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Leonard Manuals & User Guides

Leonard manufactures a variety of products, specializing in advanced thermostatic water mixing valves, temperature control systems, and home appliances.

Tip: include the full model number printed on your Leonard label for the best match.

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Leonard Manuals & Support

Leonard is a recognized manufacturer primarily known for its high-quality water temperature controls and thermostatic mixing valves, including models like the Proton Plus and Aquatrol series. The brand's product lines also encompass household appliances such as table-top refrigerators and outdoor decor items like floor fountains. Whether outfitting an industrial water system or equipping a home kitchen, Leonard provides reliable equipment backed by clear installation, operation, and maintenance instructions.

Leonard manuals

Latest manuals from manuals+ curated for this brand.

LEONARD 122 L Table Top Refrigerator Instruction Manual

October 19, 2025
LEONARD 122 L Table Top Refrigerator Product Specifications Product Name: Table-Top Refrigerator Intended Use: Household and similar applications Refrigerant: R600a (HC) Climate Class: Check the rating plate for the ambient…

LEONARD LBN1114X Oven User Manual

September 26, 2022
LEONARD LBN1114X Oven SAFETY INFORMATION Before the installation and use of the appliance, carefully read the supplied instructions. The manufacturer is not responsible for any injuries or damage that are…

TM-600 Thermostatic Water Mixing Valve Systems

Installation Guide
TM-600, TM-600-LF, TM-650, TM-800, TM-800-LF, TM-850, TM-850-LF, TM-5100, TM-5100-LF, TM-5125, TM-5125-LF, TM-600 Thermostatic Water Mixing Valve Systems, Thermostatic Water Mixing Valve Systems, Water Mixing Valve Systems, Mixing Valve Systems, Valve…

Leonard manuals from online retailers

Leonard support FAQ

Common questions about manuals, registration, and support for this brand.

  • How do I calibrate the temperature on my Leonard Proton Plus valve?

    Enter the CALIBRATION menu to record the initial Full Valve Sweep count value. Adjust the set point by pressing the key sequence Down, Up, Down, ENTER, use the arrow keys to adjust, and press ENTER to save.

  • What is the recommended maintenance for Leonard thermostatic valves?

    Thermostatic water mixing valves must be regularly maintained and cleaned for best performance. The frequency of cleaning depends on local water conditions and usage as outlined in the maintenance guide.

  • How can I adjust the high-temperature limit stop on Leonard valves?

    Many Leonard valves, like the Aquatrol 4500 and TM-600, feature an adjustable high-temperature limit stop. Turn the valve to maximum hot and adjust the stop mechanism following the manual's specific reset instructions to prevent scalding.

  • Where can I find replacement parts for my Leonard mixing valve?

    When ordering replacement parts, ensure you provide the valve serial number stamped on the valve cover. Contact Leonard Valve Company at info@leonardvalve.com or an authorized distributor.