Manual Siemens Climatix 2 (page 52 of 77) (English)

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INSTRUCTION MANUAL OF THE SIEMENS CLIMATIX 2 CONTROL EQUIPMENT

WARNING!!! After the functionality check, it is necessary to switch all the aggregates to the mode

Auto again. The indicators on buttons "A" and "B" - see chap. 2 - stop blinking.

7.4. BOILER PUMP

The line Boiler pump is used to set all the parameters that are necessary for correct operation of

the pump of the primary circuit.

The parameter Switch ON temperature determines the temperature at which the pump of the

primary circuit is turned on if this pump is controlled by the control equipment of the boiler.

The parameter setting is ranging from 40 – 60 °C; the default value is 45 °C.

The instructions for changing this parameter can be found in chapter 4.

When water in the boiler is cooling, the pump of the primary circuit is turned off according to the

hysteresis set in the Differential OFF parameter and after expiry of a period set in the Pump

overrun time parameter.

The setting of the parameter Differential OFF is ranging from 1 to 10 °C; the default value is 5 °C.

The instructions for changing this parameter can be found in chapter 4.

The setting of the parameter Pump overrun time is ranging from 0 – 30 min; the default value is 2

min.

The instructions for changing this parameter can be found in chapter 4.

Example:

The values set in the control equipment are:

- Switch ON temperature 45 °C

- Differential OFF 5 °C

- Pump overrun time 2 min

If the boiler is put into operation, the temperature of water in the boiler starts to rise. If it

reaches the value of 45 °C, the pump of the primary circuit turns on. If the temperature of

water in the boiler starts to fall, for any reason, and if it reaches the value of 40 °C (45-5=40)

and this value does not change for 2 min, the pump turns off.

After passing the time set in the Pump overrun time parameter, the pump also turns off if the

boiler switches to the mode “External reduce” - see chap. 6.2. - or if the room thermostat of the

external input disconnects. If they connect again, the pump automatically turns on.

If the temperature of water in the boiler rises above 85 °C, the boiler pump is in continuous

operation, regardless of the operating mode of the boiler. It turns off if the temperature falls below

85 °C and the overrun time is 2 min.

The selection Frost protection (OFF/ON) defines whether pump of the primary circuit is in the

mode “frost protection” or not. If ON is selected, the pump of the primary circuit is turned on

according to the actual value of the outside temperature B9, even if no demand on heating is

received.

salve
chiedo se è possibile fare un by pass per far partire il sistema di condizionamento a causa dell'oscuramento :del controllore POL/STD
grazie
Submitted on 11-3-2022 at 12:44
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Siemens Climatix 2 Manual

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