Scanning Fault Messages; Emissions Test Mode - Viessmann Vitotronic 100 Operating Instructions Manual

Scanning

Scanning Fault Messages

Example:
Fault code shown: "50."

Emissions Test Mode

Switch the emissions test switch (see page 8) to
The display will then show the following:
14
If any faults have occurred in your heating system, the

symbol flashes on the display and the fault code is
shown. The red fault indicator also flashes (see page 7).
1. Notify your heating contractor of the fault code. This
enables the heating contractor to be better prepared
for the service call and may save additional travelling
costs.
2. Acknowledge the fault message with OK.
The symbol
Note:
If you have connected signalling equipment (e.g.
a buzzer) for fault messages, this is deactivated
when the fault message is acknowledged.
If the fault can only be fixed at a later date, the
fault message will reappear the following day.
Calling Up an Acknowledged Fault Message
Press OK for approx. 4 sec.
Note: If there are several fault messages, you can scan
these in sequence by pressing
S .
Emissions test mode for testing flue gas with boiler water
temperature raised briefly. This test mode should only
be activated by your flue gas inspector during the annual
inspection.
The following functions are activated:
The burner is switched on (the display shows symbol
Note: Burner start-up can be delayed, e.g. through fuel
oil preheating.
Pumps are started.
The adjustable high limit regulates the boiler water
temperature.
Ending Emissions Test Mode
Set the emissions test switch to
or
Close the cover (see page 6).
Vitotronic 100, GC1B Operating

no longer flashes.
a .
.
A ).