Honeywell L4079B1033 Pressuretrol 2-15 PSI Manual Reset SPST

Honeywell L4079B1033 Non-Mercury Pressuretrol® Manual Reset Control – 2 to 15 PSI

The Honeywell L4079B1033 is a professional-grade manual reset high-limit pressure control designed for steam boiler systems and industrial heating applications. This non-mercury Pressuretrol provides safety limit protection for pressure systems including steam, air, non-combustible gases, and non-corrosive fluids.

The manual reset feature ensures that once the limit is tripped, the system cannot restart until physically reset — providing an added layer of safety for commercial boiler operations. The trip-free mechanism prevents overriding the limit by holding down the reset button.

Key Specifications:
• Adjustable pressure range: 2–15 PSI
• 1/4″ FPT (NPT) pressure connection
• SPST snap-acting switch
• Rated 9.8 amps @ 120V / 4.9 amps @ 240V
• Non-mercury environmentally compliant design

Ideal For:
• Commercial steam boilers
• High-limit pressure safety control
• Industrial gas-fired heating systems
• HVAC pressure safety applications

Direct replacement for older mercury-based models with identical mounting footprint.

Important Notice – Propane Parts, Accessories, and Regulators

This product, including but not limited to propane parts, accessories, fittings, hoses, valves, and regulators, must be installed and serviced by a licensed professional in accordance with all applicable local, state, and federal codes, regulations, and standards.

The seller assumes no responsibility for the installation, inspection, application, maintenance, or use of this product.

It is the sole responsibility of the buyer to ensure the product is appropriate for their intended application and that it is installed correctly by a qualified individual.

Improper installation, maintenance, or use of propane products may result in serious injury, death, fire, explosion, or property damage.

The buyer accepts all risks, liabilities, and potential consequences associated with the use of this product.

By purchasing this item, the buyer acknowledges that they have read, understood, and agreed to these terms and confirm that installation and use will be conducted by a properly licensed and qualified professional.