1. Product Overview
The CCHW005 is a sophisticated WiFi-enabled inverter heat pump controller designed for water heater heating systems. It features a main control board, an inverter driver board, a TFT touch screen display, and various sensors to manage heating and cooling modes efficiently. This system is compatible with Tuya smart home platforms for remote control and monitoring.
2. Components List
The package includes the following main components:
- Heat pump control board (Main PCBA)
- TFT Touch Screen Display
- Inverter driver board
- NTC Sensors & Wires (5KΩ/25°C, B value 3470K; 50K/25°C, B value 3490K)
3. Setup and Installation
3.1 Physical Dimensions
Ensure adequate space for mounting the display and main control board. The dimensions are as follows:
- TFT Display Unit: 142mm (W) x 95mm (H) x 22mm (D)
- Display Mounting Bracket: 132mm (W) x 85mm (H)
- Main Control Board Mounting Size: 210mm x 134mm x 34mm
3.2 System Diagram
The following diagram illustrates the overall system architecture and component interconnections:
Key Connections:
- Power Input: AC-L, AC-N from power source to Filter board.
- Filter Board Output: L-OUT, N-OUT to Inverter driver board.
- Inverter Driver Board: Connects to the Compressor (M) and the Main control board (CN-L, CN-N).
- Main Control Board: Connects to the Inverter driver board (CN-L, CN-N) and various peripherals.
3.3 Wiring Diagram
Refer to the detailed wiring diagram below for connecting all components to the main control board. Proper wiring is crucial for safe and correct operation.
Wiring Key:
- Power Input: EGND, N, Live wire, Neutral wire, Earth wire, DC fan motor.
- Outputs/Inputs (Top Right): EEV, EVI, DIP switch, COM, BTW requirement switch, Compressor over-heat protection switch, Water flow switch, Low pressure switch, High pressure switch, DHW tank temperature, BTW tank temperature, EVI outlet temperature / Solar temperature.
- Inputs/Outputs (Bottom Right): Inverter driver board, Display panel, Suction temperature, Coil temperature, Ambient temperature, Inlet water temperature, Outlet water temperature, Exhausted gas temperature.
WARNING: All wiring should be performed by a qualified electrician. Ensure power is disconnected before making any connections.
4. Operating Instructions
4.1 TFT Touch Screen Display
The TFT touch screen display provides an intuitive interface for controlling the heat pump. It shows current status, temperature settings, and allows mode selection.
Available Modes:
- Heating Mode: Maintains a set heating temperature.
- Cooling Mode: Maintains a set cooling temperature.
- Hot Water Mode (DHW): Dedicated mode for domestic hot water production.
- Dual Mode (H-DHW): Combines heating and hot water functions.
Basic Controls:
- ON/OFF: Power the unit on or off.
- MODE: Cycle through available operating modes.
- SETTING: Access advanced settings and parameters.
- TIMER: Program scheduled operation times.
4.2 Tuya App Integration
The controller supports WiFi connectivity and can be integrated with the Tuya Smart app for remote control and monitoring. Follow the instructions provided with the Tuya app to add your device and configure its settings.
5. Maintenance
Regular maintenance ensures optimal performance and longevity of your heat pump controller.
- Cleaning: Periodically wipe the TFT display with a soft, dry cloth. Avoid abrasive cleaners.
- Inspections: Annually inspect all wiring connections for tightness and signs of wear or corrosion.
- Software Updates: Check the Tuya app for any available firmware updates for the controller to ensure you have the latest features and bug fixes.
- Environmental Conditions: Ensure the main control board is installed in a dry, well-ventilated area, protected from extreme temperatures and humidity.
6. Troubleshooting
If you encounter issues, refer to the following basic troubleshooting steps:
- No Power to Display: Check power supply connections and ensure the main control board is receiving power (220V or 380V AC).
- Display Not Responding: Try restarting the unit by cycling the power. If the issue persists, check the connection cable between the display and the main board.
- Incorrect Temperature Readings: Verify that all NTC sensors are correctly connected and positioned. Ensure sensor wires are not damaged.
- WiFi Connectivity Issues: Ensure your home WiFi network is active and the controller is within range. Re-attempt pairing with the Tuya app if necessary.
- Heat Pump Not Operating: Check the selected operating mode on the display. Verify all safety switches (e.g., water flow, pressure switches) are in their normal operating state. Consult the wiring diagram to ensure all components are correctly connected.
For complex issues, contact qualified service personnel.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | CCHW005 |
| Product Name | Inverter Heat Pump Controller |
| Type | PCB Board, Heat pump control PCB Board |
| Base Material | Double-Sided Boards FR-4 |
| Material | FR-4 |
| Copper Thickness | 1OZ |
| Board Thickness | 1.6mm |
| Min. Hole Size | Component hole: 0.6-2.0mm, Mounting hole: 4mm |
| Min. Line Width | More than 0.3mm |
| Min. Line Spacing | More than 0.3mm |
| Functional Application | PCB Design/Fabrication |
| Surface Finishing | Lead free |
| Board Size | Class A2 insulation board |
| Power Supply | 220 or 380 ±10%(VAC), 50/60Hz |
| Mounting Size (Main Board) | 210*134*34mm |
| Sensor Type | NTC(5KΩ/25°C,B value 3470K; 50K/25°C, B value 3490K) |
| Relay Output Capacity | 10A/240VAC, 15A/250VAC |
| Certificates | ISO9001, ROHS |
| Testing | AOI Test |
8. Warranty and Support
This product is covered by a standard manufacturer's warranty. For warranty claims or technical support, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.
For further assistance, refer to the official Tuya Smart app documentation or support resources for integration and smart home features.
9. User Tips
No specific user tips were available from reviews or Q&A for this product. However, general tips for heat pump controllers include:
- Optimize Settings: Experiment with different temperature settings and timer schedules to find the most energy-efficient operation for your specific needs.
- Monitor Performance: Regularly check the system's performance via the display or Tuya app to ensure it's operating as expected.
- Professional Installation: Due to the electrical nature and complexity of heat pump systems, professional installation is highly recommended to ensure safety and proper function.
