Warrick 26MC1M0E Liquid Level Control

The Warrick 26MC1M0E Liquid Level Control is a professional-grade, solid-state low water cutoff (LWCO) solution engineered for demanding commercial and industrial boiler applications. Operating on a 120Vac supply voltage, this conductivity-based level control is a critical component for maintaining compliance with CSD1 boiler safety standards. This specific module features a 26,000 ohm sensitivity and utilizes a direct acting mode of operation, ensuring precise relay response when probe-to-liquid contact is established. As part of the Warrick 26M Series, this 11-pin octal plug-in module is designed for high-reliability performance in extreme conditions, featuring powered SPDT relay contacts (1 NO / 1 NC) rated for 10A resistive loads. The integrated manual reset function and specialized power outage feature prevent nuisance shutdowns by automatically resetting only when safe power conditions are restored, making it a staple for veteran technicians managing critical limit control systems.

Key Benefits for Contractors:

• System Compliance: UL 353 Listed and engineered to meet strict CSD1 safety requirements for boiler low-water protection.
• Advanced Logic: Includes a manual reset with power outage feature to ensure the system remains in a safe state until manual intervention or stable power recovery.
• Durable Construction: Solid-state design provides high vibration resistance and long-term reliability compared to mechanical float switches.
• Serviceability: The 11-pin octal plug configuration allows for rapid field replacement without re-wiring terminals (requires compatible 11-pin socket, not included).
• Diagnostics: Features an onboard LED indicator for immediate visual monitoring of relay status and sensor activity.

Common Technical Questions:

What is the difference between direct acting and inverse acting for this model?
In direct acting mode (like this 26MC1M0E), the relay energizes when the liquid touches the high-level probe. This is standard configuration for low water cutoff modules where the internal relay must trip to de-energize the burner circuit when levels drop below the probe.

Does this unit include the mounting base?
No, this is the module only. You will need a standard 11-pin octal socket (typically a DIN-rail or surface mount base) to complete the installation. Ensure your existing base is in good condition to prevent conductivity issues at the pins.

Can I use this for high-sensitivity applications like distilled water?
The 26,000 ohm sensitivity is optimized for standard boiler water and general purpose level control. For high-resistance liquids like ultra-pure or distilled water, a higher kilo-ohm sensitivity module from the Gems/Warrick catalog may be required.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.