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WHITE-RODGERS Integrated Furnace Control: Universal, 24V AC, 5 min Lock Out - Hot Surface Ignition Controls
WHITE-RODGERSHot Surface Ignition Controls

WHITE-RODGERS Integrated Furnace Control: Universal, 24V AC, 5 min Lock Out

The WHITE-RODGERS Integrated Furnace Control (MPN 21M51U-843) is a universal hot surface ignition control operating at 24V AC. It features a 5-minute lockout and a 15-second pre-purge. This control is designed as a…

SKU 3G-OTH-67610

Brand
WHITE-RODGERS
Item
Integrated Furnace Control: Universal, 24V AC, 5 min Lock Out
Category
Hot Surface Ignition Controls
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Technical Specifications

WHITE-RODGERS
Manufacturer Part Number
21M51U-843
Product Type
Integrated Furnace Control
Control Voltage
24V AC
Replacement for OEM Brands
White-Rodgers
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WHITE-RODGERS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WHITE-RODGERS Integrated Furnace Control (MPN 21M51U-843) is a universal hot surface ignition control operating at 24V AC. It features a 5-minute lockout and a 15-second pre-purge. This control is designed as a replacement for White-Rodgers OEM brands.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the WHITE-RODGERS 21M51U-843 integrated furnace control used for?

The WHITE-RODGERS 21M51U-843 is a universal hot surface ignition control used in gas furnaces. It manages ignition sequencing, including a 15-second pre-purge and a 5-minute lockout, ensuring safe and reliable burner operation in residential and light commercial HVAC systems.

What are the specifications of the WHITE-RODGERS 21M51U-843?

The WHITE-RODGERS 21M51U-843 is a universal integrated furnace control with a control voltage of 24V AC. It features a 5-minute lockout and a 15-second pre-purge. This part is designed as a replacement for White-Rodgers OEM brands and is classified as a hot surface ignition control.

Where to buy the WHITE-RODGERS 21M51U-843 worldwide?

You can source the WHITE-RODGERS 21M51U-843 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time on this universal furnace control.

How to install the WHITE-RODGERS 21M51U-843 integrated furnace control?

Installation of the WHITE-RODGERS 21M51U-843 requires disconnecting power, mounting the control, and wiring per the manufacturer's diagram. Ensure the 24V AC supply matches specifications. After installation, verify the 15-second pre-purge and 5-minute lockout sequences. Always follow local codes and the furnace manual.

Used in

Common applications for WHITE-RODGERS
Residential furnace replacement — White-Rodgers 767A-377 hot surface igniter for Trane gas furnaces
Commercial HVAC control retrofits — White-Rodgers 90-T60C3 Class 2 transformer for 24V control circuits
Hydronic zone heating systems — White-Rodgers 13 61 104S1 2-way zone valve for multi-zone temperature control
Plenum temperature regulation — White-Rodgers 05D51 035S1 fan and limit control for forced-air furnaces
OEM furnace control board replacement — White-Rodgers 50N02A-820 integrated ignition control for Trane systems
Fan relay and transformer integration — White-Rodgers 90 118ES1 for compact HVAC control panels

WHITE-RODGERS Products

3G Electric supplies WHITE-RODGERS hot surface ignition controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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