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General| Model | RB-24E |
|---|---|
| Frequency | 50/60 Hz |
| Brand | Xylem McDonnell & Miller |
| Part Number | RB-24E |
| Category | Control Unit |
| Switch Type | SPDT |
| Housing Material | NEMA 1 |
| Approvals | UL, CSA |
| Voltage | 24V |
| Voltage Rating | 24V AC/DC |
| Operating Temperature Range | 32°F to 120°F (0°C to 49°C) |
Key safety precautions for installation, operation, and potential hazards. Includes warnings about electrical shock and chemical exposure.
Explains the function of the RB-24E in preventing burner cut-off during unsafe water loss.
Details operating ranges, pressure, temperature, electrical ratings, and enclosure type.
Highlights critical applications where the RB-24E should not be used, such as steam boilers or millivolt systems.
Lists available adapters for different boiler system connections and their specific applications.
Guidance on selecting the optimal placement for the probe control on the boiler or piping.
Illustrates recommended mounting positions for the low water cut-off on the boiler or in a pipe tee.
Specifies critical clearance requirements for the probe from internal metal surfaces.
Detailed wiring instructions for boilers using a basic series circuit for operation.
Wiring guide for systems with an aquastat relay, connecting the RB-24E in series with the gas valve.
Wiring diagram for boilers utilizing relays to manage burner and circulator circuits.
Instructions for wiring the RB-24E based on boiler diagrams indicating LWCO placement.
Step-by-step instructions for physically mounting the probe and tightening connections.
Procedure to verify the correct operation of the low water cut-off after installation.
How to use the test button to simulate a low water condition and verify safety shut-off.
Diagnostic steps for common operational failures like failure to turn off or turn on.
Recommended intervals for testing, inspection, cleaning, and replacement of the low water cut-off.
Terms and conditions of the warranty for commercial buyer purchases.
Warranty coverage and limitations for personal, family, or household use.
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