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Immersion Type Aquastat controllers for hydronic heating systems

L4080B1352/U

Resideo Logo

Immersion Type Aquastat controllers for hydronic heating systems

L4080B1352/U

Reliability for Hydronic Heating Systems

The High Limit Aquastat Controller from Resideo is designed to optimize hydronic heating systems — turning off the burner whenever the boiler water temperature rises to the adjustable set point.

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Specifications

Immersion Type Aquastat controllers for hydronic heating systems
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Warning
This product must be installed by a qualified/licensed contractor and set up with properly calibrated test equipment. Failure to have the installation performed by a qualified professional could result in substantial property damage, and even severe personal injury or death, and Resideo will not be responsible for any damages or injuries resulting from not observing this warning.

Product Overview

Automatic Burner Shutoff

The High Limit Aquastat Controller from Resideo is ideal for hydronic heating systems turning off the burner whenever the boiler water temperature rises to the adjustable set point—to optimize safety.

This controller is 1 in. x 1 in. x 1 in. and is rated at 100-200 degrees F with an 8 degree F fixed differential.

Features include:

  • Immersion type controller
  • Adjustable set point
  • Models available for immersion wells or direct immersion
  • Insertion depth is 1 1/2 to 3 in
  • Models available with second limit switch to shut off all gas to the burner
  • Liquid fill in sensing element expands as the boiler temperature rises
  • At the set point temperature, a diaphragm-actuated snap switch breaks the power supply to the burner primary control
  • Includes a siphon loop

How to get started

cell phone screen showing Resideo Pro App

1. Create a pro portal account

INSTALLERS:

Check with your company admin to get an invite to your company's profile, then create your own account.

COMPANY ADMINS:

If your company does not have a Pro Portal yet, have your company admin sign up here.

Make sure you update your company information and simply upload your company logo.

2. Get the app

Simplify the installation for your technicians and homeowners. Download the App here.

Note: Resideo Pro App currently works with T5 & T6 smart Thermostats

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3. Install

Use the Resideo Pro App to install T6 Pro Smart Thermostat in homes, which will associate those homes to your company. Then you'll be able to select which homeowners see your logo based on the pricing per household (consumer will not be charged).

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