Index: firmware/App/Modes/ModeHeatDisinfect.c
===================================================================
diff -u -r3850bef541c43c1fb81663eb7d1ca6c98e933627 -r5026ed04bc2977e2a6d8c854b1e356cbfb2febea
--- firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision 3850bef541c43c1fb81663eb7d1ca6c98e933627)
+++ firmware/App/Modes/ModeHeatDisinfect.c	(.../ModeHeatDisinfect.c)	(revision 5026ed04bc2977e2a6d8c854b1e356cbfb2febea)
@@ -188,6 +188,10 @@
 static BOOL isRODisinfectDone;                                                                                 ///< Heat disinfect is RO disinfect done flag.
 
 #ifndef _RELEASE_
+/* Nelson Labs is in charge of testing the efficacy of the disinfects (heat and chem). The codes that contain the name Nelson are used to
+ * support the special conditions that are needed to be created to test the disinfects. The support codes are not compiled in a release
+ * build.
+ */
 static NELSON_SUPPORT_T nelsonSupport;                                                                         ///< Nelson support.
 #endif