CoolBreeze premium quality evaporative air conditioners are built right here in Australia to handle the climate extremes of this country. No other brand comes close to the performance and airflow capacity of CoolBreeze units.
Here are some of the unique features built into a CoolBreeze Air Conditioner which sets this reliable air conditioner apart from other brands:
Water Management System
Water usage is critical to the operation of evaporative air conditioners. The clever design of CoolBreeze results in a water reservoir of only 11 litres. The unique water management system that pre-cleans the filter panels and washes out the reservoir every day means clean, fresh air every time you use your CoolBreeze.
The Water Management System reduces water usage dramatically, especially when compared to those brands that constantly overfill the unit so it’s always overflowing with water. The unique Counter-Weight Water Release Valve combined with the CoolBreeze Magna-Sensor ensures a totally fail-safe water level setting that never needs adjusting.
Quality
Every CoolBreeze unit is subjected to a stringent quality control process during manufacture that includes test running and calibrating every motor to ensure the reliability of your CoolBreeze.
Weather Proof
The optional CoolBreeze Weather Seal ensures that there are no draughts during the winter months. Not only does this help keep you cosy but it means no climbing on the roof to cover your air conditioner with a tarp or plastic bag. And your CoolBreeze unit is always ready to go on the first hot day of the season.
Exhaust Mode
Only CoolBreeze features a convenient exhaust mode that freshens your home without the need to open windows to the cold outside air. You will find that you use your CoolBreeze 365 days a year. At the touch of a button every ceiling vent of your CoolBreeze system is transformed into a powerful extraction fan, clearing your home of stale air and unwanted odours, be it from burning the toast to pets smells.
Direct Drive Motor
CoolBreeze features a unique ‘under-fan’ direct drive motor that enables a lower profile roof mounted cabinet and also lower running costs compared to barrel type fans. This design allows for closer manufacturing tolerances resulting in quieter operation.
The direct drive motor does away with drive belts and pulleys that need regular adjustment and maintenance.
The “golf ball” like, dimpled surface of the Powerflow fan used on the larger CoolBreeze models ensures maximum air flow with minimum energy.
Evaporation theory
Here’s a simple experiment to show how this works
Blow gently on the back of your hand
Your breath feels warm since it is at body temperature
Now lick the back of your hand (sorry, it’s a bit gross)
Now gently blow on the back of your hand again
Even though your breath is warm, your skin feels cool.
This is because as the moisture evaporated, it removed the heat from your hand.
100% natural cooling
Just air & water
The same principle provides cooling when the sea breeze comes in or when we walk though a forested area.
Although the evaporation process reduces the air temperature, the movement of the air provides the major cooling effect that we feel.
This highlights the need for not only an efficient cooling system but also the need for maximum airflow to provide the desired cooling effect.
Evaporative air conditioning
How it works
Warm air is drawn through wetted filter pads
Outside air temperature is lowered by the evaporative process
Cool air is directed into the home
The cooling effect is dependant on:
- System efficiency
- Air changes allowed/designed
- Prevailing temperature and humidity
Actual temperature
Reduces ‘actual’ temperature
Normally heat radiates from the body out to surrounding walls and ceilings
As the temperature reaches 34 – 35 deg C heat is radiated back to the human body
EAC [Evaporative Air Conditioning] prevents this by absorbing heat from walls/ceilings with a constant flow of cool air
The human body can then radiate heat thus feeling cooler.
Cooling ability
How cold does an evap air conditioner get?
First we need to know two important readings –
- Dry Bulb (Tdb) – The ambient temperature taken with a standard thermometer.
- Wet Bulb (Twb) – The theoretical lowest temperature to which a given body of air can be cooled by evaporating water in it.
Wet bulb temperature is affected by humidity, height above sea level, dry bulb temp and a number of varying factors.
Do the maths
Calculating supply air temperature
Example:
Dry Bulb Tdb = 38 deg C
Wet Bulb Twb = 21 deg C
Standard filter pad efficiency of 80%
Formula would be –
T ins = 38 – (38 – 21) x 80/100
T ins = 38 – 17 x 0.8
T ins = 38 – 13.6
T ins = 24.4 deg C
Humidity
The effect of humidity on evap cooling
In the example calculation, you will notice that the major variable to achievable temperature reduction is the difference between the Dry Bulb and Wet Bulb temperatures.
The Wet Bulb Temperature increases as humidity rises thus the difference (known as Wet Bulb Depression) is reduced.
This is why evaporative air conditioning is not so effective in tropical areas.
On the other hand, in dry, arid areas with low humidity, the Wet Bulb Depression is greater and therefore, so is the possible cooling effect of the evaporative air conditioner.
So Kalgoorlie is the perfect location for evaporative air conditioning.
Airflow
100% fresh cool filtered air everyday
The key to high efficiency evaporative cooling is airflow. As seen in the previous slides, evaporative air-conditioning not only cools the incoming air, but also cools the individuals in the home through the ‘wind chill’ effect where cool breeze helps reduce the perceived temperature.
Airflow is dependent on two factors – the air movement generated by the fan in the air conditioning unit and also by providing adequate opening for the air to pass unrestricted through the home. This means doors and windows open sufficiently for maximum airflow.
