54
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Variable air volume controllers
Connection
Connecting cable
The connection is made using the connecting cable mounted to the VAV-Compact
device.
Note
– Supply via safety isolating transformer!
– Connections 1 and 2 (AC/DC 24V) and
5 (MP signal) must be routed to accessible
terminals (room temperature controller,
floor distributor, control cabinet, etc.) in
order to enable access with the tool for
diagnostic and service work.
!
Technical data
(continued)
Safety
Mode of operation
Type 1 (in acc. with EN 60730-1)
Rated impulse voltage
0.5 kV (in accordance with EN 60730-1)
Control pollution degree
2 (in accordance with EN 60730-1)
Ambient temperature
0 … +50°C
Non-operating temperature
–20 … +80°C
Ambient humidity
5 ... 95% r.h., non-condensing (in accordance with EN 60730-1)
Maintenance
Maintenance-free
No. Designation Wire colour Function
1
T –
black
– T
AC/DC 24V
supply
2
+ ~ red
~ +
3
Y white
Reference signal VAV/CAV
5
U orange
– Actual value signal
– MP-Bus connection
VAV – Variable operation min … max
Wiring diagrams Example 1:
VAV with analogue reference signal
Example 2:
VAV with shut-off (CLOSE), 2 ... 10V mode
PC-Tool
ZTH-GEN
..MV-D3-MP
~
T
+
_
U
Y
AC 24 V
DC 24 V
T
_
~
+
T
2 3
1
5
PC-Tool
ZTH-GEN
..MV-D3-MP
~
T
+
_
U
Y
AC 24 V
DC 24 V
T
_
~
+
T
2 3
1
5
Example 3:
VAV with analogue reference signal
supply/exhaust air in parallel operation
Example 4:
VAV with analogue reference signal,
in Master/Slave operation
PC-Tool
ZTH-GEN
..MV-D3-MP
~
T
+
_
U
Y
AC 24 V
DC 24 V
T
_
~
+
T
2 3
1
5
PC-Tool
ZTH-GEN
..MV-D3-MP
~
T
+
_
U
Y
2 3
1
5
PC-Tool
ZTH-GEN
..MV-D3-MP
~
T
+
_
U
Y
AC 24 V
DC 24 V
T
_
~
+
T
2 3
1
5
PC-Tool
ZTH-GEN
..MV-D3-MP
~
T
+
_
U
Y
2 3
1
5
VAV reference signal
0 … 10V / 2 … 10V
MP / Actual value signal
0 … 10V / 2 … 10V
VAV reference signal
2 … 10V
Switching CLOSED / VAV mode
MP / Actual value signal
0 … 10V / 2 … 10V
VAV reference signal
0 … 10V / 2 … 10V
MP / Actual value signal
0...10V / 2...10V
MP / Actual value signal
0 … 10V / 2 … 10V
Supply air
Exhaust air
VAV reference signal
0 … 10V / 2 … 10V
MP / Actual value signal
0...10V / 2...10V
MP / Actual value signal
0 … 10V / 2 … 10V
Master
Slave
CLOSED
VAV
Reference signal Slave
