Installation Instructions: Air-Fi® Wireless Communications Interface (WCI)

Model Numbers

X13790901, X13790902, X13790903, X13790904, X13790941, X13790963, X13790964

Notes:

• A) Pollution Degree 2
• B) Impulse Voltage: 330V (PELV (Class 2) Input and Output)
• C) Software Class: Class A

Models X13790901, X13790902, X13790903, X13790904, and X13790963 are intended for installation in accordance with manufacturer instructions, NEC/CEC Part 1, and local authority jurisdiction. Suitable for plenum use.

Safety Warnings

WARNING: Only qualified personnel should install and service the equipment. Installation, startup, and servicing of HVAC equipment can be hazardous and requires specific knowledge and training. Improper installation, adjustment, or alteration by unqualified persons could result in death or serious injury. Observe all precautions in literature and on equipment tags.

Warnings, Cautions, and Notices

Read this manual thoroughly before operating or servicing. Safety advisories are provided throughout. Personal safety and proper operation depend on strict observance of precautions.

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. May also alert against unsafe practices.

NOTICE: Indicates a situation that could result in equipment or property-damage only accidents.

Important Environmental Concerns

Discusses the impact of certain man-made chemicals (CFCs, HCFCs) on the stratospheric ozone layer and Trane's advocacy for responsible refrigerant handling.

Important Responsible Refrigerant Practices

Emphasizes the importance of responsible refrigerant practices for the environment, customers, and the industry. Technicians must be certified. References US Federal Clean Air Act (Section 608) and potential state/municipal requirements.

Proper Field Wiring and Grounding Required!

WARNING: Failure to follow code could result in death or serious injury. All field wiring must be performed by qualified personnel. Improperly installed and grounded wiring poses FIRE and ELECTROCUTION hazards. Follow NEC and local/state/national electrical codes.

Personal Protective Equipment (PPE) Required!

WARNING: Failure to wear proper PPE can result in death or serious injury. Technicians must use PPE for electrical, mechanical, and chemical hazards as per manual, tags, and instructions. This includes cut-resistant gloves, safety glasses, hard hats, fall protection, electrical PPE, and arc flash clothing. Refer to SDS and OSHA guidelines. For hazardous chemicals, consult SDS and OSHA/GHS guidelines. For electrical hazards, use PPE per OSHA, NFPA 70E, or country-specific requirements before servicing. NEVER perform switching, disconnecting, or voltage testing without proper PPE and arc flash clothing. Ensure meters are properly rated.

Follow EHS Policies!

WARNING: Failure to follow instructions can result in death or serious injury. Trane personnel must follow company EHS policies (hot work, electrical, fall protection, lockout/tagout, refrigerant handling). Local regulations supersede if more stringent. Non-Trane personnel should always follow local regulations.

Copyright and Trademarks

This document is the property of Trane and may not be reproduced without written permission. Trane reserves the right to revise content without notice. All referenced trademarks belong to their respective owners.

Revision History

Updated model numbers and notes information on the front cover.

Set Addresses

For detailed information and procedures, refer to:

• Air-Fi® Wireless System Installation, Operation, and Maintenance (BAS SVX40*-EN)
• Air-Fi® Network Design Installation, Operation, and Maintenance (BAS SVX55*-EN)

Connecting the Wiring Harness to the WCI

Power OFF Device

WARNING: Hazardous Voltage! Failure to disconnect power before servicing could result in death or serious injury. Disconnect all electric power, including remote disconnects. Follow proper lockout/tagout procedures. Verify no power is present with a voltmeter.

Wire identification:

• Gray = LINK–
• Blue = LINK+
• Red = +24VDC/VAC
• Black = [Ground/Common]

Diagram Description: A diagram illustrates the wiring harness connections to the WCI, showing the color coding for LINK-, LINK+, +24VDC/VAC, and Ground/Common.

Connect WCI Wires to Controller

Use a PM014 with Tracer SC with 1 or more wireless networks, or Tracer SC+ when needed to stay within IMC power budget.

Wiring to IMC Terminals: Connect both 2-connector screw terminal blocks to either of the IMC terminals on the PM104.

Diagram Description: Multiple wiring diagrams illustrate connections between the WCI and various controllers and modules, including:

• WCI to PM014 (Tracer SC/SC+), showing connections to IMC-, IMC+, Ground, and +24VDC.
• WCI to Symbio™ 700 Odyssey™, showing connections to IMC-, IMC+, Common, 24VAC IN, LINK-, LINK+, and 24VAC.
• WCI to UC/Symbio Controller, showing connections to J1 (24VAC/DC GND, LINK+, LINK-).
• WCI to BCI-R (ReliaTel™, Voyager™, Precedent™) and BCI2-R (ReliaTel™, Voyager™, Precedent™), showing connections to MODBUS +/- and 24VAC +/-.
• WCI to BCI-I (IntelliPak/CSC), showing connections to J4 (LINK-, LINK+, +24Vdc) and J7 (various terminals including R, W1/O, G, W2, Y2, X2, T, COM (GND)).
• WCI to RTRM, showing connections to J15/J16 (LINK+, LINK-).
• WCI to Tracer® SC+/Symbio™ 800, showing connections to BI1, BI2, BI3, LINK, IMC, +24VDC, IMC.
• Diagrams also show various controller boards like RELAY BOARD, BCI2-R, BCI-I, and their respective terminals.

Power ON Device and Network Formation

Identifying the Network Coordinator (One per Network) and Initiating Network Formation

Scenario 1: Tracer® SC/SC+ is present when WCI is powered:

1. The WCI wired to Tracer SC/SC+ becomes the network coordinator.
2. Network formation is initiated, and the network automatically opens for 60 minutes.
3. LEDs on the coordinator illuminate as described in Table 1.

Scenario 2: No Tracer® SC/SC+ is present when WCI is powered:

1. Identify a centrally located WCI to be the network coordinator.
2. Manually open the network by pressing the START/JOIN button for 5 seconds on the chosen WCI.
3. The WCI becomes the network coordinator, and network formation is initiated.
4. Observe the LEDs on the network coordinator (see Table 1).

Diagram Description: A diagram shows a WCI with "Press START/JOIN for 5 seconds" indicated, leading to the WCI becoming a coordinator with NWK, CRD, and OPEN NET LEDs illuminated steadily. Another diagram shows multiple WCIs connecting to controllers, with the NWK LED illuminating on each WCI that joins the network.

The Network Forms: The NWK LED illuminates on every WCI that joins the network.

Notes:

• The network stays open for 1 hour. Each WCI joining restarts the timer. Press OPEN NET to re-open if the timer expires.
• The coordinator opens all WCIs in the network. A member WCI can only open itself for 10 minutes.

LED Identification and Interpretation

Table 1. LED identification and interpretation

^(a) LED flashes steadily (approx. 3 flashes per second) on WCIs built before 2019.

^(b) LED appears steady for WCIs built 2019 and after; may appear dim and flicker occasionally with data traffic.

^(c) LED is off for all WCIs.

^(d) If multiple conditions are present, priority is in the listed order.

Firmware Requirements for Devices in an Air-Fi® Wireless Network

This table lists the minimum firmware levels required for devices to participate in an Air-Fi Wireless network.

Table 2. Minimum firmware levels required

^(a) The WCS-SO/SCO2 sensor can be installed in another controller in the building and referenced to BCI-I/BCI2-I.

Note: If all devices cannot be powered on simultaneously, power them on in the following order: 1. All WCIs 2. All Tracer® SCs 3. All Controllers 4. All WCSs.