Task 1: Remove The Failed Wci; Task 2: Install The New Wci - Trane Air-Fi WCS-SB Installation, Operation And Maintenance Manual

Task 1: Remove the failed WCI

Complete the following tasks to replace a failed WCI.
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.
1. Remove power from the controller that has the failed WCI wired to it.
2. Remove the WCI cover by firmly pressing the thumb tab at the bottom of the cover and pulling the
3. Detach the 4-connector screw terminal block on the wiring harness from the receptacle on the WCI

Task 2: Install the new WCI

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.
Note: If a diagnostic occurs, an error code appears at the bottom center of the WCS display. For an
New member (non-coordinator) WCI
1. Set (or verify if pre-addressed) the rotary address switches on the new WCI.
2. Attach the terminal block on the wiring harness to the receptacle on the new WCI and route the
3. Restore power to the controller that the WCI is installed on. Use Tracer TU to open the network
New coordinator WCI when Tracer SC is present
1. Set (or verify if pre-addressed) the rotary address switches on the new WCI.
2. Attach the terminal block on the wiring harness to the receptacle on the new WCI and route the
3. Using a USB cable, connect Tracer TU to another WCI on the network and disband the network.
4. If a Tracer SC is present on the network, restore power to the Tracer SC. The network will re-form
New coordinator WCI when no Tracer SC is present
1. Set (or verify if pre-addressed) the rotary address switches on the new WCI.
2. Attach the terminal block on the wiring harness to the receptacle on the new WCI and route the
3. Using a USB cable, connect Tracer TU to another WCI on the network and disband the network.
4. Restore power to the controller on which the WCI is installed.
BAS-SVX40K-EN
cover away from the back plate.
Note: If present, remove the security screw before removing the cover.
and remove the WCI.
explanation of error codes, see
wires as before (through either the back plate or the bottom exit port).
(Tools >Wireless>Open Network) or press the OPEN NET button when connected to the
coordinator or to a WCI that is already a member of the network. The new WCI should find the
network and join it.
wires as before (through either the back plate or the bottom exit port).
(See "Disbanding a Network," p.
itself.
wires as before (through either the back plate or the bottom exit port).
(See "Disbanding a Network," p.
Troubleshooting and Maintenance
WARNING
WARNING
"Sensor Does Not Communicate with WCI ," p.
69.)
69.)
71.
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