Filter
Top Products
UV-SVP01A-EN 50
Troubleshooting
.
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.
Table 27: Test sequence for face-and-bypass unit configurations
Step Fan
DX, or cool or heat/
cool changeover valve
Face-and-
bypass damper
Electric heat,
or heat valve
Outdoor air
damper
Generic/
baseboard
heat
J1-1 J1-2 J1-3 J1-5 J1-6 J1-7 J1-8 J1-9 J1-10 J1-11 J1-12 TB4-1
1: Off
1
Off Off Off Off NA Off On Off NA Off On Off
2: Fan high
2
High Off Off Off NA On Off Off NA Off Off Off
3: Fan med
3
Off Med Off Off NA On Off Off NA Off Off Off
4: Fan low
4
Off Off Low Off NA On Off Off NA Off Off Off
5: Main open,
DX on
High Off Off On NA On Off Off NA Off Off Off
6: Main close,
DX off, aux
open
High Off Off Off NA On Off On NA Off Off Off
7: Aux open,
exhaust fan
5
High Exh Off Off NA On Off On NA Off Off Off
8: Aux close,
damper open
High Off Off Off NA Off On Off NA On Off Off
9: Outdoor air
damper close
High Off Off Off NA Off On Off NA Off On Off
10: Generic /
baseboard heat
energized
High Off Off Off NA Off On Off NA Off Off On
11: Exit
6
Exit