Wiring Pic With Rtaa/Rtab/Rtxa/Rtad/Rtwb/Rtra/Rtub Chillers (Ucm Cld Controller With Csr Interface); Wiring Pic With Cvge/Cvae/Rthc Chillers (Ucp2 Controller) - Trane PIC Installation Operation Maintenance/ Programming

14
Installation
Wiring PIC with RTAA/RTAB/RTXA/RTAD/RTWB/RTRA/RTUB chillers
(UCM CLD controller with CSR interface)
The following wiring diagram applies for units equipped with UCM CLD
controller with the CSR (A9) communication interface.
2
TB2
CSR
1
2
A9
3
4

Wiring PIC with CVGE/CVAE/RTHC chillers (UCP2 controller)

The following wiring diagram applies for units equipped with UCP2
controller with the TCI4-Comm3 (A9) communication interface.
2
1
2
TCI4 - Comm3
3
4
A9
J3-A
1 2 SHD Rx Tx USB RJ-45 Rx
COMM3 DIAG RS232 MODBUS
Protocol Interface
Controller
Service Rx
CONFIGURATION LON
SW1 SW2 SW3 SW4 PIN Serv. A B A B ON
1 2 SHD Rx Tx USB RJ-45 Rx
COMM3 DIAG RS232 MODBUS
Protocol Interface
Controller
CONFIGURATION Service Rx LON
SW3 SW4 A B A B
SW1 SW2 PIN Serv.
Tx A Ref B On
RS485 Resistor
24 V
Imax=0.5A
0V GND 24V
24V AC/DC
+6V/-12V
Tx A Ref B On
RS485 Resistor
24 V
Imax=0.5A
ON 0V GND 24V
24V AC/DC
+6V/-12V
BAS-SVX08D-E4