K2-level correction to “inaudible”
Are you an owner, an installer or a designer who is required to fill out the Cercle Bruit noise protection certificate for a heat pump heating system? Set the K2 value to “inaudible” (0 dB) for all CTA heat pumps listed here. Reason: “as per supplier specifications”.
Noise protection certificate for heat pumps
Here you can access the noise protection certificate for heat pumps
For the Cercle Bruit noise protection assessment, a K2-level correction was specified to assess the audibility of sound levels. The CTA heat pumps listed here do not have any tonality, so this value can be set to “inaudible” (0 dB).
| Item number | Type / designation |
| 122116 | Aeroheat CN 5a |
| 122117 | Aeroheat CN 7a |
| 124060 | Aeroheat CN 9a |
| 127913 | Aeroheat CI 1-16a |
| 129888 | Aeroheat CS 30a |
| 127514 | Aeroheat CI 8a |
| 127515 | Aeroheat CI 12a |
| 127299 | Aeroheat CI 12a |
| 127299 | Aeropro CP 45a |
| 127301 | Aeroheat CNI 9a |
| 132912 | Aeroheat CL 5a |
| 132913 | Aeroheat CL 8a |
| 133460* | Aeroheat CL 11a* |
| 133461* | Aeroheat CL 16a* |
| 127510 | Aeroheat CI 8is |
| 127511 | Aeroheat CI 12is |
| 127512 | Aeroheat CI 8i |
| 127513 | Aeroheat CI 12i |
| 127910 | Aeroheat CI 1-16i |
| 127911 | Aeroheat CI 1-16iL |
| 121349 | Aeroheat CS 1-14i |
| 121350 | Aeroheat CS 1-14i-L |
| 121351 | Aeroheat CS 1-18i |
| 121352 | Aeroheat CS 1-18i-L |
| 121353 | Aeroheat CS 1-25i-D |
| 121354 | Aeroheat CS 1-25i-L-D |
| 129885 | Aeroheat CS 30i |
| 129886 | Aeroheat CS 30i-L |
* Available soon