McDonnell & Miller 110800 Proportion Switch – Model 93 & 94 LWCO
McDonnell & Miller 110800 Proportion Switch – Model 93 & 94 LWCO
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Apply for Trade Account & Terms →| Performance Parameter | Engineering Baseline Value |
|---|---|
| Manufacturer Part Number (MPN) | 110800 |
| Model Designation | Model 93 & 94 LWCO |
The proportion switch regulates the water‑to‑oil ratio in low‑water cutoff (LWCO) boilers to ensure optimal heat transfer and protect equipment. This **110800** unit is engineered specifically for Model 93 & 94 LWCO systems, delivering precise control and quick response.
Operating via a pilot‑valve mechanism, the switch senses water level changes and adjusts the fuel flow accordingly. When low‑water is detected, it trips the boiler’s safety circuit, preventing dry‑fire conditions and extending system life.
Key System Performance Baselines:
- Accurate Ratio Control: Maintains water‑to‑oil ratio within ±2%.
- Rapid Response: Trips low‑water condition in under 2 seconds.
- Durable Construction: Handles temperatures up to 500 °F.
- Low Maintenance: Self‑adjusting pilot reduces service intervals.
⚠️ Application Profile: Ideal for commercial hot‑water heating, industrial boiler rooms, retrofit projects, and new LWCO boiler installations requiring reliable low‑water protection.
