Thermostat Wiring - Johnson Controls NXA-FCU-01 Installation Manual

Installation Guide

THERMOSTAT WIRING

DO NOT WIRE ANY THERMOSTAT OTHER THAN THE JCI
THERMOSTATS LISTED BELOW TO THE STAT+ AND STAT-
TERMINALS ON THE FCU-01 BOARD.
• • • • •
JCI INTELLIGENT THERMOSTAT NXT-INT-01
• • • •
• JCI TSO THERMOSTAT NXT-TSO-01
THE THERMOSTAT CAN ONLY BE CONNECTED TO STAT+
AND STAT-. ANY OTHER CONNECTIONS WILL DAMAGE THE
THERMOSTAT AND VOID THE WARRANTY.
To connect a thermostat to the FCU-01:
1. Connect the black wire to the STAT - terminal.
2. Connect the red wire to the STAT + terminal.
The Intelligent STAT connections to the FCU-01 are shown in Figure 5 below:
NOTE: The Intelligent STAT and TSO STAT are both wired the same.
J10
Figure 5. Thermostat Wiring.
12
FCU Controller
BLACK RED
72 ° F
RoomTemp
ROOM/
OUTSIDE
*
OVERRIDE