How Do You Put Freon In A Window Ac Unit

Download Article

Download Commodity

It's possible to add Freon to your air conditioner unit yourself, but y'all'll need some full general cognition about ACs and a few specific tools to practise information technology correctly. The process tin can be unsafe, so hire a qualified professional if y'all experience unsure well-nigh what to do. Start by diagnosing the trouble to make certain low refrigerant is the issue. One time confirmed, then make certain the inside of the air conditioner is clean before y'all begin. You lot'll demand a refrigerant guess set up with 3 valves and a canister of R-22 or R410A refrigerant to proceed.

1. 1

   Check for vents blowing warm or room temperature air. This is a tell-tale sign that your unit of measurement needs a refill of refrigerant. However, a cleaved thermostat may cause the aforementioned problem. If it's a refrigerant issue, the air temperature will steadily grow warmer over time because your unit of measurement is slowly losing refrigerant.^[one]

   • If a cleaved thermostat or other outcome is causing the warm air, the temperature of the air will probably fasten or fluctuate.

2. 2

   Look for ice on the coils. Peek through the front end window of the Air conditioning unit of measurement to inspect the pipes inside. If the pipes and coils look frosty or ice-covered, this ways you're experiencing a leak and slowly losing refrigerant. The leak needs to be repaired by a qualified HVAC technician or yous'll keep to experience the same problem.^[two]

   • Adding refrigerant without fixing the leak may further harm your Ac unit.

   Advert

3. iii

   Await for h2o accumulation on the floor virtually your furnace. Inspect the expanse around your furnace. If you run across water pooling around it, this indicates condensation. Your coils were most likely icy, and at present the water ice has melted around the furnace area.^[3]

   • The water can damage your furnace and chemical compound your problems, then it'southward best to take a qualified HVAC technician come out to inspect the issue.^[4]

4. 4

   Have a qualified HVAC technician repair whatever leaks. AC units are sealed tightly and the Freon should never leak. If you demand to refill refrigerant, y'all probably have a leak. You lot will keep to experience the aforementioned problems until the leak is addressed.^[v]

   • Adding more than refrigerant is a quick set up, but somewhen this volition impairment your unit.

Advertizing

1. ane

   Schedule or perform routine maintenance before adding more Freon. Your AC'south air filter, blower cycle, evaporator coil, and condenser whorl demand to exist cleaned before you "charge" your unit with more refrigerant. Calculation more refrigerant to a unit of measurement with muddied parts tin harm the AC.^[6]

2. 2

   Choose the right refrigerant for your unit of measurement. Putting the wrong refrigerant in your unit of measurement can cause combustion, injury, and property harm. Check your AC manufacturer'due south operating guide to observe out which refrigerant your unit of measurement needs. If yous don't have the operating guide, check the electrical control box or the unit of measurement's cabinet for the information. The two most mutual refrigerants are R-22 and R410A.

   • R-22 is mostly used in older units and is slowly existence phased out because it is an ozone depleting cloth.^[7]
   • If your Air-conditioning is leaking R-22, it'south important that you get the problem fixed every bit soon as possible. Since R-22 is in the process of being discontinued, the price for information technology has skyrocketed and will only continue to get higher.^[eight]

3. 3

   Protect your optics, skin, and lungs when working with refrigerant. Wear safety goggles and thick gloves when handling Freon. Never straight inhale any refrigerant; doing so can lead to sudden decease. Some refrigerants are specially chancy and crave respiratory protection -- read the packaging for more data.

   • If you lot get Freon on your skin, rinse the area with water and seek medical handling immediately.
   • R-717 and R-764 refrigerants are extremely irritating to the optics and lungs. R-717 is flammable. Handle with caution.

4. 4

   Make sure the outside temperature is to a higher place 55°F (12.vii°C) before proceeding. Liquid Freon volition automatically seek the coldest area of an enclosed AC unit of measurement between the furnace coil and the outside condensing unit. When outdoor temperatures are under 55°F, the coldest area of your system will most likely be the exterior unit of measurement. The Freon volition not behave properly in these conditions.^[9]

Advertisement

1. 1

   Consider having a professional perform this procedure. It is highly recommended that a qualified professional refill and recharge your AC unit of measurement. The process itself is unsafe, and if washed incorrectly, you lot can damage your unit. Homeowners are permitted to add refrigerant in the U.Southward., simply the Environmental Protection Agency (EPA) requires that anyone y'all hire to do the chore have a professional certification.^[10]

   • Proceed with caution if you make up one's mind to do this yourself. Improper handling of refrigerant tin cause injury, decease, explosions, and holding damage.

2. 2

   Turn off your AC unit at the thermostat and breaker. Become to the thermostat that operates your air conditioner. Turn information technology to the "off" position. Your unit of measurement volition either have a fused disconnect or circuit breaker fastened to information technology. If your unit has fuses, disconnect them. If your unit has a circuit breaker, turn the breaker off.

3. 3

   Hook upwardly the refrigerant gauges to the valve connections. There are 3 valve connections fastened to your unit's hardware, with a valve on each side (left and right). Attach the gauge with the blue hose to the low-pressure level valve on the left side. Attach the gauge with the red hose to the high-pressure valve on the right side.^[xi]

   • Leave the middle valve open for now; that is where you'll connect the yellow hose to feed the refrigerant into the system.

4. 4

   Plough the Air-conditioning unit dorsum on and wait about 15 minutes. Afterward yous turn the Air-conditioning back on, the unit will need to run for several minutes so that it can stabilize itself. You won't get an authentic reading on the refrigerant gauges until the Ac has stabilised.

5. 5

   Open up the canister of refrigerant past twisting the spout on the bottom. Attach the yellow hose to the refrigerant canister's valve and adhere the other end to the middle valve connexion on your judge. There will be a small-scale knob on the bottom of the refrigerant canister. Twist information technology several times to open the refrigerant.^[12]

   • The middle valve is the one between the blue and blood-red valve connections.

6. 6

   Open the blue depression-force per unit area valve on the left side. Open up it for a few seconds, then close information technology. Open it for a few more than seconds, then shut it again. Proceed doing this. You want to slowly allow small amounts of the refrigerant into the unit of measurement at a time until you reach your target subcooling temperature.

7. seven

   Watch the estimate until you reach the target subcooling temperature. The target subcooling temperature is stated on the outdoor unit rating plate. Utilise the guess to monitor the temperature then you know when to shut the valve.^[thirteen]

   • For example, the rating plate might say something like "x degree TXV sub-cooling."

8. 8

   Plow off the valve and disconnect the gauge ready. Once the target subcooling temperature is reached, turn the valve all the fashion off. Twist the knob on the refrigerant canister to stop refrigerant from going into the hose. Disconnect all of the hoses and the judge ready from the AC unit.^[14]

   • Since the unit is running during this process, at that place's no need to restart your unit later calculation refrigerant.

9. ix

   Perform an electronic leak test to ensure safe operation. You tin can buy an electronic leak detector at most dwelling house improvement stores and online. Each detector is slightly different, but in general you only need to run the tool along the refrigeration components to scan for a leak.^[15]

   • If you don't feel qualified to do this yourself, have a certified HVAC technician come out to exam the unit of measurement for you.

Advertisement

Enquire a Question

200 characters left

Include your email address to go a message when this question is answered.

Submit

Advertisement

Thanks for submitting a tip for review!

Things You'll Need

• R-22 or R410A refrigerant
• Refrigerant guess set
• Bluish, red, and yellow hoses
• Electronic leak detector

Nearly This Article

Commodity Summary X

Earlier you add Freon to an AC unit, make sure to clean the air filter, blower wheel, and coils to ensure your unit is running smoothly. Then, put on some gloves and rubber glasses to protect yourself from the Freon and turn off your AC. After it is off, claw upwards the refrigerant gauges to the valve connections. Turn the Ac back on and wait 15 minutes then yous tin can get an accurate reading on the estimate. And so, twist the spout of the lesser of the canister to open the refrigerant and let it fill up until you reach the target subcooling temperature To learn how to stay safe while using Freon, keep reading.

Did this summary help you?

Thanks to all authors for creating a page that has been read 178,852 times.

Did this article help you lot?

Source: https://www.wikihow.com/Put-Freon-in-an-AC-Unit

Posted by: mcginnismanday.blogspot.com

Share this post