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General| Series | 64 Series |
|---|---|
| Manufacturer | Xylem McDonnell & Miller |
| Maximum Hot Water Temperature | 250°F |
| Maximum Temperature | 250°F |
| Connection Size | 1/2" NPT |
| Material | Cast Iron |
Details on the operation parameters and electrical specifications for the Low Water Cut-Off.
Essential safety precautions and warnings for installation, operation, and maintenance of the unit.
Guidance on positioning the low water cut-off relative to the gauge glass for steam boilers.
Step-by-step instructions for piping and connecting the Model 64 low water cut-off.
Procedure to test the Model 64's functionality before concluding the installation.
Instructions for locating the low water cut-off based on boiler manufacturer specifications.
Detailed steps for connecting the Model 64 to hot water boiler systems using equalizing lines.
Verification procedure for the Model 64's operation in hot water boiler installations.
Procedure for installing the Model 764 when a 2 1/2 inch tapping is available on the boiler.
How to install the Model 764 on hot water boilers lacking a 2 1/2 inch tapping.
Testing the Model 764 functionality after installation and before system filling.
Steps to prepare the boiler, including gauge glass removal, before installing Model 64-A.
Detailed piping and connection instructions for the Model 64-A using quick hook-up fittings.
Ensuring correct operation of the Model 64-A by performing a pre-operation test.
Crucial safety warnings regarding electrical connections, power, and series wiring.
Explanation of the twin switch functionality and movable electrical connector positions.
Mandatory requirement to wire low water cut-off circuits in series with other boiler controls.
Specific wiring schematic, caution, and reset button operation for Model 64A-M.
Recommended routine maintenance for the low water cut-off control.
Diagnosing and resolving problems like burner not shutting off or feeder issues.
Details on commercial and limited consumer warranties for the product.
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