1. Pengenalan
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your CAREL Refrigerator Temperature Controller, models PYHI1Z056V and PZHIC00000K. Please read this manual thoroughly before using the device.
2. Produk Lebihview
The CAREL temperature controller is designed for precise temperature management in refrigeration units. It features a digital display, programmable keys, and connections for NTC probes and serial communication.

Rajah 2.1: Depan view of the CAREL temperature controller, showing the digital display and control buttons.

Rajah 2.2: Belakang view of the controller, illustrating the terminal blocks for electrical connections.

Figure 2.3: The complete package including the controller, NTC probes, and mounting clips.
3. Spesifikasi
| Ciri | Perincian |
|---|---|
| Nombor Model | PYHI1Z056V, PZHIC00000K |
| Julat Suhu | -10 to 50°C (indicated as -10T50) |
| Penilaian Semasa | 8(4)A, 2FLA 12LRA |
| Voltage | 250 Vac, 230V~ |
| bahan | plastik |
| taip | Other (Temperature Controller) |
| Siasatan | NTC PROBES |
| Piawaian | EN60730-1, UL 873 |
| asal usul | Tanah Besar China |
4. Pemasangan dan Persediaan
Proper installation is crucial for the safe and correct operation of the controller. Ensure power is disconnected before beginning installation.
4.1 Pemasangan
The controller is designed for panel mounting. Use the provided clips to secure the unit into a suitable cutout in your control panel. Ensure adequate ventilation around the unit.

Figure 4.1: Controller shown with yellow mounting clips for panel installation.
4.2 Gambarajah Pendawaian
Refer to the detailed wiring diagram below for electrical connections. All wiring should be performed by a qualified technician in accordance with local electrical codes.

Figure 4.2: Wiring diagram and technical specifications label for the controller.
Penerangan Terminal Pendawaian:
- Terminal 1-3: Relay output 8(4)A, 2FLA 12LRA.
- Terminal 4-5: Power supply L and N (230V~).
- Terminal 6-7: NTC Probes connection.
- Terminal 8-9: Digital Input / NTC (DI/NTC).
- Terminal 10-11: Serial Communication (SERIAL CONV) / Programming Key (PROG KEY).
WARNING: Use copper conductors only. Refer to C314A055R1 for specific conductor requirements.
5. Arahan Operasi
Once installed and powered, the controller will display the current temperature. Use the front panel buttons to adjust settings and monitor operation.
5.1 Operasi Asas
- Butang Kuasa: Typically used to turn the unit ON/OFF or enter standby mode.
- Butang SET: Used to access and modify setpoint temperatures and other parameters.
- Anak panah atas/bawah: Used to navigate menus and adjust values.
- Defrost Button (Snowflake icon): Initiates a manual defrost cycle if configured.
5.2 Menetapkan Suhu
- Press the SET button to enter the setpoint adjustment mode.
- Use the Up/Down arrow buttons to adjust the desired temperature.
- Press SET again to confirm the new setpoint and exit the adjustment mode.
5.3 Pengaturcaraan Lanjutan
For advanced settings and parameter configuration, a programming key (PROG KEY) can be connected to terminals 10-11. Refer to the specific programming manual for detailed instructions on parameter configuration.
6. Penyelenggaraan
Penyelenggaraan berkala memastikan prestasi optimum dan jangka hayat pengawal suhu anda.
- Pembersihan: Bersihkan panel hadapan dengan lembut, damp cloth. Do not use abrasive cleaners or solvents. Ensure no liquid enters the unit.
- Pemeriksaan Siasatan: Periodically check the NTC probes for damage or corrosion. Ensure they are securely connected and properly positioned for accurate temperature sensing.
- Pengudaraan: Pastikan bukaan pengudaraan pada unit tidak tersumbat untuk mengelakkan terlalu panas.
WARNING: Disconnect power to the unit before performing any maintenance or cleaning.
7. Penyelesaian masalah
Bahagian ini menyediakan penyelesaian kepada isu biasa yang mungkin anda hadapi.
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Paparan kosong | No power, incorrect wiring, internal fault. | Check power supply (230V~). Verify wiring connections (Terminals 4-5). If problem persists, contact support. |
| Bacaan suhu tidak betul | Faulty NTC probe, incorrect probe placement, wiring issue. | Inspect NTC probes for damage. Ensure probes are correctly connected to terminals 6-7. Verify probe placement in the refrigerated area. |
| Controller not responding to button presses | Unit locked, internal fault. | Check if the unit is in a locked mode (refer to programming manual). Power cycle the unit. If issue persists, contact support. |
8. Petua Pengguna
- Penempatan Probe: For accurate temperature control, ensure NTC probes are placed in a location that truly represents the temperature of the refrigerated space, away from direct airflow or heat sources.
- Pemeriksaan biasa: Periodically verify the displayed temperature against an independent thermometer to ensure calibration accuracy.
9. Waranti dan Sokongan
This CAREL temperature controller is covered by the manufacturer's standard warranty against defects in materials and workmanship. For warranty claims or technical support, please contact your authorized CAREL distributor or the point of purchase. Keep your purchase receipt as proof of purchase.
For further technical documentation or specific programming guides, please visit the official CAREL website or consult your supplier.





