YORK Furnace Control Circuit Board User Manual

1. Introducció

This manual provides essential information for the safe and effective installation, operation, and maintenance of your new YORK Furnace Control Circuit Board, Model CECOMINOD071178. This board serves as a direct replacement for the original 031-01234-000 board, designed to manage the various functions of your furnace system. Please read this manual thoroughly before proceeding with any installation or service.

2. Informació de seguretat

La instal·lació, l'ajustament, l'alteració, el servei o el manteniment inadequats poden causar danys a la propietat, lesions personals o la pèrdua de la vida. La instal·lació i el servei han de ser realitzats per un instal·lador qualificat, una agència de servei o el proveïdor de gas.

• Desconnecteu l'alimentació: Always ensure that all electrical power to the furnace is disconnected at the main service panel before installing or servicing the control board. Failure to do so can result in electrical shock, fire, or death.
• Descàrrega estàtica: Electronic components are sensitive to static electricity. Before handling the board, discharge any static electricity from your body by touching a grounded metal object, such as a bare metal pipe or the furnace chassis. Consider using an anti-static wrist strap.
• Personal qualificat: Installation and troubleshooting should only be performed by individuals with proper electrical and HVAC system knowledge.
• Precisió del cablejat: Double-check all wiring connections against the furnace's wiring diagram and the instructions provided with this board. Incorrect wiring can damage the board or the furnace.

3. Producte acabatview

The YORK Furnace Control Circuit Board (Model CECOMINOD071178) is a critical component responsible for controlling the sequence of operations in your furnace. It manages functions such as ignition, fan operation, and safety shutdowns. This board is an upgraded replacement designed to be compatible with systems originally using the 031-01234-000 board.

While this board is a functional replacement, its physical layout and mounting hole configuration may differ from the original 031-01234-000 board. It is manufactured by White-Rodgers and may carry part number 50A56-956.

4. Configuració i instal·lació

Segueix aquests passos amb cura per a una instal·lació correcta:

1. Desconnexió d'alimentació: Turn off all electrical power to the furnace at the main circuit breaker or fuse box. Verify power is off using a voltage metre.
2. Documentar el cablejat existent: Before disconnecting any wires from the old control board, take clear photographs of all connections. Label each wire and its corresponding terminal on the old board. This is crucial for correct re-connection.
3. Treure la placa antiga: Carefully disconnect all wires and remove the old control board from the furnace control box. Note the mounting method.
4. Munta una nova placa: The new board may have different mounting hole locations. You may need to drill new holes in the control box to secure the new board. The board typically comes with nylon standoffs and snap-tabs. Position the new board, mark the new hole locations, and drill appropriate pilot holes (e.g., 3/16" for nylon standoffs). Ensure the board is securely mounted.
5. Connecteu el cablejat: Refer to your documented wiring (photos and labels) and the wiring diagram provided with the new control board. Connect each wire to its corresponding terminal on the new board.
6. Transformer Polarity (Crucial): Some replacement boards, including this one, may have a reverse polarity design for the 24V transformer leads compared to the original York board. If your furnace does not operate after installation and displays a

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