VS00E01KNXFI01010007.
DOC
Eelecta® Touch Panel 3,5 KNX – Product Handbook
119/156
Eelectron SpA, Via Magenta 77/22, I-20017 Rho (MI), Italia
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VS00E01KNXFI01010007.doc
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Value
„Input, Fan Speed“
Object
„Output, Fan Continuous [%]“
Object „Output, Fan ...
V1 V2 V3
0 0
%
0
0
0
1 Limit
1
1
0
2 Limit
2
0
1
0
3 Limit
3
0
0
1
17.7.4.
2 vs. 4-Pipes Fancoil
2 Pipes
2-Pipe Fancoils only have one circuit for both heating and cooling. So there is one valve that controls the flow of the
hot/cold media and one that switches between heating and cooling. This controller provides the objects corresponding to
the selected type (e.g. PI-Controller) necessary to control a valve for the flow. The object "Output, Heating/Cooling"
provides the information whether it is in heating or cooling mode
4 Pipes
4-Pipe Fancoils have 2 circuits, one for the heating and one for the cooling media. So the Provides two seperate
controllers for heating and cooling. This controller provides the objects corresponding to the selected types (e.g. PI-
Controller) necessary to control 2 valves for the flow, one for heating, one for cooling. The Object "Output,
Heating/Cooling" provides the information whether it is in heating or cooling mode.
17.7.5. Switched
vs.
gap fancoil controller
If a switched room controller type is selected, it is necessary to switch between heating and cooling mode by changing
the object "Input, Heating/Cooling". If a gap is selected, a temperature difference needs to be defined (parameter
"Heating/cooling bandgap (Temp. Controller Settings), Page 129“), so that in the gap around the comfort setpoint all
controllers are inactive.
If a fancoil is used for heating and cooling (especially if a 2-Pipe fancoil is used), and if the parameters are set
accordingly, there is the possibility that e.g. the heating valve opens immediately after the cooling valve is closed, so that
the hot heating fluid floods the cold system, which may be unwanted. To prevent this, use the parameter „Heating/cooling
changeover deadtime (Temp. Controller Settings), Page 130“.
17.7.6.
Controller output objects
The prefixes such as:
-Output, Heating/Cooling,
-Output, Cooling 1st Stage .
-Output, Cooling 2nd Stage,
-Output, Cooling,
-Output, Heating 1st Stage,
-Output, Heating 2nd Stage,
-Output, Heating,
correspond to the available controllers, which depend on the selected room temperature controller (Parameter "RTC
Parameter, Page 121“)
1st level switch
This one comes with the 3-point controller and is one of the two 1-bit outputs of this controller. The following figure shows
the output values for a simple 3-point heating controller.
