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Operation
Comfort I– 6720810964 (2017/02)
4Operation
The Programmer/Receiver is supplied with factory set default
ON and OFF times, for central heating (CH) and hot water
(HW), that are shown in the table below. These time settings
can be reset according to the homeowner’s requirements via
the User menu function on the Programmer/Receiver,
section 5.1. The times can be reset to the factory setting via
the User menu.
The Room thermostat displays the current room temperature
and is linked by an RF signal to the Programmer/Receiver.
4.1 Programmer/Receiver
During normal operation the display shows:
the operational modes of the central heating and hot water,
either ON, OFF, AUTO, ONCE or ADV, press the Central
heating or DHW select button to choose either:
ON = heating or hot water is permanently on
OFF = heating or hot water is permanently off
AUTO = programmed times for heating and hot water
ONCE = heating or hot water is on from the first
programmed on time to the last programmed off time
In the Auto mode, press the Advance button once to move
to the next on or off time, press for a second time to return
to the current programme
•the current time and day,
am or pm for the 12 hour time format
Graphical indication of the current time program, the black
markers indicate half hour time periods. The flashing black
marker indicates the current time position in the
programmed sequence, either in the ON or OFF period.
Fig. 10 Display elements
1. Central heating operational status
2. Current day
3. HW operational status
4. Current time
5. Graphical indication of the current time program
6. 24 hour time scale
7. Frost protection - displayed when boiler is set to minimum
8. Burner ON - display when boiler is heating
9. am or pm display - not displayed in 24 hour clock format
Pressing the knob once and releasing during an OFF period will
display the current temperature setting and when the next ON
time is scheduled. The example shown below indicates that the
Central heating is OFF and will not be ON again “until 16:30” (or
“until 4:30pm” in 12 hour format) and if the temperature drops
below 5°C the heating will come on. This setting is for frost
protection and the frost protection symbol will be displayed.
Fig. 11 Heating off
Pressing the knob once and releasing during an ON time will
display the current temperature setting and when the next OFF
time is scheduled. The example shown below indicates that the
Central heating is ON and will not be OFF again “until 22:30” (or
“until 10:30pm” in 12 hour format) and the temperature has
been set to 20°C.
Fig. 12 Heating on
06:30 08:30 16:30 22:30
CH ON OFF ON OFF
HW ON OFF ON OFF
6720810964-04.1Wo
23
4
5
1
pmam
6
9
8
7
6720810964-05.1Wo
pmam
6720810964-06.1Wo
pmam
9


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