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Oh ok. So basically given my 24,000 btu unit, if there is less than 9400 btu of latent heat (which is the number the unit is rated at for latent), say there is 2000 btuh. Does that mean that the unit will actually be 'transfering' the rest of its capacity to sensible cooling? (ie. the unit...

Lets assume the following in a single room: Sensible gain: 20662 latent gain: 1662 total: 22324 I am looking at a mr slim type rated at 24,000 btu unit with the following: sensible capacity: 14800 btuh latent capacity: 9400 btuh I see the total for the unit is greater than the total heat gain...

If I have a Oven Room (110 sqft) with one louver for exhausting air with a propellar fan and one louver for pulling in outside air. What method do I use to size the fan (CFM-wise) in order to maintain my oven room to equal outdoor temperatures? Lets just assume I'm generating 20000 btu/h from...

I had a hvac tech come out due to no cooling. He said i need to replace my high pressure switch and that the contactor was bad and needed to be replaced. 1) what are the purposes for each 2) what generally causes them to go bad? thanks in advance.

something like this: http://www.elitesoft.com/web/hvacr/cadpics.htm

Is there a good place where I can purchase a good set of hvac details in CAD format? Ive been looking at a few sites and Im not sure if they are all pretty much the same thing or theres a certain one that is better than others. thanks

i dont mind travelling as long as the seminar/class is worth it. which is why im trying to find out if anyone has heard of a good one in particular. thanks

Does the NEC seminars strictly focus on teaching codes? I'm more in it to learn how to do wiring/sizing etc etc. And of course I know there will be codes involved but I am not really looking for a 'code' only course. Do the NEC seminars still match with what Im looking for?

Does anyone know of any company/seminars that offer quality electrical design for buildings? I am trying to get into the field and wanted to see if there is a good place to start. Thanks in advance.

If a building has a controls system which ties multiple thermostats to a single air handler (Trane Tracker). The room setpoints for Heating is set to 68, all of the room temperatures are below 68 as reported by the Trane Tracker system, BUT the system is calling for cooling. Is this simply a...

Im trying to size a 100% OA unit. What is the typical way to do this? I always thought you would pick the point where the humidity ratio was the highest for that region. Is this the correct way?

nevermind, i think i figured it out. correct me if im wrong. assuming the exterior wall is west facing...the exterior room will reach peak load at say 5pm, while the interior peak is say 3pm. so if the Tstat is in the exterior room, at 5 pm the indoor unit will be on satisfying the exterior...

Say I had a split system serving 2 rooms, one being exterior and one being interior space. I understand you should not group these two together on the same zone bc they have different cooling loads. But why can you just not have more air flowing to the exterior room and have the damper in the...