53
Replacing the distilled water cartridge, air filter, air filter B and CO sensor
Replace the distilled water cartridge, air filter, air fil-
ter B and CO sensor every 5 years.
These components are available as a maintenance
pack. Replacing the components: See the supplied
installation instructions.
Resetting the service indicator on the programming unit of the fuel cell module
Note
If
"bAD"
appears on the display, the service indicator
cannot be reset. This may be because the mainte-
nance interval has not yet been reached, for example.
In such a case, inform Viessmann Technical Service.
1.
Turn on the ON/OFF switch on the fuel cell mod-
ule.
2.
Use to select
"33"
.
3.
Simultaneously press
SET
and .
"34"
will appear on the display.
4.
Press and hold
SET
for at least 3 s.
"_CL"
will appear on the display.
The service indicator has been reset.
Filling with distilled water and re-starting the system
See page 49.
Terminating service mode and activating the energy manager
See page 50.
10-yearly maintenance of fuel cell module
10-yearly maintenance involves replacing the "flamma-
ble gases sensor" in addition to the 5-yearly mainte-
nance.
Replacing the sensor
Installation instructions provided
Commissioning, inspection, maintenance
5-yearly maintenance of fuel cell module
(cont.)
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