McDonnell & Miller 140100 Model 61 Mechanical Low Water Cut-Off
McDonnell & Miller 140100 Model 61 Mechanical Low Water Cut-Off
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Apply for Trade Account & Terms →| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 140100 |
| Model Designation | 61 |
Ensure the longevity and safety of your boiler system with the McDonnell & Miller 140100 mechanical low water cut-off. This essential safety device, model 61, is designed to monitor water levels accurately, automatically interrupting the burner circuit if levels drop below a safe operating threshold to prevent catastrophic dry-firing damage.
The unit utilizes a precision-engineered float mechanism that responds to fluctuating water levels within the boiler. When the water level decreases, the internal float drops, mechanically breaking the electrical contact to shut down the heating element or burner, providing an immediate and reliable fail-safe for residential and commercial hydronic installations.
Key System Performance Baselines:
- Automatic Shutdown: Prevents dry-firing and boiler burnout during low-water events.
- Rugged Mechanical Design: Proven float-activated technology for long-term operational reliability.
- Universal Safety Compliance: Engineered to meet stringent industry standards for boiler control and safety management.
⚠️ Application Profile: Ideal for steam and hot water boilers where reliable water level monitoring is required to maintain system integrity and prevent costly repairs.
