How to Choose the Right Commercial Air Conditioner
Commercial spaces always seem to be cool and comfortable, and we have air conditioning systems to thank.
It’s easy to take for granted, but heating and cooling commercial spaces is a mammoth effort that requires specialist equipment and regular maintenance.
The Heating, Ventilation and Air Conditioning (HVAC) systems that keep shops, restaurants, and offices comfortable are a big investment. Choosing the right commercial air conditioner is challenging, so we’re going to explain the basics.
3 Common Types of Commercial Air Conditioning
Commercial AC systems come in three main types:
- Split systems
- Central air conditioning
- VRF systems
Each type works best for different businesses and spaces.
1. Split Systems and Multi-Head Split Systems
The humble split system air conditioner is a common sight in commercial settings!
These small-capacity air conditioners are perfect for cooling a single space, like offices and cafes. They’re affordable, efficient and have minimal maintenance requirements.
If you need to cool additional rooms, you can opt for a multi-head split system. These work the same way as traditional split systems, but the outdoor condenser unit is attached to multiple indoor units without the need for bulky ductwork.
2. Central Air Conditioning
Central air conditioning units are one of the most common options. They consist of a large condenser unit that distributes cool air through ductwork.
The size of these units makes them suitable for small, medium, and large commercial spaces.
These systems come in dozens of formats, but one of the most common varieties is the roof-mounted unit. This is where the condenser units are mounted on the roof of the building, and ductwork distributes cool air through indoor vents.
3. Variable Refrigerant Flow (VRF) HVAC
Variable Refrigerant Flow (VRF) air conditioners are suitable for large and very large commercial spaces. Rather than circulating cool air throughout a building, VRF systems circulate refrigerant to individual air conditioning units.
This gives you fantastic control over the temperature in each zone, and it avoids the need for bulky ductwork.
Like the name suggests, VRF air conditioners can also vary the amount of refrigerant that is circulating through the system at any given moment. This makes them incredibly energy efficient and a popular choice for all types of businesses.
Which Type of AC is Best for Commercial Use?
Variable Refrigerant Flow (VRF) air conditioners are the best choice for medium to large commercial spaces. Split systems or central air conditioning are better for small to medium commercial spaces.
The best AC for commercial use comes down to the type of work you do and how you use your air conditioner.
Speak with the team at Technicool to find out which type of AC is right for your business.
| Split System | Central AC | VRF System | |
|---|---|---|---|
| System price | $ | $$$ | $$$ |
| Energy efficiency | Medium | Low–medium | High |
| Installation complexity | Low | High | Medium–high |
| Space requirements | Minimal | Significant | Medium |
| Best for | Small offices, shops | Large open spaces | Multi-zone buildings |
| Maintenance | Simple | Complex | Moderate |
| Lifespan | 10–15 years | 15–20 years | 15–20 years |
| Noise level | Moderate | Low (indoor) | Low |
How to Choose the Right Commercial Air Conditioning
There are dozens of factors that go into choosing the right commercial air conditioning system. The best system for your business balances comfort, efficiency, compliance and long-term operating costs. Here are some of the most important things to consider:
The size of the area you need to cool
Size is the biggest factor in choosing air conditioning. If you’re cooling a café, retail shop or small office, a split or multi-split system may be sufficient. Larger premises such as warehouses, medical centres or multi-storey offices often require centralised or VRF systems. A professional load calculation will consider everything from the floor area and ceiling height of your space to the insulation and window exposure, helping you avoid under or over-sizing
The type of work you do
Each industry has its own ventilation and air quality requirements under AS 1668.2. For example, restaurants, gyms and healthcare facilities often need higher ventilation rates and fresh air intake than standard offices. Temperature control can also be critical in environments with sensitive equipment or perishable goods. Choosing a system that suits your operational needs helps ensure compliance and a safer, more comfortable workplace.
Energy efficiency and running costs
Commercial air conditioning runs for long hours, so efficiency has a major impact on your operating expenses. High-efficiency systems can significantly reduce power usage. While these systems may cost more upfront, they often deliver strong long-term savings throughout the system’s lifespan.
System zoning and control
Not all areas of a building are used the same way. Boardrooms, open offices, kitchens and storage areas may all have different cooling needs. Zoning allows you to cool only the spaces in use, keeping everyone comfortable and making sure you don’t waste energy. Modern control systems also allow scheduling and remote management.
Maintenance requirements
All commercial air conditioners require regular maintenance. Because they operate frequently and serve larger spaces, they should be inspected, cleaned, and tested every 3–6 months. Proper maintenance improves efficiency, enhances air quality, reduces breakdown risk, and helps extend system lifespan. It also protects your warranty and ensures compliance with safety standards.
Future growth and scalability
If your business is expanding, your air conditioning system should be able to grow with you. Some systems allow additional indoor units or zones to be added later, so planning ahead can prevent costly replacements in the future.
Your budget and lifecycle cost
Commercial HVAC is a significant investment, so it’s important to look beyond the upfront price. Consider installation quality, energy consumption, maintenance costs and expected lifespan. A cheaper system may end up costing more over time if it is inefficient or unreliable. Getting expert advice helps you choose a solution that delivers value long-term.
Working with an experienced commercial HVAC provider ensures your system is correctly designed, compliant and built to perform for years to come.
Why Commercial HVAC is Important
Air-conditioned workspaces can increase productivity by more than 25%, and thermal comfort also has an impact on sales. If your business deals directly with customers and clients, air conditioning creates a comfortable environment that encourages them to spend.
The air around us is filled with dust, pollen, pollutants and much more. Air conditioners filter out these particles, improving air quality and reducing irritants.
HVAC is a legal requirement for some types of businesses. Under AS 1668.2, air conditioning can be used to ventilate a commercial space and remove pollutants, odours, and particles in the air.
Commercial HVAC can account for up to 70% of a building’s energy consumption. Choosing the right air conditioner can reduce consumption and save you tens of thousands of dollars each year. That’s good for your bottom line, and it can help you achieve your green goals.
Choose the Best Commercial Air Conditioning With Technicool!
Commercial air conditioners keep your customers and staff comfortable and happy. There are many options, but the team at Technicool can find the right solution for your business.
Technicool provides commercial air conditioning installation, maintenance and repairs throughout Brisbane. We’re a team of licensed and experienced professionals who can ensure your business is comfortable year-round.
We work with some of Australia’s leading brands like Daikin and Mitsubishi Electric, meaning we can source an air conditioner that’s right for you.
Contact us to learn more or to book a consultation about commercial air conditioning!
Frequently Asked Questions
What are the main types of commercial air conditioning systems?
Commercial air conditioning systems typically include split systems and multi-head split systems for smaller spaces, central air conditioning for larger areas, and Variable Refrigerant Flow (VRF) systems for larger buildings with zone-specific control. Each type has different installation, efficiency and cost profiles.
How do I choose the right commercial air conditioner for my business?
Choosing the right system depends on the size of the space, your business needs, energy-efficiency goals, and budget. A professional HVAC assessment is recommended to ensure the system is suited to your building.
What size air conditioner do I need for my commercial space?
The correct size depends on the total area you need to cool or heat, building design, occupancy levels and heat gain/loss. Undersized units struggle to maintain comfort, and oversized units waste energy. HVAC professionals can perform a load calculation to match capacity with your space.
How often should commercial air conditioning systems be serviced?
Commercial HVAC equipment runs frequently and should be inspected and maintained regularly, typically every 3-6 months, to prevent breakdowns and maintain energy efficiency. Regular servicing also helps prolong system lifespan and compliance with safety standards.