Honeywell L8100B1128 Aquastat Controller 328140-751 and 250k BTUH units to

and 250k BTUH units to ensure correct manifold pressure

providing integrated Low Water Cut-Off (LWCO) functionality with two snap-acting SPDT switches

particularly for evaporator coil sensing

6°F fixed differential with an adjustable 3

This 120V HVAC solenoid utilizes a high-grade electromagnetic coil to manage plunger actuation

Honeywell L8100B1128 Aquastat Controller 328140-751 and 250k BTUH units toThe Honeywell L8100B1128 Aquastat Controller is a high limit immersion controller engineered for precision hydraulic system protection. This SPST aquastat is designed to break the circuit on temperature rise, specifically serving as a secondary safety limit for hydronic heating systems. It features a broad 100 180 degree F operating range with a factory set 190 degree energy cutoff (ECO) to prevent boiler overheating. The unit utilizes a 3 8 inch x 2