– 3 in. If the boiler is heating it will do so until it has reached the high limit and then automatically shut off even if the thermostat is indicating more heat is required. There are separate adjustments and … The HONEYWELL dual Aquastat® controller provides boiler water regulation in gas- or oil-fired hydronic heating systems. (76 mm) Horizontal or Vertical – L6006C1018/U Circulator Control and High Limit and Low Limit SPDT 65°F to 200°F (18°C to 93°C) 5°F to 30°F adj. Honeywell Aquastat Controller, High/Low Limit, 130 to 270°F (54 to 132°C), Fixed Differential 5°F (3°C), Factory Stop 200°F (93°C), 10 ft (3.04 m) Capillary, Multi-Mount L4008A1130 In … (3°C to 17°C adj.) If the thermostat is calling for heat, the boiler will fire until the high limit is reached, then shut off (even if the thermostat is still calling for heat). High limit controller: Shuts off burner when water temperature exceeds high limit setting. $231.06 +$10.15 shipping. (3°C to 17°C adj.) The sensor senses the temperature. l8148a,e,j aquastat® relays thermostat l8148a high limit l6006 low limit controller to line voltage oil burner relay or gas valve circulator jumper power supply. Aquastats usually have a high limit temperature and a lower limit temperature. The Honeywell Aquastat is a controller designed for boiler water control in heating systems that are either oil or gas fired. • Aquastat Controller • Type 3/8 Inch Diameter x 2-7/8 Inch Length Copper Bulb, 3 Inch Length Capillary, Direct Horizontal/Vertical Well Immersion, High Limit, Manual Reset • Temperature Range 130 to 270 Deg F • Maximum Temperature Rating 150 Deg F Burner restarts when temperature drops to high limit setting minus the temperature differential. remove jumper when adding l6006 low limit controller. The immersion-type, liquid-filled sensing element actuates 2 snap switches. The boiler ran up against the high limit (215) once, coasted back down, re-lit, and nearly hit the high limit again before the tank aquastat was satisfied. provide disconnect means and overloadprotection as required. The Aquastat uses an immersion system that has two switches controlling the high and low temperature limits on the heater. High Limit - The aquastat will limit the temperature in the boiler so the boiler does not overheat. This doesn't seem entirely normal, though there is no shortage of heat or hot water. To prevent the boiler from firing too often, aquastats have a high limit temperature and a low limit. item 4 HONEYWELL L8124A, C CONTROL TRIPLE AQUASTAT RELAY CONTROL 4 - … An aquastat is a device used in hydronic heating systems for controlling water temperature. item 3 Honeywell L8124A1007 Aquastat 120VAC High Limit Circulation Control Triple Relay 3 - Honeywell L8124A1007 Aquastat 120VAC High Limit Circulation Control Triple Relay. L4006A,B,E,H AQUASTAT® CONTROLLERS 60-0915—5 4 OPERATION For proper selections of settings, follow boiler manufacturer recommendations: 1. control case must be connected to earth ground. An Aquastat is a device used in water heating systems. page 5: wiring diagrams It is used to control water temperature. One switch operates as a high limit control, the other switch operates as a low limit and/or circulator control. and High Limit or Low Limit SPDT 100°F to 240°F (38°C to 116°C) 5°F to 30°F adj. Most aquastats have a sensor that is inserted in an immersion well. The immersion well is located inside the boiler where the water circulates. L8124G1020 Honeywell High-limit triple Aquastat relay with SPST switching action.
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