Supply fan operation 45, Tracer, Supply fan operation – Trane LO User Manual
Page 45
UNT-IOM-6
45
Tracer
®
ZN.010
and ZN.510
Table 9. Valid Operating Range and Factory Default Setpoints
Setpoint/Parameter
Default Setting
Valid Operating Range
Unoccupied cooling setpoint
85° F
40 to 115° F
Occupied cooling setpoint
74° F
40 to 115° F
Occupied Heating setpoint
71° F
40 to 115° F
Unoccupied heating setpoint
60° F
40 to 115° F
Cooling setpoint high limit
110° F
40 to 115° F
Cooling setpoint low limit
40° F
40 to 115° F
Heating setpoint high limit
105° F
40 to 115° F
Heating setpoint low limit
40° F
40 to 115° F
Power up control wait 0 sec 0 to 240 sec
Table 8. Fan Mode Operation
Heating Mode
Cooling Mode
Fan Mode
Occupied
Unoccupied
Occupied
Unoccupied
Off
Off
Off
Off
Off
Low
Low
Off/high (3)
Low
Off/high (3)
Medium
Medium
Off/high (3)
Medium
Off/high (3)
High
High
Off/high (3)
High
Off/high (3)
Auto
Continuous
Heat default
Off/high (3)
Cool default
Off/high (3)
CyclingOff/heat default
Off/high (3)
Off/cool default
Off/high (3)
Notes:
1. During the transition from off to any fan speed but high, Tracer
®
ZN.010 and ZN.510 automatically
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.
Supply Fan
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.