Product Information
Comfort+ I RF/Stat RF – 6720886119 (2018/07)
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2.2 User interface
2.2.1 Control unit
Fig. 1 Control elements
[1] Display
[2] Battery status indicator
[3] Burner ON Indicator
[4] Rotary push button knob: select (turn) and confirm
(press)
[5] Current room temperature
2.2.2 Key
The key must be used in conjunction with the control unit.
The key is installed in the heat source.
[1] Button on key
[2] LED on key
Description of the displays Example
Current room temperature (standard display)
Desired room temperature:
▶ Press selector to briefly show the desired
room temperature (flashing).
Battery status indicator:
Weak battery
▶ Replace batteries within 60 days.
Boiler is producing heat, e.g. the burner is running.
Setting the desired room temperature Result
▶ Turn the selector to select the desired room
temperature.
▶ Press the selector to confirm the setting.
Switching off the heating Result
▶ Reduce the desired room temperature, until
OFF appears. When the heating is switched
off, frost protection for the room is also
switched off. Frost protection of the heat
source remains active.
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°C
°F
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°C
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°F
Description of the LED displays Example
Red flashing LED:
Fault, e.g. no EMS connection:
▶ Install the key again, restore the last
functioning status.
Flashing green:
No fault, initialisation process is running.
Constant red:
Temporary fault:
▶ Wait for normal operating condition to be
resumed.
Constant yellow LED:
No fault, time and date not available:
▶ Set the time and date on the appliance.
Constant green LED:
No fault, normal operating condition.
LED Off:
No fault, power-saving mode or appliance
switched off.
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