Honeywell EXCEL 5000 User Manual

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Honeywell EXCEL 5000 User Manual Manual pdf 116 page image

ALPHABETIC REFERENCE EXCEL CARE CONTROL ICONS74-5577–33 (US) 118EN2B-0184 GE51 R0518 (Europe)Heating Curve with Adaptation / HCAFunction Calculates an output according to a user-defined and adaptable heatingcompensation curve. The output is used as a setpoint for a discharge control loop.For example, HCA can be used to calculate a discharge air temperature setpoint.Software calculates the discharge air temperature setpoint from the roomtemperature setpoint and the outdoor air temperature using the heatingcompensation curve. See Operation note in this section for more details.I/O Dialog BoxExcel Web / Excel Web IIInputs Four analog inputs (X1 through X4) and one digital input (XD5), where:X1 (Excel Web / Excel Web II: TSet) = Room temperature setpointX2 (Excel Web / Excel Web II: TOat) = Outdoor air temperatureX3 (Excel Web / Excel Web II: TRm) = Room temperatureX4 (Excel Web / Excel Web II: TWtr) = Discharge boiler water temperatureXD5 (Excel Web / Excel Web II: SPmp) = Heating pump statusThe room temperature setpoint (X1) must have a user address.The X3, X4, and XD5 inputs are only required and only appear when working withadaptation.Output One analog output Y (Excel Web / Excel Web II: TWtr).