Display Settings |
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| Description/Action |
| Display |
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Select Display Settings from the Main Menu and press the |
| Display Settings |
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Operational Button under "SELECT" to enter this menu. This |
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Temperature Units | °F | ||||
menu contains adjustable display options for viewing information | |||||
on the UIM’s LCD screen. Use the Up & Down Buttons to | Backlight Delay | 30s | |||
navigate the menu. | Contrast |
| 60% | ||
• | Temperature Units - Adjustable user setting that changes |
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| temperature units display to Celsius °C or Fahrenheit °F. |
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• | Backlight Delay - Adjustable user setting that determines |
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| how long the UIM’s LCD backlight remains illuminated after |
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| a key has been pressed. Available settings are; Always Off, | CHANGE | BACK | HELP | |
| 10, 30 or 60 seconds and Always On. |
•Contrast - Adjustable user setting to adjust the UIM’s LCD screen contrast between text and background.
Note: These settings are adjusted in the same way described for the Operating Set Point And Differential Adjustment on page 47.
Heater Information
Description/Action | Display |
Select Heater Information from the Main Menu and press the | Heater Information | ||||
Operational Button under "SELECT" to enter this menu. This | |||||
Elapsed Time |
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menu contains non adjustable operational information. | 10 day 0 hrs 0 mins | ||||
• Elapsed Time - Total accumulated time the control system | Burner On Time | ||||
| (water heater) has been energized. |
| 5 hrs 22 mins | ||
• Burner On Time - Total accumulated time the control |
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| system has been in the heating operating state; burner run | Cycle Count |
| 00000035 | |
| time. | CCB Version |
| X.XX | |
• Cycle Count - Total accumulated count of heating cycles. | UIM Version |
| X.XX | ||
• | CCB Version - Software version for central control board. | CHANGE | BACK | HELP | |
• | UIM Version - Software version for user interface module. | ||||
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| Note: Historical data is stored in the CCB's memory. If this |
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| CCB is replaced during servicing the historical data on the |
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| CCB being replaced will be lost. The data stored in the new |
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| circuit board will no longer reflect the entire history of the |
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| water heater. |
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| The Elapsed Time, Burner On Time and Cycle Count indicate |
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| age, usage and wear. |
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| If the Cycle Count per day is high (divide cycle count by |
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| days to determine cycles per day) or the cycle duration is |
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| short (determine burner on time total minutes, divide burner |
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| on time total minutes by cycle count) consider rasing the |
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| Differential setting to avoid short cycling and excessive |
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| component wear, see Operating Set Point And Differential |
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| Adjustment on page 47. |
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| This historical data can also be used to assist facilities |
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| managers in forecasting planned replacement of equipment |
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| to help avoid lengthy and costly hot water supply interruptions. |
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49