Tracer® ZN.010

and ZN.510

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.

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.

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

UNT-IOM-6

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Trane LO manual Supply Fan Operation

LO specifications

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