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Step-by-Step New AC Installation Guide

Home | Blog | Published on August 25th, 2025

Installing a new air conditioning system is one of the most important investments you can make for your home comfort especially in the consistently warm climate of Los Angeles. At Air Plus HVAC, Inc., we walk you through the entire installation process with professionalism, transparency, and attention to detail. Whether you’re replacing an outdated unit or installing central air for the first time, our team ensures a smooth, hassle-free experience from the initial consultation to final walkthrough.

Step 1: In-Home Assessment and Load Calculation

The process begins with a comprehensive in-home evaluation. Our experienced technicians assess factors like your home’s square footage, insulation quality, ceiling height, window placement, and sun exposure. Using this information, we perform a Manual J load calculation a crucial step to determining the appropriate AC system size. Choosing a system that’s too large or too small can lead to inefficiency, uneven cooling, and premature wear. With a properly sized system, you can expect better energy performance, consistent comfort, and long-term cost savings.

Step 2: System Selection and Custom Recommendations

After determining the correct system size, we help you select the best unit for your needs. Based on your preferences, home layout, and budget, we offer personalized recommendations from trusted, high-efficiency brands. Our team explains the benefits of modern features like variable-speed compressors, zoning systems, and smart thermostats, helping you make a confident and informed decision. We also provide guidance on available rebates, energy incentives, and financing options to make your investment more accessible.

Step 3: Safe Removal of Old Equipment

Before the new system goes in, we carefully remove the old air conditioning unit. Our team follows EPA-approved procedures to recover refrigerant safely and responsibly. We disconnect the electrical components and remove any outdated ductwork or parts as needed, always working neatly to avoid disrupting your home. Protective coverings and professional cleanup practices ensure your flooring and furnishings remain safe throughout the process.

Step 4: Precision Installation of the New System

Once your space is prepared, we begin installing your new air conditioning system with precision. Our skilled technicians position and secure all major components, including the indoor air handler, outdoor condenser, evaporator coil, and thermostat. We update the wiring, lay new refrigerant lines, and install a reliable drainage system. If any ductwork modifications are required to improve airflow, we handle them with care to ensure even distribution and quiet, consistent operation throughout your home.

Step 5: Thorough Testing and System Verification

After installation, we conduct a full system test to verify peak performance. This includes checking refrigerant pressure, testing the accuracy of airflow rates, calibrating the thermostat, and inspecting all electrical connections for safety and reliability. We also perform a complete start-up sequence to ensure the entire system communicates effectively and runs without error. Our technicians don’t consider the job finished until the unit runs quietly, efficiently, and meets all quality standards.

Step 6: Customer Walkthrough and Ongoing Maintenance Tips

Once your system is fully operational, we walk you through its features and usage. You’ll learn how to operate your new thermostat, adjust settings for energy efficiency, and understand the maintenance steps needed to keep your AC in excellent condition. We offer practical advice on filter replacement, seasonal tune-ups, and what signs to watch for that may indicate the need for service. Our goal is to leave you feeling confident and in control of your new cooling system.

Why Choose Air Plus HVAC, Inc. for Your AC Installation?

At Air Plus HVAC, Inc., we’re proud to be a trusted HVAC provider serving the Los Angeles area. Our installations are carried out by NATE-certified technicians who adhere to the highest industry standards. With extensive experience, technical expertise, and a focus on customer satisfaction, we ensure every installation is completed efficiently and with care. Fully licensed and insured, we stand behind our craftsmanship and are committed to energy-efficient solutions that last.

Get Started with a Free Installation Estimate

If your current AC is struggling to keep up or if you’re ready to upgrade to a smarter, more efficient system Air Plus HVAC, Inc. is here to help. Schedule a free in-home estimate with our friendly team today, and we’ll guide you through selecting the perfect system for your needs. Let us help you stay cool, comfortable, and in control, just in time for the Southern California heat.

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We highly recommend Air Plus HVAC. We purchased a mid-century house with no ductwork, nor central AC unit. For aesthetic purposes they created a low-profile...

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