Analog Inputs; Fan Mode Switch; Zone Sensors - Trane UniTrane Installation Operation & Maintenance

Analog Inputs

Table 7. Analog Inputs
Analog Input
Zone
Set
Fan
Analog input 1 (AI1)
Analog input 2 (AI2)
Notes:
1.The zone sensor, entering water temperature sensor, and the discharge air temperature sensor are
10KW thermistors. Figure 26 on page 38 provides the resistance-temperature curve for these
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 unit's return air stream.
3. Changeover units include an entering water temperature sensor.

Zone Sensors

Fan Mode Switch

44
Both Tracer ® ZN.010 and ZN.510 accept a maximum of five analog
inputs. Reference Table 7.
Description
Space temperature
Local setpoint
Fan mode input
Entering water temperature
Discharge air temperature
The zone sensors available with the Tracer
provide up to three different inputs
1. Space temperature measurement (10K thermistor)
2. Local setpoint
3. Fan mode switch
Wall mounted zone sensors include a thermistor as a component of
the internal printed circuit board. Unit mounted zone sensors use a
sensor placed in the unit's return air stream.
Each zone sensor is equipped with a thumbwheel for setpoint
adjustment.
The zone sensor may be equipped with a fan mode switch. The fan
mode switch offers selections of off, low, medium, high, or auto.
®
Tracer
and ZN.510
Application
Space temperature detection
Thumbwheel setpoint
Zone sensor fan switch
Entering water temperature detection
Discharge air temperature detection
® ZN.010 and ZN.510
ZN.010
UNT-IOM-6