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5.8
Flash adaptation . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
5.8.1
5.9
Adaptation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
6
Functions of the DHW circuit . . . . . . . . . . . . . . . . . . . . . 59
6.1
DHW heating in the storage tank system . . . . . . . . . . . . . . . . 59
6.1.1
DHW circuit additionally controlled by a globe valve . . . . . . . . . . 61
6.2
DHW heating in the storage tank charging system . . . . . . . . . . . 62
6.3
DHW heating in instantaneous heating system . . . . . . . . . . . . . 64
6.4
DHW heating with solar system . . . . . . . . . . . . . . . . . . . . 65
6.5
Intermediate heating operation . . . . . . . . . . . . . . . . . . . . 65
6.6
Parallel pump operation . . . . . . . . . . . . . . . . . . . . . . . . 65
6.7
Circulation pump operation during storage tank charging. . . . . . . . 66
6.8
Priority operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
6.8.1
Reverse control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
6.8.2
Set-back operation . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.9
Forced charging of the DHW storage tank . . . . . . . . . . . . . . . 67
6.10
Thermal disinfection of the DHW storage tank . . . . . . . . . . . . . 68
7
System-wide functions . . . . . . . . . . . . . . . . . . . . . . . . 70
7.1
Automatic summer time/winter time changeover . . . . . . . . . . . . 70
7.2
Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
7.3
Forced operation of the pumps. . . . . . . . . . . . . . . . . . . . . 71
7.4
Return flow temperature limitation . . . . . . . . . . . . . . . . . . . 71
7.5
Condensate accumulation control . . . . . . . . . . . . . . . . . . . 72
7.6
Three-step control . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
7.7
On/off control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
7.8
Continuous control in control circuit Rk1 . . . . . . . . . . . . . . . . 73
7.9
Releasing a control circuit/controller over the binary input . . . . . . . 74
7.10
Processing of external demand in control circuit Rk1 . . . . . . . . . . 75
7.11
Creep feed rate limitation using a binary input . . . . . . . . . . . . . 76
7.12
Locking manual level . . . . . . . . . . . . . . . . . . . . . . . . . 76
7.13
Locking the rotary switch . . . . . . . . . . . . . . . . . . . . . . . 77
7.14
Feeder pump operation . . . . . . . . . . . . . . . . . . . . . . . . 77
7.15
Setting a customized key number . . . . . . . . . . . . . . . . . . . 77
8
Operational faults . . . . . . . . . . . . . . . . . . . . . . . . . . 78
8.1
Error list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
8.2
Sensor failure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
8.3
Temperature monitoring . . . . . . . . . . . . . . . . . . . . . . . . 79
4
EB 5573 EN
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