Index: firmware/App/DDCommon.h
===================================================================
diff -u -r96a8221c98260150306117d81107ac28c426857e -r1eb7496d07548ac5fb33e1051542f42cd5ff529c
--- firmware/App/DDCommon.h	(.../DDCommon.h)	(revision 96a8221c98260150306117d81107ac28c426857e)
+++ firmware/App/DDCommon.h	(.../DDCommon.h)	(revision 1eb7496d07548ac5fb33e1051542f42cd5ff529c)
@@ -52,7 +52,7 @@
 #define __HEATERS_DEBUG__         1
 
 //Uncomment below if D1 placement is used for Temp control at dialyzer
-//#define __USE_D1_TEMP_     1
+#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