Display in operating mode, gas firing with electronic modulation and gas firing
with pneumatic modulation.
If setup mode is activated, the "P" symbol also appears in the start phase.
Display in operating mode
Gas firing, pneumatic modulation
Start after request for heat.
Internal tests such as ROM test, CPU test,
RAM test, etc.
Check servo drive for air and go to refe-
rence point.
Check servo drive for gas and go to refe-
rence point.
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