Index: firmware/App/Controllers/DGInterface.c
===================================================================
diff -u -r46a2d238d6cf88ff3122b99080789ebc6d83069d -r01391d9a66d4a2d6266366d0f838c08041d2d18c
--- firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 46a2d238d6cf88ff3122b99080789ebc6d83069d)
+++ firmware/App/Controllers/DGInterface.c	(.../DGInterface.c)	(revision 01391d9a66d4a2d6266366d0f838c08041d2d18c)
@@ -25,7 +25,7 @@
 #include "ModeInitPOST.h"
 #include "ModeTreatment.h"
 #include "ModeTreatmentParams.h"
-#include "OperationModes.h"
+#include "OperationModes.h"
 #include "PersistentAlarm.h"
 #include "SystemComm.h"
 #include "SystemCommMessages.h"
@@ -58,12 +58,12 @@
 
 // ********** private data **********
 
-// DG status
-static DG_OP_MODE_T dgCurrentOpMode;                                        ///< Current DG operation mode.
+// DG status
+static DG_OP_MODE_T dgCurrentOpMode;                                        ///< Current DG operation mode.
 static U32 dgSubMode;                                                       ///< Current state (sub-mode) of current DG operation mode.
-static BOOL dgStartCommandSent;                                             ///< Flag indicates command to start DG has been sent.
-static BOOL dgStarted;                                                      ///< Flag indicates whether we have commanded the DG to start or stop.
-static BOOL dgTrimmerHeaterOn;                                              ///< Flag indicates whether we have commanded the DG to start or stop the trimmer heater.
+static BOOL dgStartCommandSent;                                             ///< Flag indicates command to start DG has been sent.
+static BOOL dgStarted;                                                      ///< Flag indicates whether we have commanded the DG to start or stop.
+static BOOL dgTrimmerHeaterOn;                                              ///< Flag indicates whether we have commanded the DG to start or stop the trimmer heater.
 
 // DG sensor data
 static F32 dgDialysateTemp;                                                 ///< Dialysate temperature reported by the DG.
@@ -125,12 +125,12 @@
     U32 i, j;
 
     // NOTE: the active reservoir is set to reservoir 1 since DG will send active reservoir 1 as active on power up
-    dgStarted                       = FALSE;
-    dgTrimmerHeaterOn               = FALSE;
+    dgStarted                       = FALSE;
+    dgTrimmerHeaterOn               = FALSE;
     dgTrimmerTempSet                = 0.0F;
-    dgTrimmerTempCheckTimerCtr      = 0;
+    dgTrimmerTempCheckTimerCtr      = 0;
     dgActiveReservoirSet            = DG_RESERVOIR_2;
-    dgActiveReservoir               = DG_RESERVOIR_2;
+    dgActiveReservoir               = DG_RESERVOIR_2;
     dgDialysateTemp                 = 0.0F;
     dgCurrentOpMode                 = DG_MODE_INIT;
     dgSubMode                       = 0;
@@ -1020,19 +1020,18 @@
 
 /*********************************************************************//**
  * @brief
- * The cmdStartDGHeatDisinfect function sends a start heat disinfect
- * command message to the DG.
+ * The cmdStartDGHeatDisinfectActiveCool function sends a start heat disinfect
+ * with active cool command message to the DG.
  * @details Inputs: none
  * @details Outputs: start heat disinfect mode command sent to DG.
  * @return none
  *************************************************************************/
-void cmdStartDGHeatDisinfect( void )
+void cmdStartDGHeatDisinfectActiveCool( void )
 {
     BOOL start = TRUE;
 
-    dgCmdResp[ DG_CMD_START_HEAT_DISINFECT ].commandID = DG_CMD_NONE;
-
-    sendDGStartHeatDisinfectModeCommand( start );
+    dgCmdResp[ DG_CMD_START_HEAT_DISINFECT_ACTIVE_COOL ].commandID = DG_CMD_NONE;
+    sendDGStartHeatDisinfectActiveCoolModeCommand( start );
 }
 
 /*********************************************************************//**
@@ -1049,11 +1048,27 @@
 
     dgCmdResp[ DG_CMD_STOP_HEAT_DISINFECT ].commandID = DG_CMD_NONE;
 
-    sendDGStartHeatDisinfectModeCommand( start );
+    sendDGStartHeatDisinfectActiveCoolModeCommand( start );
 }
 
 /*********************************************************************//**
  * @brief
+ * The cmdStartDGHeatDisinfectPassiveCool function sends a start
+ * heat disinfect with passive cool command message to DG.
+ * @details Inputs: none
+ * @details Outputs: start heat disinfect with passive cool mode command sent to DG.
+ * @return none
+ *************************************************************************/
+void cmdStartDGHeatDisinfectPassiveCool( void )
+{
+    BOOL start = TRUE;
+
+    dgCmdResp[ DG_CMD_START_HEAT_DISINFECT_PASSIVE_COOL ].commandID = DG_CMD_NONE;
+    sendDGStartHeatDisinfectPassiveCoolModeCommand( start );
+}
+
+/*********************************************************************//**
+ * @brief
  * The cmdStartDGChemicalDisinfect function sends a start chemical disinfect
  * command message to the DG.
  * @details Inputs: none
@@ -1118,6 +1133,22 @@
 
 /*********************************************************************//**
  * @brief
+ * The cmdStartDGActiveCool function sends a start active cool command
+ * message to the DG.
+ * @details Inputs: none
+ * @details Outputs: start active cool mode command sent to DG.
+ * @return none
+ *************************************************************************/
+void cmdStartDGActiveCool( void )
+{
+    BOOL start = TRUE;
+
+    dgCmdResp[ DG_CMD_START_ACTIVE_COOL ].commandID = DG_CMD_NONE;
+    sendDGStopActiveCoolModeCommand( start );
+}
+
+/*********************************************************************//**
+ * @brief
  * The cmdStopDGActiveCool function sends a stop active cool command
  * message to the DG.
  * @details Inputs: none
@@ -1126,8 +1157,10 @@
  *************************************************************************/
 void cmdStopDGActiveCool( void )
 {
+    BOOL start = FALSE;
+
     dgCmdResp[ DG_CMD_STOP_ACTIVE_COOL ].commandID = DG_CMD_NONE;
-    sendDGStopActiveCoolModeCommand();
+    sendDGStopActiveCoolModeCommand( start );
 }
 
 /*********************************************************************//**