Changing A Zigbee Channel; Multiple Uses - Trane Air-Fi WCS-SB Installation, Operation And Maintenance Manual

Figure 75. The relationship between Wi-Fi and Zigbee channels in the 2.4 GHz spectrum

Changing a Zigbee channel

Before changing a channel, make sure the Air-Fi network is properly designed with centrally located
coordinator and all devices within range and awareness of any obstacles that may affect the signal.
Most often, a poor performing network can be traced back to a network that violates some of the
network design rules. If a channel change is necessary, there are two ways to accomplish this. The first
way is physically changing the NET address on each WCI and sensor in the network. The second way is
by using Tracer TU to send a channel change request.
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•
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Table 15. WCI NET rotary address and corresponding default zigbee channel

Multiple Uses

This tool was primarily designed to be used for troubleshooting possible interference issues that can
cause Air-Fi performance to suffer. The Channel Quality Scan tool can be used along with the
BAS-SVX40K-EN
Using the Tracer® TU Service Tool with a Wireless Network
Physically changing the NET rotary address on each WCI and sensor in the network should be
started by disbanding the network. After the network is disbanded the NET addresses of the WCI
and sensors can be changed. You may want to consult with Technical Support before using this
method.
The best way to change a Zigbee channel is using Tracer TU. Any of the 15 Zigbee channels can be
selected under (Wireless tab > Advanced). See Tracer TU Help topic "Changing the Channel of a
Wireless Network" for more information on how to accomplish this.
Note: This method does not require touching any WCI, but will require touching each sensor in the
network after the channel is changed.
Also, it is strongly recommended you use a Direct Connection via USB cable to the SC/SC+ to make
this channel change. This is explained in "Changing the Channel of a Wireless Network."
The WCI NET rotary address 1 to 8 correspond to default Zigbee channels.
shows the default channels used. Knowing which Zigbee channels are used by the corresponding
WCI NET rotary setting is helpful when selecting a channel that has available bandwidth as
indicated on the Channel Quality Scan tool.
WCI NET rotary setting
1
2
3
4
5
6
7
8
MHz
MHz
Table 15, p. 109
Zigbee Channel
15
20
14
19
16
21
11
25
below
109