Robertshaw 9520 User Manual page 5

11. Connect wires to terminal strip. Refer to wiring diagrams on other
side of this sheet. Make sure wire connections are secure.
12. Put the °F/°C switch to either °F for Fahrenheit display
or °C for Celsius display readout.
13. Replace cover onto thermostat by snapping into place.
14. Turn on power to system . Test thermostat as described
in the following section.
F/ C Switch
Batteries NOT Required.
figure 4
5