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About the air conditioning energy saver - Shortcomings of typical AC systems



A typical cooling cycle
When switched on, typical air conditioning systems operate continuously until the room thermostat senses the desired temperature and turns the system off. As the room warms up, the thermostat switches the air conditioner back on and the cycle repeats.

Most air conditioning systems are oversized for the majority of operating conditions
Air conditioning systems are usually dimensioned to cope with the extreme cooling demands of the few hottest days of the year (plus a safety margin). However, in most operational conditions, this maximum output is not required and the system is oversized. So running the system continuously until the room thermostat switches it off means that the system operates with excess capacity most of the time. A typical cooling cycle with excess capacity looks like this:

  • When the cycle starts, the compressor pushes cooling energy into the heat exchanger which acts as an energy storage. At this stage, the system works with high efficiency because compressors operate most efficiently when fully loaded.

  • In normal weather conditions, the energy storage is soon fully "charged up". From this point onwards, the compressor provides more cooling energy than the heat exchanger can take up (thermodynamic saturation).

  • Running the compressor beyond this stage does not increase the cooling effect any more. It's just a waste of energy!

How does the Aircosaver™ improve energy efficiency?
The aircosaver compensates the shortcomings of typical AC units and adds intelligence to your AC system. The AIRCOSAVER's sensor-driven software algorithms are designed to detect thermodynamic saturation and to optimize the compressor accordingly. When overcapacity is detected, the AIRCOSAVER™ switches the compressor off and avoids inefficient overcooling.

Your unit switches into "saver mode". The fan keeps running and your system makes maximum use of the stored cooling energy in the heat exchanger. Once the stored energy is used up, the compressor can work efficiently again and is switched back on.

The set room temperature is reached without the inefficient parts of the cooling cycle. This results in significant energy savings without compromising cooling comfort.

Since the correct point to switch the compressor varies from unit to unit and changes with different weather conditions, the AIRCOSAVER™ is constantly monitoring the cooling status of your aircon unit and adapting its settings to ensure efficient operation of your air conditioning system at all times.

Protecting against short cycling
Cycling the compressor too frequently in too short time intervals may harm the compressor and must be avoided. For this reason, the AIRCOSAVER™ features a built-in anti short cycling protection.

Besides the continuous anti short cycling protection, the AIRCOSAVER™ also adds a delay upon power-on to your unit. This valuable feature protects your aircon unit against damages from short power outages like they are common in many developing countries.


The figure below give a good comparison between a unit with the Aircosaver™ and one without:

Aircosavercomp (54K)


To order an Aircosaver™ or arrange an appointment with a sales agent please contact us


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