Honeywell EXCEL 5000

ALPHABETIC REFERENCE EXCEL CARE CONTROL ICONS
74-5577–33 (US) 188
EN2B-0184 GE51 R0518 (Europe)
between the room temperature setpoint and actual room temperature. EOV
assumes a linear room model.
The minimum advancement of start-up is set by Parameter P7 (lowest cooling time
for opt. cooling). You must set this parameter to its lowest value so that the
calculated start-up point is valid. P7 has a range of 0 to 1080 minutes. The early
switch-on time has a maximum limitation of 1080 min (18 hours).
The minimum limitation of advance time is 0 minutes. When room temperature
setpoint corresponds exactly to the actual room temperature, and P7 is set to 0,
system start-up matches the switching point in the Time Program.
Between these two limits, advancement of system start-up (t
VKE
) is calculated with
the following formula:
t
VKE
= (X3 - X2) * P8