1. Introduction
This manual provides essential instructions for the safe and efficient installation, operation, and maintenance of the YMZYEKB AP-1200 circulating water pump. This pump is specifically designed as a spare part for HICON HZB-50, HZB-60, and HZB-80 commercial ice makers. Please read this manual thoroughly before installation and use to ensure proper function and longevity of the product.
2. Safety Information
Always observe the following safety precautions to prevent injury or damage to the equipment:
- Ensure the power supply is disconnected before installation, maintenance, or repair.
- Verify that the voltage and frequency of the power supply match the pump's specifications (220V-240V, 50Hz).
- Do not operate the pump dry. Ensure it is fully submerged in water during operation.
- Keep electrical connections dry and protected from water exposure.
- Only qualified personnel should perform installation and repair procedures.
- Inspect the pump and power cord regularly for any signs of damage. Replace immediately if damage is found.
3. Product Overview
The YMZYEKB AP-1200 is a circulating water pump designed for commercial ice makers. It is responsible for circulating water within the ice-making system, ensuring efficient ice production. Its compact design and specific electrical parameters make it suitable for the listed HICON models.

Figure 3.1: Front view of the YMZYEKB AP-1200 circulating water pump, showing the main body, water outlet, and electrical connector.

Figure 3.2: Side view of the AP-1200 pump, highlighting the water inlet and the internal impeller mechanism.
4. Specifications
| Parameter | Value |
|---|---|
| Motor Model | AP-1200 |
| Voltage | 220V-240V |
| Frequency | 50Hz |
| Power | 8.5W |
| Lift (Max) | 0.75m |
| Flow (Max) | 600 L/H |
| Application | HICON HZB-50, HZB-60, HZB-80 Ice Makers |
5. Installation and Setup
Follow these steps carefully to install the AP-1200 water pump into your HICON ice maker:
- Power Disconnection: Before beginning any work, ensure the ice maker is completely unplugged from the power outlet.
- Access the Pump Compartment: Refer to your HICON ice maker's specific manual for instructions on how to safely access the internal pump compartment. This usually involves removing back or side panels.
- Remove Old Pump: Disconnect the existing pump's electrical connector and water hoses. Carefully remove the old pump from its mounting bracket. Note the orientation and connections for the new pump.
- Install New Pump: Place the new YMZYEKB AP-1200 pump into the mounting bracket. Ensure it is securely seated.
- Connect Hoses: Reconnect the water inlet and outlet hoses to the new pump. Ensure all connections are tight to prevent leaks.
- Connect Electrical: Connect the pump's electrical connector to the corresponding port in the ice maker. Double-check that the connection is firm.
- Secure Panels: Reattach any panels or covers that were removed to access the pump compartment.
- Initial Test: Once installation is complete, reconnect the ice maker to power and perform a test cycle to ensure the pump is circulating water correctly and there are no leaks.

Figure 5.1: Close-up of the AP-1200 pump's electrical connector, which must be securely attached during installation.
6. Operation
The YMZYEKB AP-1200 water pump operates automatically as part of the HICON ice maker's normal cycle. Once installed, its function is integrated into the ice maker's control system. There are no direct user controls for the pump itself.
- Ensure the ice maker's water reservoir is filled to the appropriate level before starting operation.
- The pump will activate to circulate water over the evaporator plate when the ice maker begins an ice-making cycle.
- Monitor the ice maker for proper water circulation and ice production after pump replacement.
7. Maintenance
Regular maintenance ensures the longevity and efficient operation of your AP-1200 water pump and ice maker:
- Cleaning: Periodically clean the pump and its intake filter (if applicable) to prevent blockages from mineral deposits or debris. Disconnect power before cleaning.
- Inspection: Visually inspect the pump and hoses for any signs of wear, cracks, or leaks during routine ice maker cleaning.
- Water Quality: Using filtered water can significantly reduce mineral buildup and extend the life of the pump.
8. Troubleshooting
If you encounter issues after installing the AP-1200 pump, consider the following:
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump not running | No power; Loose electrical connection; Pump motor failure | Check ice maker power supply; Secure electrical connector; Replace pump if motor is faulty. |
| Weak water flow | Clogged intake/impeller; Air in system; Low water level | Clean pump and impeller; Bleed air from system; Ensure adequate water level in reservoir. |
| Water leakage | Loose hose connections; Damaged hoses or pump housing | Tighten hose clamps; Inspect and replace damaged hoses or pump. |
If problems persist after attempting these solutions, consult a qualified technician or refer to your HICON ice maker's main service manual.
9. Warranty and Support
This YMZYEKB AP-1200 circulating water pump is covered by the manufacturer's standard warranty. Please retain your proof of purchase for warranty claims. For specific warranty terms and conditions, or for technical support, please contact the seller or the manufacturer directly. Information regarding the original HICON ice maker's warranty and support should be referenced in its dedicated manual.