Table Of Contents - Johnson Controls NXA-FCU-01 Installation Manual

FCU-01 Overview ..................................................................................... 6
Inspection ................................................................................................... 7
Requirements .............................................................................................. 7
Location ...................................................................................................... 7
Mounting .................................................................................................... 8
Wiring Connections .................................................................................. 9
Power Connections ....................................................................................... 9
Network Wiring ............................................................................................ 10
Thermostat Wiring ....................................................................................... 12
Input Wiring .................................................................................................. 13
Input Labeling ....................................................................................... 14
Input Jumper Blocks ............................................................................ 14
Input 1 (I1) - Discharge Air Temperature Wiring ........................... 15
Input 2 (I2) - Mixed Air Temperature Wiring .................................. 16
Input 3 (I3) - Space/Return Air Temperature Wiring ..................... 17
Input 4 (I4) - Outside Air /Supply Water Temperature Wiring .... 18
Input 5 (I5) - Fan Status ...................................................................... 19
Input 6 (I6) - Emergency Shutdown .................................................. 20
Digital Outputs ............................................................................................. 21
Digital Output DO1 - Fan Wiring ..................................................... 22
Digital Outputs DO2 and DO3 - Cooling Inc/Dec or Stage 1/2
Wiring ..................................................................................................... 23
Floating Control .......................................................... 23
Discrete Control ......................................................... 24
Digital Outputs DO4 and DO5 - Heating Inc/Dec or Stage 1/2
Wiring ..................................................................................................... 25
Floating Control .......................................................... 26
Discrete Control ......................................................... 27
Analog Output .............................................................................................. 28
Analog Output AO1 - Damper Actuator Wiring ............................ 29
Warranty ...................................................................................................... 30
FCU Controller

Table of Contents

Installation Guide
5