Hitachi Wired Remote Controller

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your Hitachi Wired Remote Controller, models HCWA21NEHH and HCWA22NEHH. These controllers are designed for use with Hitachi Primairy R32 Central Air Conditioning systems, offering precise control over your indoor climate. Please read this manual thoroughly before installation and operation to ensure correct usage and optimal performance.

2. Setup and Installation

2.1 Checking Accessories

Before beginning installation, verify that all necessary accessories are included with your unit:

• Manual (1 pc)
• Quality certification (1 pc)
• Screw (2 pcs)
• Controlling cable (2 pcs)

2.2 How to Install

1. **Selecting the Installation Location:** Choose a suitable location for the wired controller. Ensure it is easily accessible, away from direct sunlight, heat sources, and areas with high humidity.
2. **Removing the Upper Cover of the Wired Controller:**

   Carefully insert a slotted screwdriver into the designated slot to pry open and remove the upper cover of the wired controller. Exercise caution to avoid scratching the control board during this process.

   

3. **Determining the Direction of the Controller Wiring Outlet:**

   Identify whether to use the back outlet or the bottom outlet for the controlling cable based on your installation requirements. If using the bottom outlet, you may need to cut off thin areas with nippers or a similar tool and remove any burrs with a file.
4. **Connecting the Controlling Cable:** Connect the provided controlling cable(s) to the appropriate terminals on the back of the controller and to your Hitachi Central Air Conditioning unit. Ensure all connections are secure and follow any specific wiring diagrams provided with your main AC unit or in the full manual.
5. **Mounting the Controller:** Secure the controller's back plate to the wall using the provided screws. Once mounted, reattach the upper cover.

3. Operating Instructions

The wired remote controller provides intuitive control over your air conditioning system. Familiarize yourself with the buttons and display indicators:

3.1 Button Functions

• Power Button (⏻): Turns the air conditioning unit ON or OFF.
• MODE: Cycles through operating modes such as Cool, Heat, Fan, Dry, and Auto.
• FAN: Adjusts the fan speed (e.g., Low, Medium, High, Auto).
• SWING: Controls the louver swing function for air distribution.
• TIMER: Sets the ON/OFF timer for scheduled operation.
• FUNCTION: Accesses advanced settings or special features.
• CANCEL: Exits a menu or cancels a setting.
• CONFIRM: Confirms a selection or setting.
• Up/Down Arrows (⌃ / ⌄): Adjusts temperature settings, navigates menu options, or changes values.

3.2 Basic Operation Steps

1. **Power On/Off:** Press the Power button (⏻) to turn the unit on or off.
2. **Select Mode:** Press the MODE button repeatedly until the desired operating mode (e.g., Cool, Heat) is displayed.
3. **Set Temperature:** Use the Up/Down arrows (⌃ / ⌄) to adjust the desired room temperature.
4. **Adjust Fan Speed:** Press the FAN button to cycle through available fan speeds.
5. **Set Timer (Optional):** Press the TIMER button and use the Up/Down arrows to set the desired ON/OFF time. Confirm with the CONFIRM button.

4. Maintenance

To ensure the longevity and proper functioning of your wired remote 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 excessive moisture, as these can damage the display or internal components.
• **Avoid Liquid Contact:** Prevent any liquids from entering the controller, as this can cause short circuits or damage.
• **Connection Check:** Periodically inspect the controlling cable connection points to ensure they are secure and free from damage.
• **Environmental Conditions:** Ensure the controller is not exposed to extreme temperatures, direct sunlight for prolonged periods, or high humidity, which can affect its performance and lifespan.

5. Troubleshooting

If you encounter issues with your wired remote controller, try the following basic troubleshooting steps:

• **No Display/No Power:**
  • Check the power supply to the air conditioning unit.
  • Ensure the controlling cable is securely connected at both the controller and the AC unit ends.
  • Verify that the AC unit itself is powered on and functioning.
• **Controller Not Responding:**
  • Ensure the cable connections are firm.
  • If the display is on but buttons are unresponsive, try cycling the power to the AC unit (turn off, wait a few minutes, then turn back on).
• **Incorrect Temperature Readings:**
  • Ensure the controller is not installed near a heat source or in direct sunlight, which can affect its internal temperature sensor.
• **Error Codes on Display:**
  • Refer to the main Hitachi Central Air Conditioning unit's operation manual for specific error code interpretations and solutions.

If the problem persists after attempting these steps, contact a qualified service technician or your Hitachi service provider for assistance.

6. Specifications

7. User Tips

• **Connection Cable:** Ensure you have the correct and sufficient length of connection cable for your installation. If you need a replacement or additional cable, contact your supplier.
• **Installation Location:** A well-chosen installation spot, away from drafts or direct heat, will help the controller's temperature sensor provide more accurate readings.

8. Warranty & Support

For warranty information, technical support, or service inquiries, please refer to the documentation provided with your Hitachi Central Air Conditioning system or contact your authorized Hitachi dealer or service center. Keep your purchase receipt and product model information handy when contacting support.