48
|
Variable air volume controllers
Notes
y
y
Connection and terminal designations of the motion detec-
tor in accordance with the manufacturer‘s specification
y
y
Mode setting on the CAV controller: 0 … 10 V oder 2 … 10 V
Brief Description
Control solution for CAV single-room application
CAV single-duct system, occupancy-controlled Stand-
alone operation or integrated in a building automation
system (I/O integration)
Functions
The CAV controller is controlled by means of the motion
detector in two modes on the basis of room occupancy
min
…
max
:
– Room unoccupied: constant air volume
min
– Room occupied: constant air volume
max
Motion detector
With switching output for low switching capacity (load
0.24 mA)
VAV-Compact control device
..MV-D3-MP
VAV-Compact control device for supply air, exhaust air
or mixing units, comprising a sensor, VAV controller and
actuator for pressure-independent air volume controls.
y
y
Damper position feedback controlled via the MP-Bus
for demand based fan optimisation.
1
3
y
5
U
5
1
3
y
5
U
5
2
~
2
~
AC 24 V
CAV 2
2)
1)
CAV 1
~
1) Master-Slave
or
2) parallel
min
Motion detector
max
Act. value sig.
Act. value sig.
Wiring diagram
CAV single-duct system, occupancy-controlled
IRC-VAV
CAV room solution with motion detector
Volumetric
flow max
min
Room
occupied
Room
unoccupied
Function diagram
Single-duct systems
VAV-Compact
Conventional application
