Swimming Pool Air Conditioning Help

Hi all,

We have been asked to install an air conditioning system into a new private residential indoor swimming pool in order to provide cooling in the summer and heating in the winter

we have been told by the builder that the customer isnt having a pool cover and that the client will be maintaining the pool temp at 28C. We have therefore been told that there will be high humidity levels.

we havent installed a system into a swimming pool before and i have chosen a ducted system as we can hide everything above the false ceiling being put in so it looks nice and neat

so i need to know if an a/c system will be ok in a swimming pool environment with high humidity levels and whether or not the chemicals used in a pool will affect / corrode an a/c system as the air is being passed through the system

any advice on this would really help

thanks

paul

Installing a 'run of the mill' split system will not be enough to cope with the amount of latent heat being produced within the pool hall atmosphere. The most practical system to install would be a heat pump unit which will be able to dry out the air and keep reliable temperature. Check out a company by the name of Calorex and they will be able to supply you an appropriate system for your environment.

Regards
Jase

Try looking up Pool Pak on the net.
We at Trane actually reps them also., i just finished doing a calc on an install on an indorr pool. The units are somewhat special, Including partial and full pool water condensers etc. I would not use a residental unit in the install. If I can help you out with a calc send me a note.

Bruce

thanks for your replies,

i was looking to use commercial high kw systems from Mitsubishi Heavy, am i definitely on the wrong track with this idea? will they definitely not be able to work in these conditions?

as i said before i dont have any experience with swimming pools which is why i need the help!

cheers

paul

http://www.dectron.com/html_en/index.asp These units work well, can heat the pool, dehumidify, cool the air, warm the air, etc. Made just for your aplication.

Id say take all fresh air condition it then put it in the space and vent the old air out.

This way les humidity, les chance of chemical interaction, and cheaper power on the long hual.

you need to keep the air temp 2 deg above the water temp to stop excessive water evaporation

Hitachi also offer a service to put most of there kit through an out of house specialist who treat the coils with anti-corrossive agents for special applications. If your going to do the install then maybe have a chat with Hitachi-tap them up for the company who treat the coils, and have this company undertake the same service to kit specifically designed for this environment-not room air conditioners as they'll never cope with the duty.

I worked on a few swimming pools last year. Fairly old kit R-22 based. Used the pool water to disipate condenser heat like a chilled water system only on the discharge side. The evaporator blasted through the ventilation ducts acting as a dehumidifier.

To be honest this was loads of grief. My advice........think carefully about taking the job on, and be sharp with your warranty terms or you'll never hear the end of it!

J

Hiya,
Pools are different from normal rooms. The reason for this is because typically, the control temp is around 30 Deg C or one degree above pool water temp. This is to prevent condensation on building fabric etc.

This means that, for the most part, the cooling needs (if any) can be met by fresh air.

Try looking at a specialist pool unit like Genvex or Calorex etc.

Also, remember that you may have to heat the place to 30 degrees inside when its 22/23/24 etc outside. Very few commercial (heat pump) splits will heat under high indoor AND outdoor coil temps........most say (for heating) not more than 21 outside against 24 inside.

Have fun!

Calorex,
Get them to spec a unit for you, ,job done.
If Calorex is too expensive for the customer, walk away. Its not worth it ;)

biggest heat loss from a pool is evaporation.

Dectron invented the system years back. Dehumidify the air, condensate goes back to pool, you can rect the heat to the pool or a remote condenser.

Blanket the windows with the supply air

Keep the space under a slight negative pressure especially in the winter else you will rot your walls out

Quote:

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Originally Posted by The MG Pony

Id say take all fresh air condition it then put it in the space and vent the old air out.

This way les humidity, les chance of chemical interaction, and cheaper power on the long hual.

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In winter ventilating too much gets RH down and makes the water evaporate faster from the pool and the surrounding wet deck. It is like putting out fire with gasoline.

Using a textile duct would be a good idea for the air distribution as the duct is non corrosive, so will not react with the chlorine.

lol old post i know but....A/C in a pool hall, builders never seem to have an idea....

My query is how do u calculate the load in pool area... how much RH to maintain. I am well versed with HVAC and doing design for past 7 years but yetr to do any pool design. A detailed reply on calculation will be worthwhile.
:)

?????:-(:-(:-(