. You see, R-22 is an “ozone-depleting substance” and is extremely harmful to the environment. Because it’s so dangerous, countries around the world have been slowly phasing out this refrigerant since 2010.