Home Built A/C Mister

polyethelene tubing OK

standard sprinkler mist heads OK

home made pvc flaper What's this?

in line water filter. OK

But need some sort of reliable of the shelf on off valve. Any valve will do.

possibly a toilet fill valve but I belive it's to combersome. Why would you need a float valve in a system that has no sump?

Are you using a pump?

The flapper would be some sort of flat plastic wing that would catch the air and raise the valve.

The fill valve would be retrofitted for the flapper.

note the wind is generated by the condensor fan.

But I was thinking this morning if I can find a 220 celanoid valve like the ones used in

automatic sprinkler systems I can wire it to the top side of the electrical contacter

and every time the 24 volt contacter would engage it would make the closed valve open.

But I am open to any better ideas.

I just built a mister system last month, and my bill was $85 less this month! I used a sprinkler solenoid (no flapper required), and got it from home depot for $15 or $20. My whole kit only ran about $30. I also used a washing machine hose instead of a garden hose, handles more pressure. And yes, they work better in lower humidity, but I am in Florida and still found it made a great difference.

Greetings - I went ahead & bought an assembly & it's working great...http://cr4.globalspec.com/thread/38608

You might get some hints from the Company website I referenced - good luck!

Please be very careful. Tailoring shop in my neighbourhood had caught fire as they installed similar arrangement. Mists are highly inflameble it caught fire due to spark in the room. Fortunately no one was hurt.

Suresh Sharma.

Mr Sharma

I will be misting water on the outside of a condensor unit on the outside of a building.

Culd you explain how this maybe flamable?

Thankyou.

Have a great day.

Sorry, I misunderstood as a air mister (perfume) used inside the room for purification of air in the room. If you use the water outside the room then no problem. But still I did not understand function of such mister. Is it for humidifying the inflow of the air. Here in Mumbai,India, I have not seen any body using such mister. May be we are on the sea shore with high humidity in the air.

Suresh Sharma.

You make a good point about humidity.

but water from the tap is pressurized at about 80 psi

If that pressure is run through a fine mister which will slightly atomize the water the expansion from water (fluid ) to vapor shall cause a physical cooling effect this in turn with the air from the already fan condensing unit shall aid in the cooling of the freon in the coils at a faster rate.

allegedly this cuts the cycle run time of the a/c unit supposedly about 30 % its claimed.

In Fla where I live my energy bill is about 350.00 u.s per month on the summer days .

So I am trying to figure real ways to cut cost.

Hammer.

I suggest you should buy "Cool-N-Save" which costs only $100. You may spend more money in developing your own Mister.Its web address is already given in string in past as stated above by our CR4 member.

Suresh Sharma

There is a pre-made mister system sold by Grainger. It has part # 1ZCP9. It is designed with a round center section with 6 misters. It is supposed to fit in the center of an air circulation fan. It could be mounted at whatever distance that would give you good coverage and water quantity. If I were to install it on the condensing unit, I would get an electric solenoid valve, similar to the Red Hat Asco units. If you use a 24 volt design, it might consume more power than the A/C transformer can handle. I would use the contactor from the compressor to control the solenoid. Just buy the same voltage as the compressor.

The spray nozzles seem prone to getting crap stuck in them, even with the filter that I have on it. It may be my fault for using the wrong filter.

I have seen a misting spray head that was supposed to be used in plant nurseries. It had a tiny hole (.025-.035)that sprayed a jet of water onto a flat disc. The water that hit the disc would spread out 360*The water droplets from this were very small in size, and the water stream has lost it's velocity after hitting the disc. Good luck. If you get good results, let us know.

PS. It might be possible to reuse the condensation drain water from the evaporator if it is near enough. It is already cold, and you could substitute a pump for the solenoid valve to make it work.