Graco Reactor A-20 Operation page 23

Change Between Fahrenheit and Celsius
The temperature controller is factory-set to display in
Fahrenheit units.
To change to Celsius units:
1. Press and release Scroll button (A1) until Controller
displays "UNIT".
2. Press and release Down button (A3) once to display
"F".
3. Press and release Down button (A3) once again to
display "C".
4. Press and release Scroll button (A1) twice.
Controller will display Celsius units.
To change back to Fahrenheit units:
1. Press and release Scroll button (A1) until Controller
displays "UNIT".
2. Press and release Down button (A3) once to display
"C".
3. Press and release Down button (A3) once again to
display "F".
4. Press and release Scroll button (A1) twice.
Controller will display Fahrenheit units.
311511G
Initial Startup
23