Install Instructions

50
DISPLAY SETTINGS
DESCRIPTION/ACTION DISPLAY
Select Display Settings from the Main Menu and press the
Operational Button under "SELECT" to enter this menu. This
menu contains adjustable display options for viewing information
on the UIM’s LCD screen. Use the Up & Down Buttons to
navigate the menu.
• Temperature Units - Adjustable user setting that changes
temperature units display to Celsius °C or Fahrenheit °F.
• Backlight Delay - Adjustable user setting that determines
how long the UIM’s LCD backlight remains illuminated after
a key has been pressed. Available settings are; Always Off,
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 48.
Temperature Units °F
Backlight Delay 30s
Contrast 60%
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Display Settings
HEATER INFORMATION
DESCRIPTION/ACTION DISPLAY
Select Heater Information from the Main Menu and press the
Operational Button under "SELECT" to enter this menu. This
menu contains non adjustable operational information.
• Elapsed Time - Total accumulated time the control system
(water heater) has been energized.
• Burner On Time - Total accumulated time the control
system has been in the heating operating state; burner run
time.
• Total Cycle Count - Total accumulated count of heating
cycles.
• CCB Version - Software version for central control board.
• Cong CRC - Veries the conguration key matches the
CCB programming.
• UIM Version - Software version for user interface module.
• Use External Enable - Enables/Disables the external
enable circuit.
• External Enable Status - Displays whether or not the
external enable circuit has been activated.
• Ignition Trials - Displays the number of ignition trials
allowed.
NOTE: Historical data is stored in the conguration key. If
this "key" is replaced during servicing the historical data will
be lost. The data stored in the new conguration key will no
longer reect the entire history of the water heater.
The Elapsed Time, Burner On Time and Cycle Count indicate
age, usage and wear.
If the Cycle Count per day is high (divide cycle count by
days to determine cycles per day) or the cycle duration is
short (determine burner on time total minutes, divide burner
on time total minutes by cycle count) consider rasing the
Differential setting to avoid short cycling and excessive
component wear, see Operating Set Point And Differential
Adjustment on page 48.
This historical data can also be used to assist facilities
managers in forecasting planned replacement of equipment
to help avoid lengthy and costly hot water supply interruptions.
Elapsed Time
10 day 0 hrs 0 mins
Burner On Time
5 hrs 22 mins
Total Cycle Count 00000035
CCB Version X.XX
Config CRC 0 x 605D
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Heater Information
Bottom of Menu
UIM Version X.XX
Use External Enable No
External Enable Status No
Ignition Trials 3
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Heater Information