I have a 3-ton air conditioner unit at the side of my house.
Is there an enclosure or screen that will keep leaves, twigs,
sprinkler water, etc from getting into the unit year-around (not just
On Jul 4, 12:32 pm, firstname.lastname@example.org wrote:
Sprinkler water won't make a big difference as the units are designed
to live outdoors and the water would probably improve heat transfer.
The units also need to breathe and any enclosure that would prevent
leaves and twigs from getting into it would interfere with that
breathing. Any other type of enclosure might reduce the amount of
leaves and twigs, but it would make it tougher to clean out the ones
that did get by.
Wouldn't the uber-soft rain water clean off the fins, my hair-
splitting friend? ;)
The real answer, as far as the sprinkler water, is to adjust the
sprinklers so they don't drench the AC unit. I think the OP is likely
to do more damage with respect to AC efficiency and possibly longevity
by interfering with the air flow.
I was mostly joking, Ed. I feel for people who have issues with hard
water, but like I said in the part that you cut out from the quote,
the sprinklers should be adjusted so the AC unit doesn't get sprayed.
On Mon, 4 Jul 2011 09:32:08 -0700 (PDT), email@example.com wrote:
Water isn't going to hurt it at all. It's meant to be outside. This unit is
transferring the heat from inside your house to the outside air. Any
enclosure will restrict its efficiency significantly. Clean it once a year,
if you must, but otherwise leave it alone. You can put a cover over it in the
fall but be sure to let air circulate (leave a space at the bottom) so you
don't trap moisture (think mold).
On Jul 4, 10:55 am, " firstname.lastname@example.org"
I had to buy a new air conditioner unit because, on the old unit, the
condenser fan had stopped turning but the condenser kept running to
compensate until it burned out. Also, the base of the old A/C unit
was rusted out (from the water from the sprinklers).
Because R-22 refrigerant is no longer legal, the evaporator also had
to be replaced to run with the new R-410A refrigerant.
On 7/4/2011 9:44 PM, email@example.com wrote:
That's odd, we've been installing new R-22 condensing units and the only
difference from the previously available units is the factory no longer
fills them with R-22. They are called "dry" systems and there is quite a
demand for the replacement units. If a customer's R-22 condenser is
beyond repair, we install a new dry unit, pull a vacuum then fill it
with R-22. We don't have to replace the line set or evaporator and it
saves the customer a great deal of money.
Water won't bother it. Leaves and twigs can't get into the unit, unless they
somehow manage to navigate through the fan blades.
Even so, the only thing that MIGHT happen is a leaf gets sucked into the fan
when it first starts up in the spring. The leaf will be instantly shredded
and you'll never know it was ever there.
I guess the sticks will just accumulate in the bottom.
You're really looking for a non-existent solution to a non-existent problem.
The fan in my unit blows out the top, sucking air in thru the coils on
the 4 sides. Leaves could get pulled onto the outside of the
condensing coils if they fell while the unit was running. But when
the unit shut down, the leaves would fall to the ground.
Me and my friend who service AC systems have to use a shop vac to clean
the leaves, pine needles and twigs out of AC condensing units all the
time. The higher efficiency Trane units have a flat top with vents out
the sides of the top cover and I've never had to clean much in the way
of debris out of those particular units. I'll have to post some pictures
of the units we mount on platforms 6 feet or more in the air that rarely
get any trash in them, the coils even stay reasonably clean for long
periods of time.
Nah, the whole damn box fills full of LITTLE leaves, around here.
Tarping is a bad idea- promotes rust from condensation, and makes box a
dandy home for the little animals in winter. Experts I have known
recommended an open-sided carport to set over the unit in the off
season- four corner poles, and a piece of weather proof something for a
A note for anyone installing a new one- set them at least a rake's width
away from house, and if possible 6-8 inches off ground, to keep the
grass out of them, and to keep underside from being an animal haven.
Some builders even bolt a shelf to house wall, but I have always found a
solid concrete block at each corner to work well.
Yeah, at least that far to allow for airflow and avoid reduced
In addition, I covered the surrounding dirt with course stones
to try and reduce the amount of dust and crud that gets sucked
into the vents.
| Malcolm Hoar "The more I practice, the luckier I get". |
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