Yearly Maintenance Of Fuel Cell Module - Viessmann Vitovalor PT2 E11T Installation And Service Instructions Manual

Commissioning, inspection, maintenance

5-yearly maintenance of fuel cell module

05. Press and hold SET for at least 3 s.
In STATE, "01" and "02" appear in succession.
The water can be drained when "02" flashes.
06. Place a shallow container of sufficient size (min.
5 l) below drain port
07. Undo the screw and remove right-hand cover
for ventilation.
08. Undo the screw in drain port
turns.
Replacing the distilled water cartridge, air filter, air filter B and CO sensor
Replace the distilled water cartridge, air filter, air filter
B and CO sensor every 5 years.
Resetting the service indicator on 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 had not yet been reached, for example.
In such a case, inform Viessmann Technical Services.
1. Turn on the ON/OFF switch on the fuel cell mod-
ule.
Filling with distilled water and re-starting the system
See page 66.
Terminating maintenance mode and activating energy manager
See page 68.
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. For replacing the sensor, see the supplied
installation instructions.
76
.
C
B
by approx. 1.5
C
(cont.)
09. Press SET.
The display changes from "02" to "03" in STATE.
10. When no more water runs out and "04" is flashing
in STATE, close apertures
11. Press SET.
"End" and "nP" will appear alternately in STATE.
12. Turn off the ON/OFF switch on the fuel cell mod-
ule.
These components are available as a maintenance
pack. For replacing the components, see the supplied
installation instructions.
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 indi-
cator has been reset.
and again.
B C