Transfer start diff.6 ... 10 ... 20 KIf the differential set here between cylinder 1 and cylinder 3 is exceeded and all conditions for switching on have
been met, the transfer pump is on.
Transfer stop diff.3 ... 5 ... 17 KIf the differential between cylinder 1 and cylinder 3 falls below the value set here, the transfer pump is off.
Start diff. diff. ctrllr6 ... 20 KIf the differential between the measured temperature at the heat source (TS14) and the measured temperature at
the heat sink (TS15) is above the set value, the output signal is on (only with Temp differential controller (R)).
Stop diff. diff. ctrllr3 ... 17 KIf the differential between the measured temperature at the heat source (TS14) and the measured temperature at
the heat sink (TS15) is below the set value, the output signal is off (only with Temp differential controller (R)).
Max source t. diff ctrllr13 ... 90 ... 120 °CIf the temperature at the heat source exceeds the value set here, the temperature differential controller switches off
(only with Temp differential controller (R)).
Min. source temp. Diff ctrl10 ... 20 ... 117 °CIf the temperature at the heat source exceeds the value set here and all conditions for switching on have been met,
the temperature differential controller switches on (only with Temp differential controller (R)).
Max setbck temp diff ctrl 20 ... 60 ... 90 °CIf the temperature at the heat sink exceeds the value set here, the temperature differential controller switches off
(only with Temp differential controller (R)).
Table 21
WARNING: Risk of scalding!
▶If DHW temperatures above 60 °C are set or thermal
disinfection is switched on, a mixing valve must be
installed.
Menu itemAdjustment rangeFunction description
DHW controller act.Boiler•One DHW system is installed and is controlled by the heat appliance.
•2 DHW systems are installed. One DHW system is controlled by the heat appliance. The 2nd DHW system is
controlled by an MM 100 module (coding switch set to 10).
Thermal disinfection, reheating and solar optimisation only have an effect on the DHW system that is controlled by
the heat appliance.
external module 1
•One DHW system is installed and is controlled by an MM 100 module (coding switch set to 9).
•2 DHW systems are installed. Each DHW system is controlled by an MM 100module (coding switch set to 9/10).
Thermal disinfection, reheating and solar optimisation only have an effect on the DHW system that is controlled by
external module 1 (coding switch set to 9).
external module 2
•2 DHW systems are installed. One DHW system is controlled by the heat appliance. The 2nd DHW system is
controlled by an MM 100 module (coding switch set to 10).
•2 DHW systems are installed. Each DHW system is controlled by an MM 100 module (coding switch set to 9/10).
Thermal disinfection, reheating and solar optimisation only have an effect on the DHW system that is controlled by
external module 2 (coding switch set to 10).
Therm.dis./daily ht cyl1YesSwitches thermal disinfection and daily heat-up of cylinder 1 on or off.
No
Therm.dis./daily ht cyl2YesSwitches thermal disinfection and daily heat-up of cylinder 2 on or off.
No
Therm.dis./daily ht cyl3YesSwitches thermal disinfection and daily heat-up of cylinder 3 on or off.
No
Daily heat start time00:00 ... 02:00
... 23:45 h
Start time for daily heat-up. Daily heat-up ends after a maximum of 3 hours. Only available if the MS 200 module is
installed in a BUS system without a heat source (not possible with all user interfaces).
Daily heat temp.60 ... 80 °CDaily heat-up ends once the set temperature is reached, or, if the temperature is not reached, after a maximum of
3 hours. Only available if the MS 200 module is installed in a BUS system without a heat source (not possible with all
user interfaces).
Table 22
Menu itemAdjustment rangeFunction description
Start solar thermal
system
YesThe solar system only starts up once this function has been enabled.
Before starting up the solar thermal system, you must:
▶Fill and vent the solar thermal system.
▶Check the parameters for the solar thermal system and, if necessary, adjust them to suit the installed system.
No
This function can be used to switch off the solar system for maintenance purposes.
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