Setting The Gas Type - Viessmann MatriX-Disk burner Service Instructions For Contractors

Commissioning, inspection, maintenance

Setting the gas type

In the delivered condition, the boiler is preset for natu-
ral gas E and can be changed over to natural gas LL.
The setting can later be changed back to natural
gas E.
Fig. 3
Adjusting screw
A
1. Turn the adjusting screw on the main volume but-
terfly of the gas train fully towards "
2. Turn the adjusting screw in direction "+" as detailed
in the table below:
Rated heating output
800 kW
1000 kW
12
A
".
–
Natural gas LL
5 turns
8 turns
3. Start the burner.
4. Measure the CO content in the flue gas and
2
adjust: See page 16.
Natural gas E
4 turns
6 turns