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Resideo by Honeywell L4006A1678 Aquastat Controller 100-240F Temperature Range

Manufacturer

Part Number

L4006A1678
Sale Price

$171.29

2 left at this price

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Usually delivered within 2 days

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FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Resideo by Honeywell L4006A1678 is a high-quality aquastat controller designed for precise temperature management in hydronic heating systems. This break-on-rise aquastat provides reliable control for boilers, water heaters, and other liquid-temperature applications.

Key Specifications:

  • Temperature range: 100°F to 240°F for versatile application control
  • Adjustable differential: 5°F to 30°F allows customized temperature swing settings
  • Break-on-rise operation: Opens circuit when temperature increases above setpoint
  • 3-inch capillary length for flexible mounting and sensing locations
  • Direct immersion sensing element for accurate temperature monitoring
  • Rugged construction suitable for commercial and residential installations

This aquastat controller is ideal for high-limit protection, circulator control, and boiler temperature management. The adjustable differential feature allows technicians to fine-tune system performance and prevent short cycling. The compact design and direct-mount sensing bulb ensure reliable temperature detection and quick response to system changes.

The product was delivered in a couple of days over the 4th of July weekend in perfect condition. I had to send it back though because it didn't fit the existing bracket on my boat. I was not able to verify specs on your website so I did not realize that I needed to order a look-alike product from another company. Their product was half the price, but I am still waiting for delivery. Your customer service was incredible and you handled the return with very little effort on my part.

Quick shipping.

Good

Smooth transaction and fast shipping. Will definitely order from this company again in the future.

User friendly

Quick and easy

Thanks

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