How much freon

In the picture of the Freon chart we can see the effect of line set sizing and length on the amount of Freon that a system uses. A fifty foot line set will cause you 2 Ton air conditioner to use an additional 1 pound 5.

If we are using Ra or Puron same thing we add 0. The 2 Ton outdoor condensing unit contains a refrigerant charge equal to 15 feet of line set and a matching 2 Ton evaporator coil. The manufacturer of the air conditioning system will allow a smaller evaporator coil by one size and a larger evaporator coil by 2 sizes.

The smaller coil is for use in very humid parts of the country and will allow the 2 Ton evaporator coil to be colder and remove more moisture from the air. In our climate here in Southern California we want the larger coil.

This does mean that additional refrigerant will be required. Unfortunately there are no charts that I have been able to find to tell me how much Freon to add. It is only a few ounces though.

The higher the humidity the more heat is transferred and the charge of the Freon will be slightly different. The thermostatic expansion will throttle back this Freon or let more pass through the evaporator as the temperature and humidity decreases and increases.

This adding and subtracting of Freon according the temperature is much more prevalent in the older fixed orifice systems 10 SEER and older. Older systems require more Freon. So, when is the right time to refill the refrigerant? Unlike what many HVAC contractors may tell you, you do not need a refill every few months unless your system has a leak. The best time to check refrigerant levels is during an annual checkup.

If the levels are low, your HVAC technician can top it off for you. Before we tell you how much it will cost you to recharge your air conditioner, you need to understand what happens when your AC is low on refrigerant levels. As mentioned above, the refrigerant that flows through your cooling unit absorbs heat from the air indoors and releases it outside. Needless to say, if the unit does not have enough refrigerant, it will not be able to remove heat from your house effectively.

Listed below are a few of the problems that you could face:. This will invariably lead to very long cooling cycles that will slow down the rate at which your unit can cool down your indoors. Warm Air: If the air coming out of your air conditioners supply registers is warmer than usual, it could be due to low refrigerant levels. This will make your home feel stuffy and uncomfortable.

Your cooling unit will have to work longer and harder to cool your home. This will lead to a spike in your utility bills.

Frozen System: Low levels of refrigerant can also cause your evaporator coils to freeze. This is because the refrigerant flows through the coils, and if there is not enough refrigerant to absorb the heat, the coils will begin to freeze. Now that we know a little about a refrigerant and how important it is for your cooling unit to have optimum levels of it, to function efficiently, let us now go into the costs involved with refrigerant refills.

This however also means, your unit needs a greater amount of refrigerant inside. Type of System. Split systems may need a greater amount of refrigerant as compared to packaged units. All of these can be determined by a professional installer.

Some problems come along an overcharged and undercharged refrigerant. Both can bring damage to the components of your system and disrupt the comfort inside your home. Refrigerant concerns are serious issues in your air conditioner that should be handled by only the professionals. Sadly, not all are as honest and trustworthy as the experts at Hightower Service Inc.

So if you doubt your previous service, feel free to ask for a second opinion with us. Give us a call now! Share this post.