Honeywell EXCEL 5000 User Manual page 117

EXCEL CARE CONTROL ICONS
Internal Parameters
Heating curve curvature P1
Heating curve slope P2
Heating curve slope limit P3
Adaption (radio button) P4
Parameter Number
Descriptions
HCA Operation
Number type: Decimal, Unit: None
Default: 1.33, Range: 0 to 2.
Number type: Decimal, Unit: None
Default: 1.6, Range: 0.4 to 4.5
Number type: Decimal, Unit: None
Default: 1.6, limits: 0.4 to 4.5
Selection whether operation is with or without adaptation.
Range: 0 through 2, default: 0 (1= with adaption, 0= no adaption)
With Adaptation
P1 Heating curve curvature
P2 Heating curve slope
P3 Heating curve slope limit
P4 1 if adaptation is selected
Without Adaptation
P1 Heating curve curvature
P2 Heating curve slope
HCA is a weather-compensated discharge air temperature calculator, that is,
software assigns discharge air temperature setpoints to temperatures by means of a
heating curve. If a room temperature sensor is connected, the controller can adapt
this heating curve automatically. Control example:
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ALPHABETIC REFERENCE
Excel Web / Excel Web II
74-5577–33 (US)
EN2B-0184 GE51 R0518 (Europe)