Index: firmware/App/Controllers/BalancingChamber.c
===================================================================
diff -u -r7f97b34440ff591f75dbedb9ae3284ced36e73b7 -rf554e391302359aa2b252c6c13603d831c11cb77
--- firmware/App/Controllers/BalancingChamber.c	(.../BalancingChamber.c)	(revision 7f97b34440ff591f75dbedb9ae3284ced36e73b7)
+++ firmware/App/Controllers/BalancingChamber.c	(.../BalancingChamber.c)	(revision f554e391302359aa2b252c6c13603d831c11cb77)
@@ -7,8 +7,8 @@
 *
 * @file    BalancingChamber.c
 *
-* @author  (last)      Sameer Kalliadan Poyil
-* @date    (last)      10-Feb-2026
+* @author  (last)      Vinayakam Mani
+* @date    (last)      11-Feb-2026
 *
 * @author  (original)  Vinayakam Mani
 * @date    (original)  28-Jan-2025
@@ -526,8 +526,16 @@
     freshDialPressure     = getFilteredPressure( D18_PRES );
     spentDialPressure     = getFilteredPressure( D51_PRES );
 
-    //Set Trimmer heater Target temp every BC cycle to catch up fresh dialysate temp
-    setHeaterTargetTemperature( D45_HEAT, getD4AverageTemperature() );
+    if ( getTestConfigStatus( TEST_CONFIG_DD_FP_ENABLE_BETA_1_0_HW ) == TRUE )
+    {
+        //Set Trimmer heater Target temp every BC cycle to catch up fresh dialysate temp
+        setHeaterTargetTemperature( D45_HEAT, getD4AverageTemperature() );
+    }
+    else
+    {
+        //Set Trimmer heater Target temp every BC cycle to catch up fresh dialysate temp
+        setHeaterTargetTemperature( D45_HEAT, getD99AverageTemperature() );
+    }
 
     BOOL isFreshDialysatePressureInRange = ( freshDialPressure >= FRESH_DIAL_PRESSURE_MIN_PSIG ) && ( freshDialPressure <= FRESH_DIAL_PRESSURE_MAX_PSIG );
     BOOL isSpentDialysatePressureInRange = ( spentDialPressure >= SPENT_DIAL_PRESSURE_MIN_PSIG ) && ( spentDialPressure <= SPENT_DIAL_PRESSURE_MAX_PSIG );
@@ -740,8 +748,16 @@
     freshDialPressure     = getFilteredPressure( D18_PRES );
     spentDialPressure     = getFilteredPressure( D51_PRES );
 
-    //Set Trimmer heater Target temp every BC cycle to catch up fresh dialysate temp
-    setHeaterTargetTemperature( D45_HEAT, getD4AverageTemperature() );
+    if ( getTestConfigStatus( TEST_CONFIG_DD_FP_ENABLE_BETA_1_0_HW ) == TRUE )
+    {
+        //Set Trimmer heater Target temp every BC cycle to catch up fresh dialysate temp
+        setHeaterTargetTemperature( D45_HEAT, getD4AverageTemperature() );
+    }
+    else
+    {
+        //Set Trimmer heater Target temp every BC cycle to catch up fresh dialysate temp
+        setHeaterTargetTemperature( D45_HEAT, getD99AverageTemperature() );
+    }
 
     BOOL isFreshDialysatePressureInRange = ( freshDialPressure >= FRESH_DIAL_PRESSURE_MIN_PSIG ) && ( freshDialPressure <= FRESH_DIAL_PRESSURE_MAX_PSIG );
     BOOL isSpentDialysatePressureInRange = ( spentDialPressure >= SPENT_DIAL_PRESSURE_MIN_PSIG ) && ( spentDialPressure <= SPENT_DIAL_PRESSURE_MAX_PSIG );