Please ensure Javascript is enabled for purposes of website accessibility

We are closed on Friday, July 4th, 2025 for Independence Day weekend and reopening Monday July 7th, 2025. Enjoy and be safe.

We ship to most places in continental USA
Chat with us
Need help
Our Locations

Honeywell R4140G1171/U High/Low limit Aquastat Controller, Unit

SKU
R4140G1171

In Stock. Ships in 1-7 Business Days.

Retail : $4,000.00 - $1400 =
$2,600.00 You Save (35%)
  • Height Inches: 3-7/8"

  • Width Inches: 4-1/8"

  • Depth Inches: 2-3/4"

  • Mount: Horizontal

- +
  • Height Inches: 3-7/8"

  • Width Inches: 4-1/8"

  • Depth Inches: 2-3/4"

  • Mount: Horizontal

Product details

Honeywell R4140G1171/U High/Low limit Aquastat Controller, Unit

High limit, low limit and/or circulator controllers used to regulate boiler water temperature in gas- or oil-fired hydronic heating systems.

Features

  • An immersion type liquid-filled sensing element actuates two snap switches.

  • One switch operates as a high limit control.

  • The other switch operates as a low limit and/or circulator control, depending on the model.

  • Controller may be mounted in any positioning and needs no leveling.

  • Separate, easy-to-read, calibrated dial and setpoint adjustments for each switch.

  • Differential adjustment on low limit or circulator switch on select models.

  • All adjustments accessible inside front cover.

  • Push-in terminals for quick connecting.

  • Single sensing element for easy installation.

  • Two SPST snap switches act independently at respective temperature settings.

Honeywell
See All Honeywell Products

Specification Sheet

Basic Information
MPN ? Manufacturer Part Number R4140G1171
Manufacturer Honeywell
Dimensions and Measurements
Weight ? Weight 0.99
More from Honeywell


By using this site you agree to our Terms, Conditions of Use and Privacy Statement
© 2025 AF Supply Corp. All Rights Reserved.