CITY 1.24 and 2.24 GN CITY 1.24 and 2.24 B/P

9.6 Adjusting the minimum pressure
Natural gas H and L, butane and propane.
Adjust the pressure at the burner downstream of the
gas assembly. The values to set are indicated in
chapter 7.
Measure the pressure at the boiler by connecting a
pressure gauge to pressure offtake 17, as follows:
1
2
3
4
5
6
Remove the screw retaining the plastic cover.
Remove the cover.
Verify that the “maximum flowrate” plastic nut is
screwed fully home.
Force operation of the boiler at the minimum output
setting by pressing the “clean” button E and
holding it down for 5 seconds (see section 4).
Adjust the minimum pressure with the brass nut.
- Turning the nut clockwise increases the
pressure.
- Turning the nut anti-clockwise
reduces the pressure.
After completing the adjustment, replace the
cap.
To revert to normal operation, press button E briefly.
Disconnect the pressure gauge.
Screw in the screw of the pressure offtake.
Check for gas leaks.
9.7 “Gas type” label
Affix the label indicating the type of gas for which the
boiler is equipped and set up.
23
2
8666N183
1
3
5
17
8666N104 A
8666N122