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The chilled water and hydronic heat package engineered for indoor and greenhouse growing circulates water through a closed loop piping system. Circulator pumps force the water through a heat exchanger and a fan draws warm air out, cooling and dehumidifying it as it passes over cold coils. Fan coils are placed in accordance with the facility layout to accommodate warm and cold areas of the growing environment. For flexibility, this system may be broken up into individual temperature zones using either multiple circular pumps, or single pump and electrically operated zone control valves.

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Many commercial cultivation facilities use evaporative cooling, but these systems use mists, sprays or wet pads to lower
air temperature, which will create too much humidity. Standard air conditioning systems only dehumidify by dropping the air temperature in the space near dew point to extract water from the air, which will create a space too cold with a low vapor pressure deficit — too low for proper growth and production.

Our dehumidification system controls relative humidity better, providing both cooling and humidity control. Chilled water cooling provides the ideal growing environment for consistent crop health, where optimum relative humidity levels should range from 40% to 50% for flowering and 50% to 60% for vegetative growing. Using variable speed fans and hot water reheat, exact cooling and humidity control can be achieved — a capability that is critical for growing healthy cannabis crops.

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  • Cooled water or air chillers
    High efficiency boilers for hot water reheat

  • Multiple sizes and types of fan coils that customize the system to meet each grower’s needs and specifications

  • Multi–chiller–loop, and multi boiler loop piping layouts

  • Overhead fan coils, providing humidity control for indoor grown tall crops

  • Under bench fan coils that offer soil level temperature control for bench crops or plug growing

  • Horticultural environmental control systems precisely regulates temperature and humidity while managing additional climate control equipment