1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your Midea Wire Controller. This device is designed for commercial air conditioning applications, offering precise "Comfort Control" over your HVAC system. Please read this manual thoroughly before attempting to install or operate the controller.
2. Setup and Installation
The Midea Wire Controller is intended for wall-mounted installation. Due to the nature of HVAC system wiring, professional installation by a qualified technician is highly recommended to ensure correct and safe operation.
2.1 Unpacking
Carefully remove the controller from its packaging. Inspect the unit for any signs of damage during transit. If any damage is found, contact your supplier immediately.
2.2 Mounting
The controller is designed to be mounted on a wall. Ensure the chosen location is free from direct sunlight, heat sources, or drafts, which could affect temperature readings. The back panel of the controller facilitates secure mounting and connection.
2.3 Wiring
Connect the controller to the Midea air conditioning unit according to the specific wiring diagram provided with your HVAC system. The back of the controller features various ports for communication and power. Incorrect wiring can lead to malfunction or damage to the unit and the air conditioning system. Always ensure power is disconnected before performing any wiring.
3. Operating Instructions
The Midea Wire Controller provides intuitive control over your air conditioning system through its front panel interface.
3.1 Button Functions
- ON/OFF: Press to power the air conditioning unit on or off.
- MENU: Access the main menu to configure settings and modes.
- OK: Confirm selections or enter sub-menus.
- BACK: Return to the previous screen or exit a menu without saving changes.
- Arrow Buttons (Up, Down, Left, Right): Navigate through menu options, adjust temperature settings, or change other parameters.
- UNLOCK (LONG PRESS): Press and hold this button to unlock the controller's keypad, typically used to prevent unauthorized changes.
3.2 Basic Operation
- Power On/Off: Press the "ON/OFF" button to toggle the unit's power state.
- Adjusting Temperature: Use the Up/Down arrow buttons to set your desired temperature when the unit is operating.
- Accessing Menus: Press "MENU" to enter the main settings. Use the arrow buttons to navigate and "OK" to select.
- Locking/Unlocking: If the keypad is locked, perform a "LONG PRESS" on the "UNLOCK" button to enable control.
Refer to your specific Midea air conditioning unit's manual for detailed instructions on available modes and advanced settings accessible through this controller.
4. Maintenance
To ensure optimal performance and longevity of your Midea Wire Controller, follow these simple maintenance guidelines:
- Cleaning: Regularly wipe the surface of the controller with a soft, dry cloth. Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the casing or screen.
- Avoid Moisture: Keep the controller dry. Do not expose it to water or excessive humidity.
- Environmental Conditions: Ensure the operating environment is within the specified temperature and humidity ranges to prevent malfunction.
No user-serviceable parts are inside the controller. For any internal issues, contact a qualified service technician.
5. Troubleshooting
If you encounter issues with your Midea Wire Controller, try the following basic troubleshooting steps:
- No Display/No Power:
- Check the power supply to the air conditioning unit.
- Verify all wiring connections are secure and correct (professional assistance recommended).
- Unresponsive Buttons:
- Ensure the controller is not in a locked state. Perform a "LONG PRESS" on the "UNLOCK" button.
- Gently clean the button area to remove any debris.
- Incorrect Temperature Readings:
- Ensure the controller is not exposed to direct heat sources, cold drafts, or direct sunlight.
- System Not Responding to Commands:
- Check the communication wiring between the controller and the indoor unit.
- Power cycle the air conditioning unit (turn off, wait a few minutes, then turn on).
If the problem persists after attempting these steps, contact Midea customer support or a certified HVAC technician for further assistance.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | KJRH-120H/BMK-E.D.1.1-1, KJRH-120H/BMKO-E, KJRH-120H2/BMKO |
| Type | Wire Controller, Air Conditioner Part |
| Application | Commercial |
| Origin | Mainland China |
| Package Weight | 0.6 kg |
| Package Dimensions (L x W x H) | 20 cm x 20 cm x 6 cm |
7. Warranty and Support
Midea is committed to providing high-quality products and customer satisfaction. For any inquiries or support needs regarding your wire controller, please refer to the following information:
7.1 Returns Policy
- Free Returns: You may be eligible for free returns within 90 days of purchase. Please check the specific terms and conditions with your retailer.
7.2 Delivery Guarantee
Your purchase is covered by a delivery guarantee which includes:
- A $1.00 coupon code if delivery is delayed.
- A full refund if the package is lost.
- A full refund if items are damaged upon arrival.
- A full refund if no delivery is made within 30 days.
7.3 Customer Support
For technical assistance, warranty claims, or further information, please contact your authorized Midea dealer or the point of purchase. Ensure you have your product model number and purchase details available when contacting support.
