Supply Fan Operation - Trane UniTrane Installation Operation & Maintenance

Supply Fan
Operation
Table 8. Fan Mode Operation
Heating Mode
Fan Mode Occupied
Off Off
Low Low
Medium Medium
High High
Auto
Continuous Heat default
CyclingOff/heat default
Notes:
1. During the transition from off to any fan speed but high, Tracer
starts the fan on high speed and runs for three seconds before transitioning to the selected speed (if it
is other than high). This provides enough torque to start all fan motors from the off position.
2. When the heating output is controlled off, ZN.010 and ZN.510 automatically controls the fan on for
an additional 30 seconds. This delay allows the fan to dissipate any residual heat from the heating source,
such as electric heat.
3. Whenever two states are listed for the fan:
The first state (off) applies when there is not a call for heating or cooling.
The second state (varies) applies when there is a call for heating or cooling.
The heat default is factory configured for low fan speed, and the cool default is medium.
Table 9. Valid Operating Range and Factory Default Setpoints
Setpoint/Parameter
Unoccupied cooling setpoint
Occupied cooling setpoint
Occupied Heating setpoint
Unoccupied heating setpoint
Cooling setpoint high limit
Cooling setpoint low limit
Heating setpoint high limit
Heating setpoint low limit
Power up control wait
UNT-IOM-6
Reference Table 8 on page 45 for fan mode operation.
®
The Tracer ZN.010 and ZN.510 will operate in either continuous fan
or fan cycling mode. The fan cycles when the fan mode switch is
placed in auto. The fan runs continuous when placed in the high,
medium, or low position. Use Rover™, installation and service tool,
to change the auto defaults.
Cooling Mode
Unoccupied Occupied
Off Off
Off/high (3) Low
Off/high (3) Medium
Off/high (3) High
Off/high (3) Cool default
Off/high (3) Off/cool default
Default Setting
85 ° F
74 ° F
71 ° F
60 ° F
110 ° F
40 ° F
105 ° F
40 ° F
0 sec
®
Tracer
and ZN.510
Unoccupied
Off
Off/high (3)
Off/high (3)
Off/high (3)
Off/high (3)
Off/high (3)
® ZN.010 and ZN.510 automatically
Valid Operating Range
40 to 115 ° F
40 to 115 ° F
40 to 115 ° F
40 to 115 ° F
40 to 115 ° F
40 to 115 ° F
40 to 115 ° F
40 to 115 ° F
0 to 240 sec
ZN.010
45