So... What Exactly Is an Air Handler?
If the condenser is the “brawn” of your AC system, the air handler is the “brains and lungs.” It circulates the cool air throughout your home, filters it, and often contains a blower motor, evaporator coil, and electrical controls.
Think of it this way: the outdoor unit cools the air, but the air handler gets it into your living room, your kid’s bedroom, and the kitchen while you cook.
Key Parts of an Air Handler
Here’s a quick breakdown of what’s inside most air handlers:
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Blower Motor – Pushes air through your ductwork.
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Evaporator Coil – Absorbs heat from your indoor air.
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Filter Rack – Cleans the air before it gets to your lungs.
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Drain Pan – Collects condensation and drains it away.
🔎 Learn more: Goodman AMST Multi-Position Air Handler Specifications (PDF)
Matching Matters: Pairing Your Air Handler with an R-32 System
If you’re buying a new R-32 AC condenser, you must pair it with a compatible air handler—one that supports:
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R-32 refrigerant
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Proper coil and line sizes
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Matching airflow rates (CFM)
Pairing mismatched equipment leads to efficiency loss, comfort issues, and voided warranties.
✅ This set is perfectly matched:
🔗 Goodman 2.5 Ton 14.5 SEER2 R-32 AC and Air Handler System
Common Air Handler Configurations
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Multi-Position (like the Goodman AMST)
Works in upflow, downflow, and horizontal applications. Great if you're unsure of install constraints. -
Vertical vs. Horizontal
Pick based on your existing duct layout. Horizontal is typical for attics, vertical for closets/basements. -
Cased vs. Uncased Coils
Cased coils are easier to install and protect internal components better.
🛠️ Tip: Installing in the attic? Be sure to read Installing Air Handlers in Attics – Building America Solution Center
Features Worth Paying Attention To
Here’s what I looked for when we replaced our air handler:
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Multi-speed or variable-speed blower – Quieter operation and better humidity control.
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ECM Motor – Saves energy vs. standard PSC motors.
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Factory-installed TXV – Optimizes refrigerant flow for R-32.
Samantha’s Shopping Checklist 📝
Before you buy, make sure your air handler:
✔ Matches your condenser’s tonnage and refrigerant
✔ Fits your home’s ductwork and space layout
✔ Includes the right blower motor type for your comfort goals
✔ Meets or exceeds local code for efficiency and safety
And remember—your air handler works year-round, even in heat pump setups. So don’t cut corners here.
One Last Tip Before You Click “Add to Cart”
If you're not sure what fits your home best, talk to your HVAC contractor or call The Furnace Outlet’s team. They helped me find the perfect R-32 match without upselling me on stuff I didn’t need.
A properly matched air handler is the difference between "meh" airflow and that crisp, even cool that makes summer bearable.
