5 Application functionalities
5.1 Application use cases
The application can be operated in two different use cases that
1. HRV system as the only influence on air flow:
Characteristics:
●
Changes in fan speed have a direct influence on the air flow in the multiple
rooms.
●
The fan speed is depending on fan speed control, special fan speed control,
temperature-, humidity- and air quality control.
●
Commonly used with linear fan speed or air flow control.
Advantages:
●
This configuration allows the full functionality described in chapter
"Configuration [➙ 25]".
2. Independent secondary controls maintain dampers or VAV boxes:
Characteristics:
●
Changes in fan speed might have no influence on the air flow in the rooms, as
they can be compensated by the secondary controls.
●
Commonly used with HRV duct pressure control.
Advantages:
●
The influence of the room conditions on the HRV air flow can be limited
depending on the system’s functionality.
●
4 modes are available, in which the available functions and thus control
choices vary from mode to mode. For example, mode 4 can be selected for
VAV supply and extract:
Secondary control / Function
Mode 1
Mode 2
Mode 3
Mode 4
Fan boost
X
X
Fireplace mode
X
X
X
Kitchen hood mode
X
X
X
Temperature control
X
Humidity control
X
Air quality control
X
Configuration parameters
Basic settings
BACnet object
R/RW
Note
Room influence to fan speed
configuration
FanSpdCtlCnf
MVAL, 392
RW
Room influence to fan speed
configuration
In ABT Go this parameter can be found under "Favorites > Favorite operation >
Temperature control".
Application functionalities
Application use cases
5
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