
Honeywell L6191B2013U aquastat
Aquastat (thermostat) Honeywell L6191B2013U Dual immersion aquastat 40–95/110°C with regulation and high-limit functions. The Honeywell L6191B2013U Aquastat is a specialized dual immersion thermostat that combines two independent functional modules in one housing: a temperature controller and a safety limit thermostat with manual reset. Both liquid-filled sensors are installed in a common immersion stem and are designed for direct mounting in boilers, water heaters, and other water tanks. The device ensures precise maintenance of the set temperature and reliable protection of equipment from overheating. If your heating or hot water system operates intermittently, does not reach the required temperature, or frequently trips into emergency, the cause may be a faulty original aquastat. Technical specifications: Parameter Value; Part numbers L6191B2013U, 534.109.013; Manufacturer Honeywell (Resideo) / Germany; Mounting type Immersion (with common stem); Sensor type Liquid-filled, two independent; Working medium Water; Module 1 — Control Thermostat: Temperature adjustment range 40–95°C; Switching differential 4°C (fixed); Switch type SPDT; Adjustment External round knob; Module 2 — Limit Thermostat (Manual Reset): Temperature adjustment range 40–110°C; Reset type Manual; Switch type SPDT; Adjustment Internal screw; Common specifications: Electrical load (resistive) 10 A at 250 V AC; Electrical load (inductive) 2.5 A at 250 V AC; Electrical load (locked rotor) 15 A at 250 V AC; Ambient temperature