Submittal Sheet

Submittal Data Information
Probe Type Low Water Cut-Off - Foam Compensating
Residential Steam Boilers
Effective: Feb 1, 2011
Supercedes: July 1, 2010
CG400/450
JOB______________ENGINEER_____________CONTRACTOR_____________
Features
Standard Application
Operation
83 Water Street, New Haven, CT 06511
[phone]
www.hydrolevel.com
Item Number Model Number Notes
The CycleGard Principle
Low Maintenance - No moving
parts to stick or hang up as in float
type devices.
Intermittent Level Test - Periodically
monitors settled water level for added
protection for todays smaller, more
efficient steam boilers.
Smart-Cycle - Direct connection to the
burner allows the CycleGard to monitor
boiler firing, so the control initiates a test
sequence only when the burner fires.
Variety of Time Sequences Available
Assures proper control for the boiler and
the installation.
For the highest level of performance
and reliability.
Advanced Micro Processor Design
Specifications
Switch Contacts......................................SPDT
Power Consumption..............................3.6 VA
Input Voltage: (CG400 Series).....24VAC/60HZ
(CG450 Series)...120VAC/60HZ
34.8 LRA
Switch Contact Ratings......................5.8 FLA
Max Steam Boiler Pressure....................15 psi
Alarm Circuit.............50VA@24VAC Pilot Duty
or 125VA@120VAC Pilot Duty
Agency Listing....................................U.L.353
NEMA Classification...........................NEMA 1
Maximum Ambient Temperature............100 F
MATERIALS OF CONSTRUCTION
Control Chassis
Probe Insulator
Control Cover
Probe Tip
Probe Nut
Galvanized Steel
Powder Coated Steel
Glazed Ceramic
316 Stainless Steel
3/4or 1/2 NPT Brass
MODEL SUFFIX REFERENCE TABLE
Models Ending In:
Run Time
Test Time
1090
10 Min.
90 Sec.
1560
15 Min.
60 Sec.
2060
20 Min.
60 Sec.
2090
20 Min.
90 Sec.
Dimensions
CycleGard Low Water Cut-Offs are used as the primary low water cut-off on
residential and light commercial steam heating boilers. They are also used in
certain low pressure steam process applications
Hydrolevel controls utilize a non-moving, heavy duty, electronic probe to sense
liquid levels. The probe can be installed in an equalizing line or directly into
a boiler or tank. When water is in contact with the probe, it completes a circuit
between the stainless steel probe tip and the tank or boiler surface in which
the probe is installed. When the water level drops below the probe, the circuit
opens.
Hydrolevel low water cut-offs for hydronic or steam systems use the water
signal to allow the burner to operate. If the water level drops below the probe,
the circuit opens and the control shuts of the burner. Hydrolevel controls for
steam boilers utilize both on-time and off-time delays to prevent boiler short
cycling and to facilitate proper boiler automatic water feeding.
To provide added protection for todays small, more efficient steam boilers,
the CycleGard low water cut-off is equipped with an Intermittent Level Test
(ILT) feature. This important feature adds an extra level of protection against
false signals that can be caused by foam and volatile water conditions inside
the boiler. The ILT removes power to the burner at preset intervals. During the
test, foam dissipates and the water level stabilizes - allowing the CycleGard
to monitor the true water level in the boiler, assuring safe and accurate operation.