Setting The Time And Date - Only For Weather-Compensated Control Units; Note On Automatic Testing Of The Flue Gas Temperature Sensor - Viessmann Vitodens 222-F B2TA Installation And Service Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps
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Setting the time and date - only for weather-compensated control
units
The time and date need to be reset dur-
ing commissioning or after a prolonged
time out of use.
Extended menu:
1. å
2. "Settings"

Note on automatic testing of the flue gas temperature sensor

Weather-compensated control unit
As soon as the time and date have been
set, the control unit automatically checks
the function of the flue gas temperature
sensor.
The display shows: "Flue gas temp sen-
sor test" and "Active".
Note
If the flue gas temperature sensor is in-
correctly positioned, commissioning will
be cancelled and fault message A3
shown (see page 144).
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3. "Time/Date"
4. Set current time and date.
Constant temperature control unit
Immediately after being switched on, the
control unit automatically checks the func-
tion of the flue gas temperature sensor.
The display shows: "A".
Note
If the flue gas temperature sensor is in-
correctly positioned, commissioning will
be cancelled and fault message A3
shown (see page 144).
(cont.)