Checking The Static Pressure And Supply Pressure - Viessmann VITOCROSSAL CRU 800 kW Service Instructions Manual

Reducing the heating output (if required)

Checking the static pressure and supply pressure

Static pressure
A
Fig. 7
Test connector
A
1. Close the gas shut-off valve.
2. Undo the screw in test connector
remove.
3. Connect the pressure tester at test connector
Supply pressure
1. Start the burner with emissions test mode enabled
(control unit menu).
Vitotronic operating instructions
8. Press R.
The system will be restarted.
4. Open the gas shut-off valve.
, but do not 5. Check the static pressure: Max. 100 mbar
A
(10 kPa).
. 6. Record the actual value in the report (on
A
page 61).
Commissioning, inspection, maintenance
(cont.)
15