Reducing The Heating Output (If Required); Checking Static Pressure And Supply Pressure - Viessmann Vitocrossal 200 Service Instructions For Contractors

Commissioning, inspection, maintenance

Reducing the heating output (if required)

The maximum heating output of the burner can be
reduced if required.
Status Service
R
S
Fig. 5

Checking static pressure and supply pressure

Static pressure
Rated heating output 87 kW
A
Fig. 6
1. Close the gas shut-off valve.
2. Undo the screw in test connector
remove.
3. Connect the pressure tester at test connector
14
1. Press S and hold for longer than 2 s.
2. Press
3. Press S. On the display, "6" appears under Status.
4. Press S. On the display, "1" appears under Status,
and the actual value for the maximum heating out-
put is shown in % under Service.
5. Press
output.
6. Press S to confirm. If applied successfully, "1" will
be shown on the display under Service, or "0" will
appear if it failed.
7. Press S to switch to the operating display.
8. Press R.
The system will be restarted.
Rated heating output 115 to 311 kW
Fig. 7
4. Open the gas shut-off valve.
, but do not 5. Check the static pressure: max. 60 mbar (6 kPa).
A
6. Record the actual value in the report (on
page 72).
A .
flashes.
until the display shows "6" under Service.
or to set the required maximum heating
A