ICM Controls ICM289 Lennox OEM Furnace Control Board Replacement User Manual

Indledning

This manual provides instructions for the installation, operation, and maintenance of the ICM Controls ICM289 Furnace Control Board. The ICM289 is designed as a direct replacement for Lennox BCC1, BCC2, and BCC3 series circuit boards, offering form, fit, and functional compatibility. This microprocessor-based control board manages the inducer fan motor, blower fan, and monitors limit switches, ensuring proper furnace operation. It is compatible with all 24 VAC thermostats.

Sikkerhedsoplysninger

ADVARSEL: Before attempting any installation, maintenance, or troubleshooting, ensure that the main power supply to the furnace is disconnected at the circuit breaker or fuse box. Failure to do so can result in electrical shock, personal injury, or death. Installation should only be performed by qualified personnel. Always wear appropriate personal protective equipment.

• Disconnect all power to the furnace before servicing.
• Verify all wiring connections are secure and correct before restoring power.
• Omgå ikke sikkerhedsanordninger.

Opsætning og installation

The ICM289 board is designed for straightforward replacement of existing Lennox BCC1, BCC2, and BCC3 control boards. Follow these steps carefully:

1. Strømafbrydelse: Ensure all electrical power to the furnace is completely disconnected.
2. Dokumentation: Before removing any wires, take clear photographs of the existing control board and its wiring connections. Label each wire precisely as it connects to the old board. This documentation is crucial for correct re-installation.
3. Fjernelse af gammelt bræt: Carefully disconnect all wires from the old control board. Unmount the old board from the furnace chassis.
4. New Board Mounting: Position the ICM289 replacement board. It features plastic clip-spacers designed to align with the mounting holes used by the original BCC3 boards. Secure the new board in place. The rear PCB of the ICM289 has a protective coating to prevent arcing to the metal mounting surface.
5. Ledningsforbindelse: Refer to your photographs and labels. Connect each wire from the furnace to its corresponding terminal on the ICM289 board. While most connections are identical, if an adapter is provided for a specific terminal, ensure it is used correctly. Verify all connections are firm and correctly seated.
6. Strømgendannelse: Once all connections are verified, restore power to the furnace.
7. Indledende test: Initiate a heating cycle to confirm proper operation of the furnace, including the inducer fan, igniter, burners, and blower fan.

Image of the ICM Controls ICM289 furnace control board, showing its various terminals and components. This board is a direct replacement for Lennox BCC1, BCC2, and BCC3 series.

Betjeningsvejledning

The ICM289 furnace control board operates automatically in conjunction with your 24 VAC thermostat. Once installed and power is restored, the board will manage the furnace's heating and cooling cycles based on thermostat demands.

• Opvarmningscyklus: Upon a call for heat from the thermostat, the board initiates the inducer fan, verifies safety switches, activates the igniter, opens the gas valve, and then engages the blower fan once the heat exchanger is sufficiently warm.
• Afkølingscyklus: Upon a call for cool, the board activates the blower fan to circulate air through the cooling coil.
• Ventilatorbetjening: The board controls the blower fan for both heating and cooling, as well as continuous fan operation if selected on the thermostat.

Opretholdelse

Regular maintenance of your furnace system is essential for the longevity and proper functioning of the control board and the entire unit. While the control board itself requires no direct user maintenance, certain system conditions can impact its performance and lifespan.

• Luftstrømsstyring: Ensure proper airflow through your furnace. Restricted airflow can cause the blower fan to work harder, potentially leading to overheating of the control board components. Regularly check and replace air filters.
• Ventilation: Keep all supply and return air vents open and unobstructed. Closed vents can contribute to restricted airflow.
• AC Condenser: If applicable, ensure your outdoor AC condenser coil is clean and free of debris to maintain efficient system operation.
• Professionel inspektion: Schedule annual professional inspections of your furnace system to identify and address potential issues before they lead to component failure.

Fejlfinding

If your furnace is not operating correctly after installing the ICM289 board, consider the following troubleshooting steps:

• Ingen strøm:
  • Check the circuit breaker or fuse for the furnace.
  • Ensure the furnace power switch is in the "ON" position.
  • Bekræft alle lavvolumen-tage thermostat wires are securely connected.
• Furnace Not Heating:
  • Bekræft, at termostaten er indstillet til "VARME", og at temperaturen er over den omgivende rumtemperatur.
  • Check for any error codes on the control board (refer to furnace manufacturer's documentation for code interpretation).
  • Sørg for, at gasforsyningsventilen til ovnen er åben.
• Blower Fan Not Operating Correctly (e.g., not turning on, not shutting off):
  • Re-verify all blower motor wiring connections to the control board.
  • Check for any obstructions in the blower assembly or ductwork.
  • Ensure the thermostat fan setting is correct (AUTO vs. ON).
• Intermitterende drift:
  • Inspect all wiring for loose connections or signs of damage.
  • Ensure limit switches and other safety devices are functioning correctly (consult a professional).

Hvis fejlfindingstrinene ikke løser problemet, anbefales det at kontakte en kvalificeret HVAC-tekniker for yderligere diagnose og reparation.

Specifikationer

Garanti og support

For specific warranty information regarding your ICM Controls ICM289 Furnace Control Board, please refer to the documentation provided with your purchase or contact ICM Controls directly. For technical support or assistance with installation and troubleshooting, it is recommended to consult a qualified HVAC professional or reach out to ICM Controls customer service.

Fabrikant: ICM-kontroller

Note: This manual provides general guidance. Always refer to your specific furnace manufacturer's instructions and local electrical codes.