Checking Static Pressure And Supply Pressure - Viessmann VITOCROSSAL 200 Service Instructions Manual

Further details regarding the individual steps

Checking static pressure and supply pressure

A
Static pressure
1. Close the gas shut-off valve.
2. Undo the screw in test connector A,
but do not remove.
3. Connect the pressure tester at test
connector A.
4. Open the gas shut-off valve.
5. Check the static pressure (max.
60 mbar (6 kPa)).
6. Record the actual value in the report
(on page 86).
Commissioning, inspection, maintenance
8. Press button R G.
The system will be restarted.
Supply pressure
1. Start the burner.
Note
For commissioning, see page 18.
Switch the burner to maximum heat-
ing output. For this, activate the emis-
sions test switch at the control unit.
2. Check the supply (flow) pressure.
Use a suitably calibrated measuring
device with divisions of at least
0.1 mbar (0.01 kPa) to check the sup-
ply pressure.
Note
The supply pressure (flow pressure)
should be between 10 and 35 mbar
(1.0 and 3.5 kPa).
The gas pressure switch for checking
the supply pressure is factory set to
10 mbar (1 kPa). Never alter this set-
ting.
3. Record the actual value in the report
(on page 86).
4. Close the gas shut-off valve.
5. Remove the pressure tester and
close test connector A.
(cont.)
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