Stepping into a cool, conditioned room during a sweltering summer day is one of life’s simple pleasures. But have you ever stopped to wonder what kind of sorcery makes this possible?

That sorcery is actually a marvel of engineering known as an air conditioning system. This cool (pun intended) piece of technology has been the unsung hero of comfort for many years.

To appreciate it fully, let’s dive into its fascinating inner workings and learn about the key players in this refreshing drama.

Person in a room with an air conditioner

Welcome to Everest HVAC & R, the summit of air conditioning services in Perth and the surrounding areas. For years, we’ve been the trusted name in delivering top-tier HVAC solutions, guiding our clients to the peak of comfort in their homes and offices.

Our reputation isn’t just built on thin air – it’s the result of our commitment to superior service, cutting-edge technology, and an unwavering focus on customer satisfaction.

Whether you’re in the heart of Perth or in the beautiful locales encircling it, Everest HVAC & R is your partner in embracing a cooler, more comfortable environment.

So, strap on your climbing gear, and join us on a journey to the pinnacle of perfect climate control with Everest HVAC & R.

The Refrigerant

First, meet the star of the show, the refrigerant. This special fluid is like the magical potion that makes the air conditioning system tick.

As it journeys through the system, it undergoes a series of transformations, changing from a low-pressure gas to a high-pressure liquid and back again.

The refrigerant’s most important trait is its ability to absorb and release heat. As it flows through the indoor parts of your air conditioner, it greedily gobbles up heat from the surrounding air, cooling it down for your comfort.

Photo of R-22 Refrigerant for air conditioning

Then, like a heat exchanger relay racer, it carries this absorbed heat outdoors and releases it into the wild, preparing to start the whole cycle anew.

Now, you might have heard about different types of refrigerants. The most famous (or infamous) is probably R-22, also known as Freon.

Freon was once the superstar refrigerant in most air conditioning systems, but it had a dark secret. It was found to be harmful to the ozone layer, and hence it’s being phased out. Its replacement, R-410A, is a more environmentally friendly choice that’s becoming the new normal.

The Compressor

Next up is the unsung hero of the air conditioning system, the compressor. Think of it as the heart of your air conditioner. Located in the outdoor unit, the compressor’s job is to pump life into the refrigerant.

Like a fitness trainer pushing an athlete to the limits, the compressor squeezes the refrigerant, raising its pressure and temperature.

The result is a supercharged, high-pressure gas ready for the next stage of its journey. The compressor then proudly sends this gas off to the condenser, like a relay racer passing the baton.

The compressor plays a crucial role in the cooling process and is a testament to the ingenuity of engineering that goes into making our summers bearable.

The Condenser

Meet the condenser, the next crucial character in our cool story.

Often sharing the outdoor housing with the compressor, the condenser is like a heat exchanger Olympian, flexing its muscles to dissipate the heat carried by the refrigerant.

The high-pressure gas from the compressor enters the condenser’s coil. As the refrigerant flows through the coils, it encounters a fan that blows outdoor air across the coils.

This clever design enables the refrigerant to release its heat into the atmosphere.

Air Conditioning Condenser

Remember our refrigerant that was supercharged and heated by the compressor? Well, the condenser transforms this hot gas back into a high-pressure liquid, now cooled down.

This high-pressure liquid is now ready for the next stage of its journey, a trip to the expansion valve.

The Expansion Valve

Meet the conductor of our cooling orchestra, the expansion valve. This crucial component sits like a gatekeeper between the two sets of coils, controlling the flow of the refrigerant.

Picture it as a maestro, releasing the high-pressure liquid refrigerant in perfect rhythm, ready for the next act in our cooling symphony.

The expansion valve is like that cool uncle at a party who knows just when to chill things down. As the high-pressure liquid refrigerant enters the expansion valve, it releases the pressure, causing the refrigerant to cool down significantly.

This process allows the refrigerant to expand and turn into a low-pressure gas, all prepped and chilled for its grand entry into the evaporator.

The Evaporator

Now comes the spotlight moment for our evaporator, the heart of the indoor unit of the air conditioning system.

Think of the evaporator as the stage where the magic of cooling truly comes to life.

As the cold, low-pressure refrigerant makes its entrance into the evaporator coils, it is met with a wave of warm indoor air, blown over the coils by a fan.

This meeting is like a dance, where the refrigerant absorbs the heat from the air, leaving behind a cool breeze that is circulated back into your room.

Refrigerant absorbs the heat from the air

As the refrigerant sashays through this dance, it absorbs heat and transforms back into a low-pressure gas, all while maintaining that cool demeanor. This is where it gets its name – the evaporator.

The Air Handler or Blower

Finally, let’s give a round of applause for the unsung hero of our cooling saga – the air handler or blower. Part of the indoor unit, it’s the diligent worker behind the scenes, ensuring that the show goes on smoothly.

Like a dedicated stagehand, the air handler pulls in warm air from your room, directing it over the evaporator coils for a cool makeover. Once the air has been cooled, the blower sends it back into the room, like an encore performance of your favorite act.

But wait, there’s more! If the heating function is in use, the air handler steps up its game. It directs the warm air over a heating element, ensuring your comfort not just in the sweltering summers, but also during those chilly winter nights.

The Filter

Let’s hear it for the unsung hero of the air conditioning world – the filter.

Now, while it may not be the star of the show when it comes to cooling, the filter plays a vital supporting role that can’t be overlooked.

Think of it as the diligent stagehand, tirelessly working behind the scenes to ensure that every performance goes off without a hitch.

Nestled comfortably in the air handler, the filter serves as the air conditioning system’s very own bouncer.

Air Conditioner filter

It screens the air as it’s pulled into the system, removing dust, pollen, and other airborne particles. This is like the bouncer at a fancy club, ensuring that only the VIP (Very Important Particles) make it into your air supply.

Not only does the filter help improve air quality, but it also acts as a protector, preventing these particles from staging a hostile takeover on the evaporator coils.

Without the filter, these particles could build up on the coils, hampering the system’s efficiency and turning your cool haven into a lukewarm letdown.

The Thermostat

All hail the thermostat, the commander-in-chief of the air conditioning system. It’s the nerve center, the control tower, the bridge on the Starship Enterprise – you get the picture. The thermostat is where you, the user, get to set the stage for your ideal comfort.

Imagine you’re the director of your own movie called “Perfect Climate”. The thermostat is your storyboard, allowing you to set your desired temperature and maintain it. It’s your magic wand, your command center, your remote control for comfort.

But that’s not all. Some thermostats have upped their game and joined the ranks of the smart devices. These programmable thermostats let you set different temperatures for different times of the day or different days of the week.

Want it cooler in the evenings and warmer in the mornings? No problem. Going on vacation and want to save energy? Easy peasy.

With a programmable thermostat, you’re not just directing your comfort; you’re producing a masterpiece. So here’s to the thermostat, the maestro of your air conditioning symphony. Keep those cool vibes coming!

In recent years, there have been several advancements in air conditioning technology that are noteworthy:

Sustainable HVAC Systems:

In an age where ‘going green’ is more than just a trend, it’s a lifestyle, sustainable HVAC systems have stolen the limelight.

They’re not just the superheroes of the HVAC world, they’re our partners in the fight against energy waste, carving out a path for a more sustainable future.

Imagine a world where energy analysis software acts as your personal environmental consultant, providing a cost/benefit analysis that drives energy improvement.

That’s right – we’re harnessing the power of technology to help architects design buildings with a lifetime of energy conservation in mind.

Eco-friendly innovations are sensor vents

Next up in our line-up of eco-friendly innovations are sensor vents.

They’re like the tech-savvy wizards of the HVAC world.

With sensor-enhanced vents, you can digitally control the climate of a room or your entire home using mobile applications.

These sensors not only gather and transmit data to improve energy consumption but also ensure your comfort is never compromised.

Ice-powered air conditioning

And now for something a bit frosty – ice-powered air conditioning.

Think of it as a cool retreat during those hot summer days.

These advanced air conditioning units, powered by ice, can provide a cool environment for up to 6 hours.

They’re the night owls of the HVAC world, freezing water in the tank overnight and charging up to provide a cool environment during the day.

And the cherry on top?

They consume significantly less energy than traditional air conditioning systems.

Dual fuel heat pump:

Last but not least, we present the dual fuel heat pump. This technological marvel combines a full-sized gas furnace and an electric heat pump in a single package.

It’s like the chameleon of heating systems, switching to gas during sub-freezing temperatures to efficiently keep the house warm.

So, no matter what Mother Nature throws at you, you’ll be ready with a sustainable HVAC system that’s got your back!

Smart Thermostats:

Say goodbye to the days of basic temperature regulators and say hello to the age of smart thermostats!

These nifty gadgets have taken up residence in our homes transforming them into futuristic abodes of comfort. Smart thermostats are like the ultimate multi taskers of the HVAC world.

They can connect with other smart home systems turning your home into an interconnected orchestra of technology 

Imagine changing room temperatures with a simple voice command or programming routines for automated temperature control  that’s the kind of power we’re talking about.

So sit back, relax and let these clever thermostats do the hard work for you.

Internet of Things (IoT):

Welcome to the era of the Internet of Things (IoT) where your HVAC system is not just a machine but a smart device that talks to you and even takes care of itself! IoT technology is revolutionising HVAC systems breathing a new life into them with features like preventative maintenance and energy efficiency.

These systems can communicate with other connected devices giving you a glimpse into their world. They’re like the intelligent butlers of your home keeping tabs on energy usage heating and cooling and equipment status. And the best part?

They’re proactive They can suggest maintenance and provide personalized suggestions to keep your system running at its best while conserving energy. Now that’s what we call smart living

Virtual Reality (VR) Training:

In the HVAC industry Virtual Reality (VR) is not just a cool gadget for games it’s a powerful training tool that’s shaping the future of the workforce.

Imagine strapping on a VR headset and stepping into a virtual environment where you can practice troubleshooting and installing HVAC systems without the risk or cost of real world mistakes. This is the power of VR training. It’s like a dress rehearsal for the real world where technicians can sharpen their skills before stepping onto the stage.

With VR we’re not just training technicians we’re preparing them for a future where technology and reality intertwine.

By understanding these advancements you can keep up to date with the latest trends in air conditioning technology.

Whether you’re a homeowner looking to upgrade your system an HVAC technician wanting to expand your skills or a business owner seeking to stay competitive in the industry keeping up with these developments is essential.


And there you have it folks!

We’ve journeyed together through the intricate world of air conditioning systems from the humble filter to the commanding thermostat.

We’ve seen how each component each actor in our little drama plays a unique and essential role in maintaining our comfort during those sizzling summer months.

But understanding the anatomy of an air conditioning system isn’t just about satisfying our curiosity. It’s about empowering ourselves.


With this knowledge we can take more informed actions when it comes to maintaining and troubleshooting our systems.

We can make smarter choices about energy use potentially saving money and reducing our environmental impact.

Moreover we can truly appreciate the marvel of engineering that makes our modern lives more comfortable.

So next time you relax in the cool breeze from your AC spare a thought for the incredible symphony of components working together to deliver that breeze.

Here’s to the heroes of our everyday comfort the components of an air conditioning system. May they continue to keep our lives cool one cycle at a time.

And remember whether it’s a sweltering summer afternoon or a hot, sticky night your air conditioner has got your back working tirelessly to ensure you stay cool, comfortable and happy.

Now isn’t that a comforting thought?