Index: firmware/App/Controllers/AirTrap.c
===================================================================
diff -u -ra25d5c24569e3d77487a75498a4e10dd83ada9c4 -ra4774f170562e33a48238cb3e3137bdd06ac374a
--- firmware/App/Controllers/AirTrap.c	(.../AirTrap.c)	(revision a25d5c24569e3d77487a75498a4e10dd83ada9c4)
+++ firmware/App/Controllers/AirTrap.c	(.../AirTrap.c)	(revision a4774f170562e33a48238cb3e3137bdd06ac374a)
@@ -55,9 +55,8 @@
 #define AIR_PUMP_MOTOR_LOWER_PWM              23.5F                                               ///< Power level setting (PWM) in percentage for H12 air pump to lower the level of the air trap.
 #define AIR_PUMP_MOTOR_MIN_PWM_OVERRIDE       60                                                  ///< Air pump motor minimum PWM to override.
 #define AIR_PUMP_MOTOR_MAX_PWM_OVERRIDE       250                                                 ///< Air pump motor maximum PWM to override.
-#define AIR_PUMP_MOTOR_MAX_PWM                255                                                 ///< Air pump motor maximum PWM.
 /// LDT-2384 test formula for air trap lower events for air pump duty cycle based on venous pressure
-/// air pump duty cycle (% PWM) = 0.0002x^2 + 0.0925x + 25.467, where x is long filtered H14 venous pressure in mmHg before air trap lower event
+/// air pump duty cycle (% PWM) = 0.0002x^2 + 0.0925x + 25.467, where x is long filtered (60 sec) H14 venous pressure in mmHg before air trap lower event
 #define QUADRATIC_COEFFICIENT                 0.0002F                                             ///< X2 quadratic coefficient
 #define LINEAR_COEFFICIENT                    0.0925F                                             ///< X linear coefficient
 #define CONSTANT_TERM                         25.467F                                             ///< Constant term
@@ -344,9 +343,10 @@
 F32 getCalculatedAirPumpDutyCycle( void )
 {
     F32 h14Pressure = getLongFilteredVenousPressure();
-    // the currently set P12 duty cycle (raw PWM) must be 0.0005x^2 + 0.2313x + 63.667, where x = H14 venous pressure in mmHg before air pump lower event
+    /// LDT-2384 test formula for air trap lower events for air pump duty cycle based on venous pressure
+    /// air pump duty cycle (% PWM) = 0.0002x^2 + 0.0925x + 25.467, where x is long filtered (60 sec) H14 venous pressure in mmHg before air trap lower event
     F32 dutyCycle = ( ( QUADRATIC_COEFFICIENT  * ( h14Pressure * h14Pressure ) ) - ( LINEAR_COEFFICIENT * ( h14Pressure ) ) ) + CONSTANT_TERM;
-    dutyCycle = ( dutyCycle / AIR_PUMP_MOTOR_MAX_PWM ) * FRACTION_TO_PERCENT_FACTOR;
+    dutyCycle = ( dutyCycle / (F32)AIR_PUMP_MAX_PWM ) * FRACTION_TO_PERCENT_FACTOR;
 
     return dutyCycle;
 }