Allied Air 40k82 Blower Circuit Control Board 24V

Product Description

The ALLIED AIR 40k82 is a blower circuit control board designed to manage blower motor operation in residential forced-air HVAC systems. Operating on a 24 volt DC input signal, this board receives low-voltage commands from the system thermostat or main control and translates them into blower staging and timing sequences. At 4.3 inches long, 4.4 inches wide, and 2.9 inches tall, the board is sized for direct OEM-style installation in the air handler or furnace blower section. Installation is typically performed by a licensed HVAC technician as part of a controls replacement or system troubleshooting procedure.

This control board is suited for residential forced-air heating and cooling applications where the blower circuit requires a dedicated control interface. It is commonly installed in air handlers and gas furnaces where the blower motor sequencing is managed separately from the main integrated furnace control. Technicians typically encounter this board during no-heat or no-cool calls where the blower fails to energize or run on schedule despite a functioning main board.

Key Features

• 24 volt DC input signal for compatibility with standard low-voltage thermostat circuits
• Dedicated blower circuit control separates blower logic from the main furnace control board
• Compact form factor: 4.3 inches x 4.4 inches x 2.9 inches for easy fitment in tight air handler compartments
• Lightweight at 0.15 pounds, minimizing mounting stress on the enclosure
• OEM-style replacement board for ALLIED AIR equipment

Compatibility

Designed as an OEM-style replacement blower circuit control board for ALLIED AIR forced-air HVAC systems. The raw product data references part number 40K8201 as an associated part number for this board.

Installation Notes

Installation should be performed by a licensed HVAC technician. Before servicing the air handler or furnace, shut off all electrical power at the disconnect and set the thermostat to the off position. Discharge any capacitors in the blower circuit before handling the control board. Verify that all wiring harness connectors are fully seated and that the replacement board is securely mounted before restoring power and testing blower operation.

Technical Specifications

• Input Voltage: 24 volts DC
• Length: 4.3 inches
• Width: 4.4 inches
• Height: 2.9 inches
• Net Weight: 0.15 pounds

Standard Information

• Brand: ALLIED AIR
• Manufacturer Part Number: 40k82