docs: for PR #4377

Issue #4285

ACKNOWLEDGEMENTS.md

@@ -1235,3 +1235,4 @@ Further device support has been made with the assistance of users. Please consid
 - [elsterglanz](https://github.com/elsterglanz) for assisting with support for a new variant of Beok TOL47 thermostat.
 - [ps-jay](https://github.com/ps-jay) for contributing improvements to Henden Essential heat pump.
 - [burned89](https://github.com/burned89) for contributing support for Eeese Thor dehumidifier.
+- [cb2206](https://github.com/cb2206) for contributing support for Chiltrix CX50 heat pump.

DEVICES.md

@@ -184,6 +184,7 @@ devices # Supported
 - Aquaviva AVH15S combo air-water heat pump
 - Arçelik AHPH-MM series combo air-water heat pump
 - Axen KS-100W/EN8BP combo heat pump (rebranded as Arielli)
+- Chiltrix CX50 combo heat pump
 - Deakon EVI DC inverter heat pump
 - EMS Thermal 200L domestic heat pump hot water system
 - Ferroli Titano Twin water heater