How To Put Freon In Heat Pump

Download Article

It'south possible to add together Freon to your air conditioner unit yourself, only you'll demand some full general knowledge about ACs and a few specific tools to practise it correctly. The procedure can be dangerous, so hire a qualified professional if you feel unsure near what to practice. Outset by diagnosing the problem to make certain low refrigerant is the issue. Once confirmed, then brand certain the inside of the air conditioner is clean earlier you begin. You lot'll need a refrigerant gauge set up with 3 valves and a canister of R-22 or R410A refrigerant to keep.

1
Check for vents blowing warm or room temperature air. This is a tell-tale sign that your unit needs a refill of refrigerant. However, a cleaved thermostat may crusade the same problem. If information technology's a refrigerant event, the air temperature will steadily abound warmer over time because your unit is slowly losing refrigerant.^[i]
- If a broken thermostat or other effect is causing the warm air, the temperature of the air will probably spike or fluctuate.
2
Look for ice on the coils. Peek through the front end window of the AC unit to inspect the pipes inside. If the pipes and coils await frosty or ice-covered, this means you're experiencing a leak and slowly losing refrigerant. The leak needs to be repaired past a qualified HVAC technician or yous'll continue to feel the same problem.^[two]
- Adding refrigerant without fixing the leak may further damage your AC unit.
Ad
3
Look for water accumulation on the floor near your furnace. Inspect the expanse around your furnace. If you run across water pooling around it, this indicates condensation. Your coils were nigh likely icy, and at present the water ice has melted around the furnace surface area.^[3]
- The h2o tin can damage your furnace and compound your problems, and so it'due south best to accept a qualified HVAC technician come out to inspect the issue.^[4]
iv
Accept a qualified HVAC technician repair any leaks. AC units are sealed tightly and the Freon should never leak. If you need to refill refrigerant, you lot probably take a leak. You volition continue to feel the aforementioned bug until the leak is addressed.^[v]
- Calculation more refrigerant is a quick fix, simply eventually this will damage your unit of measurement.
Advertizement

i

Schedule or perform routine maintenance before adding more than Freon. Your AC's air filter, blower bicycle, evaporator curlicue, and condenser whorl need to be cleaned before you "charge" your unit with more than refrigerant. Adding more refrigerant to a unit of measurement with dirty parts tin impairment the AC.^[vi]
ii
Choose the right refrigerant for your unit. Putting the wrong refrigerant in your unit of measurement tin can cause combustion, injury, and property impairment. Check your AC manufacturer's operating guide to find out which refrigerant your unit needs. If yous don't take the operating guide, check the electric command box or the unit of measurement'south cabinet for the information. The 2 most common refrigerants are R-22 and R410A.
- R-22 is generally used in older units and is slowly being phased out because information technology is an ozone depleting material.^[7]
- If your Air-conditioning is leaking R-22, it's of import that you get the problem stock-still as shortly as possible. Since R-22 is in the procedure of being discontinued, the toll for it has skyrocketed and will only continue to go higher.^[viii]
three
Protect your eyes, skin, and lungs when working with refrigerant. Wearable safe goggles and thick gloves when handling Freon. Never directly inhale any refrigerant; doing and then can lead to sudden death. Some refrigerants are peculiarly chancy and require respiratory protection -- read the packaging for more information.
- If yous get Freon on your skin, rinse the area with h2o and seek medical handling immediately.
- R-717 and R-764 refrigerants are extremely irritating to the optics and lungs. R-717 is combustible. Handle with caution.
four

Make certain the outside temperature is to a higher place 55°F (12.vii°C) earlier proceeding. Liquid Freon will automatically seek the coldest area of an enclosed AC unit between the furnace coil and the exterior condensing unit. When outdoor temperatures are nether 55°F, the coldest expanse of your system will nigh likely be the exterior unit. The Freon will non carry properly in these weather.^[9]

Advert

1
Consider having a professional perform this procedure. Information technology is highly recommended that a qualified professional refill and recharge your AC unit of measurement. The procedure itself is dangerous, and if done incorrectly, yous tin damage your unit. Homeowners are permitted to add refrigerant in the U.Due south., merely the Environmental Protection Agency (EPA) requires that anyone you lot hire to do the job have a professional person certification.^[10]
- Continue with caution if you decide to exercise this yourself. Improper treatment of refrigerant can cause injury, death, explosions, and property damage.
2

Turn off your Air-conditioning unit at the thermostat and billow. Get to the thermostat that operates your air conditioner. Plow it to the "off" position. Your unit will either take a fused disconnect or circuit breaker fastened to information technology. If your unit of measurement has fuses, disconnect them. If your unit has a excursion breaker, turn the breaker off.
3
Hook up the refrigerant gauges to the valve connections. There are 3 valve connections attached to your unit'due south hardware, with a valve on each side (left and right). Attach the judge with the blue hose to the depression-pressure valve on the left side. Attach the gauge with the red hose to the loftier-force per unit area valve on the correct side.^[11]
- Leave the center valve open up for at present; that is where you'll connect the yellow hose to feed the refrigerant into the system.
4

Plough the AC unit back on and wait about 15 minutes. After you turn the Ac back on, the unit will demand to run for several minutes so that it can stabilize itself. You won't get an accurate reading on the refrigerant gauges until the Air-conditioning has stabilised.
five
Open the canister of refrigerant past twisting the spout on the bottom. Attach the yellowish hose to the refrigerant canister's valve and attach the other end to the middle valve connection on your guess. At that place will be a small knob on the bottom of the refrigerant canister. Twist it several times to open the refrigerant.^[12]
- The eye valve is the i betwixt the blue and carmine valve connections.
6

Open up the blue low-pressure valve on the left side. Open it for a few seconds, and then shut information technology. Open up it for a few more seconds, and so close information technology once more. Continue doing this. You want to slowly allow pocket-size amounts of the refrigerant into the unit of measurement at a time until you accomplish your target subcooling temperature.
vii
Watch the guess until y'all achieve the target subcooling temperature. The target subcooling temperature is stated on the outdoor unit rating plate. Utilise the gauge to monitor the temperature and so you know when to close the valve.^[thirteen]
- For example, the rating plate might say something like "ten degree TXV sub-cooling."
8
Turn off the valve and disconnect the gauge set. Once the target subcooling temperature is reached, turn the valve all the manner off. Twist the knob on the refrigerant canister to terminate refrigerant from going into the hose. Disconnect all of the hoses and the gauge prepare from the Air conditioning unit.^[fourteen]
- Since the unit is running during this process, there's no need to restart your unit after adding refrigerant.
ix
Perform an electronic leak test to ensure prophylactic functioning. You can buy an electronic leak detector at most dwelling house improvement stores and online. Each detector is slightly dissimilar, only in full general you just need to run the tool forth the refrigeration components to scan for a leak.^[15]
- If y'all don't feel qualified to practise this yourself, have a certified HVAC technician come up out to test the unit for yous.
Advert

Ask a Question

200 characters left

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

Submit

Advertizement

Thanks for submitting a tip for review!

Things Yous'll Need

R-22 or R410A refrigerant
Refrigerant approximate set
Blueish, red, and yellow hoses
Electronic leak detector

Almost This Commodity

Article Summary X

Before y'all add together Freon to an AC unit, brand sure to make clean the air filter, blower wheel, and coils to ensure your unit is running smoothly. Then, put on some gloves and safety glasses to protect yourself from the Freon and turn off your Air-conditioning. After it is off, hook upwards the refrigerant gauges to the valve connections. Turn the Air conditioning back on and wait 15 minutes and so you lot tin can get an accurate reading on the gauge. Then, twist the spout of the bottom of the canister to open up the refrigerant and let it fill up until you achieve the target subcooling temperature To acquire how to stay safe while using Freon, keep reading.

Did this summary help you lot?

Thanks to all authors for creating a page that has been read 161,866 times.