Trane Voyager Commercial Installation & Operation Manual page 55

Startup
Figure 36. RTVM Module
= Space Pressure Deadband (iwc)
2
= Space Pressure Deadband (iwc)
2
2 = Space Pressure Setpoint (iwc) = Space Pressure Deadband (iwc)
2
2 = Space Pressure Setpoint (iwc)
2 = Space Pressure Setpoint (iwc)
= Space Pressure Deadband (iwc)
2
2 = Space Pressure Setpoint (iwc)
RTVM
RTVM
RTVM
RTVM
Figure 37. RTDM Module
TDM
The RTAM module provides a 2 to 10 VDC output to control the IGV actuator or Variable Frequency
Drive. DIP switches located on the RTAM configures the unit to use the output for IGV's or a VFD.
Customer changeover input from Low Voltage Terminal Board (LTB5) activates VAV heating. The
Supply Air Heating setpoint must be set to the desired discharge air temperature for heating. This
VAV heating mode is available only with modulating gas heat units. In this mode the gas heaters
modulate and the supply air pressure control remains active to satisfy the zone settings.
For constant volume (CV) units with modulating gas heat using a conventional thermostat, the
Discharge Air SP on the RTOM must be set to desired discharge air temperature in order for the unit
to function properly. See Figure 35, p. 54 For VAV units with modulating gas heat, the Supply Air
Heating Setpoint on the RTAM is used to control the heat setpoint in the changeover heating mode.
The RTVM (Ventillation Module) provides a 2 to 10 VDC signal to control the Exhaust Blade Actuator
in order to relieve positive building pressure. The signal output will be modulated based on the
measured values from the Space Pressure Transducer. The Space Pressure Calibration Solenoid
will ensure that the RTVM reads a differential pressure between the building pressure and
RT-SVX34C-EN 55