Products Description
| Product Name | Trane BRD04876 Control Board |
| Model | BRD04876 |
| Applicable Industries | Construction and Commercial |
| Application | Refrigeration compressor |
| Packaging | Cardboard Box |
| MOQ | 1 Piece |
Trane BRD04876 Control Board: Core Functions
1. Dual-Channel AC Load Driving
Receives DC 24V control signals from the main controller and, utilizing Triac (bidirectional thyristor) solid-state switching, independently drives two AC 120/240V loads—such as condenser fans, electric heaters, refrigerant solenoid valves, and water pump contactor coils—thereby achieving zero-noise operation, extended service life, and high-speed switching control.
2. Photoelectric Isolation and Interference Suppression
Provides photoelectric isolation (2500 Vrms) between the control side and the load side, effectively isolating high-voltage interference; this protects the main controller’s I/O ports and prevents damage to the main control board caused by surges or voltage spikes on the load side.
3. Plug-and-Play Rapid Replacement
Both input and output connections utilize pluggable terminal blocks; this eliminates the need for rewiring during field replacements—allowing for direct connector plugging and unplugging—thereby minimizing downtime and reducing the risk of wiring errors.
4. Load Status Feedback
Select versions support the transmission of load ON/OFF status back to the main controller, enabling real-time monitoring of output states via the Tracer TU tool; this facilitates efficient fault diagnosis and enables advanced interlock control capabilities.
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Technical parameter
Company Profile
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| Q1:For refrigeration industry, which brands are your products covering? | A1:We produce filter element replacements for brands like,Bitzer, Carrier, York, McQuay, Trane, etc… |
| Q2:Does the price include freight? | A2:The quotation is usually the factory price. We can recommend the most economical logistics plan and calculate the freight according to your destination and quantity. |
| Q3:How to ensure product quality? | A3:We have a strict quality control process, and we will carry out multiple inspections before the products leave the factory to ensure that they meet the standards. |
| Q4:Why choose us? | A4:Product reliability: We are a professional manufacturer . can offer high-quality products at the most competitive prices. Technical support: We provide technical assistance. Industry experience: We have over 10 years of experience in the refrigeration equipment service field. After-sales service: We offer professional after-sales service. Team collaboration: We have a professional team that can provide you with prompt services and delivery schedules. |
Common Product Fault Symptoms
1. No Output Voltage (Load Inoperative): The fan or heater fails to start, and no AC 120/240V is present at the terminals. This is typically caused by a Triac breakdown, damage to the trigger circuit, a loss of control signals, or a blown fuse.
2. Output Latching (Load Permanently On): The load continues to operate even after power is removed and cannot be switched off. This is typically caused by an overcurrent breakdown and short circuit within the Triac, or a failure of surge suppression components.
3. Power/Indicator Light Off: The circuit board receives no power, or the DC 24V indicator light fails to illuminate. This is typically caused by loose power terminals, a damaged power management IC, or a breakdown of the reverse-polarity protection diode.
4. False Triggering / Interference: The load starts and stops randomly, or the main controller reports an “Output Anomaly.” This is typically caused by voltage surges on the load side, inadequate wiring shielding, or aging filter capacitors on the circuit board.
