Input 4 (I4) - Outside Air /Supply Water Temperature Wiring - Johnson Controls NXA-FCU-01 Installation Manual

Installation Guide
INPUT 4 (I4) - OUTSIDE AIR /SUPPLY WATER TEMPERA-
TURE WIRING
Input 4 must be wired to the Outside Air Temperature or the Supply Water
Temperature. Wiring for I4 is shown in Figure 11. To wire I4 to a thermistor:
1. Select the correct jumper setting for a thermistor on J6.
2. Connect one lead of the thermistor to input terminal I4 on terminal
block J2.
3. Connect the other lead to one of the GND terminals.
NOTE: Only a 10K Type II (CP Curve) thermistor may be used.
Figure 11. I4 - Thermistor Wiring.
18
FCU Controller
I6 GND I5 I4 GND I3 I2 GND I1
J2
VOUT
THERMISTOR