Index: MsgDefs.h
===================================================================
diff -u -re9364058a5553af3c5ff14c02ebf5c4d78f528f6 -rfeed7e3cacac675498971927387ccc09d0769a6b
--- MsgDefs.h	(.../MsgDefs.h)	(revision e9364058a5553af3c5ff14c02ebf5c4d78f528f6)
+++ MsgDefs.h	(.../MsgDefs.h)	(revision feed7e3cacac675498971927387ccc09d0769a6b)
@@ -159,6 +159,10 @@
     MSG_ID_DG_ACCEL_SET_CALIBRATION = 0xA01A,                           ///< DG accelerometer set calibration factors request
     MSG_ID_RO_PUMP_SET_PWM = 0xA01B,                                    ///< RO pump set PWM for open loop
     MSG_ID_DRAIN_PUMP_SET_DELTA_PRESSURE_OVERRIDE = 0xA01C,             ///< Drain pump set delta pressure override
+    MSG_ID_HEAT_DISINFECT_RECIRC_PATH_DURATION_MINS = 0xA01D,           ///< Heat disinfection recirculation path duration in minutes
+    MSG_ID_HEAT_DISINFECT_RSRVR1_TO_RSRVR2_DURATION_MINS = 0xA01E,      ///< Heat disinfection reservoir 1 to reservoir 2 duration in minutes
+    MSG_ID_HEAT_DISINFECT_RSRVR2_TO_RSRVR1_DURATION_MINS = 0xA01F,      ///< Heat disinfection reservoir 2 to reservoir 1 duration in minutes
+    MSG_ID_HEAT_DISINFECT_NO_OF_CYCLES_TO_RUN = 0xA020,                 ///< Heat disinfection number of cycles to run
 
     MSG_ID_HD_DEBUG_EVENT = 0xFFF1,                                     ///< HD debug event text to be logged in event log
     MSG_ID_DG_DEBUG_EVENT = 0xFFF2,                                     ///< DG debug event text to be logged in event log