The Resideo L6006A1244 is a versatile control unit that is used to regulate the temperatures of the liquids in HVAC systems. It is used as a circulator and a high/low limit aquastat to maintain a temperature range between 100°F and 240°F. The differential temperature setting is adjustable from 5°F to 30°F to allow for customized system performance. This device uses a copper-detecting ... https://www.partshnc.com/l6006a1244-resideo-100-240f-5-30fdif-spdt-3-insul