Is It Time for a Change? Smart Retrofitting and Upgrading Tips for Your R‑32 Packaged AC

👋 Hey there! Samantha here...

So, your current packaged AC unit is acting up—or maybe it’s just old school. You’re hearing more about R‑32 systems and wondering if it’s time to join the future of cooling. But let’s be real: upgrading an HVAC system can feel intimidating. That’s where I come in 💁♀️

Today we’re breaking down when it makes sense to retrofit (aka adapt your existing system), when you should just upgrade, and what to look for if you’re buying a new R‑32 packaged unit, like the ones in The Furnace Outlet’s R‑32 collection.

Let’s demystify the process and help you feel confident about your next move. 🔧🌿

 

1️⃣ What is Retrofitting, and Is It Even Possible?

Retrofitting an HVAC unit means adapting or modifying an older system—like one designed for R‑22 or R‑410A refrigerants—to work with a newer, more eco-friendly refrigerant like R‑32.

But here’s the thing: you can’t simply drop R‑32 into an old unit.

R‑32 is classified as an A2L refrigerant, which means it's mildly flammable and requires specific handling, materials, and pressure profiles. According to the U.S. EPA, A2Ls can only be used in equipment specifically designed for them. That means:

• Different expansion valves

• Sealed electrical components

• Venting and airflow modifications

• Special sensors and leak detection features

So unless your existing system was originally designed for A2L refrigerants (unlikely if it's more than 5 years old), retrofitting for R‑32 is not recommended.

Instead, upgrading to a system that’s purpose-built for R‑32—like a residential packaged AC unit—is the safer and more cost-effective path.

 

2️⃣ Why R‑32 Packaged Systems Are Worth the Switch

Here’s why more homeowners (like me!) are choosing R‑32 packaged systems:

🌎 They’re Better for the Environment

R‑32 has a Global Warming Potential (GWP) of 675, compared to 2,088 for R‑410A. According to the Climate & Clean Air Coalition, it’s one of the most climate-friendly refrigerants available at scale.

🧠 They’re Smarter and More Efficient

Packaged units that use R‑32 often include variable speed compressors, integrated diagnostics, and improved seasonal energy efficiency ratios (SEER2).

💰 They Save Money Long-Term

Because they’re more efficient and meet 2025 refrigerant standards, they may qualify for federal tax credits or local utility rebates. Energy.gov maintains a list of programs you can check based on your ZIP code.

 

3️⃣ Should You Retrofit or Replace?

Let’s break it down side by side:

Unless your system is less than 5 years old and already A2L-compatible, a full upgrade makes more sense—especially when safety, energy use, and peace of mind are on the line.

 

4️⃣ Safety Considerations When Switching to R‑32

This isn’t just about performance—it’s about safety too.

Because R‑32 is mildly flammable, installing or servicing systems with it requires:

• A proper ventilation strategy

• Leak detectors in enclosed spaces

• Certified tools designed for A2Ls

• Installers with EPA 608 certification

If you're working with a local tech, make sure they understand ASHRAE Standard 15, which governs A2L refrigerant use.

 

5️⃣ What to Look for in an R‑32 Packaged AC

If you’re going all in on a new unit, here’s what to watch for:

✅ Key Features

• SEER2 ratings of 14.5 or higher

• R‑32 refrigerant only (not dual-gas units)

• Galvanized steel cabinet with anti-corrosion coating

• Factory-installed TXV (thermal expansion valve)

• Integrated diagnostic board

• High-efficiency ECM blower motor

• Properly labeled A2L safety signage

Want an example? Check out this Goodman R‑32 packaged system which includes a high-efficiency scroll compressor and is purpose-built for long-term cooling.

 

6️⃣ Can I DIY the Upgrade?

In a word: no.

R‑32 systems require special tools, evacuation procedures, and pressure testing that must be performed by a licensed HVAC technician.

According to the Refrigeration Service Engineers Society (RSES), improper retrofitting or R‑32 handling can lead to:

• Undetected leaks

• Compressor failure

• Indoor air contamination

• Fire hazards in confined spaces

But don’t worry! Most installations are completed in a day or two by a certified tech, with minimal disruption to your home.

 

7️⃣ The Upgrade Timeline: What to Expect

Here’s how the process usually goes:

📅 Day 1: Consultation & System Selection

The tech assesses your home, ductwork, insulation, and current system size (BTUs).

📅 Day 2: Removal & Site Prep

Old unit removed, slab leveled or replaced, electrical upgrades made.

📅 Day 3: Installation & Test

New unit installed, refrigerant lines charged, pressures tested, startup sequence run.

Many systems, especially self-contained packaged ACs, come pre-charged with R‑32 and require minimal onsite charging.

 

8️⃣ What It Costs

You can expect to pay anywhere between:

• $3,500–$5,000 for a basic 2.5-ton R‑32 packaged unit

• $6,000–$7,500 for a high-efficiency 4-ton unit with smart features

• $8,000+ for multi-zone or hybrid models with heating

Installation labor is around $1,500–$2,000 depending on complexity and permits.

Check DSIRE for rebates in your state—you might qualify for $300–$1,200 in incentives!

 

9️⃣ Samantha’s Upgrade Checklist ✅

Before you switch, make sure you’ve got this covered:

🔲 Know your home’s size (in square feet)
🔲 Check local building codes for A2L refrigerant use
🔲 Get three licensed quotes for system + install
🔲 Ask for an efficiency rating (SEER2) over 14.5
🔲 Confirm proper ventilation and safety signage
🔲 Register your warranty within 60 days

 

👋 Final Thoughts from Samantha

Whether you’re ditching an old R‑410A clunker or just exploring smarter options, upgrading to an R‑32 packaged AC unit is more than a trend—it’s a smart, future-forward move. You’ll get better efficiency, better air quality, and compliance with upcoming refrigerant regulations.

And with pre-charged systems and safer A2L handling baked into the design, there’s never been a better time to switch. My favorite place to start? The R‑32 packaged AC collection from The Furnace Outlet—they’ve got high-efficiency models that are affordable, installer-ready, and built for long-term comfort.

Having trouble with error codes? Browse this: Beep! Blink! Decode This: Understanding Error Codes in Your R‑32 Packaged AC.

Thanks for sticking with me! As always, I’ll be back with more helpful, real-world HVAC insights—straight from my home to yours. 💚

Stay cool, stay smart,
—Samantha