Index: firmware/App/Monitors/Pressures.c
===================================================================
diff -u -r961784c895cb8f551a2623cd02dcbfe42d04b7c2 -r285b5d82539c96524c93703d52a66fff76fb64fc
--- firmware/App/Monitors/Pressures.c	(.../Pressures.c)	(revision 961784c895cb8f551a2623cd02dcbfe42d04b7c2)
+++ firmware/App/Monitors/Pressures.c	(.../Pressures.c)	(revision 285b5d82539c96524c93703d52a66fff76fb64fc)
@@ -747,10 +747,10 @@
 static void checkVenousPressureInRange( void )
 {
     F32 venPres = getFilteredVenousPressure();
-    OPN_CLS_STATE_T airTrapValveState = STATE_CLOSED; //getValveAirTrapStatus();
+    VALVE_3WAY_STATE_T airTrapValveState = VALVE_3WAY_COMMON_TO_CLOSED_STATE; //getValveAirTrapStatus();
 
     // track time since last air trap fill
-    if ( ( STATE_OPEN == airTrapValveState ) && ( TRUE == resetFillExemptPeriod ) )
+    if ( ( VALVE_3WAY_COMMON_TO_OPEN_STATE == airTrapValveState ) && ( TRUE == resetFillExemptPeriod ) )
     {
         venLowPresExemptAfterAirTrapFillTimerCtr = 0;
         resetFillExemptPeriod = FALSE;
@@ -801,7 +801,7 @@
                 }
             }
             // during reset period, if airTrapValve open, still alarm needs to be raised , hence persistence clearance should happen before or after reset period.
-            if ( ( airTrapValveState == STATE_OPEN ) &&
+            if ( ( airTrapValveState == VALVE_3WAY_COMMON_TO_OPEN_STATE ) &&
                  ( ( venLowPresExemptAfterAirTrapFillTimerCtr < exemptPeriod ) ||
                    ( venLowPresExemptAfterAirTrapFillTimerCtr > minimumMonitoringWindow ) ) )
             {