Nomenclature for RS Series

2 = Non-Programmable, Economy Series

3 = 5-2 Day Programmable, Economy Series

4 = Non-Programmable, Value Series

5 = 5-2 Day Programmable, Value Series

6 = 7-Day Programmable, Value Series

Application

0 = Standard Thermostat

Number of Cooling Stages

Number of Heating Stages

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