Burner Adjustment - Lattner Boiler Company Alkon 90 Installation And Servicing Manual

3.26 -

BURNER ADJUSTMENT

WARNING!
All the instructions indicated below are for the
exclusive use of qualified LATTNER service
technicians or installers.
All the boilers are supplied already calibrated
and tested. If it is necessary to change the
calibration due to gas conversion or adaptation
to the mains supply system, the gas valve must
be re-calibrated.
A) Max output adjustment
- Connect a suitable C0
point in the flue inlet/outlet terminal.
- Pressing simultaneously the keys + (increase) and –
(decrease) for at least 3 seconds the boiler will operate
in the CH mode at the maximum output (led 1
illuminated).
- Check that the C0
indicated in the table "Burner pressures"
- If necessary correct the value by turning the adjustment
screw "A" in a CLOCKWISE direction to decrease the
value and in an ANTICLOCKWISE direction in order to
increase it.
1
VIOLET
YELLOW
gas analyser to the sampling
2
values are within the values
2
Instructions for the installer
B) Min output adjustment
- By pressing the key "- decrease" again the boiler will
operate at the minimum output (led 1 blinking).
VIOLET
YELLOW
-To disenable the CHIMNEY SWEEPER MODE
press the keys + (increase) and – (decrease)
simultaneously (led 1 off).
VIOLET
YELLOW
LIGHT
- Check that the C0
BLUE
in the table "Burner pressures"
BLUE
MAXIMUM OUTPUT
ADJUSTMENT SCREW (A)
1
1
values are within the values indicated
2
LIGHT
BLUE
BLUE
LIGHT
BLUE
BLUE
37