Choosing a Central Cooling Solution for Commercial Mushroom Farms
Large commercial mushroom farms often operate multiple incubation rooms, fruiting rooms, packaging areas, and cold-storage rooms at the same time.
Instead of installing an independent refrigeration unit for every room, large facilities can use a central chilled-water system. The chiller supplies chilled water to multiple mushroom air handling units, or AHUs, which independently control the environment in each growing room.
Both the KINGFIT Oil-Free Magnetic-Bearing Chiller and the KINGFIT Low-Temperature Screw Chiller can be used as the central cooling source. The correct choice depends mainly on the required chilled-water temperature, room functions, operating load, and long-term energy cost.
Chilled-Water Temperature Range
The KINGFIT Oil-Free Magnetic-Bearing Chiller provides chilled water within a range of −10 to 0°C.
It is suitable for central cooling systems serving:
- Mushroom incubation rooms
- Fruiting rooms
- Spawn-running rooms
- Packaging areas
- General mushroom cold-storage applications
The KINGFIT Low-Temperature Screw Chiller provides chilled water within a lower range of −30 to −10°C.
It is better suited to projects that require deeper cooling or lower process temperatures, such as specialized cold-storage rooms and other low-temperature applications.
Central Chiller and AHU System for Mushroom Farms
In a centralized mushroom climate control system, the chiller produces chilled water and distributes it through insulated water pipes to AHUs installed for different growing rooms.
Each AHU can be configured to manage:
- Cooling and heating
- Humidification
- Fresh-air and return-air control
- CO₂ concentration
- Air circulation
- Room temperature and humidity monitoring
This arrangement allows one central chiller plant to serve multiple mushroom rooms, while every room maintains its own environmental settings according to the mushroom variety and cultivation stage.
For example, incubation rooms may operate at a higher temperature, while fruiting rooms require lower temperatures, higher humidity, and more accurate fresh-air and CO₂ control.
Efficiency and Maintenance
The oil-free magnetic-bearing chiller uses magnetic-bearing compressors and variable-frequency technology. It can continuously adjust cooling output according to the actual demand of the mushroom farm.
This is especially useful in facilities where the cooling load changes throughout the day or where different growing rooms enter fruiting and incubation stages at different times.
Its oil-free design also eliminates the conventional lubricating-oil system, reducing routine maintenance and preventing oil-film resistance from affecting heat-transfer performance.
Conventional screw chillers require regular maintenance of lubricating oil, oil filters, and related components. However, they remain an effective choice when lower chilled-water temperatures are required.
Temperature Stability
Stable chilled-water temperature helps AHUs maintain consistent growing-room conditions.
The KINGFIT Oil-Free Magnetic-Bearing Chiller can achieve outlet-water temperature control accuracy of up to ±0.1°C, supporting precise temperature control for commercial mushroom cultivation.
The low-temperature screw chiller typically provides temperature control accuracy of approximately ±0.5°C, depending on system configuration and operating conditions.
Which Chiller Is Suitable for Your Mushroom Project?
Choose an oil-free magnetic-bearing chiller when the project requires:
- A central cooling system for multiple growing rooms
- Chilled water between −10 and 0°C
- High efficiency under changing or partial loads
- Precise chilled-water temperature control
- Lower routine maintenance requirements
- Long-term energy savings
Choose a low-temperature screw chiller when the project requires:
- Chilled water below −10°C
- Deep low-temperature cooling
- Specialized mushroom cold storage
- A more moderate initial equipment investment
For large commercial mushroom farms, the final system should be selected according to the number of growing rooms, total cooling load, mushroom varieties, cultivation stages, local climate, chilled-water temperature, and annual operating hours.
KINGFIT can provide a complete centralized mushroom climate control solution, including the central chiller, chilled-water piping system, mushroom AHUs, fresh-air control, humidification, CO₂ management, and intelligent control system.
Contact KINGFIT for a customized central climate control solution for your commercial mushroom farm.