Trane Tracer ZN517 Installation And Operation Manual page 23

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 4. Wiring diagram for 2-heat/2-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
Heat stage 1
Heat stage 2
R
Y1 Y2
G W1 W2
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
Discharge air
Typical 3-wire
temperature
sensor
(optional)
Outdoor air
(optional)
temperature
Fan status
(optional)
(default:
normally closed
closed = no flow
open = flow)
or generic
5NC STATUS
LED
COMM5
SET LED
1
2
3
On
4
LonTalk
Cancel
5
11