docs: for PR #3782

ACKNOWLEDGEMENTS.md

@@ -1074,3 +1074,4 @@ Further device support has been made with the assistance of users. Please consid
 - [den4ikmega](https://github.com/den4ikmega) for assisting with support for Digma DiSense G1 gas leak detector.
 - [StodgyWaif](https://github.com/StodgyWaif) for assisting with support for idoo Smart Bloom 8 hydroponic system.
 - [Veuchez](https://github.com/Veuchez) for assisting with support for Ryakka 7-in-1 pool monitor.
+- [banemonster](https://github.com/banemonster) for contributing support for Neopower Black Diamond all-in-one heat pump water heater.

DEVICES.md

@@ -176,6 +176,7 @@
 - Koi Duo HTW-TD-080KOID
 - Lohxa SR208C solar water heating controller
 - Modena ES-15-SKY water heater
+- Neopower Black Diamond all-in-one heat pump water heater
 - Nulite NL-B245 monobloc heat pump
 - Powerworld PW040, PWS58330, PWS58410 air+water heat pumps
 - Sanden GAU-A45HPD WiFi heat pump controller