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13 Controller for heating circuits and DHW
13.3
Heating circuits can switch on the burner demand via room thermostats directly in
the pump line. When the boiler reaches 60° C, a signal is output to Z17 (HK After the
thermostat interrupts the pump supply, the boiler switches off when the end temper-
ature is reached.
DHW is controlled via sensor Z20 (DHW) and pump output Z16 (UW). Controllable
DHW pumps are regulated with regard to the boiler temperature.
Hydraulic diagram version B:
Heat consumers are shown symbolically and can be substituted by others!
Version B
Z21
TI
TI
TI
TI
Z17
Z17
55
50
TI
TI
TI
TI
Z16 /
Z38
Z20
Installation Manual
49
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