Water source rooftop chiller unit part in HVAC


rooftop chiller units
rooftop chiller units

The fan coil unit is a common HVAC system terminal device. It can be used independently or in conjunction with other equipment to provide more efficient cooling and heating services. One such example is the water-source chiller.

In terms of common installation methods and locations, it is typically an outdoor unit, often referred to as a rooftop chiller units within the industry.

The low-temperature chiller is a water-cooling device that maintains a constant temperature, flow, and pressure. Here’s how it works:

  1. A certain amount of water is injected into the machine’s internal water tank.
  2. The refrigeration system cools the water.
  3. The internal circulation pump then delivers the chilled water to the equipment that needs cooling.
  4. The chilled water absorbs the heat from the equipment, and the now warm water flows back to the tank for further cooling.

Key features of this unit include:

  1. Compressor: It uses original imported medium-to-low-temperature compressors.
  2. Refrigerants: Options include R404A, R410a, R22/R407C, meeting cooling temperature and environmental requirements.
  3. Temperature Range: It can provide process cooling water between -5°C and -60°C (users can choose different outlet water temperatures based on production needs).
  4. Refrigerant Options: Users can select various refrigerants (chilled water), such as ethylene glycol solution, alcohol, or ternary mixed solutions. And the evaporator can also be designed according to anti-corrosion requirements, using calcium chloride water solution.
  5. Continuous Operation: Designed for 24-hour non-stop operation to meet various continuous production process cooling needs.
  6. Self-contained: The unit comes with its own water tank and circulation pump, eliminating the need for cooling towers and cooling water pumps. Installation and maintenance are straightforward.
  7. Safety Features: Equipped with various safety protection devices, stable performance, low noise, long service life, and user-friendly operation. The LCD display provides clear visibility of operational status.

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