The VAV application configures a minimum supply air flow in the temperature control dead zone. The function can be configured individually for all room operating mode.
Description | Name | Default value |
|---|---|---|
Minimum supply air for comfort 1: Off | CmfCnf | 4:Minimum ventilation & demand-controlled ventilation |
Minimum supply air for pre-comfort | PcfCnf | 3:Demand-controlled ventilation |
Minimum supply air for economy | EcoCnf | 1: Off |
Minimum supply air for protection | PrtCnf | 1: Off |
Minimum air volume flow for all room operating modes is also configured.
Description | Name | Default value |
|---|---|---|
Supply air VAV minimum air volume flow for ventilation | VavSuAflMinVnt | 0 [m3/h] |
Sequence with
modulating heating valve
| ||||
Y | Output signal |
| TR | Room temperature |
SpH | Effective heating setpoint |
| SpC | Effective cooling setpoint |
YH | Heating valve |
| YC | Cooling valve |
VavSuAirFlMaxH | Maximum air volume flow for heating |
| VavSuAirFlMaxC | Supply air VAV maximum air volume flow for heating |
VavSuAirFlMinH | Supply air VAV minimum air volume flow for heating |
| VavSuAirFlMinC | Minimum air volume flow for cooling |
| VAV volume flow |
|
|
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Figure: Serial control sequence for a VAV application with modulating heating valve
Sequence with
2-stage heating valve
|
| |||
Y | Output signal |
| TR | Room temperature |
| VAV volume flow |
| SpH | Effective heating setpoint |
YH1 | First stage electric heating coil |
| YH2 | Second stage electric heating coil |
VavSuAirFlMaxH | Maximum air volume flow for heating |
| VavSuAirFlMinH | Supply air VAV minimum air volume flow for heating |
Figure: Serial control sequence for a VAV application with 2-stage heating valve