Adjustment tool with PP interface
for VAV controller
• Nominal voltage AC/DC 24 V
• Peer-to-peer connection
to VAV controller via
– U/PP connection
– Service socket
– Connection terminals
Brief description
Technical data
Dimensions / weight
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Technical data sheet
The ZEV adjustment tool enables the operating volumetric flow settings in VAV and CAV sys-
Applications
tems with conventional control to be adjusted on site. It is not suitable for systems with an MP
bus connection.
Can be used with
– NMV-D2, VRD2, VRD2-L
– LMV-D2M, NMV-D2M
– LMV-D2-MP, NMV-D2-MP, SMV-D2-MP
2) 3)
– LHV-D2M
Connection
The ZEV is connected to the VAV-Compact using the PP (peer-to-peer) interface of the VAV
controller.
As well as using the service socket on the VAV-Compact, it is also possible to connect the ZEV
to easily accessible connection points such as the service plug on the CR24-B room tempera-
ture controller or on the terminals in the control cabinet. This means there is no need for direct
access to the VAV controller.
The 24 V supply to the ZEV comes via the service socket of the VAV, CR24 controller or from a
Supply
local 24 V supply, e.g. connection terminals of the VAV controller.
The VAV-Compact devices do not have any operating elements such as switches or setpoint
VAV-Compact
potentiometers. If necessary, the operating parameters are set using the ZEV or another adjust-
ment tool, e.g. the PC-Tool with additional functions such as trend, etc.
In the VRD2(-L), it is possible to set the mode appropriately for the selected 0...10 V or 2...10 V
VAV-Universal
room temperature controller.
1)
Mode setting 0 ... 10 V / 2 ... 10 V
2)
See mode setting
3)
Devices manufactured before 8/2006 need a modified scale sticker
Electrical data
Nominal voltage
Power supply range
Power consumption
PP communication
Connection
Connection cable
Safety
Protection class
Degree of protection
EMC
Ambient temperature range
Non-operating temperature range
Moisture test
Dimensions
Weight
T4-ZEV • en • v1.3 • 09.2007 • Subject to changes
1)
2)
2) 3)
AC 24 V, 50/60 Hz, DC 24 V
AC 19.2 ... 28.8 V, DC 21.6 ... 26.4 V
1 W
DC 1.0/12.5 V max. DC 15 V
bidirectional 1200 baud
Screw terminals for 2 x 1.5 mm2
separate obtainable, see «Accessories» on page 4
III Safety extra-low voltage
IP42
CE according to 89/336/EEC
0 ... +50 °C
-20 ... +80 °C
According to EN 60730-1
See «Dimensions» on page 3
Approx. 500 g
ZEV
1 / 4
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