Description
Ensure precise temperature control in boilers, storage tanks, and hydronic systems with the Honeywell/Resideo L4006A1827/B Aquastat. This rugged, single‑station, single‑function temperature controller provides reliable high or low temperature limit protection with a fixed differential, keeping your system safe, efficient, and compliant.
Features:
- Totally enclosed Micro Switch snap-acting switches operate on temperature rise to setpoint.
- Visible control point scale and external adjustment screw permit easy setting.
- Horizontal or vertical insertion of the sensing element.
- Direct or well immersion of the sensing element.
- Models available for strap-on mounting.
- Remote bulb model may be used to sense air temperature in ducts and in outside air sensing applications.
- Select models include heat-conductive compound.
- Select models have wells.
- UL limit rated device.











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