Air Conditioning, Heating and Indoor Air Quality Blog

Current Articles | RSS Feed RSS Feed

How many pounds of Freon does my Air Conditioning unit hold?


Recently, we had a costumer inquiring about our tune up services and Freon rates. He was very punctual and asked: How many pounds of Freon does my unit hold? I am not a technician, I answered,  but I would ask to my husband and go back to you with the answer. So, a day after I called him and I am pretty sure you want to know about it.


First of all, Freon is the refrigerant most Air Conditioning units and heat pumps uses to cool down the air. Freon is a government regulated substance, technicians holding an Environmental Protection Agency - EPA certification are only allowed to buy and handle it.


Second, it is impossible to know exactly how many pounds of Freon your unit will need, until a certified EPA technician set a manifold gauge with a hose attachment in your compressor. AC units do not consume Freon in a normally functioning system. If the pressure reading on the gauge is lower than the manufacturer’s recommendation, which can be found in the data plate on condenser, then you have low Freon which because of a leak in your system. That needs to be repair. Below, we show you a picture from Saavedra AC Heating in Texas, in which they are repairing by welding a freon leak.


freon leakage repair











So how many pounds of refrigerant (commonly known as Freon) do your unit need? It depends of many factors, such as:

  • The tonelage of your unit
  • The length and size of the cooper lineset. The farther the distance between the condenser and the evaporator coil, the more Freon your unit will need.
  • The size of your evaporator coil. The larger the evaporator coil, the higher efficiency of your Ac, and more Freon to fill it.
  • The type of your system. A split system in which the condenser unit is outside and the air handler, furnace and coil are inside the house, needs to use more Freon due to different sizes of coils and linesets. A package system, has everything in one cabinet outside the house, all the line connections are self contained in the same box.

It is not possible to give a precise answer. However, the general rule amount that can be estimated is the 2-4 pounds per ton of cooling of your system. Remember, the only way to know  for sure is to contact your Ac manufacturer, read the back plate in your unit and ask your Ac company to give you that info.

Finally, if you need anything regarding your AC and Heating system, such as, repairs, replacements, service and maintenance, we are a call away and ready o serve you with professionalism, the best equipment and workmanship. (818) 378-5212


Thank you,


This is new to my knowledge. Good thing I hop into your site. Thanks for sharing!
Posted @ Thursday, October 04, 2012 8:15 AM by heating and cooling coraopolis
A very useful info you have shared here about central air conditioners, appreciate this work.
Posted @ Monday, May 06, 2013 2:23 AM by Steve Dune
Very great and useful info you have shared here about air conditioners, appreciate this work.
Posted @ Monday, May 06, 2013 11:59 PM by Jack Reed
If you're searching for commercial air conditioners to meet your business needs, we have just what you're looking for. Bergen Refrigeration Inc. light commercial comfort systems are not only steady performers that will work dependably year in and year out, they're also easy to install and service because of their application, flexibility and accessibility features. Our rooftop air conditioning options and commercial HVAC units will also help you address workplace environmental issues, such as indoor air quality and reduced energy consumption. 
Posted @ Monday, August 26, 2013 3:02 PM by Dominick
Its nice blog you shared here.... Heating and Cooling Toronto Mississauga 
Posted @ Monday, September 16, 2013 11:48 PM by alexjohn
Very great and useful info you have shared here about air conditioners 
High Efficiency Gas Furnaces 
Posted @ Thursday, October 03, 2013 4:22 AM by williamjames325
Great! I am sure this is going to help a lot of people. 
Insulated Cooler Panels
Posted @ Saturday, December 28, 2013 1:45 AM by Rcs Tampa
Good blog about heat and cooling system................. 
Heating and cooling Mississauga 
Posted @ Wednesday, January 08, 2014 6:20 AM by angelineprincess5
Thanks for sharing this- good stuff! Keep up the great work, we look forward to reading more from you in the future!   
Posted @ Tuesday, February 25, 2014 12:47 AM by R22 gas
I am lucky that i read this great information, it have very useful information, thanks a ton for providing this important information 
Posted @ Saturday, March 15, 2014 3:14 AM by R22 phase out
I completely agree with you, it's important to ask for the important detail to your AC manufacturer. You can get a range of air-conditioning system like Commercial ACs, Ducted System, Split ACs, etc. from Blue Star Ltd a leading manufacturing central air conditioning company.
Posted @ Thursday, March 20, 2014 6:33 AM by Antra Pandey
Hello all, I would just like to clarify the comment " EPA certified technician ". The EPA does not certify technicians , it's certifies people to handle , purchase or sell refrigerants. Anybody who can read and take a test can pass this exam. A common problem in the field is where individuals take this test and received their EPA certification and now think they are a HVAC technicians. This is a huge misconception in this field. So an individual in the field that is EPA certified is not necessarily a HVAC tech.
Posted @ Friday, July 04, 2014 5:13 AM by Mike Bimonte
sdfasdf adfsf safs
Posted @ Monday, March 16, 2015 1:53 AM by sdfsdfsd
Thank you, I think I got at least some thing from you., It is very nice of you.
Posted @ Tuesday, March 24, 2015 12:36 PM by Humphrey D'souza
Post Comment
Website (optional)

Allowed tags: <a> link, <b> bold, <i> italics