AC Installation

Preparing Your Home Before AC Installation

Getting your home ready before the AC installation team arrives is an important step that can help make the process smoother. Here are some tips on how to prepare:

• Clear access to work areas. Make sure there is a clear path to where the indoor air handler unit will be installed, as well as where new ductwork may be run. Remove any furniture or belongings blocking access. Trim back bushes or vegetation outside where the outdoor condenser unit will go.

• Protect floors and walls. The installers may need to make holes inside for new ductwork. Lay down drop cloths in the work area to protect carpets and floors from dust and debris. You may want to remove pictures or decor on walls that could get damaged too.

• Turn off electricity to work zones. Switch off power to any rooms or circuits where electrical work will take place. Turning off the main home power is ideal.

• Ensure proper drainage. There should be adequate drainage for condensate line connections from the cooling system. Installers may need to run new drain lines or connect to existing plumbing.

• Seal up holes or cracks. Any openings along the installation route should be sealed up so cooled air doesn’t leak out. Use caulk or expanding foam to plug gaps in walls, floors, ceilings, etc.

Taking these preparation steps allows the AC installation to proceed efficiently and protects your home. The installers will have full access to do their job while your property stays safe from accidental damage.

Properly Sizing Your New AC Unit

Determining the right size air conditioner for your home is crucial for comfort and efficiency. An improperly sized unit will lead to higher energy bills and insufficient cooling or dehumidification. There are a few key factors to consider when sizing an AC unit:

• Square footage – The first step is calculating the total square footage of your home that will be cooled by the AC system. As a general rule of thumb, you’ll need 20 BTUs (British Thermal Units) of cooling power for every square foot.

• Home construction – Well insulated homes with modern windows require less AC capacity than older homes with poor insulation and leaky windows. Newer homes often need only 15-18 BTUs per square foot.

• Local climate – Hotter climates require more cooling power. An extra 10% capacity may be needed for homes in extremely hot locations.

• Sun exposure – South-facing rooms with large windows can increase cooling demands and may need extra capacity. Consider individual room needs.

• Occupants and usage – Homes with more occupants or frequent gatherings need larger AC units than a home occupied by just 2 people. Think about your usage.

• Other heat sources – Factors like household appliances, lighting, and electronics can slightly increase cooling requirements.

An AC unit that’s too large will cycle on and off frequently, resulting in uneven cooling and higher electricity bills. An undersized unit won’t keep your home cool on hot days and will run constantly at maximum capacity. Consider consulting with us to determine the ideal AC unit size if you are unsure. Careful calculation and proper sizing will ensure your AC system provides maximum comfort and efficiency.

Central vs Ductless AC Systems

Central air conditioning systems use ductwork to distribute cooled air throughout a home. The system consists of an outdoor condenser unit containing the compressor, and an indoor air handling unit with an evaporator coil. The two units are connected by refrigerant lines and ductwork runs through the home to supply each room with cool air.

Central AC systems are ideal for cooling an entire home evenly. They require more extensive installation work to connect ductwork. Central air provides less zoning control as all rooms get cooled simultaneously. Maintenance involves cleaning ducts to improve airflow and replacing filters. Central AC costs more upfront but can have lower operating costs than ductless systems.

Ductless mini-split AC systems have an outdoor compressor linked by refrigerant lines to one or multiple indoor evaporator units mounted high on walls or ceilings. Each indoor unit has its own thermostat for zoned temperature control. No ductwork is required, so installation is faster and simpler.

Ductless systems work well for additions, older homes, and targeting specific rooms. Maintenance is easier with no ducts to clean. Ductless AC may cost less upfront but have higher operating costs if running multiple indoor units. Zoning capabilities provide more custom comfort control. Overall, ductless systems are more energy efficient.

Understanding AC Efficiency Ratings

When shopping for a new air conditioner, you’ll come across efficiency ratings like SEER, EER, and HSPF. Understanding what these ratings mean can help you choose the most energy-efficient and cost-saving AC unit.

SEER stands for Seasonal Energy Efficiency Ratio. This measures how efficiently an AC cools your home over an entire cooling season. The higher the SEER, the greater the efficiency. Most new air conditioners have a SEER between 14 to 18. Older units rated below 10 SEER should be upgraded.

EER is the Energy Efficiency Ratio, measuring efficiency at peak cooling performance. EER is especially important in very hot climates that require maximum cooling. Look for models with an EER above 12 for the best efficiency.

HSPF or Heating Seasonal Performance Factor rates an AC’s heating efficiency for heat pumps and dual-function units. The higher the HSPF, the more heat you get per unit of electricity. New heat pumps should have an HSPF of 8 or higher.

Choosing a higher-efficiency AC translates into energy and cost savings. Units with a SEER of 16 can save you up to 30% on cooling bills compared to a SEER 13 model. You can estimate savings by multiplying the SEER difference by your annual cooling cost.

Many top AC brands now offer advanced high-efficiency models with SEER ratings of 19 or higher. These use innovative compressor designs and advanced components to maximize performance. Though pricier upfront, they offer faster payback through energy savings.

The AC Installation Process Step-by-Step

The process of installing a new air conditioner is complex and requires expertise to complete correctly. Here is an overview of the major steps involved:

Site Evaluation and Planning

The first step is for the AC installation technicians to thoroughly evaluate your home’s layout, ductwork, electrical systems, and installation area. They will take measurements and assess any modifications needed to accommodate the new AC unit. The team will also plan the installation process to minimize disruption to your home.

Removing the Old Unit

If you currently have an AC unit, the team will properly disconnect and remove the old indoor and outdoor units. This includes recovering any refrigerant from the old system. The technicians will cap any unused refrigerant lines and ductwork.

Modifications

Some homes require modifications to prepare for the new AC system. This may involve installing new ductwork, electrical wiring, drain lines, or structural components. Proper modifications are critical for optimal performance.

Installing the New Indoor Unit

The new air handler or evaporator coil unit will be lifted into place and secured within your home. All electrical and duct connections will be made at precise specifications. The unit will be mounted securely to avoid vibration and noise.

Installing the New Outdoor Unit

Next, the condenser unit is installed on a sturdy, level concrete pad outdoors. Refrigerant lines are connected to the evaporator coil inside. Proper clearance is left around the unit for ventilation and service access.

Connecting Ductwork

The HVAC technicians will connect ductwork from the new air handler to your home’s existing ducts. New ducts may be fabricated and installed if needed. All duct joints are sealed for maximum efficiency.

Leak Checks and Test Runs

With installation complete, the AC system is pressurized and extensive leak checks are performed. Test runs help ensure all components are functioning properly before full operation. Your AC installer will verify proper air flow and temperature.

Following industry best practices for installation is vital for energy efficiency, performance, and longevity of your new AC system. Reputable companies have extensive training and expertise.

Average AC Installation Costs

The cost of a new air conditioner installation can range widely depending on the type and size of the system. On average, homeowners pay between $3,000-$12,000 to install a new AC unit.

The main factors affecting AC installation costs include:

• Type of AC: Central air systems are more expensive than ductless mini-splits. Portable ACs are the most budget-friendly option.

• Size: Measured in tons (12,000 BTUs), larger capacity units cost more. Prices range from $800-$4,500 per ton of cooling capacity needed.

• Efficiency: Units with higher SEER ratings are more expensive but save on energy bills. Expect to pay $600-$1,000 more for each SEER point above 14.

• Additional parts and labor: Costs add up for things like ductwork modifications, wiring, permits and custom installation requirements.

• Location: Prices are higher in areas with higher labor and living costs. Complex installations in older homes also run higher.

• Brand: Premium brands like Carrier, Trane and Lennox tend to cost more than budget brands.

There are ways to offset the upfront costs of AC installation:

• Rebates: Many utility companies offer $100-$500 rebates on qualifying energy efficient AC units and installations.

• Financing: Many AC installation companies offer low-interest or no-interest financing for 6-24 months. Third party financing like a home equity loan is also an option.

Getting multiple quotes is recommended to find the best value based on your specific needs. Be sure to verify all details of the project quote including parts, labor and any hidden fees.

Caring for Your New AC System

After investing in a new air conditioning system, it’s important to perform regular maintenance to keep it running efficiently for years to come. Following the manufacturer’s recommended tips for maintenance and care is key.

Change Filters Regularly

AC filters play a critical role in trapping dust, allergens, and other particles before they can circulate through your home. Check your filter every 1-3 months, and replace it as needed. Some high-efficiency filters may need changing every 1-2 months. Consult your AC manual to find the right timeframe and filter specifications.

Schedule Professional Check-Ups

While DIY maintenance like changing filters is important, it’s also wise to have a licensed HVAC technician inspect your AC unit at least once a year. They can check refrigerant levels, tighten connections, clean coils, and ensure all components are functioning properly. Many offer spring tune-ups to prep ACs for summer.

Maintain Clear Area Around Outside Unit

It’s essential to keep the area around your external AC condenser clear. At least 2 feet of space on all sides allows proper airflow. Remove any plants, furniture, or other objects obstructing the unit. Also keep the area free of debris and overhanging tree branches.

Proper AC system care goes a long way in preventing issues, extending equipment lifespan, optimizing energy efficiency, and keeping repair costs down. Following basic maintenance best practices gives homeowners the peace of mind of reliable cooling all summer long.

Deciding Between AC Repair vs Replacement

When your air conditioner breaks down or starts to lose cooling capacity, you have two options – repair it or replace the entire unit. There are several factors to weigh when deciding between AC repair or replacement.

Comparing Costs

The cost of repairing an older AC unit can sometimes approach the cost of replacing it entirely. Factors like the unit’s age, needed repairs, and the availability of parts impact the repair cost. Replacing a very old, inefficient AC unit with a new energy-efficient model may yield long-term energy savings that offset the higher initial cost.

Assessing System Age and Efficiency

Most AC units last 10-15 years. Older units often use R-22 refrigerant, which is being phased out due to environmental concerns. If your AC unit is over 10 years old, repair costs may be high, and efficiency will be lower than a new unit. Upgrading to a new unit may be worthwhile.

Identifying When Repair Is Not Worthwhile

If the cost of repairing an older AC unit exceeds 50% of the cost of replacing it, replacement may be the better option. If you’ve had to repair the same component multiple times, replacement avoids repeating repairs.

Upgrade Benefits of a New System

A new AC unit provides improved efficiency, quieter operation, smarter controls, and greater reliability. New units use eco-friendly refrigerants and have higher SEER ratings, lowering your energy costs. Upgrading your AC can improve home comfort for years to come.

The Bottom Line

Consider both the short and long-term costs of AC repair versus replacement. An aging, inefficient system may benefit more from replacement than ongoing repairs. Discuss options with HVAC professionals to make the right choice.

FAQs About AC Installation

What size AC unit do I need for my home?

The proper size AC unit for your home depends on several factors – square footage, number of rooms, climate, window area, insulation, and more. An AC professional should perform load calculations to determine the ideal capacity in BTUs for your cooling needs. Oversized units reduce humidity and wear out quickly while undersized units won’t keep you cool.

How much does it cost to install central air?

The average cost to install central air is $3,000 to $12,000 depending on the type and size of the system. Prices are higher for larger, more energy-efficient units. Additional costs may include ductwork modifications, permits, disposal fees, and extras like smart thermostats.

Should I repair or replace my old AC?

If your AC is over 10 years old, replacement is likely a better investment than repairing an outdated, inefficient system. Newer ACs use as little as 50% of the energy while providing superior comfort. Upgrading before your AC fails can prevent emergency replacements during hot weather.

What permits do I need to install AC?

Permits for AC installation vary by municipality. Many areas require an electrical permit, mechanical permit, or HVAC permit from the building department. The AC company usually obtains any required permits, but homeowners should verify. Permits assure proper installation and code compliance.

How disruptive is installing AC?

The installation process requires accessing installation sites, mounting equipment, running ductwork, and wiring. This involves drilling holes, lifting equipment, moving insulation, and generating noise. Most of the intensive work is done over 1-3 days. The installers isolate and protect the work areas to minimize dust and disruption.

Should I be home during AC installation?

It’s not necessary to be home during the installation but a homeowner should be available for consultation about placement, ductwork, thermostat wiring, and other preferences. Some key decisions may come up during the installation process so flexibility is recommended if possible.

Let me know if you would like me to expand on any other common AC installation questions!