Product Overview

S T E A M B O I L E R C O N T R O L S
Low Water Cut-Offs – Residential/Commercial
CG400 Series
•
Intermittent Level Test – Maximum Protection for
Foaming Boilers
•
15 Second Burner Off Delay
•
30 Second Burner On Delay
•
Automatic Reset
•
Low Water Indicating Light
•
Direct Boiler Mounting – Eliminates Blowdowns
MODEL VOLTAGE DESCRIPTION/OPERATION
CG400-1090 24 VAC Burner circuit contacts open after 15 second delay in a low water condition.
CG400-2090 24 VAC Delay prevents short cycling caused by momentary fluctuations in the boiler
CG450-1090 120 VAC water level. Automatically reactivates burner circuit 30 seconds after water
CG450-1560 120 VAC reaches the probe, allowing optional water feeder to raise water level above the
CG450-2060 120 VAC probe. Intermittent Level Test (ILT) feature provides maximum boiler protection
by removing power from the burner circuit at set intervals.
왘 Models ending in “1090” perform the ILT every 10 minutes for 90 seconds.
왘 Models ending in “1560” perform the ILT every 15 minutes for 60 seconds.
왘 Models ending in “2060” perform the ILT every 20 minutes for 60 seconds.
왘 Models ending in “2090” perform the ILT every 20 minutes for 90 seconds.
CGT450-2060 120 VAC Same as CG450-2060 (described above) with added feature for boilers equipped
with tankless coils. The CGT450-2060 suspends operation of the Intermittent
Level Test when the boiler is receiving a call for domestic hot water. This feature
ensures continued burner operation during a demand for hot water.
U.S. Patent No. 5,739,504; 6,390,027
Specifications Model CG400 Models CG450
and CGT450
Power Consumption 2.1 VA 4.2 VA
Switching Capacity 50 VA 5.8 FLA, 34.8 LRA
Switch Contacts SPDT SPDT
Max. Steam Pressure 15 PSI 15 PSI
10
Maximum boiler protection –
Even in SURGING and FOAMING boilers.
CycleGard continually monitors the boiler water level like
other probe type cut-offs. But, unlike any other cut-off,
CycleGard uses Intermittent Level Test (ILT) technology to
provide protection against false signals created by foaming
and volatile water conditions in the boiler. CycleGard’s ILT
periodically removes power from the burner circuit. During
this test, foam dissipates and the water level stabilizes –
allowing CycleGard to monitor the true water level in the
boiler. Since 1996, the superior protection of CycleGard has
made it the standard low water cut-off for many of the
industry’s leading boiler manufacturers.
See CycleGard video at www.hydrolevel.com