© 2005 D 420 - 06/05 10 of 24
Item Field Range Access Description
InS (Installer)
Ad (Advanced)
InS
Ad
ACCESS LEVEL
The access level that is to be used by the control.
Note: This item is only available when the Lock / Unlock
DIP switch is set to Unlock.
°F, °C
Default = °F
InS
Ad
UNITS
Select temperature units between Fahrenheit and
Celsius.
0 to 255 Ad
COMMUNICATION ERRORS
The number of tN4 communication errors that have
been recorded.
– – –, 1 to 24 Ad
BOILER BUS DEVICES
Displays the number of devices on the boiler bus.
OFF, SEL Ad
FACTORY DEFAULT
Loads the factory defaults when the Up and Down
buttons are pressed.
420
InS
Ad
TYPE
Displays the type number of this product. The software
version is displayed when the Up button is held.
Misc (Miscellaneous) Menu (1 of 1)
The Miscellaneous Menu Items set control
and display options such as access level and
temperature units.
After the last item, the control returns to the first item in the menu.
MISC MENU
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