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13 Controller for heating circuits and DHW
13.6
The accumulator sensor is connected to terminal Z37.
The set accumulator temperature regulates the burner demand. The pump output X16
(UW) and X38 (PWM) are used for the boiler controlled pump, which is not active
below 60° C.
A room thermostat can be connected via input Z27. This room thermostat controls
the heating circuit via pump output Z17 (HK) and output X39. The DHW is regulated
in a warm water boiler via the sensor Z20 and the pump Z40-Z17, the DHW sensor
(Z20) is attached to the warm water boiler. The residual heat of the boiler is loaded
into the accumulator.
Hydraulic diagram version E:
Heat consumers are shown symbolically and can be substituted by others!
For a heating circuit and hot water, PWM pumps or the external relay box must be
used to allow individual control of the pumps.
Version E
Z21
TI
Z16 Z38
Z37
Z27
TI
TI
TI
TI
Z20
Z39
Z40
Z17
Z17
55
50
Installation Manual
81
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