6720892984 (2019/02) US SSB
14 | BURNERS cascade
• Starting Burners: If the
T_System
is
Hyst_Down_Start
degrees below the
Cascade_Setpoint
the burners are started at intervals of Start_
Interval, for example 3 min.
• Stopping Burners: If the
T_System is Hyst_Up _Sto
p degrees above the
Cascade_Setpoint
, the burners are stopped at intervals of
Stop_
Interval
, for example 3 min.
Power balance
When the
T_System
is between
Hyst_Down_Start
and
Hyst_Up_Stop
a power balance algorithm can be activated.
See “3.3.5 Cascade – power balance mode (Rev. 4.0.905.15906)” pag. 15.
Stop all dependent
All the dependents are stopped as soon as the
T_System
is far greater than
Cascade_Setpoint
.
The following graph shows when all the burners are stopped:
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