5.4 NOISE CONSIDERATIONS
System operation noise has been rated against ISO 3745:2012 for following levels:
• SOUND PRESSURE LEVEL = 42 Db(A)
• SOUND POWER LEVEL = 61 Db(A)
Test conditions for readings are equivalent to 1.65m from system. Operating sound levels
may vary based on enviromental conditions such as fences/walls or depending on stage of
heat cycle.
The operation of an electric heat pump is very similar to a refrigerator, but in reverse. A heat
pump operates by transferring heat from the ambient outside air into the water. Electricity
is just used to operate the system, but not to directly heat the water. Because of this energy
system will be at heating water.
inner cylinder for thermal conductivity. A temperature sensor in the tank is used to control the
heat pump operation to achieve suitable tank temperature.
During the occasional times when the ambient weather conditions aren’t suitable for the heat
pump to operate, the electric element will provide heating to ensure a supply of hot water.
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• Do not install less than 3 metres from a neighbour’s window or door (aside from garage door or shed).
• It is highly recommended that the system be programmed to run when noise is not objectionable, for
example between 9am and 6pm, or that the system be located away from bedrooms.
• If you are experiencing noise issues with your system, please contact Aquatech directly. There are mean
to mitigate the sound produced when the system is operational.
To optimise system efficiency & limit disturbances, please set the system to TIMER
Mode and use the built-in timers to run the system during the day. The factory setting
of TIMER Mode limits operating time between 09:00 and 18:00, complying with
EPA-prohibited operating hours.
HEAT PUMP - OPERATING PRINCIPLE
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