CBV-2U4-3T(-N) |
Installation Overview
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In the default
CBV
Strategy, the
Local OCC Sensor
setting expects the UI to be normally closed, i.e. when the
sensor reads
10 V DC
the reading is interpreted as
unoccupied
.
When the sensor reads
0 V DC
and the box is otherwise commanded off the box will go occupied. It will revert
to an
unoccupied
state after
30
seconds of reading
10 V DC
from the sensor.
The threshold for
UI-4
to register occupancy as
ON
is
2 V DC
and the threshold for an
OFF
state is
4 V DC
.
To set up
UI-4
as a spare digital input:
1.
open
CXpro
ᴴᴰ
,
2.
Right-click on the
Site
or
Network
containing the
CBV
and select
Commission BACnet Devices
.
3.
In the
Commission BACnet Devices
dialog, click on the Inputs column of the relevant
CBV
:
This opens the
VAV Configuration
dialog:
Choose the option
Spare Digital Input
.
The digital point in the
Strategy
that will determine a digital status from
UI-4
Strategy
to be normally closed, i.e. when
UI-4
detects
10 V
DC
the point will report an
OFF
value.
When the sensor reads
0 V DC
the point will read an
ON
value.
The threshold for
UI-4
to register the
Spare Digital Input
as
ON
is
2 V DC
and the threshold for an
OFF
state is
4 V
DC
.
Summary of Contents for CBV-2U4-3T
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