Trane ReliaTel Diagnostic Manual page 12

Module Flow Diagram
RTRM
Figure 2. Refrigeration Module (RTRM) Gas Heating
Unit Control, Select one
Zone Sensor
Mechanical
Thermostat
G Y1 Y2 W1
Zone Sensor
Programmable
COMM 3/4
Communication
Interface
12
R C/B
Options
Module
Economizer
Module
w/Actuator
24 VAC
Power
YS/H Refrigeration Module
4 Zone Sensor Inputs (AIP)
4 Outputs 1200 BPS Comm
LED or indications
Non Heat Pump Config (BIP)
1 Compressor Config (BIP)
1 Stage Heat Config (BIP)
4 Thermostat inputs (BIP)
3 to 7 wire Communicating ZSM
Indoor Fan Output (BOP)
MODBUS Communication
Compressor 1 Output (BOP)
Compressor 1 Proving (BIP)
Compressor 1 Disable (BIP)
Emergency Stop (BIP)
Service Test input (BIP)
Outdoor Air Temp (AIP)
LEDs: System TX, RX
Gas Heat
Module
(IGN)
IDF
CC1
Resistor
Sensor
RT-SVD03G-EN