Install Instructions

STEP 4 - Testing
7
OFF
ON
a. Before filling the system, turn on the electric power to the boiler. The low water
cut-off's green "Power On" LED should be illuminated. With the room thermo-
stat set on "heat", confirm that the burner will not operate without water in the
system. The low water cut-off's red LED should be illuminated.
NOTE: The burner will come on briefly (1 second or less) and then shut off to
verify proper operation.
b. Fill the system with water. The low water cut-off's red LED should shut off. Confirm that the burner
and room thermostat are operating properly.
c. Check for proper operation of all of the limit and operating controls, before leaving the site.
d. Check the threaded connection of the low water cut-off for leakage. Tighten, if necessary.
Pressing the “Test Button” interrupts the probe circuit which simulates water off the probe.
a. Press and hold “test button” while burner is running.
b. The burner should turn OFF and red light turn ON if burner circuit is wired correctly.
c. Release the test button and the red light should turn off and the burner should turn on provided
that the boiler water is in contact with the probe.
Testing Control Using “Test Button”
Start-Up