Warrick 16M1C40606 Water Level Control

The Warrick 16M1C40606 is a rugged, 120V solid-state liquid level control designed for demanding HVACR and industrial water management applications. Engineered with a microprocessor-based design, this Series 16M module provides high-reliability conductivity-based level sensing without moving parts to foul or fail. This specific unit is factory-set with a 26K Ohm sensitivity, making it ideal for monitoring domestic water, condensate, or boiler feedwater. The open-board control configuration features standard spade terminals for simplified field wiring and rapid integration into existing control panels. With its SPDT (Single Pole Double Throw) contact design rated for 10A at 120VAC, this controller excels in single-level service or differential "pump up" and "pump down" sequences. Its compact, economy-priced footprint ensures precise liquid level monitoring even in high-temperature environments ranging from -40°F to 150°F, providing the microprocessor reliability modern contractors require for critical water level sensor installations.

• Conductivity-Based Detection: Utilizes the liquid's own conductive properties to eliminate the mechanical failure points common in older float-style switches.
• High Current Load Contacts: Integrated SPDT relay supports up to 1/3 HP motors, often removing the need for auxiliary slave relays.
• Universal Application Support: Suitable for everything from irrigation and sump pump drainage to high-level alarms and steam generator feedwater management.
• Industrial Durability: Solid-state components are designed to withstand the vibration and thermal cycling found in commercial HVACR mechanical rooms.
• Simplified Field Service: Spade terminal connections allow for quick diagnostic testing and module replacement during routine maintenance.

Is the 26K Ohm sensitivity adjustable in the field?
No, the 16M1C40606 is a factory-set module. For field-adjustable requirements, the 16VM series should be considered, though 26K Ohms is the standard "sweet spot" for most municipal water systems.

What type of wire should be used for the probes?
For optimal performance and to maintain sensitivity over distance, use #14 or #16 AWG copper wire (type MTW or THHN). Ensure probe wires are not run in the same conduit as high-voltage power lines to prevent electrical noise interference.

Does this unit require a specific ground probe?
While you can use a metal tank wall as a ground reference, we recommend using a dedicated ground probe to avoid issues with tank scaling or mineral buildup that can impede conductivity and cause false readings.

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.