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False

Plant transpiration rate increases immediately after the lights turn off.

Transpiration rate decreases as the plants lose energy from lighting. Apparent humidity with a typical system rises, however, as the sensible load disappears and air conditioning (cooling) stops. Systems that are reheat capable (a true dehumidifier) will keep the compressor running but will recycle heat back into the space, allowing for humidity control during this transition time.

Further: when a cooling coil turns off, all water on it will evaporate back into the space – contributing to an apparent spike. Compounding this, with typical lights off temperature setpoints being 3-5F cooler, there is an apparent spike in RH of roughly 5% for every 2F cooler, despite actual moisture levels in the space remaining the same.

False

HEPA filters are required to prevent the spread of mold spores and mildew.

HEPA filters are required to prevent the spread of mould spores and mildew

MERV 11-12 provide adequate arrestance. Our standard MERV 13 filters easily meet this need. Mold spores are typically between 3 and 40 microns in size – MERV 13 offers a 95% arrestance to 1 micron in size.

False

Separate heating, cooling and dehumidification systems are more efficient.

Separate heating, cooling and dehumidification systems are more efficient. It is vastly more efficient to have all three functions integrated into one piece of equipment – If you have a separate dehumidifier in the space, the heat of rejection of that device needs to be handled by oversizing your cooling only air conditioner – having that built into the same piece of equipment allows you to more intelligently reject heat when you need to. Other manufacturers falsely claim that by offering a more efficient dehumidifier, rejecting into the space, that you will save in operating costs. They fail to factor in the increased cooling costs of dealing with the dehumidification heat rejection, and the increase in cooling only system size, leading to a much higher total cost of ownership.

False

Because of the complications of bringing in 100% outside air, economizer cooling isn’t available for grow rooms.

Because of the complications with bringing in 100% outside air, economizer cooling isn’t available for grow rooms. Our patent-pending water side economizer paired with our dry coolers allow us to reduce your energy costs by up to 30% over the course of the year – all without diluting your CO2 levels, introducing outside contaminants or needing to control exhaust odors.

False

An HVAC unit that combines cooling and dehumidification doesn’t adapt well to all stages of growth and load.

A unit that combines cooling and dehumidification doesn’t adapt well to all stages of growth and load.

Our design allows for modulation of compressor capacity and a varying sensible heat ratios through varying airspeed and bypass damper.

False

All outdoor heat rejection devices on split cooling systems are the same.

A unit that combines cooling and dehumidification doesn’t adapt well to all stages of growth and load.

Our design allows for modulation of compressor capacity and a varying sensible heat ratios through varying airspeed and bypass damper.