ᐅ Outdoor heat pump unit very noisy – possible solutions? Quiet mode? Effects?

Created on: 31 Jan 2022 10:58
T
Tx-25
Hello,

the outdoor unit of our Elco Aerotop Split 07 air-to-water heat pump is quite loud.
The outdoor unit is located very close to the neighbor’s property, and they have started to complain. I can understand this, as I also find the unit very noisy.
Other units in our new housing development are noticeably quieter.

Are there any ways to reduce the noise level of the outdoor unit? It would probably also help if the unit did not turn on as frequently.

I found one option in the manual:

Silent mode (if available): This function limits the performance of the heat pump system to reduce noise. WARNING: Activating this function limits the maximum output of your heat pump to about 70%, which may result in insufficient heating capacity.

What effects does this have? Does it increase energy consumption, or is this mode harmful to the system? Obviously, I want to avoid the latter. To compensate for the 30% reduction, I would probably need to adjust other settings? Which parameters would those be?
Mycraft31 Jan 2022 17:50
…and of course the return flow. With ERR, this naturally oscillates more than without ERR.
KingJulien31 Jan 2022 19:55
Of course. However, the heating system doesn’t understand why its control variable is behaving so strangely and has never heard of EER before. 😉
That was the question.
Mycraft31 Jan 2022 20:00
....completely correct...was just an addition...
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pagoni2020
31 Jan 2022 21:41
Tolentino schrieb:

I was just warned because my post apparently violated point 1.4 of the forum rules.
I always knew you were a criminal 😎
M
MarEl8589
15 Oct 2025 12:16
Hello everyone,

we are now owners of a single-family house. The previous owner also installed the Elco Aerotop Split 07M-RX/180.

Is this thread still active -@Tx-25
J
jrth2151
15 Oct 2025 15:51
Tx-25 schrieb:


Backyard with trash bins on the left, white outdoor air conditioning unit on brick wall on the right, firewood on the ground.

Regardless of the heat pump’s noise level, this is obviously the perfect setup for sound to bounce back and forth. There’s nothing visible in the picture that could absorb the noise, so in the end, all the sound will clearly be reflected straight toward the neighbor.