The Global Air EC1 Fan Speed Controller is a thermostatic controller designed to automatically adjust the speed of EC extraction fans in hydroponics and indoor growing environments. By monitoring temperature inside a grow tent or grow room, the EC1 increases or decreases fan speed to maintain a stable climate that supports healthy plant development.
This compact controller connects directly to compatible Systemair EC fans using active cables and draws power from the fan itself. This means there is no need for an additional mains power connection, helping keep your grow room wiring simple and organised.
Key Benefits
• Automatic thermostatic control of EC fan speed
• Maintains stable grow room temperature
• Adjustable minimum and maximum fan speed settings
• Plug-and-play connection with compatible EC fans
• Powered directly from the fan using active cables
• LED indicator shows when temperatures exceed the set level
• Compact controller ideal for grow tents and grow rooms
Technical Specifications
• Controller Dimensions: 9cm × 6cm
• Temperature Probe Length: 4m
• Compatible with Systemair EC fan range using active cables
How It Solves Grow Problems
Temperature fluctuations are common in indoor growing environments due to lighting systems and changing environmental conditions. If extraction fans run too slowly, heat can build up in the grow room. If they run too fast, they may remove humidity too quickly or create unnecessary noise.
The EC1 Fan Speed Controller automatically adjusts fan speed based on the grow room temperature. As temperatures rise, fan speeds increase to remove heat. When temperatures drop, the fan slows down while maintaining a minimum airflow level. This ensures consistent ventilation, helping maintain stable temperature and humidity levels that support strong vegetative growth and healthy flowering.
Maintaining stable airflow also improves CO₂ exchange and supports better nutrient uptake in hydroponic systems, coco or soil grows.
How to Use
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Connect the EC1 controller to your EC fan using the supplied male-to-male active cable.
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Ensure the fan uses compatible Systemair EC active cables with white connectors.
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Place the temperature probe at canopy height within the grow tent or grow room.
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Use the temperature dial to set your desired maximum temperature.
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Adjust the minimum and maximum fan speed dials to define the operating range.
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The controller will automatically increase or decrease fan speed to maintain the chosen temperature.
For systems running both intake and extraction fans, the EC1 can be used with an Active Y-splitter cable to control two EC fans simultaneously.
