Application

Application Notes
Dual Duct Sequence Configurations
24
Siemens Industry, Inc.
Application Note
A6V11692042
Smart Infrastructure – Building Products
2019-04-01
Parameter configuration for use case 5b:
• VavSuChovrCnd1 = Cooling
• VavSuChovrCnd2 = Heating
• VntDuctSprt = Both ducts
• CtlStrgy = Mixing control
• VntSprtDdband = Duct 2 (mixing will occur at/during setpoint for Duct 1 cold duct)
• Minimum ventilation parameter(s)* = desired CV flow
*In the room AF for ventilation control (VavVntCtl) set min vent parameter for Comfort mode (AirFlMinRCmf) to
desired CV flow; the min vent setpoint object in Duald11 (VavSuAflMinVnt) can be set to zero when the mini-
mum ventilation parameters are used for min vent settings.
Note that if minimum ventilation parameter is not set high (for example during Economy mode) constant vol-
ume is not provided: