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LENNOX

Lennox is a manufacturer of heating, ventilation, air conditioning, and refrigeration (HVACR) equipment and replacement parts, with a history dating back to 1895 when it was founded in Marshalltown, Iowa, USA. The company produces a broad range of residential and commercial HVACR systems, including furnaces, air conditioners, heat pumps, and packaged units, as well as a comprehensive line of replacement components for service and maintenance. 3G Electric supplies Lennox replacement parts globally, focusing on components that are critical to the operation and repair of HVACR systems. The product families available include blower wheels, induced draft blowers, limit switches, thermostats, heat exchanger assemblies, and other controls and ventilation parts. These components are designed to meet original equipment specifications, ensuring compatibility and performance in Lennox systems. For example, blower wheels such as the 31G67 (compatible with CMPE100U4B) and the 85L53 dual-inlet forward-curved wheel are constructed from steel and available in various diameters and bore sizes, suitable for different airflow requirements. Induced draft blowers like the 56W68 and 19J04 are used in gas-fired furnaces to exhaust combustion gases, while limit switches such as the 26G78 provide over-temperature protection. Thermostats like the 24Z12 offer manual changeover control for heat and cool applications, operating on 24V AC with a slide switch interface. Heat exchanger assemblies, such as the 96L74, are critical for heat transfer in furnaces. These parts are typically rated for standard HVACR voltages and environmental conditions, with blower wheels and draft blowers designed for continuous operation in indoor or protected outdoor installations. 3G Electric stocks these Lennox components to support maintenance, repair, and retrofit projects for plant engineers, maintenance managers, and procurement specialists who require reliable replacements for existing Lennox equipment. The availability of genuine Lennox parts helps ensure system efficiency, safety, and compliance with original design parameters.

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About LENNOX

Lennox is a manufacturer of heating, ventilation, air conditioning, and refrigeration (HVACR) equipment and replacement parts, with a history dating back to 1895 when it was founded in Marshalltown, Iowa, USA. The company produces a broad range of residential and commercial HVACR systems, including furnaces, air conditioners, heat pumps, and packaged units, as well as a comprehensive line of replacement components for service and maintenance. 3G Electric supplies Lennox replacement parts globally, focusing on components that are critical to the operation and repair of HVACR systems. The product families available include blower wheels, induced draft blowers, limit switches, thermostats, heat exchanger assemblies, and other controls and ventilation parts. These components are designed to meet original equipment specifications, ensuring compatibility and performance in Lennox systems. For example, blower wheels such as the 31G67 (compatible with CMPE100U4B) and the 85L53 dual-inlet forward-curved wheel are constructed from steel and available in various diameters and bore sizes, suitable for different airflow requirements. Induced draft blowers like the 56W68 and 19J04 are used in gas-fired furnaces to exhaust combustion gases, while limit switches such as the 26G78 provide over-temperature protection. Thermostats like the 24Z12 offer manual changeover control for heat and cool applications, operating on 24V AC with a slide switch interface. Heat exchanger assemblies, such as the 96L74, are critical for heat transfer in furnaces. These parts are typically rated for standard HVACR voltages and environmental conditions, with blower wheels and draft blowers designed for continuous operation in indoor or protected outdoor installations. 3G Electric stocks these Lennox components to support maintenance, repair, and retrofit projects for plant engineers, maintenance managers, and procurement specialists who require reliable replacements for existing Lennox equipment. The availability of genuine Lennox parts helps ensure system efficiency, safety, and compliance with original design parameters.

Common Applications

  • Commercial HVAC maintenance — Lennox blower wheel 31G67 for replacing worn fans in rooftop units
  • Gas furnace repair — Lennox induced draft blower 56W68 for exhaust system replacement in residential furnaces
  • Thermostat upgrade — Lennox 24Z12 for manual control in heat and cool applications in office buildings
  • Safety system replacement — Lennox limit switch 26G78 for over-temperature protection in industrial heaters
  • Heat exchanger retrofit — Lennox heat exchanger assembly 96L74 for furnace repair in manufacturing facilities

Frequently asked questions

Common questions about LENNOX from 3G Electric.

What types of Lennox blower wheels are available through 3G Electric?

3G Electric supplies several Lennox blower wheels, including forward-curved and dual-inlet designs. Examples include the 31G67 blower wheel (compatible with CMPE100U4B) and the 85L53 dual-inlet forward-curved wheel with a 15-inch diameter, 15-inch width, steel construction, and a 1 7/16-inch bore. These wheels are used in HVACR fans and ventilation systems and are available in CW/CCW rotation configurations.

Are Lennox induced draft blowers available for replacement?

Yes, 3G Electric stocks Lennox induced draft blowers such as the 56W68, 19J04, and 28G66. These components are used in gas-fired furnaces to exhaust combustion gases and maintain proper draft. They are direct replacements designed to match original Lennox specifications for fit and performance.

What Lennox thermostat models are offered?

3G Electric offers the Lennox 24Z12 digital thermostat, which is a rectangular unit for heat and cool applications. It operates on 24V AC, features a manual changeover with system settings of Cool-Heat-Off, and includes a slide switch control. It supports terminals B/C/G/O/Rc/Rh/W1/Y1 and has an optional Celsius display.

Can I find Lennox limit switches for HVACR systems?

Yes, 3G Electric supplies Lennox limit switches such as the 26G78. These limit controls are used to monitor temperature and prevent overheating in furnaces and other HVACR equipment. They are designed to meet original equipment specifications for reliable safety operation.

Does 3G Electric carry Lennox heat exchanger assemblies?

Yes, 3G Electric stocks Lennox heat exchanger assemblies, including the 96L74. These assemblies are used in furnaces for heat transfer and are designed as direct replacements for Lennox systems. They are constructed to match original dimensions and material specifications.

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.