Shading green leaf (ShdGrnLf11)
Overview
The application function "Shading green leaf 11, impact on shading energy efficiency" (ShdGrnLf11) handles the green leaf functionality for the room segment.
Function
The AF compares the current blinds position in manual mode against the solar radiation condition and the room thermal load to detect situations where energy may be saved if the blinds were in another position. The result is indicated in ShdEei and provided to room coordination (RHvacCooxx > RGrnLf11) for further evaluation.
RGrnLf11 sends a reset request (REeiRst) if a user presses the green leaf button on a room operator unit and the blinds are in an unsuitable position. In this case, the response of the AF depends on parameter SetAutoEmgPrtM, set in AF Shd11:
- "0" moves the blinds to the automatic position, but leaves them in manual mode 3.
- "1" releases the manual mode, so that automatic is active.
Configuration
None.
Interface
Interface | Description | Type | Ref. | Owned by |
|---|---|---|---|---|
ShdEei | Energy efficiency indication shading 1:Undefined | MCalcVal | ● | - |
REeiRst | Reset of room energy efficiency indicator 0:Inactive | BCalcVal | ● | - |
Engineering and commissioning
- The AF is required if green leaf function is used.
- For correct operation, the AF requires AF ShdEngyEffcy11.
Troubleshooting
Verify the function of the chart in CFC: The chart output ShdEei$ indicates the green leaf state.