Commercial HVAC Equipment: AC, Heating, Refrigeration & Coolers

Voomi Supply carries commercial HVAC equipment for buildings, warehouses, and industrial facilities, including packaged gas/electric units, wall-mount package AC units, electric heat kits, portable evaporative coolers, and refrigeration condensing units, from brands like Daikin, Goodman, Carrier, Bosch, Copeland, and Bohn. Shop in-stock equipment with detailed technical specifications on every listing and US-based support to help size the right system for your building.

Why buy from Voomidatasheet
Equipment typesPackaged AC, heating, refrigeration & coolers
Capacities1 to 5+ ton and multi-HP units
ShippingFreight delivery, 1-3 business days
SupportUS-based experts
BrandsDaikin, Goodman & more
Find the right commercial unit
Packaged & SplitAC, heating & refrigeration equipment
Freight Delivery1-3 business days, liftgate included
Trusted BrandsDaikin, Carrier & more
US SupportHelp sizing capacity & tonnage
30-DayReturns on most items

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Types of commercial HVAC equipment

Commercial HVAC equipment covers a wider range of formats than residential systems, sized and configured for buildings, warehouses, and specialty spaces.

TypeHow it's usedBest for
Packaged gas/electricSelf-contained rooftop or ground-level unit combining heating and coolingRetail, office, and light commercial buildings
Wall-mount package unitsCompact self-contained cooling or heat pump unit mounted through a wallMotels, classrooms, and additions without ductwork
Electric heat kitsAdd-on heating elements installed inside an air handler or package unitAll-electric buildings or supplemental heat
Portable evaporative coolersCools large open spaces using water evaporation rather than refrigerantWarehouses, manufacturing floors, and outdoor events
Refrigeration condensing unitsProvides mechanical cooling for walk-in coolers, freezers, and refrigerated casesRestaurants, grocery, and cold storage

Sizing basics for commercial AC

Commercial AC sizing depends on square footage, ceiling height, occupancy, and heat-generating equipment inside the space, not square footage alone. A rough starting point:

Building sizeTypical cooling capacity
Up to 1,500 sq ft3 to 4 tons
1,500 to 3,000 sq ft4 to 6 tons
3,000 to 5,000 sq ft6 to 10 tons
Warehouse / open floor planOften sized by portable evaporative cooling in CFM and square-foot coverage rather than tonnage

A proper load calculation from a licensed HVAC contractor accounts for insulation, window area, and internal heat loads, and should always be used for final sizing.

Portable evaporative cooling for large spaces

Portable evaporative coolers lower air temperature by passing warm, dry air through water-saturated pads, which is far less expensive to run than refrigerant-based cooling but works best in low-humidity climates with good ventilation. Units like the Portacool Apex 6500 can cover thousands of square feet in a warehouse or manufacturing floor, moving large volumes of air (measured in CFM) rather than cooling a sealed, conditioned space the way refrigerant-based AC does.

Things to consider before you buy

  • Confirm voltage and phase (single-phase vs. three-phase) match your building's electrical service before ordering
  • Packaged units are typically shipped LTL freight and are heavy enough to require a lift gate and rigging plan
  • Refrigeration condensing units are matched to specific refrigerant types (R404A, R134A, R22) that must match your existing system
  • Evaporative coolers work best in low-humidity climates and need adequate ventilation for exhaust air
  • Installation, electrical connections, and refrigerant work should be handled by a licensed HVAC contractor

Commercial HVAC glossary

Ton (of cooling)
A unit of cooling capacity equal to 12,000 BTU per hour; commercial units are often sized in tons. Shop commercial AC units →
Packaged unit
A self-contained system with all components, both heating and cooling, in a single cabinet. Shop packaged AC units →
EER
Energy Efficiency Ratio; cooling output divided by power input at a specific test condition, used mainly for packaged and window units. Shop commercial AC units →
SEER2
The updated Seasonal Energy Efficiency Ratio rating used for AC and heat pump equipment sold in the US. Shop commercial heating →
CFM
Cubic Feet per Minute; measures the volume of air an evaporative cooler or blower moves. Shop evaporative coolers →
Condensing unit
The outdoor component of a refrigeration or AC system that compresses and condenses refrigerant. Shop refrigeration units →

Frequently asked questions

How do I choose the right commercial AC unit?

Start with a load calculation based on square footage, ceiling height, insulation, window area, and internal heat sources like kitchen equipment or server rooms, not square footage alone. A licensed HVAC contractor can confirm the right tonnage and unit type for your building.

What's the difference between a packaged unit and a split system?

A packaged unit combines heating and cooling components in a single outdoor cabinet, while a split system separates the indoor air handler from the outdoor condenser. Packaged units are common on light commercial buildings with rooftop installation.

Are portable evaporative coolers effective for warehouses?

Yes, in low-humidity climates with adequate ventilation. Evaporative coolers move large volumes of air and cool it through water evaporation, which works well for open industrial spaces but is less effective in humid regions or fully sealed buildings.

What voltage do commercial HVAC units typically use?

Light commercial equipment often runs on standard 208/230V single-phase power, similar to residential systems, while larger commercial heating and refrigeration equipment frequently requires 460V three-phase service. Always confirm your building's electrical service before ordering.

What refrigerant do commercial refrigeration units use?

Common refrigerants include R404A, R134A, and R22, though R22 is being phased out and is increasingly hard to source. Always match a replacement condensing unit to the refrigerant already in your system, or plan for a full retrofit if switching refrigerants.

How much does commercial HVAC equipment cost?

Costs vary widely by capacity and type, from around $1,500 for an electric heat kit add-on to $5,000 to $8,000 or more for a multi-ton packaged system or refrigeration condensing unit. Installation, electrical work, and ductwork are typically additional.

Can I install commercial HVAC equipment myself?

Electrical connections, refrigerant charging, and gas line work require a licensed HVAC contractor and typically a permit. Most commercial equipment is also heavy enough to require rigging or a crane for rooftop placement, which is outside the scope of a DIY install.

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