4.6
Set-up
Setting the pressure
To set up the EBC20, do the following:
Step
Action...
1
• Follow the procedure on page 15 for changing the operating function into
pressure-controlled regulation of an
exodraft
supply air fan
(
operating function 3).
2
• Follow the procedure page 11 for setting the required pressure in the boiler
room. The procedure is the same as for setting a chimney draft.
The only difference is that the
symbol is shown in the display on
completion of step 1. Set the pressure in accordance with locally applicable
requirements.
4.7
Commissioning
Commissioning of the EBC20 must be carried out so that the supply air fan ensures correct pressure in the room.
Commissioning should be carried out by staff with the appropriate training, and with the authorisation to do so
according to local legislation.
Do as follows:
Step
Action...
1
Provisional setting of the pressure in the boiler room
• Press
OK
to go to Menu 1
• Press
OK
• Press
and
to adjust the value until the required pressure is shown in the
display
• Press
OK
to confirm and save the set point
• Press
RESET
to return to the operation screen
2
Start the boiler system at max. output
3
Check that the control system regulates to the set point
4
Check the safety monitoring
5
• If appropriate, simulate error conditions by switching off the supply air fan
• Burner is switched off (diode switches off) and the alarm diode illuminates
6
After completing the commissioning, check the start-up function by restarting the
system
For the set point values, please refer to the data for the boiler in question. However, ± 5 Pa can be considered typical.
3002878-EBC20-UK
34
• Pressure-controlled regulation
