OPERATIONAL TEST PROCEDURE
Important: Do not run boiler unattended until the following procedure is completed.
1. After wiring is complete and prior to raising the water level above the probe set the thermostat to call for heat. The burner should not fire.
IMPORTANT:
If the boiler fires with no water at the probe, immediately shut down the boiler and refer to Trouble Shooting Instructions below.
2. Proceed to fill the system with water. When water reaches probe position burner should fire. If burner does not fire with water at the probe refer to
Trouble Shooting Instructions below.
MAINTENANCE
When installed on a residential hot water heating system, the probe should be removed and cleaned every five years. When installed on a commercial
application, the probe should be removed and cleaned annually. After cleaning the probe, perform the Operational Test Procedure described above.
TROUBLE SHOOTING
IF THE BURNER DOES NOT SHUT DOWN WHEN WATER DROPS BELOW THE PROBE.
1. Remove power immediately and re-check wiring.
2. Remove power and check for adequate clearance from the probe to any surface within the boiler or tee.
IF THE BURNER DOES NOT FIRE.
1. Make sure water is at the probe and probe lead wire is properly secured to probe.
2. Check for proper ground between probe and boiler shell. Excessive use of Teflon tape or sealing compound may insulate the probe from the
boiler shell.
3. Check to insure probe is not surrounded by an air pocket. Slowly loosen, but do not remove, the probe with a wrench. Allow any air to escape.
When water begins to seep past probe threads, retighten probe.
4. Re-check wiring and test for correct incoming voltage.
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The Safe Choice
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P.O. Box 1847 • New Haven, CT 06508
(203) 776-0473 • Fax (203) 773-1019
TOLL FREE 800-654-0768
www.hydrolevel.com
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