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© 2010 D 270 - 08/10
Display
Symbol Description
Boiler Demand
DHW Demand
Modulation
DHW Priority Override
Menu Field
Displays the
current menu
Item Field
Displays an
abbreviated
name of the
selected item
Status Field
Displays the
current status
of the control's
inputs, outputs
and operation
Number Field
Displays the current value
of the selected item
Buttons
Selects Menus, Items
and adjust settings
Burner
Displays when Relay 1 is turned on.
Warning
Displays when an error exists or when a limit
has been reached.
Pump
Displays when the primary or boiler pump is
operating.
Lock / Unlock
Displays when the Advanced /
Installer DIP switch is set to Installer.
DHW
Displays when the DHW pump is on.
°F, °C, min, hr, %
Units of measurement.
Occupied Schedule
Displays when the control is in occupied
mode.
Pointer
Displays the control operation as indicated
by the text.
UnOccupied Schedule
Displays when the control is in unoccupied
mode.
Modulating Output Scale
Displays the total modulation output level of
the boiler.