8
BAS-PRC006-EN
Figure 2 shows a general wiring diagram
for the Tracer ZN521 zone controller.
Figure 2:
Tracer ZN521 wiring diagram
LED
A
B
B
A
AI4
+20
GND
AI2
AI3
FAN GND
AI1
ZN GND
LED
SET
PIN
ZONE SENSOR
SERVICE
ANALOG INPUTS
COMM5
COMM5
AC POWER
24V
24V
GND
24V
BINARY INPUTS
BI3
BI1
BI2
BI4
BINARY OUTPUTS
2
1
4
3
7
6
5
8
9
LED
STATUS
10
5
4
3
2
1
On
Cancel
6
H
24 Vac
N
Binary inputs
Binary outputs
Trane zone sensor
Analog inputs
Comm5 (LonTalk)
Out
In
Comm5 (LonTalk)
Wiring diagram for the
ZN521 zone controller