Description
Honeywell L4006E1067 High Limit Manual Reset Aquastat
130°F to 270°F Range | Manual Reset | 3" Capillary | SPST Switch
The Honeywell L4006E1067 is a reliable high limit temperature aquastat controller designed for boilers, storage tanks, and hydronic systems requiring precise temperature limiting with manual reset safety. Built with a robust enclosed microswitch that operates on temperature rise, this device helps protect heating equipment by preventing overheating. It features a wide temperature range of 130°F to 270°F, making it ideal for a variety of commercial and residential heating applications.
Key Features
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Manual reset high limit control for safe temperature regulation
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Temperature range from 130°F to 270°F with factory stop set at 250°F (121°C)
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Enclosed micro switch with snap-acting contacts that break on temperature rise
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Visible control scale and external adjustment screw for easy and precise setpoint tuning
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Versatile mounting options including horizontal or vertical bulb insertion
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Compatible with direct or well immersion sensing elements
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Optional strap-on mounting models available
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Remote bulb models available for duct or outside air temperature sensing
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UL limit rated for safety and reliability
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Includes heat-conductive compound for improved sensing accuracy
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1/2" NPT male threaded well spud (well not included)
Specifications
| Specification | Details |
|---|---|
| Application | Manual Reset High Limit Control |
| Bulb Size | 3/8" diameter x 2-7/8" length |
| Capillary Length | 3" |
| Switch Type | SPST (Single Pole Single Throw) |
| Switch Action | Contacts break on temperature rise |
| Temperature Range | 130°F to 270°F |
| Factory Stop | 250°F (121°C) |
| Electrical Ratings | 8A @ 120 VAC, 5.1A @ 240 VAC, 0.25A @ 0.25–12 VDC |
| Electrical Ratings (ALR) | 48A @ 120 VAC, 30.6A @ 240 VAC |
| Mounting | Horizontal or vertical bulb insertion |
| Well Included | No |
| Well Spud Size | 1/2" NPT male thread |
| Dimensions (HxWxD) | 5-5/8" x 2" x 2-1/8" |
| Max Ambient Temp | 150°F |
