35
Engineering information "Vitomax cold and warm starts in shell boilers"
Note
Prevent unnecessarily high mechanical stress and condensate formation in the flue gas during a cold start. Wait
until the boiler has reached normal operating conditions before slowly heating up the consumer network.
Time
Boiler
flow tem-
perature
Boiler re-
turn tem-
perature
Water
tempera-
ture ECO
outlet
Shunt
pump –
load or
position
of shunt
valve
Combus-
tion heat-
ing output
Flue gas
tempera-
ture
Comments
h
°C
°C
°C
%
kW
°C
Burner load maximum 30 % of the maximum re-
quired combustion heating output or low burner
load
Start 0.00
0.25
0.50
0.75
1.00
1.25
1.50
1.75
2.00
2.25
2.50
2.75
3.00
Commissioning/service reports
Start-up report
(cont.)
6152553
Appendix
Summary of Contents for M22
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