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ECL-PTU-207 Preloaded Applications
Damper Control
The damper control is based is on SpaceCO2, CoolingLoad, and nvoEffectOccup (nvoFP02)
The CO2 load is calculated using PID_CO2 nvoSpaceCO2 as measured value and nciSpaceCO2Lim.
nvoEffectOccup (nvoFP02) EnableFreeCooling (BC1)
Damper management
Unoccupied
Any
The damper is closed to 0%.
Occupied or Bypass
Enable
The damper is controlled by the grater of the CO2 and
Cooling load signals.
Disable
The damper is controlled by the CO2 load.
Standby
Enable
The damper is controlled by the Cooling load.
Disable
The damper is closed to 0%.
Table 7: Damper Control
Discharge Temperature Control
The discharge temperature control allows the limitation of the heating and/or cooling valve depending
on the configuration of nciMiscConfig.DischargAirLimitType (nviFP44) and of the matching PID value
(MaxDischAirLimit (PID4) / MinDischAirLimit (PID5)):
£
Heating valve limitation (if nciMiscConfig.DischargAirLimitType (nviFP44) = Highlimit or High-
LowLimit): the heating valve is limited by MaxDischAirLimit (PID4) which is calculated depending
on the discharge temperature and nciMiscConfig.MaxDischAirSP (nviFP44): the valve opening is
limited to the minimum value between Heating Load and MaxDischAirLimit (PID4).
£
Cooling valve limitation (if nciMiscConfig.DischargAirLimitType (nviFP44) = LowLimit or High-
LowLimit): the cooling valve is limited by MinDischAirLimit (PID5) which is calculated depending on
the discharge temperature and nciMiscConfig.MinDischAirSp (nviFP44) , the valve opening is lim-
ited to the minimum value between Cooling Load and MinDischAirLimit (PID5).
Sequence of Operation
