CBV-2U4-3T(-N) |
Installation Overview
©ABB 2022 All Rights Reserved.
Subject to change without notice
WWW.CYLON.COM
22
M
AN0
13
9
re
v
14
Output codes
By clicking into the field associated with each output, multiple options can be selected:
▪
DO-11
can be configured for first stage heat on/off control, PWM, or to open a tristate actuator.
▪
DO-12
can be configured for second stage heat on/off control, PWM, or to close a tristate actuator.
▪
DO-13
can be configured for third stage heat on/off control, PWM, parallel constant volume fan, or series
single speed fan.
▪
AO-14
can be configured for modulating heat control. By default, this will be first stage heat unless
otherwise specified under options.
▪
AO-15
can be configured for modulating heat control. By default, this will be second stage heat unless
otherwise specified under options. This output can also be configured for parallel variable speed fan,
or series variable speed fan.
OPTIONS
Defining baseboard heat
A variety of different options are available depending on the application. From the drop-down box select the
appropriate heating output as being baseboard heat. By designating one output as baseboard heat it is then
possible to select it as being first stage heat during unoccupied call for heat.
An example of this configuration is
DO-11
could be first stage electric heat in VAV box,
DO-12
can be second
stage electric, and
DO-13
could be a thermal valve controlling baseboard heat. During normal occupied
operation
DO-13
will be the last stage of heat to come on as the heating demand rises. However, by designating
DO-13
as baseboard heat it is possible to select only baseboard heat during unoccupied mode. This will
effectively make this output stage 1 heat during an unoccupied call for heat. This will prevent needing to run
the AHU associated with this VAV during an unoccupied call for heat.
Defining AOs and DOs heat stage sequence
With this option it is possible to assign AOs defined as heat to stage before DOs defined as heat. Conversely
the DOs can be configured to stage before the AOs. By default, this sequence is disabled and both AOs and
DOs will stage concurrently.
Defining AOs
By default, the AOs are configured as direct acting 0
…
10 Vdc. However, it is possible to define either/or
AO-14
and
AO-15
as being reverse acting 10
…
0 Vdc.
Depending on the actuator being controlled it’s
also possible to
change the voltage range for 2
…
10 Vdc or 10
…
2 Vdc for either AO output.
Setting DOs for reverse acting
In the “
IO_Config
”
NetLink
screen you will find the following points:
•
•
Setting the correct corresponding point(s) to
On
will reverse the action of that DO(s).
Input Configuration
The inputs should be configured using the
CXPro
ᴴᴰ
BACnet commissioning tool. If changing the configuration
in the field, use these values.
Summary of Contents for CBV-2U4-3T
Page 1: ... USER GUIDE MAN0139 rev 14 CBV 2U4 3T N ...
Page 75: ......