Viessmann Vitodens 050-W Installation And Service Instructions Manual page 30

Commissioning, inspection, maintenance
Commissioning the system
Commissioning assistant
sequence
"C.7"
Operating mode
"C.8"
System scheme (depend-
ing on appliance type, not
all schemes possible)
"C.9"
External heating circuit
hook-up
The system carries out a restart.
Automatic flue gas temperature sensor check
The display shows: "Er"
If the flue gas temperature sensor is not positioned
correctly, fault message 416 appears.
For further details regarding the flue gas temperature
sensor test, see "Repairs".
If fault message 416 appears, reposition the flue gas
temperature sensor in the flue gas connection. Check
for leaks on the flue gas side.
Switching WiFi on/off
The appliance is equipped with an integrated
(2.4 GHz) WiFi communication module with extended
type plate.
This WiFi communication module supports commis-
sioning, maintenance and servicing with "ViGuide"
online or the "ViGuide App" as well as operation via
the "ViCare app".
Three labels with the access details required for estab-
lishing the connection are attached at the factory to the
front of the programming unit. The access code is
marked with a "WiFi symbol".
30
(cont.)
Explanations and references
4 - Weather-compensated
13 - Constant operation with optional room thermostat
14 - OpenTherm
15 - Individual room control
16 - Individual room control with modulation
Note
Operating modes 15 and 16 can only be set via the software tool.
If operating mode 15 or 16 is set, low power radio cannot be switched off.
1 - 1 direct heating circuit without low loss header
3 - 1 direct heating circuit without low loss header with DHW cylinder
Note
Only for weather-compensated operation.
0 - No external heating circuit hook-up
1 - External heating circuit hook-up HC1
After the final setting has been completed, "En" appears on the display. Con-
firm with "OK".
When commissioning starts, the flue gas temperature sensor test begins and
"Fs" is shown on the display.
Note
The burner remains locked out until the test has been
passed.
When the fault has been remedied, turn the ON/OFF
switch off and back on again.