First here's a little background. I'm working on a multi-family residence. I'm trying to figure out how much (if any) continuos ventilation I need to provide for each apartment. In living areas I need at least .35 ACH or 15 cfm/person whichever is greater. Energy Star says that for my...
I second the vote for DuctSox. It looks good (you can get it in just about any color you want). However not all fabric duct is created equal. Some of it looks like cheap plastic and sounds horrible. Use DuctSox Verona or Sedona. Also give them airflows and lenghts and they will design it...
I've done 100 to 200 sq. ft./ton in restaurants depending on the equipment they have in there. Obviously calculating the actual heat gain is the better way to do it, but as we all know sometimes you don't have that information.
You can heat trace your condensate trap, or run the drain below the attic into a plenum space above a ceiling (if available). Locate the trap in this plenum space.
I have designed several VRF systems, typically I use Sanyo or Mitsubishi. Everyone needs to remember there are heat pump (heating or cooling) and heat recovery (heating, cooling, or simultaneous) VRF systems. Also each mfg does things differenty. Sanyo will cool down to 14F. It will provide...
I am working on a warehouse that will have a battery charging station in it, and I will need to provide exhaust. I have found information on battery charging rooms talking about number of air changes per hour, but since this is just a small corner space of the whole warehouse, that doesn't...
Try your local Carrier or Trane office. Often they will have "Air Conditioning" classes at night, around $400 or so. They will teach you the basics of HVAC design, equipment types (chillers, air handlers), system types (VAV, WSHP), duct design, controls, etc. Very informative for the basics...
