Trane LO Tracer ZN.520, Analog Inputs . Analog Inputs, Description, Terminals, Function, Range

Tracer® ZN.520

Analog Inputs

Table 28. Analog Inputs

Description	Terminals	Function	Range
Zone	TB3-1	Space temperature input	5° to 122°F (-15° to 50°C)
Ground	TB3-2	Analog ground	NA
Set	TB3-3	Setpoint input	40° to 115°F (4.4° to 46.1°C)
Fan	TB3-4	Fan switch input	4821 to 4919 W (Off)
			2297 to 2342 W (Auto)
			10593 to 10807 W (Low)
			13177 to 13443 W (Medium)
			15137 to 16463 W (High)
Ground	TB3-6	Analog ground	NA
Analog Input 1	J3-1	Entering water temperature	-40° to 212°F (-40° to 100°C)
	J3-2	Analog ground	NA
Analog Input 2	J3-3	Discharge air temperature	-40° to 212°F (-40° to 100°C)
	J3-4	Analog ground	NA
Analog Input 3	J3-5	Fresh air temp/Generic temp	-40° to 212°F (-40° to 100°C)
	J3-6	Analog ground	NA
Analog Input 4	J3-7	Universal Input	0 – 100%
		Generic 4-20ma	0 – 100%
		Humidity	0 – 2000ppm
		CO2
	J3-8	Analog ground	NA
Ground	J3-9	Analog ground	NA

Notes:

1)The zone sensor, entering water temperature sensor, discharge air sensor, and the outside air tempera- ture sensor are 10KW thermistors.

2)Zone sensor:

Wall mounted sensors include a thermistor soldered to the sensor’s circuit board. Unit mounted sensors include a return air sensor in the units return air stream.

3) Changeover units include an entering water temperature sensor.

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