Honeywell EXCEL 5000 User Manual

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Honeywell EXCEL 5000 User Manual Manual pdf 21 page image

EXCEL CARE CONTROL ICONS ALPHABETIC REFERENCE23 74-5577–33 (US)EN2B-0184 GE51 R0518 (Europe)Internal Parameters None.Example See the Examples chapter for a description of how to use the ADD icon in a floatinglimits and alarm suppression application.Also see the Data Transfer (IDT) section for examples that show how to use ADDwith IDT.ADH2 (Excel Web / Excel Web II)Function Legacy RACL function: Calculates the slope S of the heating curve for thedetermination of the flow temperature setpoint option to adapt the slope to thebuilding characteristics.I/O Dialog BoxInputs Five inputs where:TSet = room temperature setpointTRm = room temperatureTOat = outside air temperature (req. with adaptation)TWtr = supply water temperature (req. with adaptation)SPmp = heating pump status (req. with adaptation)Outputs Two outputs where:Valid = slope value validity (0=invalid, 1=valid)Valid means the slope value is in a possible relation to the inputs, e.g. values belowthe freezing point may be impossible.Slope = calculated slope valueInternal ParametersParameter Description P1 Adaptation (0 = no adaptation, 1 = adaptation) with default = 0 and a limitof 0 < = x < = 1.P2 Heating curve slope with default = 1, 6 and a limit of 0 < = x < = 4.P3 Heating curve curvature with default = 1,33 and a limit of 0 < = x < = 2.