Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r1da5fe992c0b461115912698afc9cc7039ad2df3 -rc7500aecdf23c85b6eb71e6ffbe2596e6a530eee
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 1da5fe992c0b461115912698afc9cc7039ad2df3)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision c7500aecdf23c85b6eb71e6ffbe2596e6a530eee)
@@ -5127,4 +5127,35 @@
     sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
 }
 
+/*********************************************************************//**
+ * @brief
+ * The handleTestChemDisinfectAcidOverride function handles a request
+ * to override the CD2 moving average in Chem disinfection.
+ * @details Inputs: none
+ * @details Outputs: message handled
+ * @param message a pointer to the message to handle
+ * @return none
+ *************************************************************************/
+void handleTestChemDisinfectAcidOverride( MESSAGE_T * message )
+{
+    TEST_OVERRIDE_PAYLOAD_T payload;
+    BOOL result = FALSE;
+
+    // verify payload length
+    if ( sizeof( TEST_OVERRIDE_PAYLOAD_T ) == message->hdr.payloadLen )
+    {
+        memcpy( &payload, message->payload, sizeof( TEST_OVERRIDE_PAYLOAD_T ) );
+        if ( FALSE == payload.reset )
+        {
+            result = testSetChemDisinfectionCD2AvgOverride( payload.state.f32 );
+        }
+        else
+        {
+            result = testResetChemDisinfectionCD2AvgOverride();
+        }
+    }
+
+    // respond to request
+    sendTestAckResponseMsg( (MSG_ID_T)message->hdr.msgID, result );
+}
 /**@}*/