White-Rodgers 50A50-571 Integrated Furnace Control Board for Compatible Trane and American Standard Gas Furnaces
- Regular price
- $449.00
- Sale price
- $449.00
- Regular price
-
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Product Description P/N: 50A50-571
Description
The White-Rodgers 50A50-571 is an integrated furnace control board designed to manage ignition, flame sensing, blower operation, inducer control, and safety monitoring in compatible gas-fired furnaces. Manufactured by White-Rodgers, an Emerson brand, the 50A50-571 provides microprocessor-based control for reliable furnace startup, efficient heating operation, and continuous system diagnostics. It is commonly used as an OEM replacement in compatible Trane and American Standard residential furnace systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | White-Rodgers |
| Category | HVAC Control |
| Part Number | 50A50-571 |
| Subcategory | Furnace Control Board |
| Manufacturer | White-Rodgers (Emerson) |
| Product Type | Integrated Furnace Control Board |
| Ignition Type | Single-Stage Hot Surface Ignition |
| Input Voltage | 25 VAC, 50/60 Hz |
| Maximum Input Current | 0.35 A + MV @ 25 VAC |
| Gas Valve Relay Rating | 1.5 A @ 25 VAC |
| Ignitor Relay Rating | 6.0 A @ 120 VAC (Resistive) |
| Inducer Relay Rating | 1.5 FLA / 3.0 LRA @ 120 VAC |
| Circulator Blower Rating | 14.5 FLA / 25.0 LRA @ 120 VAC |
| Trial for Ignition | 4 Seconds |
| Retries | 2 Retries / 3 Ignition Attempts |
| Operating Temperature | -40°F to 175°F (-40°C to 80°C) |
| Compatible Equipment | Trane and American Standard Gas Furnaces |
| Cross Reference | D330927P01, CNT2181 |
| Weight | 1.0 lb (0.45 kg) |
Information About 50A50-571
The 50A50-571 is a single-stage hot surface ignition integrated furnace control developed by White-Rodgers for use in gas-fired forced-air heating equipment. The control board coordinates the operation of the ignitor, gas valve, draft inducer, circulating blower, pressure switch, and flame sensor while continuously monitoring furnace safety circuits through an onboard microprocessor. Operating from a 25 VAC control circuit, it supports multiple approved fuel types, incorporates LED diagnostic indicators, and provides configurable blower delay settings for optimized heating performance. The board is used in numerous OEM Trane and American Standard furnace models and is identified by replacement numbers including D330927P01 and CNT2181.
Key Features:
- Microprocessor-Based Control: Continuously manages ignition, blower, inducer, and safety functions.
- Hot Surface Ignition Control: Designed for single-stage gas furnace ignition systems.
- LED Diagnostics: Built-in flash codes simplify troubleshooting and maintenance.
- Integrated Safety Monitoring: Continuously supervises flame sensing, pressure switch, and thermal protection circuits.
- Configurable Blower Delays: Supports selectable heating and cooling blower off-delay settings.
- Multi-Gas Compatibility: Approved for natural gas, manufactured gas, mixed gas, liquefied petroleum gas, and LP gas.
- OEM Replacement Design: Compatible with Trane and American Standard furnace applications using the 50A50-571 platform.
- Reliable Relay Outputs: Controls the gas valve, ignitor, inducer motor, and circulating blower through dedicated relay circuits.
The 50A50-571 delivers the reliability and precision required for ignition control, safety supervision, and furnace operation in residential gas heating systems.
Description
The White-Rodgers 50A50-571 is an integrated furnace control board designed to manage ignition, flame sensing, blower operation, inducer control, and safety monitoring in compatible gas-fired furnaces. Manufactured by White-Rodgers, an Emerson brand, the 50A50-571 provides microprocessor-based control for reliable furnace startup, efficient heating operation, and continuous system diagnostics. It is commonly used as an OEM replacement in compatible Trane and American Standard residential furnace systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | White-Rodgers |
| Category | HVAC Control |
| Part Number | 50A50-571 |
| Subcategory | Furnace Control Board |
| Manufacturer | White-Rodgers (Emerson) |
| Product Type | Integrated Furnace Control Board |
| Ignition Type | Single-Stage Hot Surface Ignition |
| Input Voltage | 25 VAC, 50/60 Hz |
| Maximum Input Current | 0.35 A + MV @ 25 VAC |
| Gas Valve Relay Rating | 1.5 A @ 25 VAC |
| Ignitor Relay Rating | 6.0 A @ 120 VAC (Resistive) |
| Inducer Relay Rating | 1.5 FLA / 3.0 LRA @ 120 VAC |
| Circulator Blower Rating | 14.5 FLA / 25.0 LRA @ 120 VAC |
| Trial for Ignition | 4 Seconds |
| Retries | 2 Retries / 3 Ignition Attempts |
| Operating Temperature | -40°F to 175°F (-40°C to 80°C) |
| Compatible Equipment | Trane and American Standard Gas Furnaces |
| Cross Reference | D330927P01, CNT2181 |
| Weight | 1.0 lb (0.45 kg) |
Information About 50A50-571
The 50A50-571 is a single-stage hot surface ignition integrated furnace control developed by White-Rodgers for use in gas-fired forced-air heating equipment. The control board coordinates the operation of the ignitor, gas valve, draft inducer, circulating blower, pressure switch, and flame sensor while continuously monitoring furnace safety circuits through an onboard microprocessor. Operating from a 25 VAC control circuit, it supports multiple approved fuel types, incorporates LED diagnostic indicators, and provides configurable blower delay settings for optimized heating performance. The board is used in numerous OEM Trane and American Standard furnace models and is identified by replacement numbers including D330927P01 and CNT2181.
Key Features:
- Microprocessor-Based Control: Continuously manages ignition, blower, inducer, and safety functions.
- Hot Surface Ignition Control: Designed for single-stage gas furnace ignition systems.
- LED Diagnostics: Built-in flash codes simplify troubleshooting and maintenance.
- Integrated Safety Monitoring: Continuously supervises flame sensing, pressure switch, and thermal protection circuits.
- Configurable Blower Delays: Supports selectable heating and cooling blower off-delay settings.
- Multi-Gas Compatibility: Approved for natural gas, manufactured gas, mixed gas, liquefied petroleum gas, and LP gas.
- OEM Replacement Design: Compatible with Trane and American Standard furnace applications using the 50A50-571 platform.
- Reliable Relay Outputs: Controls the gas valve, ignitor, inducer motor, and circulating blower through dedicated relay circuits.
The 50A50-571 delivers the reliability and precision required for ignition control, safety supervision, and furnace operation in residential gas heating systems.