Fairair - The right advice means the right choice

Noise Calculator

How much noise does the air conditioner make?

The amount of noise generated by air conditioning systems can be a sensitive topic, and it needs to be considered before you install an air conditioning system. The outdoor units of air conditioners have a label stating how much noise they generate. Noise intensity reduces over distance, and can also be reduced by fences or barriers.

This noise calculator will give you the maximum value to look for on the compulsory label on the outdoor unit. This is based on the AIRAH recommended maximum noise levels from your air conditioner at your property boundary; 45dB(A) maximum during the day and 35dB(A) maximum at night. Please note that this is a recommended figure only - most councils around Australia have varying noise regulations, so make sure your licensed installer takes them into account when they quote your job.

To ensure your air conditioner complies with our recommendations (and for the peace of your neighbours!), follow this simple calculation:

1. 1


m


2. 2


Having a barrier between the proposed air conditioner location and the noise-sensitive location on the neighbouring property will reduce noise problems. Which of the following applies to your proposed location?

Barrier factor







3. 3


Noise can bounce (or 'reflect') off flat surfaces, so the number of flat surfaces near the proposed installation site and their locations need to be taken into account. Which of the following best describes the proposed air conditioner location?

One reflective surface:


Reflective surfaces







Maximum sound power level:
Day = dB(A)
Night = dB(A)
Location of air conditioner


Location of air conditioner


Location of air conditioner


Location of air conditioner


Location of air conditioner


Location of air conditioner


Location of air conditioner


Location of air conditioner


Location of air conditioner


Barrier factor


Barrier factor


Barrier factor


* The figure given is based on the data supplied and is indicative only. Advice should be sought from the installer on the exact location of the unit to ensure compliance with state and local noise regulations.

The above figures are the maximum noise outputs allowed for the proposed air conditioner location you've described. Also be aware that local noise regulations change from time to time, and some councils may have exceptions or differing regulations. Councils have the power to stop you using your air conditioner or forcing you to relocate the outdoor unit if it is too noisy, so make sure the contractor gets it right first time!

Please note that the result above is based on a single outdoor unit. If you are proposing installing an air conditioning system with multiple outdoor units you will need to seek further advice from a licensed contractor, as multiple outdoor units will affect the outcome.