Dungs MPA22 - Operating Mode Flowchart: Electronic Gas Firing; Initial Startup and Internal Tests

Printed in Germany / M-MT-BOS
• Edition 11.99 • # 231 763
66 … 112
After line-voltage interruption or if a
request for heat was pending in
standby mode.
Internal tests such as ROM test, CPU
test, RAM test, etc.
Check servo drive for air and go to
reference point.
Check servo drive for gas and go to
reference point.
(not applicable for gas firing, pneu-
matic modulation)
P
S
i
G
L/A
h
l,m
3
P
S
i
G
L/A
h
l,m
3
P
S
i
G
L/A
h
l,m
3
1
Restart
Display in operating mode
Gas firing, electronic
modulation
Gas firing, pneumatic
modulation