Assortment / System Description

Fan coil application
Centrally override valves
17
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17.22 Centrally override valves
Central functions permit the central override of all valve in the supply group.
The following parameters can be used.
Description Name Default value
Enable valve position override
0:No
1:Yes
EnVlvPosOvrr 0:No
Valve position override VlvPosOvrr 100 [%]
17.23 Electric heating coil
One electric heating coil can be configured for fan coil applications. The DRX2
automation station controls electric heating coils via Triac or analog outputs,
regardless of available I/Os. Single-stage, 2-stage, and modulating electric
heating coils are supported.
Figure: Example of a fan coil application with electric heating coils
Key:
DXR2… Automation station R1 Room operator unit
Q1 Fan D1 Presence
YR Electric heating coil D2 Window contact
T Over temperature contact
Plant diagram