Assortment / System Description

Ceiling h
eating/chilled ceiling application
Actuators
16
A6V10866237_en--_b_08 87 | 275
Y Control signal/rotational angle X Valve opening
Y2
C
Cooling open X2
C
Cooling valve open
Y1
C
Cooling begins X1
C
Cooling valve closed
Y1
H
Heating begins X1
H
Heating valve closed
Y2
H
Heating open X2
H
Heating valve open
Y
N
Valve closed. X
N
Valve closed.
Figure: Modulating heating and cooling sequence with 6-port valve
positions (PL-Link)
Description Name Default value
Heated beam valve position Y2
H
VlvPosHMax 16 [%]
Heated beam valve position Y1
H
VlvPosHMin 45 [%]
Valve position neutral Y
N
VlvPosClsd 50 [%]
Chilled beam valve position Y1
C
VlvPosCMin 55 [%]
Chilled beam valve position Y2
C
VlvPosCMax 84 [%]
16.6 Actuators
The DRX2 automation station controls heated/chilled beam valves via Triac or
analog outputs, regardless of available I/Os. 3-position actuators, thermal pulse
width modulation (PWM) actuators, PWM actuators with return spring can be
connected to the Triac outputs.
A maximum of 1 thermal valve can be connected to each Triac on the DXR2
automation station with AC 230 V power.
Conventional 0…10V actuators as well as 6-port valves can be connected to
analog outputs.
Sequences
Setting parameters PL-
Link