Essential FAQs For Industrial Chillers: Selection, Issues, Maintenance & Cooling Principles

1. Selection
- Determine cooling capacity (kW/RT) based on heat load, ambient temperature, and flow rate.

- Choose between air-cooled (easy install, no cooling tower) and water-cooled (higher efficiency, better for high heat).

- Select proper refrigerant, pump size, and control system (constant temp / variable speed).

2. Troubleshooting

- Not cooling enough: Low refrigerant, dirty condenser, insufficient water flow, faulty compressor.

- High discharge pressure: Clogged filters, poor ventilation, overcharged refrigerant.

- Noisy operation: Loose parts, cavitation in pump, bearing wear, compressor issues.

- Water leakage: Damaged seals, cracked pipes, loose connections.

3. Maintenance

- Clean condenser coils / filters regularly.

- Check refrigerant level and oil quality.

- Inspect pumps, fans, belts, and electrical connections.

- Drain and replace cooling water periodically to prevent scale and corrosion.

- Log temperature, pressure, and running hours.

4. Cooling Basics

- Industrial chillers use vapor-compression refrigeration cycle:
Evaporator → Compressor → Condenser → Expansion Valve

- Remove heat from process fluid (water/glycol) and reject it to air or cooling tower.

- Key parameters: inlet/outlet temp, pressure, flow rate, ambient temp, cooling efficiency.

Fiber Laser Chiller: HL  series, stand-alone chillers for 1kW-120kW fiber lasers, dual temperature
Handheld Laser Welding Chiller: SCH series, rack mount chillers for 1kW-3kW handheld laser welders; SCHYTJ  series, all-in-one design for 1kW-6kW handheld laser welders, cleaners

Industrial Chiller: Single temperature control,from 1P to 80P