Preheater controler @@&name@@

 

Preheater controller, normally influencing the supply air temperature. This switches on as the only temperature controller in ACTIVE mode and then issues enablings according to demand from the preceding or subsequent controller. Minimum and maximum values are active only with attached controller enabling (also if the controller is inactive)

 

In the start phase of the ventilation (see also function "@@&ref@@"), the preheater behaves as follows:

- Enabling pre-flushing: The signal to the valve is issued 100% to achieve a quick flushing of the index.

- Valve enabling (=End of pre-flushing) : A calculated signal is issued to the valve and this value is initialised as cold start

- Enabling of control: Controller actively works and if need be, passes on the enabling to other controllers.

 

In case of upcoming danger of frost or frost warning, the controller issues 100% to the valve. This function also overrides a manual operation and/or the maximum limit.

 

In case of humidifcation, the controller switches off and waits till it is activated by other controllers, if need be.

 

Parameter

Value

Unit control variable

°C

Unit control signal

%

Set point preselection (0=constant, 1=Set point function)

@adj_SollwertWahl.0p@

Set point control variable (if constant)

@adj_Sollwert.1p@

Proportional range

@adj_P_Band.1p@

Reset time

@adj_I_Zeit.1p@ s

Differential time

@adj_D_Anteil.1p@ s

Dead band

@adj_Totzone.1p@

Scanning time of the controller

@adj_Abtasten.1p@ s

Control signal (0=Auto, 1=Manual)

@adj_YWahl.0p@

Control signal with manual intervention

@adj_YHand.1p@

Minimum control variable

@adj_YMin.1p@

Minimum control variable

@adj_YMax.1p@