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LENNOX Ignition Control Board: Mfr Part # 49W66 - Replacement HVACR Controls, Switches & Thermostats
LENNOXReplacement HVACR Controls, Switches & Thermostats

LENNOX Ignition Control Board: Mfr Part # 49W66

LENNOX Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Ignition Control Board.

SKU 3G-OTH-107253

Brand
LENNOX
Item
Ignition Control Board: Mfr Part # 49W66
Part Number
49W66
Category
Replacement HVACR Controls, Switches & Thermostats
Available to Order
Also known as:49W66LENNOX
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Technical Specifications

LENNOX
Manufacturer Part Number
49W66
Product Type
Ignition Control Board

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LENNOX Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

LENNOX Replacement HVACR Controls, Switches & Thermostats. Specifications: Product Type: Ignition Control Board.

Frequently Asked Questions

What is the LENNOX 49W66 Ignition Control Board used for?

The LENNOX 49W66 Ignition Control Board is a replacement HVACR control that manages the ignition sequence in compatible LENNOX gas furnaces and heating systems. It ensures safe and reliable burner ignition by controlling spark or hot-surface igniter operation, flame sensing, and system timing.

What are the specifications of the LENNOX 49W66 Ignition Control Board?

The LENNOX 49W66 is an Ignition Control Board with manufacturer part number 49W66. It is designed as a direct replacement for specific LENNOX furnace models. Key specs include its product type as an ignition control board and its OEM part number for accurate cross-referencing.

Where to buy the LENNOX 49W66 Ignition Control Board worldwide?

3G Electric supplies the LENNOX 49W66 Ignition Control Board to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to order this genuine LENNOX replacement part for your HVACR system.

How to install the LENNOX 49W66 Ignition Control Board?

Installation of the LENNOX 49W66 Ignition Control Board requires disconnecting power, removing the old board, and mounting the replacement in the same orientation. Connect all wiring per the furnace wiring diagram, ensuring proper grounding. Always follow LENNOX service instructions and local codes for safe operation.

Used in

Common applications for LENNOX
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
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LENNOX Products

3G Electric supplies LENNOX replacement hvacr controls, switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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