Honeywell L4103A1019 High Limit Aquastat Controller

Honeywell L4103A1019 High Limit Aquastat Controller. The L4103A,B is an immersion-type controller for oil-fired water heaters. The Aquastat® Controller senses water temperature and cycles the burner through the oil primary. The high-limit controller breaks the circuit to the burner on a temperature rise past the factory-set setpoint. The L4103C is an immersion-type controller for gas systems that provides water temperature regulation. The high-limit controller breaks the circuit to the burner on a temperature rise past the factory-set setpoint. L4103A,B,C have a sensing element and a high limit sensor with automatic reset. Mounts on a horizontal immersion well in water heater wall. Adjustable temperature setting scale. Fluid-filled element operates SPST, Micro Switch™ snap-acting switch. Integral, nonadjustable high limit. L4103C is an immersion controller for gas systems. L4103A,B is an immersion controller for oil systems.