Plant diagram

Figure: Example for a 4-pipe floor heating/cooling application with a 6-port valve

Key:

DXR2…

Automation station

 

ROpUn

Room operator unit

YHC

6-port valve

 

PscDet

Presence

 

WndCont

Window contact

Sequences

 

Y

Control signal/rotational angle

 

X

Valve opening

Y2C

Cooling open

 

X2C

Cooling valve open

Y1C

Cooling begins

 

X1C

Cooling valve closed

Y1H

Heating begins

 

X1H

Heating valve closed

Y2H

Heating open

 

X2H

Heating valve open

Figure: Modulating heating and cooling sequence with 6-port valve positions

Parameter settings

Description

Name

Default value

Cooling valve position for value X1C

X1ClgVlvPos

0 [%]

Cooling valve position for value Y1C

Y1ClgVlvPos

50 [%]

Cooling valve position for value X2C

X2ClgVlvPos

100 [%]

Cooling valve position for value Y2C

Y2ClgVlvPos

15 [%]

Heating valve position for value X1H

X1HtgVlvPos

0 [%]

Heating valve position for value Y1H

Y1HtgVlvPos

50 [%]

Heating valve position for value X2H

X2HtgVlvPos

100 [%]

Heating valve position for value Y2H

Y2HtgVlvPos

85 [%]