Zennio Analog, Руководство пользователя

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Fan Coil ‘Analog’
https://www.zennio.com Technical Support: https://support.zennio.com
16
ANNEX I. AUTOMATIC AIR RECIRCULATION IN
COOLING MODE
If this function automatic air recirculation in cooling mode is activated and the system
is operating in cooling mode:
When the valve is closed, the fan must remain on or switch on.
In case the input control command is lower than the minimum value to activate
the valve, the fan speed will be the value specified by parameter and modifiable
by object “
[FCn] Fan: Automatic Air Recirculation Speed
”.
Once recirculation is active, events such as fan coil deactivation, a mode change or a
bus failure can force the fan to stop.
Whereas, if automatic air recirculation in cooling mode is not enabled or the system
is operating in heating mode:
When receiving a control command lower than the value that activates the valve,
both the valve and the fan will take a value of 0%.
The Table 1 below shows the specific effects of having or not having the automatic air
recirculation function enabled in different situations. The table is generated starting with
the valve closed.
Speed Control
Automatic
Recirculation
Current Mode
Implications
Valve Fan
Automatic
Enabled
Heating Closed Switch Off
Cooling Closed Recirculation
Disabled
Heating Closed Switch Off
Cooling Closed Switch Off
Manual
Enabled
Heating Closed Switch Off
Cooling Closed Manual
Disabled
Heating Closed Switch Off
Cooling Closed Switch Off
Table 1. Automatic Air Recirculation.