Wiring The Receiver To The Unit Controller; Power Requirements; Wiring Procedure - Trane WTS Installation, Operation And Maintenance Manual

Wiring the Receiver to the Unit Controller

Power requirements and wiring instructions for the receiver are described in this section.

Power Requirements

The required power for the receiver is 24 Vac or 24 Vdc and less than 1 VA. The receiver is designed
to be powered by the host unit controller. A dedicated transformer to power the receiver is seldom
necessary and is not recommended. It should be used only when the host transformer does not
have enough volt-ampere (VA) capacity to power the receiver (see
receiver power consumption).
Wiring diagrams for single transformer wiring and multiple transformer wiring are located in
"Appendix A: Wiring Diagrams," p.

Wiring Procedure

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.
Equipment Damage!
Applying excessive voltage to the receiver module will permanently
damage it.
To wire the receiver to the unit controller:
1. Shut off power to the unit controller to which you are wiring the receiver.
2. Connect the wiring harness (provided) to the receiver
3. Route the wires from the receiver to the unit controller through either:
4. Terminate wires at the unit controller. Refer to
5. Trim off any unused terminals. Insulate exposed wire with tape or a wire nut.
BAS-SVX04G-EN
a. The opening at the back of the back plate (see
b. The hole in the bottom of the cover (see
which wires to use and where to terminate them on the controller.
Notes:
• To maintain agency compliance, ensure that length of the wiring harness is no more
than 3 m.
• Adapters are provided, which allow connecting multiple wires to the power terminals
of the host unit controller (see
• An anti-short bushing is provided; use it to prevent the wire from shorting out if the steel
penetrates the wiring harness (see
• If spade connectors are not needed, remove them and strip 1/4 inch of insulation from
wire.
46.
WARNING
NOTICE:
Figure 3, p. 15
Figure 4, p. 15
Table 1, p. 14
Figure 3 and Figure 4, p.
Figure 4, p. 15).
"Specifications," p. 45
(Figure 2, p. 14).
for an example).
for an example).
and Figure 2, p. 14
15.
Installation
for
to determine
13