Index: PIControllers.h
===================================================================
diff -u -r53385f8d1d2a7ed4108d7973490455ebb0567a80 -r26a59e8a374cb4534099dae8b56e0b08f09b0c59
--- PIControllers.h	(.../PIControllers.h)	(revision 53385f8d1d2a7ed4108d7973490455ebb0567a80)
+++ PIControllers.h	(.../PIControllers.h)	(revision 26a59e8a374cb4534099dae8b56e0b08f09b0c59)
@@ -7,8 +7,8 @@
 *
 * @file    PIControllers.h
 *
-* @author  (last)      Sameer Kalliadan Poyil
-* @date    (last)      16-Apr-2026
+* @author  (last)      Vinayakam Mani
+* @date    (last)      06-May-2026
 *
 * @author  (original)  Vinayakam Mani
 * @date    (original)  07-Oct-2024
@@ -46,6 +46,7 @@
     PI_CONTROLLER_ID_D48_PUMP,                      ///< Spent dialysate Pump controller
     PI_CONTROLLER_ID_D5_HEAT,                       ///< Primary heater controller
     PI_CONTROLLER_ID_D5_HEAT_OUTER_LOOP,            ///< Primary heater controller outer loop
+    PI_CONTROLLER_ID_D5_HEAT_OUTER_HIGHER_QD,       ///< Primary heater controller outer loop for higher flow rates
     PI_CONTROLLER_ID_D45_HEAT,                      ///< Trimmer heater controller
     PI_CONTROLLER_ID_D45_HEAT_HIGHER_QD,            ///< Trimmer heater controller for higher flow rates
     PI_CONTROLLER_ID_RO_PUMP_FLOW,                  ///< RO Pump controller to flow