1. Киришүү
This instruction manual provides essential information for the proper installation, configuration, and maintenance of the Lennox 40K82 BDC3-1 Circuit Board. This component is designed as a replacement part for specific Lennox HVAC systems. Please read this manual thoroughly before attempting any installation or service.
2. Коопсуздук маалыматы
ЭСКЕРТҮҮ: Туура эмес орнотуу, тууралоо, өзгөртүү, тейлөө же техникалык тейлөө мүлккө зыян келтириши, жеке жаракат же адам өмүрүнүн кыйылышына алып келиши мүмкүн. Орнотуу жана тейлөө квалификациялуу орнотуучу, тейлөө агенттиги же газ менен камсыздоочу тарабынан аткарылышы керек.
- Always disconnect the main power supply to the HVAC unit before installing, servicing, or removing the circuit board.
- Бардык зымдарды туташтыруу жергиликтүү жана улуттук электр эрежелерине ылайык келишин камсыз кылыңыз.
- Орнотуу жана тейлөө учурунда тиешелүү жеке коргонуу каражаттарын (ЖКК) кийиңиз.
- Do not touch electronic components with bare hands to avoid electrostatic discharge (ESD) damage.
- Туура томду текшериңизtagЭлектр кубатын туташтыруудан мурун e жана учурдагы баалуулуктарды текшериңиз.
3. Продукт бүтүп калдыview
The Lennox 40K82 BDC3-1 is a replacement circuit board designed for specific Lennox furnace applications. It manages various functions within the HVAC system, including fan operation, heating, and cooling cycles. This board replaces models LB-89812 and 40K8201.

1-сүрөт: Lennox 40K82 BDC3-1 Circuit Board. This image displays the green circuit board with various electronic components, connectors, and labeled jumper settings for configuration.
Key components visible on the board include a Zettler relay (AZ8-1C-24DSE), various resistors, capacitors, and multiple jumper pin sets labeled for configuration, such as "ADJUST", "HEAT", "COOL", "DELAY", "CFM", and "RUN". There is also a multi-pin connector for system integration.
4. Орнотуу жана орнотуу
4.1. Орнотууга чейинки кадамдар
- Кубатты өчүрүү: Негизги тейлөө панелиндеги HVAC блогунун бардык электр кубатын өчүрүңүз. Күйгүзгүчтү колдонуп, кубат өчүк экенин текшериңиз.tage сыноочу.
- Эски тактага кирүү: Open the control panel of the HVAC unit to access the existing circuit board.
- Документти өткөрүү: Carefully label all wires connected to the old circuit board before disconnecting them. Take photographs for reference if necessary.
- Эски тактаны алып салуу: Disconnect all wires and mounting screws, then carefully remove the old circuit board.
4.2. Installing the New Board
- Mount New Board: Secure the Lennox 40K82 BDC3-1 circuit board in the same location as the old board using the appropriate mounting hardware.
- Зымдарды туташтыруу: Reconnect all wires to the new board according to your documented labels and the HVAC system's wiring diagram. Ensure all connections are secure and correct.
- Configure Jumpers: Set the jumpers for "ADJUST", "HEAT", "COOL", "DELAY", "CFM", and "RUN" according to the specific requirements of your HVAC system and the manufacturer's specifications. Refer to your HVAC unit's service manual for correct jumper settings.
- Панелди жабуу: Once all connections are verified and jumpers are set, close the control panel.
5. Иштөө нускамалары
After installation, the circuit board operates automatically as part of the HVAC system. The primary "operation" involves ensuring correct configuration during setup.
- Күчтү калыбына келтирүү: Turn on the main electrical power supply to the HVAC unit.
- Системалык тест: Initiate a test cycle for both heating and cooling modes from your thermostat to verify proper operation of the furnace and air conditioning.
- Монитор аткаруу: Observe the system for a short period to ensure stable and correct functionality.
6. Техникалык тейлөө
The Lennox 40K82 BDC3-1 circuit board requires minimal maintenance. Regular inspection during routine HVAC system service is recommended.
- Визуалдык текшерүү: Periodically inspect the board for any signs of damage, discoloration, or loose connections.
- Тазалоо: If dust accumulation is observed, gently clean the board using a soft brush or compressed air. Ensure power is disconnected before cleaning.
- Туташуу текшерүү: Бардык зым туташуулары бекем экенин текшериңиз.
7. Кыйынчылыктарды
If the HVAC system is not functioning correctly after installing the new circuit board, consider the following troubleshooting steps:
- Кубат жок:
- Check the main power supply to the HVAC unit.
- Бардык аз көлөмдөгү маалыматтарды текшериңизtagе жана жогорку томtage connections to the board are secure.
- Inspect fuses on the board or within the HVAC unit.
- Incorrect Operation (e.g., fan not running, no heat/cool):
- Re-check all wiring connections against the system's wiring diagram.
- Verify that all configuration jumpers ("ADJUST", "HEAT", "COOL", "DELAY", "CFM", "RUN") are set correctly according to your HVAC unit's specifications.
- Consult the specific troubleshooting guide for your Lennox HVAC unit model, as the circuit board interacts with other system components.
- Ката коддору: If your HVAC system displays error codes, refer to your HVAC unit's service manual for their interpretation and recommended actions.
If issues persist, it is recommended to contact a qualified HVAC technician for diagnosis and repair.
8. Техникалык шарттар
| Модель номери | 40K82 BDC3-1 |
| Бөлүктөрдүн номерлерин алмаштырат | LB-89812, 40K8201 |
| Өндүрүүчү | Леннокс |
| Продукциянын өлчөмдөрү | 6 x 6 x 4 дюйм |
| Элемент Салмагы | 2 фунт |
| Киргизүү көлөмүtage (ACC) | 24V/1A (as indicated on board) |
| Relay Rating (Zettler AZ8-1C-24DSE) | 10A 120VAC, 7A 240VAC |
9. Кепилдик жана колдоо
For specific warranty information regarding the Lennox 40K82 BDC3-1 Circuit Board, please refer to the original purchase documentation or contact your authorized Lennox dealer or the point of purchase. Warranty terms may vary.
For technical support or further assistance, it is recommended to consult a qualified HVAC professional or contact Lennox customer service directly through their official webсайт же байланыш каналдары.





