Viessmann Vitocal 350-A Installation And Service Instructions Manual page 123

Further details regarding the individual steps
Function
3. Access rights
4. Programming
5. Sensor temperatures
6. Signal inputs
7. Relay (outputs)
8. Mixer
9. Commissioning
10. The system starts
Commissioning, inspection, maintenance
Explanation
Log on as "Contractor" by entering code
"5243" (see page 168)
Note
The "Contractor" level remains active either
until key "Standard display" F is pressed or if
no input is detected for 30 min.
System configuration (system scheme and
components)
Checking and matching sensor temperatures
Checking the signals of connected compo-
nents
Checking the connected functions and external
components with the relay test
Note
Carry out the relay test for every function and
every externally connected component
Checking the connected mixers (rotational
direction) or diverter valves
Setting all required parameters, venting the sys-
tem and checking the function of the compo-
nents (see page 126)
Note
Messages are displayed by manually controlling
some components during commissioning.
These do not indicate appliance faults.
(cont.)
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