How to Choose the Right Commercial Packaged Unit for Your Building - Video

"Choose the right commercial packaged unit for your building – HVACDirect.com with ACiQ and Goodman rooftop units

Key Takeaways

  • All-in-One Commercial Packaged Units: These systems house every HVAC component in one heavy-duty steel cabinet, making installation and servicing simpler for commercial spaces.
  • Choose the Right Type for Your Climate: Select from packaged ACs for cooling, heat pumps for milder regions, or gas packs that combine AC with a furnace for areas with hot summers and cold winters.
  • Sizing & Installation Made Easy: Check the ID tag or model number on your current unit to size properly, or send building drawings for new installs. HVAC pros can help ensure the best fit for your space.

Looking for a reliable, space-saving HVAC solution for your building? A commercial packaged unit places all major components—compressor, coil, blower, and controls—inside one heavy-duty steel cabinet. This all-in-one design simplifies installation and service while delivering efficient comfort for offices, retail, restaurants, and light industrial spaces.

What Is a Commercial Packaged Unit?

A packaged HVAC system conditions air by circulating refrigerant to absorb heat and humidity indoors and release it outdoors. Depending on your climate and budget, you can choose cooling-only or heating + cooling configurations to match your needs.

Choose the Right Type for Your Climate

Packaged AC (Cooling-Only)

Best for warm regions where heating demand is minimal. A packaged air conditioner removes heat and moisture from indoor air to keep occupants comfortable and productive.

Packaged Heat Pump

Packaged heat pumps are ideal for milder climates. These systems cool like a packaged AC, then reverse refrigerant flow to provide efficient electric heat during cooler days—no gas line required.

Gas Pack (Gas/Electric Packaged Unit)

Gas electric packaged units are perfect for areas with hot summers and cold winters. A gas pack combines AC cooling with a high-efficiency gas furnace for reliable heat during deeper cold snaps.

Capacity, Power, and Fit

  • Capacity Range: Common commercial sizes span 3–25 tons to match small suites up through larger retail or multi-tenant applications.
  • Electrical Options: Typical power configurations include 208/230V single-phase, 208/230V three-phase, and 460V three-phase. Verify your building service before ordering.

How to Size Your Replacement or New Install

Replacing an Existing Unit

  1. Check the ID tag: Look on the unit’s exterior or inside the access panel for model and tonnage.
  2. Verify documentation: If the tag is missing, find the model on prior invoices or service records, or contact the manufacturer.

First-Time Installation or New Construction

Share your mechanical drawings and load information with an HVAC professional. They’ll recommend the right packaged rooftop unit (RTU) or ground-mount model, airflow (CFM), and accessories for code-compliant performance.

Pro Tips for a Smooth Project

  • Match the unit to the climate: Cooling-only for hot regions, heat pump for mild seasons, gas pack for wide temperature swings.
  • Plan the electrical: Confirm voltage/phase early to avoid site delays.
  • Use the right accessories: Curb/adapters, disconnect, whip, thermostat, and transition fittings help ensure safe, efficient operation.

Get Expert Help

Still unsure which commercial packaged HVAC system is best for your space? Talk with a pro. With your site conditions and goals, they can size accurately and recommend the best value for comfort, efficiency, and long-term reliability.

September 4, 2025