Trane Tracer ZN.520 Installation Owner Diagnostics page 56

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Table 27: Test sequence for face-and-bypass unit configurations
Step Fan
J1-1 J1-2
1: Off Off Off
1
2: Fan high High Off
2
3: Fan med Off Med
3
4: Fan low Off Off
4
5: Main open,
High Off
DX on
6: Main close,
DX off, aux High Off
open
7: Aux open,
High Exh
exhaust fan
5
8: Aux close,
High Off
damper open
9: Outdoor air
High Off
damper close
10: Generic /
baseboard heat High Off
energized
11: Exit
6
1. Upon entering manual output test mode, the controller turns off all fan outputs and drives all dampers and valves closed (if required).
2. At the beginning of step 2, the controller attempts to clear all diagnostics.
3. If the unit is configured for a 2-speed fan, the fan remains on high speed at step 3.
4. If the unit is configured for a 2-speed fan, the low fan speed output energizes at step 3. If the unit is configured for a 1-speed fan, the fan
remains on high speed at step 3.
5. If the unit is configured for a 1- or 2-speed fan, the exhaust fan output energizes on step 7. The exhaust fan output is shared with medium
fan speed.
6. After step 10, the test sequence performs an exit. This initiates a reset and attempts to return the controller to normal operation.
UV-SVP01A-EN
Troubleshooting
DX, or cool or heat/
cool changeover valve
J1-3 J1-5 J1-6
Off Off NA
Off Off NA
Off Off NA
Low Off NA
Off On NA
Off Off NA
Off Off NA
Off Off NA
Off Off NA
Off Off NA
Face-and- Electric heat,
bypass damper or heat valve
J1-7 J1-8 J1-9 J1-10
Off On Off
On Off Off
On Off Off
On Off Off
On Off Off
On Off On
On Off On
Off On Off
Off On Off
Off On Off
Exit
Generic/
Outdoor air
baseboard
damper
J1-11 J1-12 TB4-1
NA Off On
NA Off Off
NA Off Off
NA Off Off
NA Off Off
NA Off Off
NA Off Off
NA On Off
NA Off On
NA Off Off
heat
Off
Off
Off
Off
Off
Off
Off
Off
Off
On
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