36 BCXC-SVX01A-EN
Operation
Sequence of
Operation
Table O-SO-4. Fan Mode Operation, Tracer ZN010 and ZN510
Heating Mode Cooling Mode
Fan Mode Occupied Unoccupied Occupied Unoccupied
Off off off off off
Low low off/high (3) low off/high (3)
High high off/high (3) high off/high (3)
Auto
Continuous heat default off/high (3) cool default off/high (3)
Cycling Off off/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
®
ZN010 and ZN510 automatically starts the fan on high
speed and runs for one-half of a second 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, ZN010 and ZN510 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 high.
Table O-SO-5. Valid Operating Range and Factory Default Setpoints, Tracer ZN010 & ZN510
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 O-SO-6. Local Fan Switch Enabled
Communicated Fan Switch (Local) Fan Operation Fan Speed Input
Off Ignored Off
Low Ignored Low
High Ignored High
Auto Off Off
Low Low
High High
Auto Auto (configured default,
determined by heat/cool mode)
Table O-SO-7. Fan Operation in Heating and Cooling Modes
Heating Cooling
Fan mode Occ. Unocc. Occ. Unocc.
Off Off Off Off Off
Low Low Off/High Low Off/High
High High Off/High High Off/High
Auto (continuous) Default Off/High Default Off/High
fan sp. fan sp.
Fan Operation During Occupied Heating
Modes
The ZN520 fan output(s) normally run
continuously during the occupied and
occupied standby modes, but cycle
between high and off speeds with
heating/cooling during the unoccupied
mode. When in the occupied mode or
occupied standby mode and the fan
speed is set at the high or low position,
the fan runs continuously at the selected
speed. Refer to the Troubleshooting
section for more information on
abnormal fan operation.
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