Room Thermostat; Normal Operation - Worcester Greenstar Comfort I RF Installation And Operating Instructions Manual

Room thermostat

6 Room thermostat
After 30 seconds of inactivity the display reverts
to the showing the current room temperature.
6.1

Normal operation

Under normal operation the display shows the current room
temperature in centigrade.
1
Fig. 15 Normal screen
1. Current room temperature
2. Battery condition indicator
3. Burner ON indicator
Press the knob briefly to display the required room
temperature.
Fig. 16
16
Turn the knob anti-clockwise to decrease the temperature or
clockwise to increase. The new temperature setting will flash
for three seconds.
2
3
Fig. 17
If the Programmer/Receiver is in an OFF period, the Room
thermostat will display the new temperature setting flashing for
three seconds and then OFF flashing for three seconds.
Low battery
The battery symbol indicates the batteries require replacing
within two months refer to section 9.1
Burner ON indicator
The symbol is shown when the boiler is firing (there may be up
to a six minute delay between the boiler firing and the symbol
being displayed).
Low RF signal strength
The A21 fault code indicates no RF signal, refer to section 6.7
for the signal strength indication on the Room Thermostat.
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The A21 fault code will be displayed at initial
switch on until the two units have established
an RF communication link
Comfort I – 6720810964 (2014/07)
6720810964-26.1Wo