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  1. Cooch42

    LIEBERT EER

    Can anyone confirm a Liebert DS077KU EER of around 3.5? -Nick
  2. Cooch42

    Air Handler Noise Reduction

    I'm specifying an 8000 CFM Aaon V2 series dx air handler for a telecommunications application. Space is extremely limited and this unit has a very small footprint, which is one of the reasons for choosing. The unit is located within the equipment space where a few people are working. The dbA...
  3. Cooch42

    WAREHOUSE HV DESIGN

    DrRTU, 3-4 X/hr is a lot of CFM for large warehouses, are you only running this in the summer? thanks, Nick
  4. Cooch42

    WAREHOUSE HV DESIGN

    Chris, Yes bringing in 100% OA will not save energy in comparison with unit heaters, but in comparison with indirect fired MUA's the delta T of 160 allows bringing in less air to satisfy the load, and not running the exhaust in winter keeps the heat in the space longer. I suppose the unit...
  5. Cooch42

    WAREHOUSE HV DESIGN

    Hi, I am designing the H&V for a warehouse and have a question for the experts. I'm heating and ventilating using high temp rise/ high velocity space heaters which bring in 100% outdoor air (Cambridge S-series). In the winter I wasn't planning on running any exhaust, but simply blow the space...
  6. Cooch42

    Window Shade Coefficient

    I'm running a cooling load on a south exposed office area w/ all glass (1" tinted, low e w/ thermal break) walls. There is a 14' outside overhang. I'm using a current default shade coefficient of 0.811 in HAP. I believe I need to tweak this coefficient to reduce the grossly oversized load...

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