1. Producte acabatview
The Cloudray S&A CWFL-4000 Industrial Chiller is a high-performance cooling system specifically designed for fiber laser equipment. It ensures stable operation and extends the lifespan of your laser source by maintaining optimal temperature conditions. This manual provides essential information for the safe and efficient installation, operation, and maintenance of your chiller.

Figure 1: Cloudray S&A CWFL-4000 Industrial Chiller
2. Característiques clau
The CWFL-4000 Industrial Chiller offers a range of advanced features for reliable and precise temperature control:
- Utilizes environmental refrigerant for eco-friendly operation.
- Provides precise temperature control with an accuracy of ±1°C.
- Equipped with an intelligent temperature controller featuring two control modes suitable for various applications, along with comprehensive setting and display functions.
- Features a dual temperature system to meet the distinct cooling requirements of both the fiber laser and the laser head.
- Includes ion adsorption filtrating and test functions to comply with fiber laser device operating standards.
- Incorporates multiple alarm functions for enhanced safety and operational monitoring, including compressor time-delay protection, compressor overcurrent protection, water flow alarm, and over high/low temperature alarm.
- Offers optional heater and water filter functionalities.
- Supports Modbus-485 communication protocol, enabling seamless communication between the laser system and multiple water chillers for monitoring working status and modifying parameters.

Figura 2: Característiques del producte
3. Estructura i components del producte
Familiarize yourself with the main components and their locations on the chiller unit:
3.1 Tauler frontal
- Temperature Controller (Low Temp): Controls the temperature for one cooling circuit.
- Temperature Controller (High Temp): Controls the temperature for the other cooling circuit.
- Interruptor d'alimentació: Main switch to turn the chiller ON/OFF.
- Water Pressure Gauge: Displays the current water pressure in the system.
3.2 Panell posterior
- Sortida d'aire: Exhausts hot air from the chiller.
- Water Outlet (L): Low temperature water outlet.
- Water Inlet (L): Low temperature water inlet.
- Water Outlet (H): High temperature water outlet.
- Water Inlet (H): High temperature water inlet.
- Entrada de subministrament d'aigua: Port for filling the water tank.
- Filtre: Filters impurities from the cooling water.
- Indicador de nivell d'aigua: Indicates the current water level in the tank.
- Communication and Alarm Output: Ports for external communication and alarm signals.
- Power Supply Overfall Gap: Access point for power connections.
- Desguàs: Valve for draining water from the tank.
- Air Inlet (Filter Gauze): Air intake with a filter to prevent dust entry.

Figura 3: Components del panell frontal

Figure 4: Rear Panel Components
4. Especificacions tècniques
The following table details the technical specifications for the CWFL-4000 Industrial Chiller models:
| Paràmetre | CWFL-4000BNP | CWFL-4000ENP |
|---|---|---|
| Voltage | AC 1P 220-240V | AC 3P 380V |
| Freqüència | 60 Hz | 50 Hz |
| Actual | 3.6-29.7A | 1.7-13.6A |
| Màx. consum d'energia | 6 kW | 5.62 kW |
| Potència de l'escalfador | 550W + 1400W | |
| Precisió | ±1 °C | |
| Reductor | Capil·lar | |
| Potència de la bomba | 1 kW | 0.75 kW |
| Capacitat del dipòsit | 22L | |
| Entrada i sortida | Rp1/2" + Rp1/2" | |
| Màx. pressió de la bomba | 59M | 50M |
| Flux nominal | 1.5L/min + >30L/min | |
| Pes net (NW) | 123 kg | 135 kg |
| Pes brut (GW) | 150 kg | 154 kg |
| Mida (L*W*H) | 87 * 65 * 117 cm | |
| Package dimension (L*W*H) | 95 * 77 * 135 cm | |
| Certificació | CE, RoHS | |
| Origen | Xina continental | |
Note: The working current can differ under different working conditions. The above information is for reference only. Please refer to the actual delivered product.

Figura 5: Especificacions tècniques
5. Instal·lació i configuració
Follow these steps to properly install and set up your industrial chiller:
- Desembalatge: Carefully remove the chiller from its packaging. Inspect the unit for any signs of shipping damage. Report any damage to the carrier and seller immediately.
- Col·locació: Position the chiller on a stable, level surface. Ensure there is adequate space (at least 30 cm) around all sides, especially the air inlets and outlets, to allow for proper ventilation and heat dissipation.
- Connexió d'alimentació: Verify that the chiller's specified voltage and frequency (AC 1P 220-240V 60Hz or AC 3P 380V 50Hz) match your local power supply. Connect the power cable securely to a grounded outlet.
- Connexions d'aigua: Connect the chiller's water inlet and outlet ports to your fiber laser equipment using appropriate hoses and fittings. The CWFL-4000 features dual water circuits:
- Connect the laser source to Water Inlet (L) and Water Outlet (L).
- Connect the laser head to Water Inlet (H) and Water Outlet (H).
- Ompliment del dipòsit d'aigua: Open the water supply inlet cap and fill the tank with distilled or deionized water. Do not use tap water as it can cause mineral buildup and damage the system. Fill until the water level gauge indicates an appropriate level (typically within the green zone).
- Comprovacions inicials: Before powering on, double-check all electrical and water connections. Ensure the water tank is filled to the correct level and that the main power switch is in the OFF position.
6. Funcionament
Once installed, operate the chiller as follows:
- Encès: Flip the main power switch on the front panel to the ON position. The chiller will initiate its startup sequence.
- Configuració de la temperatura: Use the dedicated temperature controllers (Low Temp and High Temp) to set the desired cooling temperatures for your laser system and laser head. Refer to your specific laser equipment's manual for recommended operating temperature ranges.
- Seguiment: Regularly monitor the water pressure gauge to ensure proper water circulation. Observe the temperature displays on the controllers for stable operation.
- Funcions d'alarma: The chiller is equipped with multiple alarm functions. If an alarm is triggered, the chiller will indicate the issue on its display or via alarm outputs. Refer to the troubleshooting section for corrective actions.
7. Manteniment
Regular maintenance is crucial for the longevity and efficient operation of your chiller:
- Neteja regular: Keep the chiller's exterior clean and free from dust. Regularly clean the air inlet (filter gauze) to ensure proper airflow and cooling efficiency. A clogged filter can significantly reduce cooling performance.
- Qualitat de l'aigua: Check the water quality periodically. Replace the water in the tank every 3-6 months, or more frequently if water quality deteriorates or if the chiller is used in a dusty environment. Always use distilled or deionized water.
- Manteniment del filtre: If your chiller is equipped with an optional water filter, inspect and clean or replace it as recommended by the manufacturer to maintain optimal filtration and prevent blockages.
- Inspecció de fuites: Periodically check all water connections, hoses, and internal components for any signs of leaks. Address any leaks immediately to prevent damage to the chiller or surrounding equipment.
8. Solució De Problemes
The CWFL-4000 chiller features multiple alarm functions to indicate operational issues. Below are common issues and general troubleshooting steps:
- Compressor Time-Delay Protection: This is a normal protective measure to prevent the compressor from rapid cycling. Wait for the delay to clear; the chiller should resume operation automatically.
- Compressor Overcurrent Protection: This indicates an electrical overload. Check the power supply, ensure the chiller is connected to a stable power source, and inspect for any loose wiring. If the issue persists, contact technical support.
- Water Flow Alarm: This alarm indicates insufficient water flow. Check the water level in the tank and refill if necessary. Inspect the water pump for proper operation and check all water lines for kinks, blockages, or leaks. Ensure the external laser system's water circuit is not obstructed.
- Over High / Low Temperature Alarm: This alarm triggers if the water temperature goes outside the set range. Check the ambient temperature of the operating environment. Verify the chiller's temperature settings are appropriate for the load. Ensure the air inlets and outlets are not blocked, and the condenser is clean.
For persistent issues or alarms not listed here, consult the full product manual or contact Cloudray technical support for assistance.
9. Electrical Connection Diagram
The following diagram illustrates the electrical connections for alarm signal output and MODBUS RS-485 communication output:

Figure 6: Electrical Connection Diagram
- H1, H2, H3: These are alarm signal output terminals. They provide signals (e.g., normally open/normally closed contacts) that can be integrated with your laser system or other control devices to indicate an alarm state, allowing for automatic shutdown or warning.
- A, B, PE: These are MODBUS RS-485 communication output terminals. They enable serial communication between the chiller and a master device (e.g., a PLC or computer) using the Modbus-485 protocol. This allows for remote monitoring of the chiller's operating status and modification of its parameters.
10. Garantia i Suport
This Cloudray S&A Industrial Chiller is covered by a manufacturer's warranty. For specific warranty terms, duration, and conditions, please refer to the documentation provided with your purchase or contact Cloudray Official Store directly.
For technical assistance, spare parts, or service inquiries, please reach out to the seller or manufacturer's customer support. Ensure you have your product model number (CWFL-4000) and purchase details available when contacting support.





