Trane BACnet C175218460010 User manual

BACnet®Communication
Interface for IntelliPak (BCI-I)
for CSC Ordering Number: C175218460010
Installation Guide
September 2023 RT-SVN13F-EN
Used with: S_WF 20–110 Ton
S_WG 20–35 Ton
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of
heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training.
Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury.
When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are
attached to the equipment.

©2023 Trane RT-SVN13F-EN
Introduction
Read this manual thoroughly before operating or servicing this
unit.
Warnings, Cautions, and Notices
Safety advisories appear throughout this manual as required.
Your personal safety and the proper operation of this machine
depend upon the strict observance of these precautions.
Important Environmental Concerns
Scientific research has shown that certain man-made
chemicals can affect the earth’s naturally occurring
stratospheric ozone layer when released to the atmosphere. In
particular, several of the identified chemicals that may affect
the ozone layer are refrigerants that contain Chlorine, Fluorine
and Carbon (CFCs) and those containing Hydrogen, Chlorine,
Fluorine and Carbon (HCFCs). Not all refrigerants containing
these compounds have the same potential impact to the
environment. Trane advocates the responsible handling of all
refrigerants.
Important Responsible Refrigerant
Practices
Trane believes that responsible refrigerant practices are
important to the environment, our customers, and the air
conditioning industry. All technicians who handle refrigerants
must be certified according to local rules. For the USA, the
Federal Clean AirAct (Section 608) sets forth the requirements
for handling, reclaiming, recovering and recycling of certain
refrigerants and the equipment that is used in these service
procedures. In addition, some states or municipalities may
have additional requirements that must also be adhered to for
responsible management of refrigerants. Know the applicable
laws and follow them.
The three types of advisories are defined as follows:
WARNING Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
CAUTION Indicates a potentially hazardous
situation which, if not avoided, could
result in minor or moderate injury. It could
also be used to alert against unsafe
practices.
NOTICE Indicates a situation that could result in
equipment or property-damage only
accidents.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state/national electrical codes.
WARNING
Personal Protective Equipment (PPE)
Required!
Failure to wear proper PPE for the job being undertaken
could result in death or serious injury. Technicians, in
order to protect themselves from potential electrical,
mechanical, and chemical hazards, MUST follow
precautions in this manual and on the tags, stickers,
and labels, as well as the instructions below:
• Before installing/servicing this unit, technicians
MUST put on all PPE required for the work being
undertaken (Examples; cut resistant gloves/sleeves,
butyl gloves, safety glasses, hard hat/bump cap, fall
protection, electrical PPE and arc flash clothing).
ALWAYS refer to appropriate Safety Data Sheets
(SDS) and OSHA guidelines for proper PPE.
• When working with or around hazardous chemicals,
ALWAYS refer to the appropriate SDS and OSHA/GHS
(Global Harmonized System of Classification and
Labeling of Chemicals) guidelines for information on
allowable personal exposure levels, proper
respiratory protection and handling instructions.
• If there is a risk of energized electrical contact, arc, or
flash, technicians MUST put on all PPE in accordance
with OSHA, NFPA 70E, or other country-specific
requirements for arc flash protection, PRIOR to
servicing the unit. NEVER PERFORM ANY
SWITCHING, DISCONNECTING, OR VOLTAGE
TESTING WITHOUT PROPER ELECTRICAL PPE AND
ARC FLASH CLOTHING. ENSURE ELECTRICAL
METERS AND EQUIPMENT ARE PROPERLY RATED
FOR INTENDED VOLTAGE.

Introduction
RT-SVN13F-EN 3
Copyright
This document and the information in it are the property of
Trane, and may not be used or reproduced in whole or in part
without written permission. Trane reserves the right to revise
this publication at any time, and to make changes to its content
without obligation to notify any person of such revision or
change.
Trademarks
All trademarks referenced in this document are the trademarks
of their respective owners.
Revision History
Removed IPAK model information in the document.
WARNING
Follow EHS Policies!
Failure to follow instructions below could result in
death or serious injury.
• All Trane personnel must follow the company’s
Environmental, Health and Safety (EHS) policies
when performing work such as hot work, electrical,
fall protection, lockout/tagout, refrigerant handling,
etc. Where local regulations are more stringent than
these policies, those regulations supersede these
policies.
• Non-Trane personnel should always follow local
regulations.

4RT-SVN13F-EN
Table of Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
BACnet®Protocol . . . . . . . . . . . . . . . . . . . . . . . . 5
BACnet Testing Laboratory (BTL) Certification 5
Field Kit Parts, Tools and Requirements, and
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Field Kit Parts . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Tools and Requirements . . . . . . . . . . . . . . . . . 6
Specifications and Dimensions . . . . . . . . . . . . 6
Backward Compatibility . . . . . . . . . . . . . . . . . . . . 7
Mounting and Installing CSC Modules . . . . . . . 8
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CSC (S*WF, S*RF) Module Installation . . . . . 8
CSC (S*WG, S*RG) Module Installation . . . 10
Mounting or Removing/Repositioning the BCI-I
Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Generic BCI Wiring Diagram . . . . . . . . . . . . . . 13
Wire Harness Installation for CSC . . . . . . . . . . 14
Wiring Harness Installation for CSC (S*WF,
S*RF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Wiring Harness Installation for CSC (S*WG,
S*RG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Additional Resources . . . . . . . . . . . . . . . . . . . . . 18

RT-SVN13F-EN 5
Overview
This installation document contains information about the
BACnet®Communication Interface for Commercial Self-
Contained (CSC) controllers. This controller allows CSC units
the capability to:
• Communicate on an open standard, interoperable
protocols used in Building Automation and Control
Networks (BACnet).
• Provide customers the flexibility to choose the best
possible vendor for their building subsystems.
• Easily incorporate Trane products into legacy systems in
existing buildings.
Important: This controller is intended to be installed by a
qualified system integration technician who is
properly trained and experienced in BACnet.
The BCI-I controller is available as a factory-installed option or
field-installed kit. The features and functions described in this
manual apply to either option. This following sections describe:
• A brief overview of the BACnet protocol.
• Field kit inspection, tool requirements, and specifications.
• Backward compatibility.
• Module mounting and installation.
• Wiring harness installation.

6RT-SVN13F-EN
BACnet®Protocol
The Building Automation and Control Network (BACnet and
ANSI/ASHRAE Standard 135-2004) protocol is a standard that
allows building automation systems or components from
different manufacturers to share information and control
functions. BACnet provides building owners the capability to
connect various types of building control systems or
subsystems together for a variety of reasons. In addition,
multiple vendors can use this protocol to share information for
monitoring and supervisory control between systems and
devices in a multi-vendor interconnected system.
The BACnet protocol identifies standard objects (data points)
called BACnet objects. Each object has a defined list of
properties that provide information about that object. BACnet
also defines a number of standard application services that are
used to access data and manipulate these objects and
provides a client/server communication between devices. For
more information on BACnet protocol, refer to “Additional
Resources,” p. 19.
BACnet Testing Laboratory (BTL)
Certification
The BCI-I supports the BACnet communication protocol and
has been designed to meet the requirements of the
application-specific control profile. For more details, refer to
the BTL web site at www.bacnetassociation.org.

RT-SVN13F-EN 7
Field Kit Parts, Tools and Requirements, and
Specifications
Field Kit Parts
Before installing the BCI-I kit, open the box and verify that the
following parts are enclosed:
Important: Contact the Trane Parts Center nearest your
area should there be any damaged or missing
components.
Note: One copy of the appropriate service literature ships
inside the control panel of each unit.
Tools and Requirements
• 11/64 inch drill bit
• Drill
• Phillips #1 screwdriver
• 5/16 inch hex-socket screwdriver
• Small flat-bladed screwdriver
• For reconfiguration instructions, refer to the latest edition of
the programming and troubleshooting guides for constant
volume units or variable air volume units.
Specifications and Dimensions
Dimensions
Height: 4.00 inches (101.6 mm)
Width: 5.65 inches (143.6 mm)
Depth: 2.17 inches (55 mm)
Storage Environment
-44°C to 95°C (-48°F to 203°F)
5% to 95% relative humidity non-condensing
Operating Environment
-40° to 70°C (-40° to 158°F)
5% to 95% relative humidity non-condensing
Power requirements
50 or 60 HZ
24 Vac ±15% nominal, 6 VA, Class 2 (Maximum VA = 12VA)
24 Vdc ±15% nominal, maximum load 90 mA
Mounting Weight of Controller
Mounting surface must support 0.80 lb. (0.364 kg)
UL Approval
UL unlisted component
Environmental Rating of Enclosure
NEMA 1
Altitude
6,500 ft maximum (1,981 m)
Installation
UL 840: Category 3
Pollution
UL 840: Degree 2
Qty Description
1 Green ground wire
1 2-wire harness
1 4-wire harness
2 #6, Type A washers
1 BCI-I Integration Guide, ACC-SVP01*-EN
2 DIN rail end stops
6 #6-32 x 3/8-in long mounting screws
2 #10-32 x 3/8-in DIN rail mounting screws
1 Sheet metal mounting bracket
1 7.5-in DIN rail
Qty Description

8RT-SVN13F-EN
Backward Compatibility
CSC units manufactured after October 2009 are shipped with
the correct software versions. For CSC units manufactured
before 2009, the HI will report the wrong device/COMM
protocol on the Revision Report screen on the configuration
menu. The units will report COMM5 instead of BACnet® on the
BAS communications Software Revision Number screen.

RT-SVN13F-EN 9
Mounting and Installing CSC Modules
Mounting
Use the model number on the unit nameplate and the model
number description in the unit IOM (or the wiring diagrams
located on the control panel door) to determine unit size.
CSC (S*WF, S*RF) Module
Installation
1. Disconnect all power from the CSC unit.
Note: Units without a Ventilation Override Module (VOM)
(1U37), go to Step 5.
2. Swing out the Human Interface (HI) to get access to the
VOM module.
3. Disconnect the wire harnesses from the VOM by
unplugging the connectors. Remove the two screws
securing the VOM to the mounting panel.
4. Reinstall the VOM in the lower right module position on the
mounting panel. Reinstall the two screws to secure the
VOM to the panel and reinstall the wiring harness
connectors to the VOM.
5. Position the DIN rail from the kit approximately as shown
on the panel. Position the rail as close to the horseshoe
shaped module mounting feature as possible.
Note: Abut the DIN rail up to the horseshoe mounting feature
or the BCI-I module will not fit on to the panel.
6. Using the DIN rail, mark positions for two screw holes and
then drill the marked holes using a 11/64 inch drill bit.
7. Mount the DIN rail using two #10-32 x 3/8 inch screws from
the kit.
8. Using two DIN rail end stops from the kit, install the BCI-I
module onto the DIN rail.
Tip: For ease of installation, install the bottom end stop first
followed by the BCI-I module, and then the upper end
stop.
(Refer to the “Mounting or Removing/Repositioning the BCI-I
Controller,” p. 13).
WARNING
Live Electrical Components!
Failure to follow all electrical safety precautions when
exposed to live electrical components could result in
death or serious injury.
When it is necessary to work with live electrical
components, have a qualified licensed electrician or
other individual who has been properly trained in
handling live electrical components perform these
tasks.
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is present
with a voltmeter.

Mounting and Installing CSC Modules
10 RT-SVN13F-EN
Figure 1. S**F VOM module relocation
Figure 2. S**F BCI-I module installation

Mounting and Installing CSC Modules
RT-SVN13F-EN 11
CSC (S*WG, S*RG) Module
Installation
1. Disconnect all power from the CSC unit.
Note: Units without a Ventilation Override Module (VOM)
(1U37), go to Step 4.
2. Disconnect the wire harnesses from the VOM by
unplugging the connectors. Remove the two screws
securing the VOM to the mounting panel.
3. Reinstall the VOM in the lower left module position on the
mounting panel. Reinstall the two screws to secure the
VOM to the panel and reinstall the wiring harness
connectors on the VOM.
4. Position the DIN rail from the kit approximately as shown
on the panel. Position the rail as close to the horseshoe-
shaped module mounting feature as possible.
Note: Abut the DIN rail up to the horseshoe mounting feature
or the BCI-I module will not fit on to the panel.
5. Using the DIN rail, mark positions for two screw holes and
then drill the marked holes using a
11/64 inch drill bit.
6. Mount the DIN rail using two #10-32 screws from the kit.
7. Using two (2) DIN rail end stops from the kit, install the
BCI-I module on to the DIN rail. (Refer to the section,
“Mounting or Removing/Repositioning the BCI-I
Controller,” p. 13.).
Figure 3. S**G VOM module relocation

Mounting and Installing CSC Modules
12 RT-SVN13F-EN
Figure 4. S**G BCI-I module installation

RT-SVN13F-EN 13
Mounting or Removing/Repositioning the BCI-I
Controller
To mount or remove/reposition the controller from the DIN rail,
follow the illustrated instructions below.
To mount device:
1. Hook device over top of DIN rail.
2. Gently push on lower half of device in the direction of arrow
until the release clip clicks into place.
To remove or reposition device:
1. Disconnect all connectors before removing or
repositioning.
2. Insert screwdriver into slotted release clip and gently pry
upward on the clip with the screwdriver.
3. While holding tension on the clip, lift device upward to
remove or reposition.
4. If repositioned, push on the device until the release clip
clicks back into place to secure the device to DIN rail.
NOTICE
Enclosure Damage!
Failure to follow instructions below could result in
damage to the plastic enclosure.
Do not use excessive force to install the controller on
the DIN rail. If using another manufacturer’s DIN rail,
follow their recommended installation.
Figure 1. DIN rail mounting/removal
Pry upward
Slotted release clip shown from backside

14 RT-SVN13F-EN
Generic BCI Wiring Diagram
The figure and table below provide a generic BCI wiring
diagram reference. Use letters A-F shown in the figure below
to determine connection information according to product line.
Figure 1.
Table 1.
Item
Commercial Self-Contained
KIT Wire Name
Terminal
Block Standard Wire Name
A24VAC+1TB4-9 41AB
B 24V-CG 1TB4-19 254E
C IMC+ 1TB12-A 283N
D IMC- 1TB12-C 284N
E LINK+ 1TB8-53 281B
F LINK- 1TB8-4 282B
G GND ** **
Note: **Self-Contained units already have the 24 Vac secondary grounded. No
additional ground wire is required.

RT-SVN13F-EN 15
Wire Harness Installation for CSC
It is recommended to read the following warnings and notice
before proceeding with the wire harness installation for the
IntelliPak I and II and CSC.
Important: On units equipped with older/non-standard
variable frequency drives (VFD), excessive
electrical noise may cause data loss. If the BCI
drops data, move the green ground wire (GND)
closer to the BCI-I by moving the GND wire fork
terminal to a nearby fastener such as one of the
BCI-I DIN rail mounting screws. Next, cut off
the 1/4 inch spade connector and excess GND
wire length not needed to reach the
BCI-I. Finally, strip and insert the GND wire into
the 24 Vac terminal connector corresponding
with a BCI-I chassis ground symbol (next to
wire 24 Vac+).
Figure 1. Connecting 24 Vac transformer and ground
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury.
All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state/national electrical codes.
NOTICE
Equipment Damage!
To prevent damage to other control modules, ensure
the correct transformer is grounded. The user must
connect the chassis ground to the 24 Vac transformer
used by BCI-I.

Wire Harness Installation for CSC
16 RT-SVN13F-EN
Wiring Harness Installation for CSC (S*WF, S*RF)
1. Remove the 2-wire and 4-wire harnesses from the kit.
2. Connect each plug to its appropriate receptacle on the BCI-
I Module so that the wire numbers match the legends on
the BCI For example, wire LINK+ to LINK+ on the module
or wire the 24VAC+ to 24VAC on the module.
3. Using the IPC harness, connect wire IMC+ to 1TB12-A.
Connect wire IMC- to 1TB12-C. (Refer to Figure 2, p. 17
for SXXF terminal block locations in the control panel.).
Note: Verify that the wires on 1TB12-A are labeled with
wire number 283 and the wires on 1TB12-C are
labeled with wire number 284.
4. Using the 24 Vac wires, connect wire 24VAC+ to 1TB4-9.
Connect wire 24V-CG to 1TB4-19.
5. Using COMM Link wires, connect wire LINK+ to 1TB8-53.
Connect wire LINK- to 1TB8-54.
6. The green wire marked GND in the harness is not required
to be connected.
7. Secure the harness wires within the control panel to the
existing wire bundles. Coil and secure any excess wire.
Note: For the BCI-I external connections, refer the Field
Connection Wiring Diagram for the CSC unit. For
detailed information about BACnet®termination for
BACnet links, refer to the Unit Controller Wiring for the
Tracer SC™ System Controller Wiring Guide, BAS-
SVN03*-EN.
8. Restore power to the unit.
Important: Before operating the unit, the operating
parameters must be re-programmed to include
the BCI-I Module. (For reconfiguration
instructions, refer to the latest edition of the
programming and troubleshooting guides for
constant volume units or variable air volume
units.)

Wire Harness Installation for CSC
RT-SVN13F-EN 17
Figure 2. S**F Terminal Block Locations

Wire Harness Installation for CSC
18 RT-SVN13F-EN
Wiring Harness Installation for CSC (S*WG, S*RG)
1. Remove the 2-wire and 4-wire harnesses from the kit.
2. Connect each plug to its appropriate receptacle on the BCI-
I Module so that the wire numbers match the legends on
the BCI. For example, wire the LINK+ to LINK+ on the
module and the 24VAC+ to 24VAC on the module, etc).
3. Using the IPC harness, connect wire IMC+ to 1TB12-A.
Connect wire IMC- to 1TB12-C. (Refer to Figure 3, p. 18
for terminal block locations in the control panel.).
Note: Verify that the wires on 1TB12-A are labeled with
wire number 283 and the wires on 1TB12-C are
labeled with wire number 284.
4. Using the 24 Vac wires, connect wire 24VAC+ to 1TB4-9.
Connect wire 24V-CG to 1TB4-19.
5. Using the COMM Link wires, connect wire LINK+ to 1TB8-
53. Connect wire LINK- to 1TB8-54.
6. The green wire marked GND in the harness is not required
to be connected.
7. Secure the harness wires within the control panel to the
existing wire bundles. Coil and secure any excess wire.
Note: For the BCI-I external connections, refer the Field
Connection Wiring Diagram for the CSC unit. For
detailed information about BACnet®termination for
BACnet links, refer to the Unit Controller Wiring for the
Tracer SC™ System Controller Wiring Guide, BAS-
SVN03*-EN.
8. Restore power to the unit.
Important: Before operating the unit, the operating
parameters must be re-programmed to include
the BCI-I Module. (For reconfiguration
instructions, refer to the latest edition of the
programming and troubleshooting guides for
constant volume units or variable air volume
units.)
Figure 3. S**G Terminal Block Locations

RT-SVN13F-EN 19
Additional Resources
Use the following documents and links as additional
resources:
•BACnet®Communication Interface (BCI-I) Integration
Guide (ACC-SVP01*-EN).
• Unit Controller Wiring for the Tracer SC™ System
Controller Wiring Guide (BAS-SVN03*-EN).

©2023 Trane
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are committed to using environmentally conscious print practices.
Trane - by Trane Technologies (NYSE: TT), a global climate innovator - creates comfortable, energy
efficient indoor environments for commercial and residential applications. For more information,
please visit trane.com or tranetechnologies.com.
RT-SVN13F-EN 30 Sep 2023
Supersedes RT-SVN13E-EN (Apr 2020)