Trane ReliaTel Diagnostic Manual page 69

Table 20. Programmable zone sensor wiring diagram
REMOTE SENSOR
INPUT
REMOTE SENSOR
INPUT
24 VAC INPUT
COMMUNICATIONS
(e)
COMMON
SERVICE STATUS
(UCM INPUT)
SYSTEM STATUS
(ON/OFF INPUT)
COOL STATUS
(UCM INPUT)
HEAT STATUS
(UCM INPUT)
AUX RELAY
(CLOSED—
UNOCCUPIED)
AUX RELAY
(COMMON)
AUX RELAY
(CLOSED—
OCCUPIED)
(a)LTB and LTB1 refer to low-voltage terminal boards with numbers 1–20 and two test terminals.
(b)Connect an optional remote sensor (p/n BAYSENS017) to terminals S1 and S2. Connect the shield wire (drain
(c) Connect the 24 Vac power supply from the unit controller to terminals 11 and 14.
(d)Use terminal 15 on older 3–25 ton Voyager units with low-voltage terminal boards numbered 1–18 with two
(e)Data communication between the unit controller and the sensor is accomplished by a serial link connected
RT-SVD03G-EN
Sensor
S2
(b)
S1
(b)
(c)
14
12
(c)
11
10
9
8
7
A3
A2
A1
wire) from the shielded cable to terminal 11.
test terminals.
at terminal 12.
3–25 ton packaged
rooftops
*CD/*CH/*SC/*HC
UCP
control ReliaTel ReliaTel Control
(a)
LTB Control J6
Optional remote sensor
Optional remote sensor
(d)
14 14
12 12
11 11
10 10
9 9
8 8
7 7
The auxiliary relay on the sensor is form C, rated for 1.25 A at 30 Vac. It is
energized during occupied periods.
Thermostats and Sensors
3–20 split 27.5–50 ton packaged
system units rooftops
TTA/TWA YC*/TC*/TE*
UCP
control
(a)
J6 LTB1
14 14
12 12
11 11
10 10
9 9
8 8
7 7
ReliaTel
Control J6
14
12
11
10
9
8
7
69