diff --git a/docs/AC_TESTED.md b/docs/AC_TESTED.md
index c07fdc8..2f7aa6c 100644
--- a/docs/AC_TESTED.md
+++ b/docs/AC_TESTED.md
@@ -11,6 +11,7 @@
 + Idea (models: ISR-12HR-SA7-DN1 ION)
 + IGC (models: RAK-07NH multysplit)
 + Loriot (models: LAC-09AS)
++ RCool (models: GRA12B0-KSZKLM641)
 + Roda (models: RS-AL09F)
 + Rovex (models: RS-07ALS1, RS-09ALS1, RS-12ALS1)
 + Royal Clima (models: CO-D 18HNI/CO-E 18HNI)