User’s Information Manual
4SMART SYSTEM control module
Status Display Screens (cont’d)
By using the Previous/Next (, ) arrow keys on the SMART SYSTEM display panel, you can navigate through the eight (8) display screens. Each screen will contain two (2) viewable items. The following is a description of the individual items and what they can display:
Screen | Display shows: | Description |
| SYS: ***.*F | If the system supply sensor has not been selected as the control |
| sensor, only the system temperature will be displayed. | |
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| When the system supply sensor has been selected as the control |
| ***.*F (***) | sensor, the control will display the system temperature as well as the |
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| set point in parenthesis. |
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| Open | The control does not detect the system supply sensor. |
#3 |
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Shorted | The system supply sensor wires or the sensor itself has become | |
| shorted. | |
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| OUTDOOR: ***.*F | The control will display the outdoor air temperature as sensed by the |
| outdoor air sensor. | |
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| Open | The control does not detect the outdoor air sensor. |
Shorted
The outdoor air sensor wires or the sensor itself has become shorted.
Press the Next arrow key on the SMART SYSTEM display to access Screen #4.
#4
FLUE: ***.*F | The control will display the flue temperature. |
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Open | The control does not detect the flue sensor. |
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Shorted | The flue sensor wires or the sensor itself has become shorted. |
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AUX: ***.*F | The control will display the temperature. |
Open
The control does not detect the auxiliary sensor.
Shorted
The auxiliary sensor wires or the sensor itself has become shorted.
Press the Next arrow key on the SMART SYSTEM display to access Screen #5.
#5
FAN SPD: ****RPM | The control will display the actual fan motor RPM. |
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FLAME SIG: **.*uA | The control will display the flame signal in dc microamps. |
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Press the Next arrow key on the SMART SYSTEM display to access Screen #6.
#6
SH CFH: OFF | The control has not received a call for heat from a remote | |
thermostat. | ||
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ON | The control has received a call for heat from a remote thermostat. | |
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DHW CFH: OFF | The control has not received a call for heat from a SH remote | |
thermostat. | ||
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ON
The control has received a call for heat from a DHW thermostat.
Press the Next arrow key on the SMART SYSTEM display to access Screen #7.
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