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Daikin-McQuay 4011987 Printed Circuit Board Assembly

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Special Price $315.86 Regular Price $350.60
In stock
SKU
4011987
The Daikin-McQuay 4011987 Printed Circuit Board Assembly serves as the electronic control center for particular Daikin and McQuay HVAC equipment which operates in air handlers and rooftop units. This PCB executes control of multiple functions which include fan operation alongside temperature control and communication with system components. The control unit draws information from sensors to run its control algorithms for maintaining desired operational parameters. Improved system reliability together with optimized performance and precise control of HVAC functions form the chief advantages of this device. The implementation of this device enables the connected equipment to function both efficiently and accurately.
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HVAC Controls & Electrical, Control Boards & Modules
Manufacturer:
https://www.partshnc.com/media/catalog/product/4/0/4011987_1.jpg
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Product Questions (2)
Customer Questions
What maintenance is required for the Daikin‑McQuay 4011987 Printed Circuit Board Assembly?

Inspect the Printed Circuit Board for dust buildup, corrosion, or loose connectors. Keep the surrounding area clean and dry, and power down the unit before servicing. Check that all wiring and terminals remain firmly seated.

What are common issues with the Daikin‑McQuay 4011987 Printed Circuit Board Assembly?

  • Erratic or unresponsive system action.
  • Failure to initiate control operations.
  • Faulty indicator lights or displays.
  • Corrosion causing poor electrical contact.

Installation Steps

Step 1: Power off the unit and disconnect from mains to prevent electrical shock.

Step 2: Open the access panel of the equipment housing the board.

Step 3: Carefully remove the existing circuit board, noting wire connections or taking a photo.

Step 4: Install the new board in the correct orientation.

Step 5: Reconnect all wires securely, matching original connections.

Step 6: Close the panel, restore power, and test operation.