5.2 System connection
5.2.1 Cascade
System menu
System connection
Cascade
0% output demand stage 1 at output requirement
Specifies the output at 0% output demand during stage 1.
100% output demand stage 1 at output requirement
Specifies the output at 100% output demand during
stage 1.
Shutdown difference level 1
If the temperature difference between the heat source and
heat sink falls below this value, the system is switched off.
0% output demand stage 2 at output requirement
Specifies the output at 0% output demand during stage 1.
100% output demand stage 2 at output requirement
Specifies the output at 100% output demand during
stage 1.
Shutdown difference level 1
If the temperature difference between the heat source and
heat sink falls below this value, the system is switched off.
Output specification delay
The output specification is only set after the set time.
Boiler temperature specification
Temperature that the main boiler specifies.
5.2.2 Boiler 1...5
System menu
System connection
Boiler
Boiler 1...5 active in the cascade
Defines whether the boiler can be active in the cascade.
Boiler 1...5 start priority
Boiler priorities are used to specify the order in which the
boilers start. Where boilers have the same priority, the
boiler currently with the fewest operating hours always
starts first.
Fix boiler 1...5 start priority
The boilers always start in the specified order. If the boiler
with start priority 1 fails, the boiler with start priority 2 takes
over its role and the characteristics of stage 1. If this
should be prevented, then this parameter can be used to
fix the start priority of the boiler. The boiler remains in its
defined stage regardless of the availability of the other
boilers.
Boiler 1...5 cascade operating hours
Displays the number of hours that the boiler has operated
in cascade mode.
5
Menus and parameters
System connection
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