Resideo High & Low Limit Aquastat, 10°F Fixed, 10-25°F Differential

High limit, low limit and/or circulator controllers used to regulate boiler water temperature in gas- or oil-fired hydronic heating systems. Features An immersion type liquid-filled sensing element actuates two snap switches. One switch operates as a high limit control. The other switch operates as a low limit and/or circulator control, depending on the model. Controller may be mounted in any positioning and needs no leveling. Separate, easy-to-read, calibrated dial and setpoint adjustments for each switch. Differential adjustment on low limit or circulator switch. All adjustments accessible inside front cover. Push-in terminals for quick connecting. Single sensing element for easy installation. One SPST and one SPDT snap switches act independently at respective temperature settings.