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Model: Slimline-RF V3
LCD Display
1. RF Icon - Flashes when the thermostat communicates with the receiver.
2. Day Indicator - Displays the current day.
3. Frost Icon - Displayed when the thermostat is in frost protection mode.
4. Flame Icon - Displayed when the thermostat is calling for heat, flashes when the
Optimum Start function is in operation.
5. Temperature Hold - Displayed when manually overriding the program,
“HOLD FOR” and the time period are displayed.
6. Room Temp - Indicates the current temperature sensor mode.
7. Set - Displayed when changes are made to programs or temperature set points.
8. Holiday Indicator - Displayed when the programmer is in holiday mode.
9. Current Temp - Indicates the current sensor temperature.
10. Program Cycle Indicator - Displayed during programming only to show which
period is being altered.
11. Battery Level - Indicates when the batteries require replacement.
12. Keypad Lock Indicator - Displayed when the keypad is locked.
13. Timer Status – Displays the current state of the timed output.
14. Units of Temperature - Degrees Celsius or Fahrenheit.
15. Clock - Digital clock display in 24h format.