Index: firmware/App/Modes/Prime.c
===================================================================
diff -u -rdbcb78b3c621d80d99a6ebf37eda2c6b1b43c34a -r20fc2c5fab324965d22e248529069bdfb6d062ac
--- firmware/App/Modes/Prime.c	(.../Prime.c)	(revision dbcb78b3c621d80d99a6ebf37eda2c6b1b43c34a)
+++ firmware/App/Modes/Prime.c	(.../Prime.c)	(revision 20fc2c5fab324965d22e248529069bdfb6d062ac)
@@ -52,7 +52,7 @@
 #define DIALYZER_VOLUME_SCALE_FACTOR                        0.5F                                               ///< Half of the dialyzer total volume.
 
 #define NO_AIR_DETECTED_COUNT                               ( 20 * MS_PER_SECOND )                             ///< No air detected time period count.
-#define PURGE_AIR_TIME_OUT_COUNT                            ( 60 * MS_PER_SECOND )                             ///< Time period count for purge air time out.
+#define PURGE_AIR_TIME_OUT_COUNT                            ( 120 * MS_PER_SECOND )                             ///< Time period count for purge air time out.
 #define LOAD_CELL_STEADY_VOLUME_SAMPLING_TIME               (  1 * MS_PER_SECOND )                             ///< Time load cell reading steady state detection sampling time in seconds.
 #define PRIME_DIALYSATE_BYPASS_TIME_LIMIT                   ( 15 * MS_PER_SECOND )                             ///< Time limit for priming dialysate bypass circuit.
 #define STEADY_VOLUME_COUNT_SEC                             ( 10000 / LOAD_CELL_STEADY_VOLUME_SAMPLING_TIME )  ///< Counter must be greater than 10 seconds before steady volume is true.
@@ -86,7 +86,8 @@
       { 100, 200 },                                             // DIALYZER_TYPE_BBRAUN_PRO_16H
       { 120, 257 },                                             // DIALYZER_TYPE_BBRAUN_PRO_19H
       {  87, 233 },                                             // DIALYZER_TYPE_FRESENIUS_OPTIFLUX_F160NRE
-      { 102, 280 } };                                           // DIALYZER_TYPE_FRESENIUS_OPTIFLUX_F180NRE
+      { 102, 280 },                                             // DIALYZER_TYPE_FRESENIUS_OPTIFLUX_F180NRE
+      { 113, 348 } };                                           // DIALYZER_TYPE_FRESENIUS_OPTIFLUX_F200NRE
 
 static U32 primeDialysateDialyzerTimeLimit;                     ///< Time limit in msec for priming dialysate dialyzer path.
 static U32 primeSalineDialyzerTimeLimit;                        ///< Time limit in msec for priming saline dialyzer path.