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LENNOX

Lennox is a manufacturer of heating, ventilation, air conditioning, and refrigeration (HVACR) equipment and components. The company was founded in 1895 and is headquartered in Richardson, Texas. Lennox produces residential and commercial HVAC systems, as well as replacement parts and controls for its installed base. 3G Electric supplies a range of Lennox HVACR components, including pressure switches, thermostats, fan blades, blower wheels, and draft inducers. These parts are used in Lennox furnaces, air handlers, and refrigeration units. The product line includes fixed set-point air pressure switches with auto-reset and open-mounted SPST contacts, operating at 24V AC with a 1/4 in barb sample line connection. Digital thermostats for 24V AC heat and cool systems feature manual changeover, Cool-Heat-Off settings, and Auto-On fan operation. Fan blades are available in a 24-inch diameter aluminum propeller with three blades and a 24° pitch, designed for clockwise facing discharge. Blower wheels are dual-inlet forward-curved types, constructed of steel with concave design and tacked assembly, offered in various diameters, widths, and bore sizes, with clockwise or clockwise/counterclockwise rotation. Furnace draft inducers operate on 115V AC to create proper airflow through the heat exchanger during startup and operation. These components are built to OEM specifications for fit and function in Lennox equipment. 3G Electric supports the Lennox line by stocking these replacement parts and providing specification data for technical buyers. The parts are suitable for maintenance, repair, and retrofit applications in commercial and industrial HVACR systems. 3G Electric ships globally, serving plant engineers, maintenance managers, and procurement specialists who require reliable components for Lennox equipment. The catalog includes detailed specifications such as voltage, rotation, bore size, and connection type to aid in proper part selection. For cross-reference or application assistance, 3G Electric's technical team can provide support based on the published specifications.

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About LENNOX

Lennox is a manufacturer of heating, ventilation, air conditioning, and refrigeration (HVACR) equipment and components. The company was founded in 1895 and is headquartered in Richardson, Texas. Lennox produces residential and commercial HVAC systems, as well as replacement parts and controls for its installed base. 3G Electric supplies a range of Lennox HVACR components, including pressure switches, thermostats, fan blades, blower wheels, and draft inducers. These parts are used in Lennox furnaces, air handlers, and refrigeration units. The product line includes fixed set-point air pressure switches with auto-reset and open-mounted SPST contacts, operating at 24V AC with a 1/4 in barb sample line connection. Digital thermostats for 24V AC heat and cool systems feature manual changeover, Cool-Heat-Off settings, and Auto-On fan operation. Fan blades are available in a 24-inch diameter aluminum propeller with three blades and a 24° pitch, designed for clockwise facing discharge. Blower wheels are dual-inlet forward-curved types, constructed of steel with concave design and tacked assembly, offered in various diameters, widths, and bore sizes, with clockwise or clockwise/counterclockwise rotation. Furnace draft inducers operate on 115V AC to create proper airflow through the heat exchanger during startup and operation. These components are built to OEM specifications for fit and function in Lennox equipment. 3G Electric supports the Lennox line by stocking these replacement parts and providing specification data for technical buyers. The parts are suitable for maintenance, repair, and retrofit applications in commercial and industrial HVACR systems. 3G Electric ships globally, serving plant engineers, maintenance managers, and procurement specialists who require reliable components for Lennox equipment. The catalog includes detailed specifications such as voltage, rotation, bore size, and connection type to aid in proper part selection. For cross-reference or application assistance, 3G Electric's technical team can provide support based on the published specifications.

Common Applications

  • Commercial HVAC — Lennox fixed set-point air pressure switch (57W79) for monitoring airflow in rooftop units
  • Residential heating — Lennox digital thermostat (24Z12) for 24V AC heat and cool control in furnaces
  • Refrigeration — Lennox 24-inch aluminum fan blade (25W67) for condenser air movement
  • HVAC air handling — Lennox dual-inlet forward-curved blower wheel (85L53) for replacement in air handlers
  • Furnace systems — Lennox draft inducer assembly (47M55) for ensuring proper combustion airflow
  • Industrial ventilation — Lennox blower wheel (25W67) for air circulation in commercial HVAC equipment

Frequently asked questions

Common questions about LENNOX from 3G Electric.

What are the electrical specifications of the Lennox fixed set-point air pressure switch?

The Lennox fixed set-point air pressure switch (example MPN 57W79) operates at 24V AC switch voltage. It features auto-reset, open-mounted SPST contacts and a 1/4 in barb sample line connection. This switch is used in HVAC systems to monitor air pressure and ensure proper operation of components such as draft inducers or blowers. The fixed set-point means the switch actuates at a predetermined pressure, simplifying installation and troubleshooting. It is a direct replacement for compatible Lennox equipment.

What are the key features of the Lennox digital thermostat for heat and cool systems?

The Lennox digital thermostat (example MPN 24Z12) is designed for 24V AC heat and cool applications. It has a rectangular shape and manual changeover with system settings of Cool-Heat-Off. The fan setting includes Auto-On. It features a slide switch control and an optional Celsius display. The thermostat supports a range of terminal designations including B/C/G/O/Rc/Rh/W1/Y1. It is a horizontal mount unit suitable for replacement in Lennox systems.

What sizes and configurations are available for Lennox blower wheels?

Lennox blower wheels are dual-inlet forward-curved types with steel construction and concave design. They are available in various diameters (e.g., 10 in, 11 1/2 in, 12 in, 15 in) and widths (e.g., 10 in, 10 1/2 in, 15 in). Bore sizes include 1/2 in, 1 in, and 1 7/16 in. Rotation options include clockwise closed end and clockwise/counterclockwise. Some are tacked assemblies. These wheels are used in Lennox HVAC systems and are direct replacements for specific model numbers.

What is the function of the Lennox furnace draft inducer?

The Lennox furnace draft inducer (example MPN 47M55) is an assembly that creates proper airflow through the heat exchanger during startup and operation. It operates on 115V AC. By ensuring adequate draft, it helps maintain safe and efficient combustion in Lennox heating systems. This component is critical for proper venting of combustion gases. It is a direct replacement part for compatible Lennox furnaces.

What are the specifications of the Lennox 24-inch fan blade?

The Lennox fan blade (example MPN 25W67) is a 24-inch diameter aluminum propeller with three blades and a 24° pitch. It is designed for clockwise facing discharge operation. This fan blade is commonly used in HVAC and refrigeration systems for air movement. The aluminum construction provides durability and resistance to corrosion. It is a direct replacement for Lennox units requiring this size and configuration.

Does 3G Electric supply LENNOX products?

Yes — 3G Electric (S) Pte. Ltd. supplies LENNOX products. We stock the LENNOX catalog and supply genuine factory-original products with full manufacturer warranty and technical support.