Trane Tracer ZN517 Installation And Operation Manual page 41

H
24 Vac
N
SERVICE
LED
LonTalk
In
Out
*Terminals Rc and Rh are provided as
inputs for 24 Vac power from the con-
trolled device. If the device has a sepa-
rate heating and cooling units, use Rh
for heat and Rc for cooling. If com-
bined, use only Rc (see "HVAC unit
electrical circuit wiring" on page 82).
CNT-SVX12C-EN
Figure 9. Wiring diagram for 4-cool applications
Tri-state
modulating
economizer
(optional)
Common
GND 24V GND 24V GND 24V OPN CLS
AC POWER AC POWER AC OUT AC OUT ECONOMIZER
COMM5 BINARY INPUTS BINARY INPUTS
PIN A B A B -BI1- -BI2-
Occupancy
or generic
(optional)
Dry contacts
only
Wiring requirements and options
Power*
Fan
Compressor 1 contactor
Compressor 2 contactor
Compressor 3 contactor
Compressor 4 contactor
R
G Y1 Y2 Y3 Y4
Generic binary output (optional)
Rc Rh G 1 2 3 4 5NO 5COM
HVAC UNIT HVAC UNIT
BINARY OUTPUT BINARY OUTPUT
ANALOG INPUTS ANALOG INPUTS ZONE SENSOR ZONE SENSOR
GND +20 AI1 -AI2- -DAT- ZN GND
_
+
GND
Typical 3-wire
Discharge air
sensor
temperature
(optional)
Outdoor air
Fan status or
temperature
generic
(optional)
(optional)
5NC STATUS
LED
COMM5
SET LED
1
2
3
On
4
LonTalk
Cancel
5
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