Service Manual
Page 31
... 4948EL4002B PCU Kit contents: Orifice (Dia. = 1.613mm, for Propane Gas) Replace Label Instruction Sheet 30 Disassemble the pipe assembly. Initially, Natural Gas mode is on sale as a Service Part to authorized servicers only. Replace Natural Gas orifice with Propane Gas orifice.
... 4948EL4002B PCU Kit contents: Orifice (Dia. = 1.613mm, for Propane Gas) Replace Label Instruction Sheet 30 Disassemble the pipe assembly. Initially, Natural Gas mode is on sale as a Service Part to authorized servicers only. Replace Natural Gas orifice with Propane Gas orifice.