Can I Install Central Air Myself? (Find Out Now!)

Central air is among the most necessary parts of a clear and cozy dwelling. Whereas nonetheless thought of a commodity, putting in central air con is pretty customary in new houses. Nonetheless, when you’ve got an older dwelling and wish to set up one, it will possibly show tough to do by yourself.

It’s potential to put in central air con your self, however with out the best instruments, coaching and expertise it’s difficult. Central air consists of many various parts corresponding to piping, an indoor coil, and an outside condenser. A mixture of bodily labor and exact science goes into the set up of a central air.

In case you are not skilled with air con or HVAC I might extremely suggest attempting to put in your central air. Nonetheless, if you’re hardworking, modern and searching to economize, this text will clarify easy methods to set up central air.

Do not you wish to do it your self?

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Ensure you have the best instruments

Earlier than you begin the set up, it’s best to just remember to have all the mandatory instruments.

  • tin snips
  • electrical tape or cable ties
  • Hangers or J hooks
  • vacuum pump
  • Measuring gadgets for air con
  • wire strippers
  • Fundamental hand instruments
  • A soldering set
  • hydrogen tank

Calculate so your AC is the best measurement

Whether or not you are shopping for a brand new or used air conditioner, you wish to be certain it is the best measurement on your dwelling. When you have one which’s too huge, your home will settle down so rapidly that the moisture is not eliminated. Nonetheless, an air conditioner that’s too small runs continually and ends in excessive vitality payments.

If you do not have plumbing, you may want to put in some.

The one means central air con works is when you’ve got ducts in your home. If you have already got a range that blows air by means of registers to warmth your own home, then you might have ductwork. Nonetheless, if you do not have a furnace or sewer, you may want to put in each as nicely.

How you can set up a central AC your self

As soon as you have gathered your instruments and have the best measurement air conditioner, it is time to start the set up.

Choose a location for outside AC

The very first thing to do is select a great place outdoors of your own home on your air conditioner. Ideally, you need a flat space close to the home the place there aren’t many timber or shrubs. Grime and branches can get into the air conditioner and injury it.

As soon as you have picked the best spot, you may want to put an air con panel or pad on the ground. The AC will then sit on prime of it, so you may have to discover a steady, flat space to put your pad. Make sure you pack the filth underneath the pad as the burden of the air conditioner might trigger the ground to shift underneath the pad.

Place the AC on a pad

As soon as you have positioned your pad firmly on the ground, it’s best to place your air conditioner on it. Most air conditioners weigh between 150 and 250 kilos, so you may doubtless want some assist with this half.

Set up the A coil on prime of the oven

In your home you’ll want to set up an A coil in your range. Many individuals do not know that there are indoor and outside central air parts. There are then a number of cooling traces or pipes connecting the 2 sections. Putting in the coil on the range is kind of tough, so prepare.

They’ve a bit of metallic ducts generally known as the plenum that connects to the highest of the oven. The purpose is to insert the coil cleanly between the metallic plenum and the furnace. To do that you’ll want to reduce the metallic part out of the way in which that matches the precise dimensions of the coil. It is a good suggestion to buy a coil that’s the similar width and depth as your furnace and plenum so the coil matches snugly between the 2.

Lower a gap for the lineset and wires

Subsequent, reduce or drill a gap in your wall massive sufficient to run two electrical wires and your cooling traces by means of. This gap provides your liquid and suction traces an opportunity to get from the A coil to the A/C. It additionally accommodates your excessive voltage electrical wire and your low voltage thermostat wire. Each are linked from the air conditioner to both the furnace or your predominant distribution field in the home.

Join your liquid and suction line units

Together with your gap reduce now you can join your two refrigeration traces out of your air conditioner to the coil. Relying on the scale of your air conditioner, one in every of your traces might be 3/4″ to 7/8″ in diameter. The opposite is sort of all the time 1/4″ in diameter. Join these tubes to the suitable areas in your coil and air conditioner.

If crucial, remember your filter.

If crucial, you additionally want to put in a filter in your home on the 1/4 inch liquid line. There needs to be an arrow on the filter pointing towards the oven so it may be correctly put in. Some air conditioners include a filter pre-installed, so make sure to verify along with your particular producer.

Solder your connections

In case your liquid and suction traces run from the air conditioner to the coil, it is time to solder them collectively to kind an hermetic seal. It’s important to solder the leads due to the stress in them as an alternative of crimping or soldering them. A solder or crimp connection shouldn’t be robust sufficient to resist the stress and you could use solder.

Soldering is similar to welding, and if you know the way to weld or braze, you in all probability know easy methods to solder. Do not try and solder your central air until you might have prior expertise. Brazing makes use of oxygen and acetylene, creating unbelievable warmth. They’re flammable and explosive if you do not know what you might be doing.

In both case, you or a helper might want to solder the joints collectively to proceed.

Carry out an air take a look at

As soon as your liquid and suction line connections are soldered to each the A/C and coil, it’s best to do an air take a look at. Air assessments are carried out to make sure your braze is hermetic and there’s no leak anyplace. For inexperienced solderers, there may be virtually all the time at the least one leak when soldering.

You have to air con gauges and a nitrogen tank to carry out the air take a look at. Join one finish of the hose to the nitrogen tank and the opposite finish to one of many air conditioner fittings close to the liquid and suction traces. Blow nitrogen into the air con traces and verify your gauge to ensure there aren’t any leaks. The nitrogen stress within the traces is so nice that if there’s a leak you may normally hear air hissing.

Vacuum your AC system

If the air take a look at passes, it’s time to vacuum or pump down the system. To do that you will have a vacuum pump and your air con hoses and a micrometer. That is one other half that’s extraordinarily tough to do with out expertise and I might advise in opposition to it.

The purpose is to get your micron studying beneath 400 and preserve it there. If the quantity is at 400 or much less however beginning to shoot into the hundreds, there is a good probability you might have a leak someplace within the system. This implies you need to begin over along with your air take a look at and soldering procedures till the leak is discovered and glued.

Route your low voltage and excessive voltage cables

To ensure that your air conditioner to work, you might have a low voltage thermostat wire that runs from the air conditioner to the furnace. You even have {an electrical} twine that goes from the air conditioner to your grasp swap. Ensure you seek the advice of the ID labels in your air conditioner to make sure your wires are the right measurement and that you’re plugging them into the right locations. Incorrect connections will result in mechanical failure and your air conditioner is not going to begin.

Additionally, it’s all the time advisable to put in a circuit breaker between your air conditioner and your junction field. Primarily, you might have {an electrical} wire that runs from {the electrical} panel to the circuit breaker, which needs to be positioned on the skin wall subsequent to the air conditioner. You then have a second electrical wire that goes from the circuit breaker to the air conditioner. The separation level acts as an emergency shutdown and repair shutdown.

Launch the freon within the AC

The ultimate step is to make use of a set of allen keys to open the ports in your air conditioner and launch the freon pre-installed on it. To do that you’ll want to take away the brass caps that shield them and have the best measurement allen wrenches. Insert the wrench into the 2 openings one after the other and switch counterclockwise in order that the openings open. It is best to hear a sudden hiss because the freon escapes from the air conditioner and rushes by means of the refrigeration traces.

Do a take a look at run

As soon as this step is full, it is time to activate the machine and do a follow run. Flip the circuit breaker that you simply put in within the electrical cupboard on your air conditioner to the ON place. Be certain the circuit breaker is correctly seated or additionally turned to the ON place. Test your thermostat and alter the setting to COOL, and cut back the temperature beneath room temperature. This could begin your central air.

How a lot does it price to put in central air con?

Central ACs are fairly costly, particularly in case you get somebody to put in them for you. You’ll be able to spend anyplace from $2,000 to $4,000 on the air con, A-coil and supplies alone. Set up prices are normally a further $1,000, however are all the time required because of the issue of putting in air con.

associated questions

Is it advisable to put in your personal central air con system?

No, in the long run and brief time period, putting in your personal central air con shouldn’t be a good suggestion. There may be a few 0% probability that with out the best coaching and instruments you’ll do the whole lot proper. An improperly put in air conditioner will solely final a fraction of the lifetime of a professionally put in one.

How lengthy ought to a central air conditioner final?

The common lifespan of a high quality air conditioner is between 15 and 30 years. Cheaper and inferior high quality central air conditioners solely final 8 to fifteen years however can final for much longer with correct care and upkeep. An improperly put in air conditioner can provide up the ghost after three months to a number of years.

Do not you wish to do it your self?

Obtain free, no-obligation quotes from skilled contractors close to you.


Last Ideas

Central air con programs enhance the standard of life and the worth of your home. Hiring an expert to do the correct set up will price you extra money upfront, nevertheless it’s a good suggestion in the long term. Your air conditioner will run extra effectively and final for much longer whereas having fewer issues.

Interlace Koblentz

Earlier than I began writing, I labored within the plumbing, electrical, and HVAC industries for greater than 6 years. I used to be primarily an HVAC installer but in addition labored as a plumber and electrician. Now I am a copywriter, targeted on DIY content material and guides.