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The Taco Low Water Cutoff (LWCO) provides accurate and dependable protection for all types of boilers, from small residential hot water boilers to large industrial steam units. The LWCO is a probe-style, microprocessor-based control that detects the fluid level in hot water and steam boilers and reacts when the level falls below the minimum safe operating level specified by the boiler manufacturer.

The Taco LWCO can act as either the primary or secondary low water cutoff on low-pressure steam boilers, the primary limit control on hot water boilers or to protect pumps from running dry in condensate receiver tank applications. The LWCO can also activate alarm systems or automatic water feeders.

Features include:
Patented Adjustable Probe Sensitivity
External LEDs and Simplified Wiring for Easy Installation and Testing
Automatic or Manual Reset Mode
Available in 24 VAC or 120 VAC
Standard On-Board (NEMA 1) or Remote (NEMA 4) Probe 1/2  or 3/4  NPT Connection
LT Models Include External Test Button, Adjustable Delay On Break (DOB) and Delay or Make (DOM)
Replaces LTA1203S-1
Steam Pressure: 15 psi
Hot Water Pressure: 160 psi
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Hot Water Boilers
Steam Boilers
Max Pressure (PSI):
15 psi (Steam)
Reset Type:
Max Probe Temp:
Max Ambient Temp (°F):
Delay on Make Timer:
0 seconds 15 seconds
Connection Type:
Thread Size:
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