Index: firmware/App/DDCommon.h
===================================================================
diff -u -rc6c72086128954ac103052f05727a20d5e8e604e -rc90f3d61bde2a2b47d1048635be4dadf282e2195
--- firmware/App/DDCommon.h	(.../DDCommon.h)	(revision c6c72086128954ac103052f05727a20d5e8e604e)
+++ firmware/App/DDCommon.h	(.../DDCommon.h)	(revision c90f3d61bde2a2b47d1048635be4dadf282e2195)
@@ -51,8 +51,8 @@
 //Uncomment below to disable heaters debug message
 #define __HEATERS_DEBUG__         1
 
-//Uncomment below to disable revised heater model
-#define __REVISED_HEATER_MODEL__   1
+//Uncomment below if D1 placement is used for Temp control at dialyzer
+#define __USE_D1_TEMP_     1
 // comment below to disable bicarb multi level sensor for time based chamber F fill
 #define CONDUCTIVE_LEVEL_SENSOR_ENABLED  1