diff --git a/ontology/yaml/resources/HVAC/entity_types/FCU.yaml b/ontology/yaml/resources/HVAC/entity_types/FCU.yaml
index b2ac695c3..890e30cf5 100644
--- a/ontology/yaml/resources/HVAC/entity_types/FCU.yaml
+++ b/ontology/yaml/resources/HVAC/entity_types/FCU.yaml
@@ -1973,3 +1973,11 @@ FCU_DFVSC_RTM_CO2M_HWZTC_CHWZTC:
   - CO2M
   - HWZTC
   - CHWZTC
+
+FCU_DFMSC_CHWZTC:
+  guid: "2b7cde44-9553-405b-b186-0fdf126a9a8c"
+  description: "Fan coil unit with Chilled water valve monitoring on zone side (ZTC) and discharge fan multi-speed control."
+  implements:
+  - FCU
+  - DFMSC
+  - CHWZTC
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