tekmar 420 Boiler Reset Module - Manual (Page 10)

© 2007 D 420 - 08/07 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 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
Testing the Control
The control has a built-in test routine that tests the main
control functions. The control continually monitors the
sensors and displays an error message whenever a fault
is found. The individual outputs and relays are tested using
a test sequence.
Test Sequence
Each step in the test sequence lasts 10 seconds.
• • Start the test sequence by pressing the Test button.
•
• Pause the test sequence by pressing the Test button
again. To advance to the next step, press the Test button
again.
• • If the test sequence is paused for more than five minutes,
the control exits the entire test routine.
• • To advance to a particular step, repeatedly press and
release the Test button to display the appropriate device.