Optional Tracer Comm 3 Interface - Trane R Series Installation Operation & Maintenance

Optional Tracer Comm 3
Interface
This option allows the Tracer CH.530
controller to exchange information
(for example, operating set points
and Auto/Standby commands) with
a higher-level control device, such
as a Tracer Summit or a multiple-
machine controller. A shielded,
twisted-pair connection establishes
the bi-directional communications
link between the Tracer CH.530 and
the building automation system.
CAUTION
To prevent control malfunctions, do
not run low voltage wiring (<30 V) in
conduit with conductors carrying
more than 30 V.
Field wiring for the communication
link must meet the following
requirements:
1. All wiring must be in accordance
with the IEC and local codes.
2. Communication link wiring must
be shielded, twisted-pair wiring.
See the table below for wire size
selection:
Maximum Length of
Communication Wire
Wire Size
2.5 mm 1500 m
2
1.5 mm 600 m
2
1.0 mm 300 m
2
3. The maximum total wire length
for each communication link is
1500 m.
4. The communication link cannot
pass between buildings.
5. All units on the communication
link can be connected in a "daisy
chain" configuration.
RLC-SVX02G-E4
Installation – Electrical
Communication Link Connection
Procedure
1. Refer to the Tracer installation
literature to determine proper
communication-link termination
connections at the Tracer or
Summit panel.
2. Connect the shield of the
communication-link wiring to the
designated shield terminal at the
Tracer or Summit panel.
3. Install a Tracer Comm 3 Interface
LLID in the chiller control panel if
one has not already been
installed.
4. Connect the twisted-pair leads
from the BAS, or from the
previous unit on the "daisy
chain," to the proper terminals of
the Tracer Comm 3 Interface LLID
(A9). There is no polarity
requirement for this connection.
5. At the CH.530, the shield should
be cut and taped to prevent any
contact between the shield and
ground.
Note: On multiple-unit installations,
splice the shielding of the two
twisted-pair wires coming into each
unit in the "daisy chain" system.
Tape the spliced connections to
prevent any contact between the
shield and ground. At the last unit in
the chain, the shield should be cut
and taped .
6. Connect TechView to the Tracer
CH.530 controller.
7. Look at the Feature tab in
Configuration View-Custom Tab
in TechView and verify that the
"REM – Remote Interface" digit of
the chiller's model number has
been configured as "C - Tracer
Comm 3 Interface." If the Tracer
Comm 3 Interface option is not
selected, select it, select the Load
Configuration button at the
bottom of the screen, and go into
Binding View and make sure the
Comm 3 Interface LLID is bound
and communicating properly.
8. Look at the Configuration View in
TechView and verify that the
Comm 3 ICS address is set
correctly. The Comm 3 ICS
address setting can be found
under the Custom tab. This
selection will only appear under
the Custom tab in the
Configuration View if the Comm 3
Interface LLID has been correctly
installed in step five above.
9. Go to the Unit View in TechView
and select the "Auto-Remote"
radio button. This will give set
point priority to the BAS that is
connected to the unit.
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