Installation & Operation Manual
7 Operating information
Status display screens
Status Display Screens
By using the Previous/Next (, ) arrow keys on the SMART SYSTEM display panel, you can navigate through the 11 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 |
| HTR: OFF | The unit has been turned OFF by the Enter/Reset button on the |
| SMART SYSTEM display panel. | |
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| HTR: | The unit has not received a call for heat from a remote thermostat nor |
| has it received a call for heat from a DHW thermostat. | |
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| The unit has met the water temperature set point, but is still receiving |
| HTR: SETPOINT MET | a call for heat from either a remote thermostat, a DHW thermostat, |
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| or a BMS. |
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| HTR: | The unit has initiated the 10 second air purge upon a call for heat. |
Screen #1 |
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| The unit has begun the 30 second heatup time prior to the trial for | |
Line 1 | HTR: IGNITER * ON | ignition. Display will show IGNITER A or IGNITER B depending on |
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| which stage has priority. |
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| HTR: RUN STG **** | The unit has fired and is running at the displayed number of stages |
| Or | |
| (1,2,3,4) | |
| HTR: DHW STG **** | |
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| The call for heat has been satisfied and the unit runs the fan for an |
| HTR: | additional 10 seconds to clear the combustion chamber and vent |
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| system of residual flue products. |
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| HTR: SERVICE MODE | The unit has been placed in a temporary mode that will allow the unit |
| to fire for the purpose of combustion analysis. | |
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| When the outlet sensor has been selected as the control sensor |
| OUT: ***F (***) | (default), the control will display the outlet temperature as well as the |
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| set point in parenthesis. |
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Screen #1 |
| If the outlet sensor has not been selected as the control sensor or a |
OUT: ***F | system supply sensor is connected, only the outlet temperature will be | |
Line 2 |
| displayed. |
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| OUT: OPEN | The control does not detect the outlet sensor. |
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| OUT: SHORTED | The outlet sensor wires or the sensor itself has become shorted. |
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Press the Next arrow key on the SMART SYSTEM display to access Screen #2.
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