RT-SVD03G-EN 147
Voyager Commercial 27½ to 50 Tons CV and VAV
Note: There is only one module used for 27.5 - 50 ton units regardless of configuration (VAV, CV).
The unit is configured by wire harness inputs. See the wiring diagram for details.
RTOM - ReliaTel Options Module - (standard)
This module has inputs for the following:
• Ventilation Override (LTB4)
• Frost Stat input
• Clogged Filter Switch (optional)
• Discharge Air Sensor (optional on CV, standard on VAV)
Note: Discharge Air Sensor required with CCP/ICS
RTAM - ReliaTel Air Handler Module - (standard on VAV)
This module contains the VAV setpoint potentiometers as well as the following inputs and outputs:
• DIP switch inputs for Supply Air Reset, Daytime Warm-up enable, and IGV/VFD configuration.
• Supply pressure transducer input Inlet Guide Vane (IGV) or Variable Frequency Drive (VFD)
output.
• Ventilation Heat Relay (VHR) output.
ECA - Economizer Actuator - (optional)
If the unit has an economizer this module is present. It is screwed to the top of the economizer
actuator motor in the economizer section of the unit. The ECA has the following inputs and outputs:
• Mixed Air Sensor - this sensor is located in the supply air section of the unit.
• Return Air Sensor (optional) - This sensor is used when the unit has Comparative Enthalpy.
• Return Humidity Sensor (optional) - this sensor is used when the unit has Comparative
Enthalpy.
• Outdoor Humidity Sensor (optional) - this sensor is used when the unit has Reference Enthalpy
or Comparative Enthalpy.
• Exhaust Fan Relay output.
•CO
2
Sensor input (optional).
• Remote minimum position potentiometer (optional).
TCI - Trane Communication Interface - (optional)
Input and output for communication to Tracer Summit (COMM4) or CCP (COMM4). Note: ReliaTel
TCI does support communication from earlier versions of Tracker, Tracer 100 or ComforTrac.
LCI - LonTalk Communication Interface (optional)
Input and output for LON communication with Tracer Summit, Tracker Version 10+, or 3rd party
LonTalk building management systems.
IGN - Ignition Control Module (YC* only)
This module has the following inputs and outputs:
• TCO 1, TCO 2, TCO 3 input (limit switches)
• Hot Surface Ignitor output / flame sensor input
• Combustion blower motor output
• Gas valve output
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