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5
MENU/EXIT
DISPLAY SCREEN
ENTER/RESET
TXENSUOIVERPNWODPU
• Press to turn heater off or back on
• Press to select a menu item
• Press after parameter programming
to store parameter data
• Press to exit Service Mode
• Hold 5 seconds to enter code
Input Mode (Menu Mode)
• Press to move up one level
in Menu Mode or to exit
Menu Mode
• Press to change boiler water
temperature and/or tank water
temperature set point during
normal operation
• Press to change displayed data
values in Menu Mode
• Press to navigate through menu
listing in Menu Mode
• Press to toggle display during normal
operation to show outlet and return
temperatures, fan speed, flame signal, etc.
• Press to toggle between digits when
entering access code or between hour,
minutes, etc., when entering date and time
• Press and hold both to enter Service Mode
• 2-Line / 16 character LCD display
• Backlit LCD
The Copper-fin display
Copper-fin II/IIE Boiler and Water Heater Service Manual