Description
Maintain precise temperature control in your hydronic boiler or storage tank setup with the Honeywell/Resideo L4008A1015/B Aquastat Controller. Engineered for both high- and low-limit applications, this rugged, remote-bulb aquastat offers a broad temperature range of 100–240 °F and an adjustable differential of 5–30 °F, delivering consistent performance in residential and commercial systems.
Features:
- Remote temperature sensing element detects and responds rapidly to temperature changes.
- Totally enclosed Single Pole Single Throw (SPST) Micro Switch snap-acting switch.
- Visible control point scale and external adjustment screw permit easy setting.
- Horizontal and/or vertical mounting of the remote element into boiler, tank, or other container unless otherwise noted.
- UL and CSA listed limit device.












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