TRANE CM3I Tracer Communication Module Instruction Manual

CM3I Tracer Communication Module

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Specifications

• Storage Temperature: -40°F to 185°F

• Relative Humidity: 5% to 95%
  non-condensing

• Operation Temperature: 32°F to 122°F

• Power: AC 100-240V, 50/60Hz

• Mounting Weight of Module: 0.5 lbs

• Environmental Rating (Enclosure): NEMA 1 U.L.
  840: Category 3 U.L. 840: Degree 2

Product Usage Instructions

Installation Instructions

Only qualified personnel should install and service the
equipment. Follow all precautions mentioned in the literature and
on equipment tags, stickers, and labels.

Required Tools for Mounting and Wiring

A 1/8-inch (3 mm) flat-bladed screwdriver is required for
functions like removing or repositioning the module on DIN
rail.

Storage and Operating Environment Specifications

Ensure the storage and operating environment temperatures are
within specified ranges. Proper power input is required for
operation.

FAQ

Q: Who should perform the installation of this equipment?

A: Only qualified personnel should install and service the
equipment to ensure safety and proper functioning.

Q: What tools are needed for mounting and wiring?

A: A 1/8-inch (3 mm) flat-bladed screwdriver is required for
tasks such as removing or repositioning the module on DIN rail.

Q: What are the environmental ratings of the enclosure?

A: The environmental rating of the enclosure is NEMA 1 U.L. 840:
Category 3 U.L. 840: Degree 2, ensuring certain protection
levels.

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Installation Instructions
Tracer® Communication Module (CM3I)

Ordering Numbers:

X13651809001 Module Communications to USB Isolated COMM3

X13651812001

KIT Communications USB to Isolated COMM3 (module, USB cable, chassis wire along with Phoenix connector)

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.

April 2024

BAS-SVN236A-EN
©2024 Trane

4 Required Tools for Mounting and Wiring
A 1/8-inch (3 mm), flat-bladed screwdriver is required to perform functions such as removing or repositioning the module on DIN rail.

Storage and Operating Environment Specifications

Table 1. Storage and operating environment specifications

Storage
Temperature
Relative Humidity
Operation
Temperature
Power
Mounting Weight of Module
Environmental Rating (Enclosure)
Installation
Pollution
Agency Compliance
· UL-916 · UL94-5VA Flammability · CE Marked per EN61326-1 · FCC Part 15, Subpart B, Class B Limit · CUL C22.2-signal devices · AS/NZS CISPR 32:2015 Class B Limit · VCCI-CISPR 32:2016: Class B Limit · CAN ICES-003(B)/NMB-003(B)

-67°F to 203°F (-55°C to 95°C) 5% to 95% (noncondensing)
-40°F to 158°F (-40°C to 70°C) USB 5V, 225mA, PELV Class 2 Mounting surface must support; 0.17 lb (0.077 kg)
NEMA 1 U.L. 840: Category 3 U.L. 840: Degree 2

1
Warnings, Cautions, and Notices
Read this manual thoroughly before operating or servicing this unit. 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.

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.

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 Air Act (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.

2
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 countryspecific 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.

3
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.
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.
General Information
The Tracer® CM3I (Isolated Comm3) module provides the communication interface between the Tracer® SC+ and Isolated Comm3 devices. The CM3I module can be connected to any Synchrony USB port.
Packaged Contents
· Tracer® Communication Module (CM3I) · USB Cable · Phoenix Connector with Chassis Ground Wire · Installation Instructions Important: Visually inspect contents for obvious defects or damage. All components have been thoroughly inspected before leaving the factory. Any claims for damage incurred during shipment should be filed immediately with the carrier.

5
CM3I Dimensions
Figure 1. CM3I dimensions
35.6 mm (1.40 in.) * (See DIN Standard)
103.0 mm (4.05 in.)

6
Mounting or Removing the CM3I
To mount or remove the CM3I from DIN rail, follow the illustrated instructions below. Figure 2. Mounting or removing CM3I from DIN
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.
103.0 mm (4.05 in.)

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 screwdriver to disengage the clip.
3. While holding tension on the clip, rotate the device away from the DIN rail 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.

• DIN Standard 43 880, Built-in Equipment for Electrical Installations, Overall Dimensions, and Related Mounting Dimensions.

Important: Follow recommended installation procedures if using other manufacturers DIN rails and enclosures.

8
CM3I Module Installation Guidelines and General Information
Installation Environment
Install the CM3I in a location that is: · Protected from weather elements · Restricted from public access to minimize tampering and vandalism · Near the SC+ controller to reduce wire usage · Easily accessible by service technicians
Installation Instructions
1. Connect the USB-C end of the cable to the CM3I module. 2. Connect the USB-A end of the cable to a USB port on the controller.
Important: · Route the USB cable such that it does not get damaged by panel doors or similar obstructions. Cables that are severely kinked, cut, or otherwise damaged should be replaced, even if they appear to be in working order. · Do not route the USB cable in close proximity with electrically noisy cables such as AC power (24, 120, 240 VAC), or wires that are switched by relays or contactors. Maintain a minimum distance of 150 mm between the USB cable and these types of cables and wires.
3. Mount on DIN rail horizontally or vertically (allow for proper ventilation clearance).

9
Figure 3. CM3I module connection with Tracer® SC+

10
Figure 4. CM3I network wiring details

Important: Chassis ground must be connected to ground terminal of the Tracer SC+ controller.

11
Isolated Comm3 Device Network Wiring Configurations
To confirm proper network communication, the selection of the appropriate cable and length limitations must be considered. The maximum length of an 18 AWG network wire is 4,000 feet. The maximum length of a 22 AWG network wire is 2,000 feet. Running wire longer than recommended may result in communication issues.
Note: Do not mix isolated and non-isolated device types on a single link. 1. Attach the communication wire between two adjacent devices on the link and
verify that polarity of the wires is maintained. 2. At each unit controller, join the shield wires together and insulate the
connection with electrical tape to prevent accidental shorting of the wire. 3. Repeat Step 1 and Step 2 for each unit controller on the link.
Note: For more information about the specific unit controller you are wiring, see the installation guide for the specific controller. Follow these steps to connect communication wiring as shown in Figure 4, p. 2.
AC Power Warnings, Cautions, and Notices
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.
WARNING Proper Ground Connection Required!
Failure to follow instructions below could result in death or serious injury. After installation, ensure that the 24 Vac transformer is grounded through the controller. Measure the voltage between chassis ground and any ground terminal on the controller. Expected result: Vac <4.0 volt.

12
NOTICE Equipment Damage!
Failure to follow instructions below could result in damage to the controller, power transformer, or input/output devices due to inadvertent connections to power circuits. Remove power to the controller before making input/output connections.
Connecting, Addressing, and Discovering the CM3I
Figure 5. CM3I LEDs

13
Power up the Tracer SC+ controller. The transmitting (TX) and receiving (RX) LEDs blink when communication occurs between the devices. Note the following LED activities on the front of the CM3I.
Marquee LED · Green – If powered, application is running, no faults or alarms. · Solid red – Low power, malfunction or no application, processor not running. · Sequencing when powered – Red and then to green.
Isolated Comm3 TX and RX LED
When Isolated Comm 3 device connection is established: · TX LED – Blinks at the data transfer rate when the unit transfers data to other devices on the link. Regardless of connectivity, this LED constantly blinks as it continually looks for devices to communicate with. · RX LED – Blinks at the data transfer rate when the unit receives data from other devices on the link.
If the LEDs are not lit: · Determine if an Isolated Comm3 device is attempting to talk to a controller or if it is capable of talking to the controller. · Determine if the communication status shows down all the time. · Check polarity.

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.
Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice. We are committed to using environmentally conscious print practices.

BAS-SVN236A-EN 02 Apr 2024 (NEW)

©2024 Trane

References

• Trane Heating & Air Conditioning

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