Checking The Fan Pressure And Aic Pressure - Viessmann MatriX-Disk burner Service Instructions For Contractors

Checking the ionisation current
11. repeatedly until "0" is shown under "Service".

Checking the fan pressure and AIC pressure

Fig. 10
Fig. 11
(cont.)
12. S to change to the operating display.
1. For the fan pressure, connect the pressure gauge
2. For the AIC pressure, connect the pressure gauge
A
Burner type
MDI 800
MDI 1000
If the fan pressure exceeds the values in the table with
a clean filter, clean the burner gauze assembly. See
page 24.
If the AIC pressure exceeds the specified value, clean
the air filter.
B B
Commissioning, inspection, maintenance
to measuring point with a tee.
A
Measure the fan pressure during full load operation
at the upper heating output.
to measuring point , either directly or with a tee.
B
Measure the AIC pressure (negative pressure).
Fan pressure
mbar
mbar
AIC pressure
max. max.
11 8
19 10
19