DIMENSIONS
SPECIFICATIONS
VOLTAGE
24 VAC
POWER CONSUMPTION
1 VA
SWITCHING CAPACITY
50 VA
MAX LOAD
5 Amps
MAX PRESSURE
160 PSI (11.25 kg/cm
2
)
MAX WATER TEMPERATURE
250°F (121°C)
MAX AMBIENT TEMPERATURE
170°F (77°C)
OPERATIONAL TEST PROCEDURE
IMPORTANT: Do not run boiler unattended until the following procedure is completed
1.
Before raising the water level above the Model 1100M, turn on power to the boiler and set the thermostat to call for heat. Both the green
“POWER” LED and amber “LOW WATER” LED should illuminate. The burner should not fire. IMPORTANT: If the burner fires with no water
at the probe, immediately shut down power to the boiler and refer to the Trouble Shooting instructions below.
2.
After 30 seconds, the amber LED will begin to blink indicating that the control is locked out.
3.
Proceed to fill the boiler with water. When water reaches the LWCO position, the amber LED will continue to blink. Press the TEST/RESET
button to reset the control from lockout. The burner should fire. If the burner does not fire, refer to the Trouble Shooting instructions below.
4.
Turn off the power to the boiler and finish filling the system.
5.
Before leaving the job, power up the system and push the TEST/RESET button on the Model 1100M to simulate a low water condition. The
amber “LOW WATER” LED should illuminate and the burner should shut down.
6.
To test the lockout feature, push and hold the TEST/SETTINGS button for 30 seconds. The “LOW WATER” (amber) LED will begin to blink, indi-
cating the control has locked out the burner circuit in a low water condition. After the LED begins blinking, release the button. The “LOW
WATER” LED should continue to blink and the burner should remain off. Press the TEST/SETTINGS button briefly to manually reset the control.
TROUBLE SHOOTING
IF THE BURNER DOES NOT SHUT DOWN
(when water is below the probe or when the TEST button is pressed)
1.
Turn off boiler power immediately and re-check wiring.
2.
Turn off boiler power and drain system. Remove low water cut-off
and check for adequate clearance – no metal should be in contact
with the control’s metal probe tip.
IF THE BURNER DOES NOT FIRE
1.
Make sure water has reached the level of the control.
2.
Check green wire for proper ground. Make sure the wire is attached
to an unpainted surface that is electrically common to the boiler.
3.
Check to ensure the control’s metal probe tip is not surrounded by
an air pocket. Shut down power to the boiler and slowly loosen,
but do not remove, the control. Allow any air to escape. When
water begins to seep past threads, retighten the control.
4.
Re-check wiring and check for correct incoming voltage.
4
1100M-0913
SERVICE & MAINTENANCE
EVERY YEAR
Check control operation annually by pressing the TEST/RESET button. The amber “LOW WATER” LED should illuminate and
the burner should shut down.
5 YEARS
Remove the low water cut-off every five years and clean all surfaces in contact with water.
126 Bailey Road, North Haven, CT 06473 • Phone (203) 776-0473 • FAX (203) 764-1711 •
www.hydrolevel.com
