Omcan CE-CN-HP212M Mode D'emploi page 8

Installation
4. Remove the Orifice and Replace it. Use a 1/2" spanner. See the list of Orifice numbers for the appropriate
gas type.
Use for Natural
Gas
5. Converting the Gas Regulator.
a. Remove the converter cover from the regulator. Use a 7/8" spanner.
Use for Propane
8