Trane Voyager Commercial Installation & Operation Manual page 62

Startup
Daytime Warm-up (DWU) Control
Daytime Warm-up is applicable during occupied status and when the zone temperature is below
the initiation temperature. It can be activated or deactivated through ICS or a night setback zone
sensor. If ICS or a night setback zone sensor is not utilized, DWU can be activated by setting the
DWU enable DIP switch (RTAM) to ON and supplying a valid morning warm-up setpoint.
The unit is shipped with a Morning Warm-up setpoint configured and the Daytime Warm-up
function is activated (switch on). Opening the DWU enable switch will disable this function.
If the system control is local, the DWU initiation setpoint is 3° F below the Morning Warm-up
setpoint. The termination setpoint is equal to the Morning Warm-up setpoint.
If the system control is remote (Tracer™), the DWU setpoint is equal to the Tracer Occupied heating
setpoint. The initiation and termination setpoints are selectable setpoints designated by Tracer.
When the zone temperature meets or exceeds the termination setpoint while the unit is in an
Occupied, "Auto" Mode or switched to the "Cooling" Mode, the unit will revert to the cooling
operation.
If an Occupied "Heating" Mode is selected, the unit will only function within the DWU perimeters
until the system is switched from the "Heat" Mode or enters an Unoccupied status.
Note: When a LCI is installed on a VAV unit, the MWU setpoint located on the RTAM board is
Supply Duct Static Pressure Control
The supply duct static pressure is measured by a transducer with a 0.25 to 2.125 VDC proportional
output which corresponds to an adjustable supply duct static pressure of 0.3" w.c. to 2.5" w.c.
respectively with a deadband adjustment range from 0.2" w.c. to 1.0" w.c.. The setpoint is
adjustable on the RTAM Static Pressure Setpoint potentiometer or through ICS.
Example:
Supply Duct Static setpoint = 2.0" w.c. (RTAM)
Deadband = 0.2" w.c. (RTAM)
Duct Static Control Range = 1.9" w.c. to 2.1" w.c.
Figure 40. Output vs. Input
62
ignored. The MWU and DWU setpoints come from the higher priority LCI-R DAC.
Transducer Voltage Output vs Pressure
Input
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0. 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
5
Pressure (inches w.c.)
RT-SVX34C-EN