The following Idle and Main adjustment screw settings are recommended.
From fully closed position.

Apply minimum torque when closing adjustment screws to avoid damage to screw tip and seat ( 3lbs.ins / 34Ncm)

HW-10A
L=1 Turn 30 Minutes
H=30 Minutes

Opening Pressure = 0.65 bar
Closing Pressure = 0.55 bar

HW-11A
L=1 Turn 15 Minutes 
H=42 Minutes 

Opening Pressure = 0.65 bar
Closing Pressure = 0.55 bar

HW-12A
L=47 Minutes
H=1 Turn 3 Minutes

Opening Pressure = 0.65 bar
Closing Pressure = 0.55 bar