Maintaining the precise grow conditions are extremely challenging, if not impossible with a standard DX air conditioning system. The indoor grow environment undergoes constant load changes and specifically these rapid changes affect the sensible to latent heat ratio. Unmodified DX equipment is unable to adapt to these rapidly changing conditions without adversely affecting the indoor environment. For example, a simple change to the lighting schedule during the flowering cycle greatly affects the load conditions. When the lights are on, the sensible to latent heat ratio is comprised mostly of sensible heat entering the evaporator. At this point, there is a demand for DX cooling.
When the lights go off, there is an immediate shift in the sensible to latent heat ratio, and the latent heat load is comparatively higher. The lights are no longer generating sensible heat and the demand for DX cooling is diminished. However, moisture is still in the air and it needs to be removed to maintain the proper grow conditions. Additionally, the plants are releasing water vapor into the air. They are acquiring water through their roots from the soil and transferring moisture to the leaves, which is then released into the air.
Engineered Solution: The APR Control or APR-E Valve Offers a Unique DX Humidity Control Solution
Cannabis farming is a rapidly growing and extremely profitable industry that poses many challenges. Installing the APR Control can help prevent damage to the crop by seamlessly adapting to these drastic environmental changes, without excess cycling of the DX compressor and thus protecting the HVAC system from failures.
The APR Control can modulate to adapt to the load profile coming across the evaporator coil, in real-time. This ability to load match perfectly and proportionally to widely varying and rapidly changing loads allow DX systems to adapt to any changes that occur throughout the stages of plant development. Integrating the APR Control into your HVAC system results in reliable and stable operation of the DX component of the grow room environmental management system.
The utilization of the APR-E Valve can provide controllable discharge air to manage dewpoint in response to the Vapor Pressure Deficit (VPD) of the plants. Having the ability to control discharge air of a standard DX system as part of your control scenario for maximizing plant yield is vital for grow room success.