Plant diagram

Figure: Example for a 4-pipe ceiling heating/chilled ceiling application with a 6-port valve (PL-Link)

Key:

DXR2…

Automation station

 

R1

Room operator unit

YHC

6-port valve

 

D1

Presence

CdnMon

Condensation monitor

 

D2

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

YN

Valve closed

 

XN

Valve closed

Figure: Modulating heating and cooling sequence with 6-port valve positions (PL-Link)

Setting parameters PL-Link

Description

Name

Default value

Ceiling heating valve position for value Y2H

Y2HcgVlvPos

16 [%]

Ceiling heating valve position for value Y1H

Y1HcgVlvPos

45 [%]

Valve position neutral YN

VlvPosClsd

50 [%]

Chilled ceiling valve position for value Y1C

Y1CcgVlvPos

55 [%]

Chilled ceiling valve position for value Y2C

Y2CcgVlvPos

84 [%]