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WHITE-RODGERS 50A55 843S1 Integrated Furnace Control - Hot Surface Ignition Controls
WHITE-RODGERSHot Surface Ignition Controls

WHITE-RODGERS 50A55 843S1 Integrated Furnace Control

The WHITE-RODGERS Integrated Furnace Control: Universal (SKU 3G-OTH-67577) is a hot surface ignition control operating at 24V AC. It features a 5-minute lockout and 30-second pre-purge, and is designed as a…

SKU 3G-OTH-67577

Also listed as: 50A55843S1 · 50A55-843S1

Brand
WHITE-RODGERS
Item
50A55 843S1 Integrated Furnace Control
Part Number
50A55 843S1
Category
Hot Surface Ignition Controls
Available to Order
Also known as:50A55 843S1WHITE-RODGERS
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

WHITE-RODGERS
Manufacturer Part Number
50A55 843S1
Type
843
AC
24V
Lock Out
5 min
Pre-Purge
30 sec
Product Type
Integrated Furnace Control
Control Voltage
24V AC
Replacement for OEM Brands
Trane

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WHITE-RODGERS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WHITE-RODGERS Integrated Furnace Control: Universal (SKU 3G-OTH-67577) is a hot surface ignition control operating at 24V AC. It features a 5-minute lockout and 30-second pre-purge, and is designed as a replacement for Trane OEM systems (MPN 50A55 843S1).

Frequently Asked Questions

What is the WHITE-RODGERS Integrated Furnace Control 50A55 843S1 used for?

This universal integrated furnace control is used in HVAC systems to manage hot surface ignition, pre-purge, and lockout sequences. It operates at 24V AC and is designed as a replacement for Trane OEM systems, ensuring reliable furnace operation in residential and light commercial applications.

What are the specifications of the WHITE-RODGERS 50A55 843S1?

The WHITE-RODGERS Integrated Furnace Control (MPN 50A55 843S1) operates at 24V AC, features a 5-minute lockout and 30-second pre-purge. It is a universal hot surface ignition control, type 843, designed to replace Trane OEM systems. The SKU is 3G-OTH-67577.

Where to buy the WHITE-RODGERS 50A55 843S1 worldwide?

You can source the WHITE-RODGERS 50A55 843S1 from 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 integrated furnace control.

How to install the WHITE-RODGERS Integrated Furnace Control 50A55 843S1?

Installation requires disconnecting power, mounting the control, and wiring per the manufacturer's diagram. Ensure 24V AC supply and proper grounding. Set dip switches for pre-purge and lockout timing. Always follow local codes and the WHITE-RODGERS manual for safe operation.

Used in

Common applications for WHITE-RODGERS
Commercial rooftop units — White-Rodgers 36H32-304 universal ignition gas valve for 230,000 BtuH single-stage heating sections
Industrial makeup air heaters — White-Rodgers 36H64-463 dual-stage gas valve for staged combustion control up to 300,000 BtuH
Residential furnaces — White-Rodgers 36G22-254 universal ignition gas valve rated at 140,000 BtuH for direct spark or hot surface ignition
HVAC fan control — White-Rodgers 90 372S1 SPDT fan-control relay with 120V AC coil for blower switching
Industrial control panels — White-Rodgers 4E944 surface-mounted DPDT relay rated 15 A at 277V AC for load switching
Light commercial heating — White-Rodgers 36H33-412 single-stage gas valve rated at 300,000 BtuH for high-capacity burners
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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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