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.

UNT-IOM-6

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Trane LO manual Analog Inputs Description Terminals Function Range

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