This system is for very aggressively venting rooms and closets from the ceiling.
This has been designed to work with the home's HVAC system by using the duct box (purchased separately) and ducting to the HVAC return system. This is an efficient and effective way to circulate and reprocess the hot air generated by electronic components. If for whatever reason it is not possible to connect to the HVAC system, then it is recommended to vent from the equipment room or closet to another area. To maximize effectiveness and to ensure the unit operates silently, it is strongly recommended to use with the TC-ALT or ASC temperature controllers as these will vary the speed of the fans based on temperature.
This unit features 4 large 92mm magnetic bearing fans which provides aggressive airflow while staying silent for the long life of the fans (ball bearing fans get louder over time).
Harsh Environment Option. This unit is also available with a fans engineered with an industry leading IP68 rating for harsh environments which is ideal for outside, wet, humid or especially dirty and dusty areas. The units are also effective in high altitudes and in extreme temperatures. It should be noted that harsh environment does not mean better quality or longevity, just enhanced engineering and production to protect against these environmental situations. In practical terms this means that unless truly require the added protection, there is no reason to purchase these fans.
While most people believe that the heat generated by components is undesirable, it is a matter of perspective. It can be damaging to electronic equipment but, in the winter, most regions pay good money to heat their homes and even when the weather is milder and we seek cooler temperatures (air conditioning). The entire purpose of the HVAC system is to take warmer air and convert it to cooler air. It may not make sense to increase the ambient temperature of the incoming air, but it is much easier for the HVAC system to 'reprocess' air that is simply heated, or really just warm by most standards. For this reason, you never want to vent outside of the home - when venting outside, that air is often times replaced by air from the attic (through recessed lighting or other penetrations) or from outside where the air can be hot, humid, smelly...
