16
Fig. 15 — VAV-RTU Open SW3 Dip Switch Settings
Fig. 16 — VAV-RTU Open Address Switches Shield
Fig. 17 — Example — Simple Network
A VAV Master can have a maximum of 63 slave zone controllers
reporting to it. An MS/TP network is limited to a maximum of 60
controllers, but a VAV Master can have controllers from other net
-
works as slaves.
A linked VAV system can be as simple as a single MS/TP network
with a VAV Master and slaves, or it can be as complex as multiple
MS/TP networks with VAV sub-masters and slaves on other net
-
works. See the following example and Appendix B for configur
-
ing linkage in VAV zone controllers.
EXAMPLE: A simple network. The VAV Master exchanges data
between the slave controllers and the AHU controller. The linked
controllers on an MS/TP network must be sequentially addressed,
and the VAV Master must have the highest address.
Fig. 18 — Network Wiring
I-VU BUILDING AUTOMATION SYSTEM
i-Vu is a Carrier front-end and Building Automation System
(BAS). It is a web based network system that uses a native
BACnet over MS/TP communication protocol. The speed of the
network can range from 9600 to 76,800 baud. Refer to i-Vu litera
-
ture for more information on i-Vu.
LOCAL ACCESS
Wall Mounted System Touch
The System Touch (SYT1-4-CAR) is a wall mounted interface
used to connect to the VAV-RTU Open or VAV Zone to access the
control information, read sensor values, and maintenance. This is
an accessory interface that does not come with the VAV-RTU
Open controller. You wire the System Touch to the VAV-RTU
Open or VAV Zone BACnet MS/TP network wiring connection.
There are 2 password protected levels in the display (User and
Admin). See the Equipment Touch Installation and Setup Guide
for more information. See Appendix A for navigation and screen
content.
Field Assistant
Field Assistant is a computer program included with the purchase
of the Tech Tool Kit (USB-TKIT). This is a field Tech Tool to set-
up, service, or download application software to the VAV-RTU
Open controller and includes a USB Link Cable. The link cable
connects a USB port to the J12 local access port. The Field Assis
-
tant’s menu structure is similar and functions the same as i-Vu. See
Fig. 19.
SW3 Protocol Selection
PROTOCOL
DS8
DS7
DS6
DS5
DS4
DS3
DS2
DS1
BACnet MS/TP (Master)
Unused
OFF
OFF
OFF
ON
OFF
Select Baud Select Baud
NOTE:
DS = Dip Switch
BACnet MS/TP SW3 example shown
Baud Rate Selections
BAUD RATE
DS2
DS1
9,600
OFF
OFF
19,200
ON
OFF
38,400
OFF
ON
76,800
ON
ON
UNUSED
(OFF)
(ON)
COMM
OPTION
PORT
SET TO MSTP
(MASTER)
SET TO
38.4k
BAUD
PROTOCOL SELECTOR DIP SWITCHES
8
7
6
5
4
3
2
1
O
N
0
1
2
3
4
5
6
7
8
9
MSB
LSB
SW1
SW2
0
1
2
3
4
5
6
7
8
9
Address
Network #:
16116
Slaves
1
2
3
4
5
6
7
8
VAV
Master
RTU
Shield
Summary of Contents for 48LCB07
Page 4: ...4 Fig 2 VAV RTU Open Control Module ...
Page 8: ...8 Fig 5 VAV RTU Open Control Wiring Diagram 48LC B07 ...
Page 9: ...9 Fig 6 VAV RTU Open Control Wiring Diagram 48LC B08 12 ...
Page 10: ...10 Fig 7 VAV RTU Open Control Wiring Diagram 48LC B14 26 ...
Page 11: ...11 Fig 8 VAV RTU Open Control Wiring Diagram 50LC B07 ...
Page 12: ...12 Fig 9 VAV RTU Open Control Wiring Diagram 50LC B08 12 ...
Page 13: ...13 Fig 10 VAV RTU Open Control Wiring Diagram 50LC B14 26 ...
Page 55: ......