Trane BMTK-SVN01D-EN manual Wire optional inputs and outputs, Input and output wire specifications

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Chapter 3 Termination board wiring

Wire optional inputs and outputs

The Tracker controller provides input and output terminals as follows:

•Input for an optional priority shutdown device

•Input for an optional utility pulse meter

•Input for an optional outdoor air temperature sensor

•Output terminal for an optional alarm relay

Refer to Table 6 for input and output wire specifications, and to the termination board wiring diagram in Figure 14 on page 24 for wiring all inputs and outputs.

Table 6. Input and output wire specifications

Input and output	Description	Wire specifications
terminals
Alarm relay output	Binary output	Trane recommends 18 AWG (1.02 mm2) wire and metal
TB1-4, TB1-5	Dry contact	conduit.
	Operating range: 24 V, 1 A	Maximum length = 1000 ft (305 m) *†
	maximum
Priority shutdown	Binary input	Trane recommends 18—22 AWG (1.02 mm2—0.643mm2)
device input	Operating range:	wire and metal conduit.
TB1-6, TB1-7	12 Vdc nominal	Maximum length = 1000 ft (305 m) *‡
	(10 Vdc to 14 Vdc) at
	12 mA nominal
Utility pulse meter
	(10 mA to 14 mA)
input
	< 50 Ω = switch closed
TB1-8, TB1-9
	> 1000 Ω = switch open
Thermistor input	Analog input for an outdoor air	Shielded wire, 18—22 AWG (1.02 mm2—0.643mm2)
TB1-10, TB1-11,	temperature sensor	twisted pair
shield ground TB1-12	Operating range:	Maximum length = 300 ft (91 m) *‡
	From –50ºF to 200ºF
	(–46ºC to 93ºC)
	Thermistor, 10 kΩ at 77°F (25°C)

*All field-installed binary wiring is low voltage and must comply with National Electrical Code (NEC) and federal, state, and local electrical codes.

† Alarm relay wires and 24 Vac wires may reside in the same conduit.

‡ Do not run input wires and ac power wires together in the same conduit or wire bundle.

26 BMTK-SVN01D-EN