Time to replace your AC? When to replace your central air conditioning system A central air conditioning system is an expensive investment, but most systems aren’t meant to last for much more than ten years. Ideally, it should be energy-efficient, while maintaining optimal comfort in every part of the home. Your system should be able to reduce the humidity level that contributes to the discomfort of summer heat, while lowering the temperature enough to let people sleep well or enjoy their activities when they’re awake. Even with regular maintenance, you may reach a point where your system isn’t functioning well enough to keep your home comfortable during the hottest part of the summer. Here are a few signs that may indicate that it’s time to replace your central air conditioning system. The age of your system The average lifespan of an air conditioning system is 10-15 years. If your unit is close to ten years old or older, you may want to consider replacing it instead of repairing it.

Heating and cooling costs account for roughly 44% of your utility costs. If you’re paying more than the average for your area, your air conditioning system may not be working effectively. Older air conditioning systems also use R22, a freon refrigerant, which is being phased out over the next few years out to meet environmental protection regulations. ice at ac unitReplacing this refrigerant in older air conditioning systems to one that complies with these regulations  is expensive and since R22 is being discontinued, it's becoming more difficult to source. how many central air conditioning units do i needNew air conditioning  systems are all manufactured to comply with these regulations and are designed to be much more energy-efficient. window ac cost per hour

Using the correct refrigerant, they are also far more eco-friendly because they release fewer carbon emissions. By installing a new air conditioning system you will also notice a significant improvement in your home’s indoor air quality. A newer air conditioning system will also increase the resale value of your home.  Excessive noise and dust The constant presence of dust in your home – even after cleaning, is a good indication that there are leaks in the ductwork. Those leaks will compromise the efficiency of your air conditioning system, and that will increase the operating cost. If your air conditioner is excessively noisy, there is a good possibility that your duct system isn’t large enough for the square footage of your home. It’s also possible that you have a problem with the unit’s indoor coil. Your air conditioning-related expenses are increasing If your utility bills are going up and there isn’t any change in the way you’re using it, that’s a good indication that your system is no longer as efficient as it should be.

Another obvious sign is the amount of money you are paying for air conditioning repairs, and the frequency with which you have to have the system repaired. Cooling and humidity inconsistencies Your home’s air conditioner is supposed to remove humidity from the air because excessive humidity makes the space more uncomfortable. When it functions, the system will maintain consistent temperatures throughout the house. When the cooling portion of your HVAC system isn’t able to do these things, either your equipment is malfunctioning, or there are issues with your ductwork. Think about the cost of repairing these problems, and ask yourself if it is worth your while to spend the money on repairs. These warning signs may be an indication that you should think about replacing your air conditioning system. It’s natural to be concerned about the cost of replacing part of your HVAC unit. It’s an expensive purchase, and a huge investment in your home. Don’t panic at the prospect of having to come up with a lot of money upfront.

A new air conditioning unit may wind up eliminating the constant repair costs, and lower your utility bills enough to help you recoup part of your investment. A newer, more energy-efficient air conditioning system will also increase the resale value of your home. View the latest offers on central Choosing the right replacement for your air conditioning system Petro understands that homeowners feel overwhelmed and confused by all of the options and considerations that go into selecting the proper air conditioning unit to replace their existing one. Our team of air conditioning professional technicians are experienced, highly qualified, and trained. When you work with Petro, you get a team of home service professionals who are consistent and reliable. We carry the latest and most energy-efficient air conditioning systems. You can always count on our team for fast, expert installation and around the clock repairs. Let us help you choose the best air conditioning system for your home.

We will make sure that your system is installed correctly and that it works at peak performance, while reducing your utility costs.  Let Petro install or repair your central air conditioning system ›Why Install A New RV ACIf you own a motorhome or camper trailer for any length of time, there will eventually come a day when the rooftop AC will need to be replaced. More than likely you have already spent a few bucks having minor repairs made over the years.But now, there are a few problems which will entail spending quite a bit of cash in order to get a few more camping season out of the old AC unit. An old shroud needs replacing before it finally breaks away from the unit and ends up beside the road. Or even worse, in front of an oncoming vehicle.Or perhaps the fan motor is making a noise and the old girl doesn’t cool like she used to. Just to replace these items will cost half as much as a new rooftop RV AC unit. And who’s to say the compressor won’t suddenly go kaput and cost another three or four hundred dollars.

The best thing to do is just bite the bullet and install a new rooftop unit. Can You Install The New Rooftop AC Yourself?If you are a hands-on type of person with basic tool skills, there is no reason you cannot replace your old cooling unit with a new, more efficient rooftop AC unit. The whole replacement procedure doesn’t take very long to do, especially if you have a willing friend to help. The hardest part of the procedure is getting the old AC down and the new unit back up on the roof. There are no special tools required for this job. Ordinary hand tools are all that is needed to quickly replace the old AC, with a new and more efficient unit. A basic knowledge of household electric wiring is required but there are only 3 wires to be connected in the entire process. So, if are you up for it, read on. Beginning the RV AC Replacement Removing the Old Air Conditioner It is recommended that you protect the roof around the installation area with thick drop cloths or old blankets to protect the roof material against damage.

This is especially important if the RV is an Airstream or other smooth metal roofed camper trailer which could be easily scratched or dented. These cooling units are not especially heavy but they can cause damage if bumped or dropped on the camper roof.Also, be sure the roof will support your weight before clambering around on top of it. If you are not sure, it is best to use planks or plywood to distribute your weigh evenly on the rooftop. Begin by removing the old AC shroud from the unit. Normally, there are 4 screw or bolts securing it to the old unit.The shroud is removed to make it easier to move the old unit. Remove any old flashing or adhesives from around the base of the old air conditioner. Often there is quite a bit of this residue because of repeated coatings of the roof over the years to prevent leaks. A putty knife will come in handy on this job. Unbolting and Removing the Old UnitIn most cases, four long bolts are all that holds the unit to the camper's rooftop.

These bolts go up through a square bracket and thread into the rooftop unit itself. A thick rubber seal is compressed between the rooftop unit and the roof of the trailer or motorhome when the bolts are tightened. This seal ensures a watertight barrier against rainfall and humidity.Remove the bolts with a wrench or socket and the ceiling flange should drop free. Depending on what kind of duct is used to connect the rooftop unit to the ceiling flange, unscrew or pull loose the ducting. The A/C unit is ready to be removed. After going back up onto the roof, it may be necessary to use a putty knife to loosen the rooftop unit from the roof surface. Once it is loose, lift the old air conditioner out of the hole and remove it from the roof. Clean the surface of the roof well where the new seal will rest. A clean surface is imperative to prevent leaks. Old putty and adhesives may cause a leak in the new seal. Correctly Placing the New Air Conditioner With the shroud removed, transport the new air conditioning unit atop the camper and center it over the duct hole.

It helps to have someone inside of the RV to help you get the unit centered correctly. The rubber gasket on the bottom of the A/C should align with the 14”X 14” square ceiling hole almost perfectly. Check the installation instructions to be sure the ceiling assembly flange is turned the right way before threading the new bolts up into the unit.Follow the instructions for your particular rooftop unit while tightening the retaining bolts. Some AC units, such as the Coleman unit illustrated here, have small tabs which contact the roof when the flange bolts are tightened properly. This Coleman unit uses a flexible duct which attaches to the AC ceiling assembly by a small strip of adhesive. Remove the protective plastic from the adhesive strip and attach the flexible duct firmly into place. Cut off the excess flexible ducting before attaching the air filter cover. Finishing the new Coleman RV AC installation AC Electrical Connections and Finishing UpAttach the line to the new wires inside the junction box of the ceiling assembly.

The wires are color coded to match the electrical wiring. Using the wire nuts provided with the new RV AC unit, connect back to black, white to white, with the green ground wire being connected to the bare line ground. Make sure the wire nuts are secure with no exposed wire on the back or white wires. A small strip of electrical tape wrapped around the connections will do no harm. If you are not confident in connecting these wires, ask someone with more experience to help you. Plug the control wire harness from the rooftop A/C into the ceiling control assembly. If you are using the optional heat strip, now is the time to attach it to the mounting bracket inside of the ceiling assembly and plug the heating element connecting wires into the control cover. The control cover on this Coleman RV AC unit uses four spring assisted screws which attach it to the flange. Attach the filter cover and the job is almost done.Carefully slide the new shroud over the unit and secure it with the retaining screws.

Be sure they are snug. Reconnect the power and the job is complete. Test the unit for correct operation and run it for a while to verify it’s correct operation. Now you can rest easy and enjoy a cool nights sleep in the hottest weather. You saved a few bucks and learned a few things in the process. Good for you and good luck with your new air conditioner! New RV Air Conditioners and Assessories More by this AuthorCampers & MotorhomesTroubleshooting, Repairing, and Replacing an RV Camper Power ConverterTips for how to troubleshoot, repair, or replace the power converter in an RV, camper travel trailer, or motorhome. FAQs and answers to common camper electrical problems. Campers & MotorhomesHow To Repair, Remodel, & Restore, Old Camper Trailers, Motorhomes RV InteriorsThis article is intended for those who wish to remodel or repair older RVs and travel trailers. Fully illustrated with tips and photos to help the DIY RV owner. Ideal for classic trailer restoration. Campers & MotorhomesHow to Repair or Replace RV & Camper Trailer FloorsDutchman RV floor repair guide.