Trane WZS Installation & Operation Manual page 23

Figure 9. Multiple transformer wiring (not recommended)
BAS-SVX04A-EN • Wireless Zone Sensor
Setting the Address, Mounting, Wiring, and Associating the
Receiver and Sensor
Using a dedicated transformer to power the receiver is seldom necessary and is
not advised. (See Figure 8, p. 22
method.) A dedicated transformer should be used only when the host
transformer does not have enough volt-ampere (VA) capacity to power the
receiver (seeTable 11, p. 45
If you are using a dedicated transformer, make sure the grounds (commons) of
the multiple transformers are electrically connected to one another (see
for an example).
for the recommended single transformer wiring
for receiver power consumption).
Figure 9
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