Bosch SSB1000 SA, Руководство пользователя

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6720892984 (2019/02) US SSB
12 | BURNERS cascade
3 .3 .1 Cascade – domestic hot water
Settings
In the installer DHW menu of the managing burner control the
DHW_
Mode
should be set.
Available DHW modes in cascade are mode 1 or 2.
Dependent Burner
In case a burner is set as dependent (Address = 2-8/16) the DHW
setpoint is always provided by the managing burner, the internal control of
the setpoint functions are disabled.
3 .3 .2 Cascade – DHW priority (Rev . 3 .0 .0 .12377)
Three possible level of DHW and CH heating priority are configurable:
• DHW Priority - BOTH [0]: When both CH and DHW demand have
to be served the priority it is given to the DHW demand for a given
interval (indicated with parameter
DHW_Max_Priority_Timer
).As
soon as the interval has expired the priority switches to CH demand.
The interval time will be reloaded and priority will switch again after
the interval is over.
• DHW Priority - CH [1]: The priority is permanently given to CH
Demand.
• DHW Priority - DHW [2]: The priority is permanently given to DHW
Demand.
• DHW/CH Parallel[3]: The priority us permanently given to DHW
Demand. But Under the following condition the CH pump can started:
Setpoint_CH
< SystemTemp.
Relevant variables
Specific Parameters Level
(Default) Value Range
DHW Priority
Both, CH or DHW priority,
Parallel
2: Installer 2 0..3
DHW Max Priority
Timer
[min]
Interval time for switching
the priority
2: Installer 60 1..60
3 .3 .3 Limitation of the MAX power for DHW (Rev . 4 .0 .905 .16570)
When demand change from CH to DHW all burners in the boiler stop
and start DHW demand with a limit amount of burner. The parameter
N_
Max_Active_Dep_DHW
indicates the number of burners available for
DHW. This number will be always be limited in the control to the amount
of burners that is available in the cascade.
Relevant variables
Specific Parameters Level
(Default)
Value
Range
N_Max_Active_Dep_
DHW
Max amount of active burners
per boiler for serve DHW
demand
2: Installer 1 0..16