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FIG. 56g Command Display Data Screen
STATUS POINTS
In the screen display for a specific boiler or water heater, there will be a Status indication. The status point details the operational mode of the appliance or in the event of a control sensed failure, a status point alarm. The status point alarm mode indicates the reason for the control sensed shut down of the appliance.
The first screen is viewable on the Command Display as it is powered up. This Command Display screen gives the current software version running on the Excel 10. This screen goes away after 60 seconds. The amount of time until this screen changes is displayed on the bottom left of the screen in a numeric count. After the 60 seconds expires or when the user presses any key during this interval, the next screen is displayed. This feature is used for performing factory tests.
After
| TABLE - U |
| Status Point Operational Modes: |
|
|
Self Test: | Excel 10 self test period, approximately 5 seconds during power up of Excel 10. |
_________________________________________________________________________________________________________ | |
Standby: | There is no call for heat and the boiler is waiting for a call for heat. |
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H2OFlow OK: | Checking operation of flow switch to verify water flow from the pump. |
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Air Press OK: | Low air switch verifies operation of combustion air blower. |
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Drain OK: | Verifies that the condensate drain flow to the optional Condensate Management System is not |
| blocked. |
_________________________________________________________________________________________________________ | |
GasPress OK: | Verifies gas pressure at optional switch(es) - high and/or low. |
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PrePurge: | Pre purge operation of combustion air blower. |
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HSI OK: | Hot Surface Igniter On. |
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Burner ON: | Burner On. |
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Heating: | Temperature is beginning to rise. |
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PostPurge: | Post purge combustion blower operation after a call for heat sequence. |
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