5.10 Flash adaptation. . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
5.10.1 Flash adaptation without outdoor sensor (room temperature dependent) . 88
5.11 Adaptation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
5.12 Pump management . . . . . . . . . . . . . . . . . . . . . . . . . . 89
5.13 Cooling control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
5.14 Differential temperature control. . . . . . . . . . . . . . . . . . . . . 92
6 Functions of the DHW circuit . . . . . . . . . . . . . . . . . . . . . . 93
6.1 DHW heating in the storage tank system . . . . . . . . . . . . . . . . 93
6.1.1 DHW circuit additionally controlled by a globe valve . . . . . . . . . . 95
6.2 DHW heating in the storage tank charging system . . . . . . . . . . . 96
6.2.1 Cold charging protection. . . . . . . . . . . . . . . . . . . . . . . . 98
6.3 DHW heating in instantaneous heating system . . . . . . . . . . . . . 99
6.4 DHW heating with solar system. . . . . . . . . . . . . . . . . . . . 100
6.5 Intermediate heating operation . . . . . . . . . . . . . . . . . . . . 100
6.6 Parallel pump operation . . . . . . . . . . . . . . . . . . . . . . . 100
6.7 Speed control of the charging pump . . . . . . . . . . . . . . . . . 101
6.8 Circulation pump operation during storage tank charging . . . . . . . 101
6.9 Priority operation. . . . . . . . . . . . . . . . . . . . . . . . . . . 102
6.9.1 Reverse control. . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
6.9.2 Set-back operation . . . . . . . . . . . . . . . . . . . . . . . . . . 103
6.10 Forced charging of the DHW storage tank. . . . . . . . . . . . . . . 103
6.11 Thermal disinfection . . . . . . . . . . . . . . . . . . . . . . . . . 104
7 System-wide functions . . . . . . . . . . . . . . . . . . . . . . . . 106
7.1 Automatic summer/standard time swichover . . . . . . . . . . . . . 106
7.2 Frost protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
7.3 Forced operation of the pumps . . . . . . . . . . . . . . . . . . . . 107
7.4 Return flow temperature limitation. . . . . . . . . . . . . . . . . . . 107
7.5 Condensate accumulation control . . . . . . . . . . . . . . . . . . . 108
7.6 Three-step control . . . . . . . . . . . . . . . . . . . . . . . . . . 109
7.7 On/off control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
7.8 Continuous control . . . . . . . . . . . . . . . . . . . . . . . . . . 109
7.9 Releasing a control circuit/controller over the binary input . . . . . . . 110
7.10 Speed control of the charging pump . . . . . . . . . . . . . . . . . 111
7.11 Processing an external demand . . . . . . . . . . . . . . . . . . . . 111
7.12 Flow rate/capacity limitation in Rk1. . . . . . . . . . . . . . . . . . 113
7.12.1 Limitation using pulse input . . . . . . . . . . . . . . . . . . . . . . 113
7.12.2 Limitation using 0/4 to 20 mA signal . . . . . . . . . . . . . . . . . 114
7.12.3 Creep feed rate limitation using a binary input . . . . . . . . . . . . 115
EB 5576 EN 6
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