Model # L7224U1002

Internet #205338912

Store SKU #821054

Store SO SKU #218061

Honeywell Universal Electronic Oil Aquastat


Universal Electronic Oil Aquastat

$16530 /each
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Frequently Bought Together

Product Overview

The L7224U Oil Electronic Aquastat Controller provides electronic temperature sensing in a UL limit-rated controller. It controls the circulator, oil burner and boiler temperature. It also provides status, LED diagnostic and EnviroCOM communication.

  • Well mount, horizontal or vertical position, or flush mounted remote from the well
  • Low limit can be disengaged for cold start boilers
  • L7224U is "outdoor temperature reset" ready when connected to a Honeywell outdoor reset kit, this option is intended for all applications except for tankless coil systems for domestic hot water
  • Intended for professional installation only
  • 2012 DOE compliant
  • Click here for more information on Electronic Recycling Programs

Info & Guides

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Product Depth (in.)
Product Height (in.)
Product Width (in.)


Accessory type
Heating Product Type
Heating Technology Type
Product Weight (lb.)

Warranty / Certifications

Manufacturer Warranty
1 year

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Customer Questions & Answers

is it dual aquastat ?

is it dual aquastat ?
Asked by: dinty2
This is a universal triple acting aquastat. So it has the following functions. High limit, low limit and pump relay. You can use all three functions or just the ones you want.
Answered by: chris
Date published: 2016-11-07

with boiler up to heat the contacts for the circulator do not have 120v and i do not have the c1 led lit, only see tt led lit

not sure if i have L7224 or L7248 but cannot access " c1output on or off", Ll, or LdF. do i have the L7248 which doesnt access those parameters? do i need a seperate L6006 low limit controller for the circulator output to work? the boiler works fine with the aquastat, if i disconnect the circulator and apply 120v to the circulator the circulator runs and boiler cycles accordingly. please help!
Asked by: stan
I am sorry I was out of the office for a few days. Give me a call and I will try to help you figure this out. Chris 978 651 3301
Answered by: chris
Date published: 2016-09-26

I cannot see a mounting portal, where is access to the sensor (well )? the sensor goes into it

Asked by: Sonny
Dear Valued Home Depot Customer, We reached out to MFG for more information and below is their response. " The Honeywell L7224U1002 is a safety control for boilers and should only be installed by a licensed, qualified HVAC contractor. Please visit the following site as a contractor locator under heating, cooling and electical: Honeywell Customer Care " Thanks The Home Depot User Generated Content Team
Answered by: THDCustomerService
Date published: 2016-02-10

I need a Honey Well Aquastat P/N L8124C1003 do you have any available?

Asked by: Sonny
Thank you for your recent inquiry with The Home Depot. Unfortunately, I need more information from you in order to properly address your question. For any other questions, please call us at Customer Service 800-430-3376. Thank you for shopping Home Depot.
Answered by: THDSupport
Date published: 2016-06-09
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Customer Reviews

Universal Electronic Oil Aquastat is rated 1.0 out of 5 by 1.
Rated 1 out of 5 by from Put it in and the next day stopped working. Went... Put it in and the next day stopped working. Went to try and return it and was told that I was not able to because it was installed.
Date published: 2017-04-25
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