Q: heater on 1997 Ford E-350

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
does this vehicle have a heater controll valve
(1) Answer
(1) Comments
I just looked at all the diagrams for your system both Manual HVAC and Automatic Climate Control and both systems use a blend door and do not show a heater control valve.
What is your system not doing properly?