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What Every Homeowner Should KNOW Before Purchasing a New AC Unit

Let’s face it, for the vast majority of homeowners, we know that installing a new AC unit is not a do it yourself, weekend warrior job.  So, before you call an expert, it’s important to educate yourself as a consumer in order to make the right choices for your family’s comfort.

Understanding the Right Size

In many homes, the existing system is oversized due to the fact that the owners have made improvements to make the home more energy efficient through time.  For example, adding double pane windows and insulation to a home means that the unit that was previously properly sized is now oversized.  Units that are too large will cycle on and off frequently.  As a result, there will be swings in room temperature and the unit will not remove sufficient humidity from the home.  This process wastes energy and also increases the chance the unit will fail before its time.

On the other hand, units that are too small can also increase the likelihood of a breakdown as well.  The too small unit must work harder and stay on longer than a properly sized one.  As the days grow warmer, the unit may not have enough cooling capacity to cool the home sufficiently.

How to Determine the Right Size

In order to select the correct size of air conditioner, contractors should refer to Manual J.  The software considers several factors in choosing the right sized unit.  These include the orientation and size of the home, the amount of insulation, the home’s windows and the number of people living in the home.  In addition, the contractor should refer to Manual D, a companion to Manual J that helps if ductwork changes will berequired during the installation.

By referring to these calculations as well as other factors, the contractor can determine the proper cooling load for the home.  Determining the cooling load is the only correct method to choose the correct size for the home’s new AC system.

Consumer Alert:  Ask your Air Conditioning Professional “how did you determine the size unit that my home needs?”  If the contractor says they use the BTU figure or the square footage of the home, they are not including all of the factors needed to make a sound recommendation.  It’s time to get a second opinion before making a commitment to buy.

Installing the New AC System

While do-it-yourself homeowners may consider making the installation of the new system for themselves, this is a job that should be left to the qualified contractor.  Even if the homeowner does part of the job for himself, a contractor is still needed for:

Charging the system with refrigerant.  The law requires EPA-certified technicians for handling this chemical.  If an old system is being removed, a contractor must remove any R-22 refrigerant from the old system and process it per EPA regulations.

– Connection of the unit to the circuit panel and any other high voltage electrical wiring.  The contractor must also verify the current electrical system meets the demands of the new home AC system.

– Inspection of the installation.

– When it is time to have the new home AC system installed, the compressor should be installed in a shady place, preferably on the east or north side of the home.

-Manufacturer warranties are typically contingent on the equipment installed by a certified & licensed contractor.

The purchase of a new Comfort System is a large investment and it is worth choosing a qualified professional to help guide you in making the choices for your home that are designed for how you live and using the highest industry standards.

Hobaica Services has been serving Arizona since 1952 and has a stellar reputation for performing above industry standards, providing a worry free experience and enjoying hundreds of referrals every month from customers who have trusted our team for over 60 years.

Contact Hobaica Services today for your FREE comfort evaluation @ www.hobaica.com or 602-995-0387

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Check Out Our Reviews . . . From Neighbors Near You

Holly Boudro
Holly Boudro
03:01 26 Feb 21
Wonderful experience! He came on one day and fixed what he could and then scheduled us the next day to repair the problem! He was very friendly and outgoing!
Karen Woodhouse
Karen Woodhouse
22:39 25 Feb 21
Scott Dale was very professional and knowledgeable during an inspection of my HVAC system. I was very comfortable during his visit and he shared helpful information and pictures and patiently answered all of my questions. I highly recommend Scott and appreciate having a technician of his caliber representing Hobaica.
frances hansen
frances hansen
15:51 25 Feb 21
Mike did great service!
Trisha Kelly
Trisha Kelly
03:16 25 Feb 21
Saw Mike Varela outside a neighbors house. Stopped what he was doing to answer my 100 questions lol. Definitely a difference from past experiences with HVAC companies. Wanted to share my good experience. Would recommend to a friend.
Sophia Martos Jerez
Sophia Martos Jerez
20:06 24 Feb 21
Always a pleasure working with the HVAC crew from Hobaica! Mike Varela! Was friendly and knowledgeable about what is going on with our home unit. Great job!
Catherine Graham
Catherine Graham
19:39 24 Feb 21
Ryan and Scott were courteous and knowledgeable.
jonathan chubb
jonathan chubb
03:41 24 Feb 21
All around super happy with my service - called and got an appointment to help with some pipe issues that same day. Brandon was great and while I hope to never have to use the service again, I would be giving them a call before anyone else! :)
Kevin Melvin
Kevin Melvin
00:14 24 Feb 21
Gabriel and Angel were great installing my new AC system. They showed up early and were professional and efficient the entire time. A slight electrical issue came up early, and they quickly had an electrician come out so the project would not run late. They took the time out to answer my questions and explained the steps they were taking during the install. My entire experience with this company and Gabriel and Angel in particular was positive. I would definitely refer them to others!
Karen Cardamone
Karen Cardamone
01:36 21 Feb 21
Hobaica is always great. I had an emergency plumbing situation today and they sent Simon out the same day and he fixed everything. What a relief! I highly recommend

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