Functions

ES 5941Z

6.5

Calibration of the circulation volume

Calibration of the circulation volume

Calibration status

The value ZIR07 FLOW RATE CIRCULATION can be determined by means

of an automatic calibration process ZIR06 CIRC. CALIBRATION.

The following can be selected:

n 0: Off. No calibration.

n 1: Manual calibration, reset value to “0” after calibration has

taken value.

n 2: Automatic calibration, each Monday at 2:00 am.

If calibration is active, its status can be followed under ZIR09 STATUS

CIRC. CALIBRATION:

n 0: Inactive – No calibration made to date, or last calibration no

longer valid.

n 1...8: Measurement 1...8. - If measurements 1..4 ok, transfer to 9,

otherwise conduct measurements 5...8 and then evaluate.

n 9: Calibration successful

n 10: Start

n 11: Error – Flow despite pump being switched off.

n 12: Error – Flow rate fluctuation too great when the pump is

switched on.

A maximum of 2 measurement blocks consisting of 4 measurements

are carried out in relation to calibration of ZIR07 FLOW RATE CIRCULA-

TION. If the measured values do not indicated any deviation greater

than the defined tolerance ZIR05 TOLERANCE CALI. CIRC, calibration

was successful and the value is displayed under ZIR07 FLOW RATE

CIRCULATION.

The return flow switch serves to ensure the temperature layering in

solar tanks, for example. The changeover valve VSR can charge the

return water in the tank at 2 different heights.

Parameter SCH04 can be used to enter a fixed value in order to define

the return flow switch independently of the tank sensor.

n TPR <TU1 + 2 K, then VSR active; the return is charged in the

bottom zone.

n TPR> TU1 + SCH01 DIFF. RETURN SWITCH, then VSR off; the return

is charged in the top zone.

This can be used if ZIR00 CIRCULATION MODE is not set to 0.

The following selection is possible:

Calibration

6.6

Return flow switch

Return flow switch

Function

6.7

Thermal disinfection

Thermal disinfection

03/2024 Item no. 215790 EA no. 1321

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