To cool the air the system uses a chemical compound known as refrigerant or coolant.
Adding refrigerant to home ac unit.
Add only small amounts at a time allowing approximately 10 minutes between each small addition to get a clear reading on the gauges.
Use an adjustable wrench to loosen them if needed.
The large refrigeration line called the suction line holds the vapor refrigerant as it returns to the condenser.
The liquid refrigerant service valve connects to the small copper refrigerant line.
All ac recharging must be done by a professional by law.
There are different kinds of refrigerant with different chemical formulas and properties including r134.
With blue hose attached to the copper pipe attach the yellow hose to your refrigerant canister.
Slowly add the refrigerant allowing 5 10.
This can save you more money in the long run because it will allow your new refrigerant to last as long as it is truly supposed to.
Once all aspects are connected to your ac unit you can release the valve on your freon container and allow the coolant to circulate in the system.
For r 22 and 407c do this right side up.
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Ordinarily it takes 5 10 minutes to fill one pound of refrigerant.
Remove the caps from both service valves found where the refrigerant lines enter the condenser.
Over time if you find that the air blowing from the unit is warm you may need to add r 22 to your unit.
Open the valve on the refrigerant canister all the way.
Putting the wrong refrigerant in your unit can cause combustion injury and property damage.
Older hvac units require r 22 refrigerant refill charges to keep the temperature running cool in your home.
2 choose the right refrigerant for your unit.
For r 410a do this upside down as well as charge upside down.
Make sure the container remains in an upright position.
Adding more refrigerant to a unit with dirty parts can damage the ac.
It is best to have a professional come in to survey the possible damage before adding more refrigerant to the unit.
When you need more refrigerant in your air conditioner don t attempt to make this repair at home.
This law is part of the epa section 608 of the clean air act.
The coolant is mixed with air inside an air handler unit a big box outside of your home.
So a 2 5 ton hvac unit which requires 5 10 lbs would take about 25 minutes to an hour and 40 minutes.
This is a step by step.
Turn on the ac and let it run for at least 15 minutes then connect the supply hose from your manifold to the refrigerant container.