Index: firmware/App/Modes/ModeFill.c
===================================================================
diff -u -r1d4766a9ba6b087a7c86e776634707d8a1bfceaf -r2f26e48d0ed5cc3aad6d4b1840005e60c944074d
--- firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 1d4766a9ba6b087a7c86e776634707d8a1bfceaf)
+++ firmware/App/Modes/ModeFill.c	(.../ModeFill.c)	(revision 2f26e48d0ed5cc3aad6d4b1840005e60c944074d)
@@ -583,7 +583,7 @@
         // to dialysate production directly
         if ( TRUE == isThisTheFirstFill() )
         {
-            sendRORejectionRatioRequestToHD();
+            sendMaxRORejectionRatioRequestToHD();
             result = DG_FILL_MODE_STATE_PRIME_CONCENTRATE_LINES;
 
             if ( TRUE == getTestConfigStatus( TEST_CONFIG_EXPEDITE_PRE_TREATMENT ) )
Index: firmware/App/Services/SystemCommMessages.c
===================================================================
diff -u -r1d4766a9ba6b087a7c86e776634707d8a1bfceaf -r2f26e48d0ed5cc3aad6d4b1840005e60c944074d
--- firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 1d4766a9ba6b087a7c86e776634707d8a1bfceaf)
+++ firmware/App/Services/SystemCommMessages.c	(.../SystemCommMessages.c)	(revision 2f26e48d0ed5cc3aad6d4b1840005e60c944074d)
@@ -1989,13 +1989,13 @@
 
 /*********************************************************************//**
  * @brief
- * The sendRORejectionRatioRequestToHD function handles sending the RO
+ * The sendMaxRORejectionRatioRequestToHD function handles sending the max RO
  * rejection ratio request to HD
  * @details Inputs: none
  * @details Outputs: none
  * @return none
  *************************************************************************/
-void sendRORejectionRatioRequestToHD( void )
+void sendMaxRORejectionRatioRequestToHD( void )
 {
     MESSAGE_T msg;
 
Index: firmware/App/Services/SystemCommMessages.h
===================================================================
diff -u -r1d4766a9ba6b087a7c86e776634707d8a1bfceaf -r2f26e48d0ed5cc3aad6d4b1840005e60c944074d
--- firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 1d4766a9ba6b087a7c86e776634707d8a1bfceaf)
+++ firmware/App/Services/SystemCommMessages.h	(.../SystemCommMessages.h)	(revision 2f26e48d0ed5cc3aad6d4b1840005e60c944074d)
@@ -201,8 +201,8 @@
 // MSG_ID_DG_START_STOP_NOCTURNAL_HEAT_DISINFECT
 void handleStartStopDGPassiveCoolHeatDisifnect( MESSAGE_T* message );
 
-// MSG_ID_DG_RO_REJ_RATIO_FROM_HD_INSTIT_RECORD_REQUEST
-void sendRORejectionRatioRequestToHD( void );
+// MSG_ID_DG_MAX_RO_REJ_RATIO_FROM_HD_INSTIT_RECORD_REQUEST
+void sendMaxRORejectionRatioRequestToHD( void );
 
 // MSG_ID_HD_MAX_RO_REJ_RATIO_FROM_HD_INSTIT_RECORD_RESPONSE
 void handleMaxRORejectionResponseFromHDInstitRecord( MESSAGE_T* message );