36 EVOMOD BOILER OPERATING SEQUENCE
Note: the sequence shown is for a 1000kW, 4 burner boiler.
The sequence for other boilers is very similar but the maximum number of burners that
can be switched on cannot exceed the number of burners fitted
Standby
Heat Demand
from Switched Live or
0-10V Input
Yes
Header Pump On
Standby
1
Burner On
2 Burners On
3 Burners On
4 Burners On
Heat Demand Off
Temp < Set point
Heat Demand Off
Heat Demand Off
Heat Demand Off
Heat Demand Off
Pump Overrun
Demand < 50kW
Demand > 150kW
Demand > 225kW
Demand > 300kW
Demand > 150kW
Demand > 200kW
Demand > 100kW
INST
ALLA
TION
33
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Installation & Servicing
INSTALLATION
Содержание EVOMOD 250
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