Why are the heating/cooling units in the southwest located on the roof
Why are the heating/cooling units in the southwest located on the roof
(OP)
I noticed on a trip out to Las Vegas that all of the residential areas have homes with what looks like the air conditioning unit located on the roof.
Are these air conditioning units that I am seeign on the roofs of the houses? If so why are they located there?
If not what are they? (Solar hot water heating???)
Are these air conditioning units that I am seeign on the roofs of the houses? If so why are they located there?
If not what are they? (Solar hot water heating???)





RE: Why are the heating/cooling units in the southwest located on the roof
RE: Why are the heating/cooling units in the southwest located on the roof
The problem may be getting more efficiency out of the exchanger. The ground is quite hot during the day and the air is generally stagnant. Putting the exchanger 30 ft into the air may result in getting a better air flow and better efficiency.
TTFN
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RE: Why are the heating/cooling units in the southwest located on the roof
RE: Why are the heating/cooling units in the southwest located on the roof
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: Why are the heating/cooling units in the southwest located on the roof
It might also be to get the coils away from wind-driven sand, which can be quite abrasive to aluminum fins.
RE: Why are the heating/cooling units in the southwest located on the roof
I believe in Las Vegas, most people have both a swamp cooler and a refrigerated air system. The evap coolers give you cheap cooling up to the mid 90's, and the refrig system is used for truly hot days.
RE: Why are the heating/cooling units in the southwest located on the roof
On the other hand, I have seen the two systems mixed before on a dining facility. Evaporative cooling was used in the kitchen as make up air for the exhaust hoods, and the dining are was refrigerated air. The key is to maintain the kitchen at a negative pressure so the air from the evaporative cooler never gets to the AC coils.
RE: Why are the heating/cooling units in the southwest located on the roof
RE: Why are the heating/cooling units in the southwest located on the roof
The tell-tale sign of a swamp cooler on the roof is massive streaks of white salts running down the roof. Did you see that? If not, it definitely isn't a swamp cooler; sooner or later they always overflow! The stain is permanent too.
RE: Why are the heating/cooling units in the southwest located on the roof
Take the "V" out of HVAC and you are left with a HAC(k) job.
RE: Why are the heating/cooling units in the southwest located on the roof
RE: Why are the heating/cooling units in the southwest located on the roof
RE: Why are the heating/cooling units in the southwest located on the roof
a local school has about 10 Carrier slimline units mounted on the roof, to stop the kids from kicking the condenser coils.
B.E.
RE: Why are the heating/cooling units in the southwest located on the roof
And no they typically aren't 'swamp' type.
In other regions many units are on the ground because the main coil & blower section is nearby in the basement.
www.vanderweil.com
RE: Why are the heating/cooling units in the southwest located on the roof