If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a bit of
the otherwise lost efficiency.

Just sayin'...

On Sun, 25 Jul 2010 13:32:20 -0500, HeyBub wrote:

If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a bit
of the otherwise lost efficiency.

Just sayin'...

Take a leaf blower and blow it out every month.

HeyBub wrote:
If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a bit of
the otherwise lost efficiency.

Just sayin'...

One of these days I'll add a 1 or 2 second delay to the blower fan so
when it blows, it's cold. And it won't give that blast of super humid
air either.

Tony wrote:
HeyBub wrote:
If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a
bit of the otherwise lost efficiency.

Just sayin'...

One of these days I'll add a 1 or 2 second delay to the blower fan so
when it blows, it's cold. And it won't give that blast of super humid
air either.

Uh, that was supposed to be a 1 or 2 MINUTE delay, not seconds.

On Sun, 25 Jul 2010 15:22:53 -0400, Tony wrote:

Tony wrote:
HeyBub wrote:
If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a
bit of the otherwise lost efficiency.

Just sayin'...

One of these days I'll add a 1 or 2 second delay to the blower fan so
when it blows, it's cold. And it won't give that blast of super humid
air either.

Uh, that was supposed to be a 1 or 2 MINUTE delay, not seconds.

The switch in my SUV is bad for air on low. It has 5 positions. When it's
hot out I turn it on low, the compressor starts but the fan doesn't blow.
Once I back out of the garage and let the motor warm up for a minute or
so I turn it to 5 and have instant cold air.

On 7/25/2010 11:32 AM HeyBub spake thus:

If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a bit of
the otherwise lost efficiency.

Just sayin'...

That idea could be patentable.


--
The fashion in killing has an insouciant, flirty style this spring,
with the flaunting of well-defined muscle, wrapped in flags.

- Comment from an article on Antiwar.com (http://antiwar.com)

On 7/25/2010 1:32 PM, HeyBub wrote:
If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a bit of
the otherwise lost efficiency.

Just sayin'...



Sounds like a good idea, I can implement it now on a number of
AC units that I've serviced. The universal replacement condenser
fan motors have a pair of leads with insulated 1/4" fast on
connectors that determine rotation for the motor, it would be
quite easy to reverse the condenser fan motor during the anti
short cycle time delay for the compressor which I usually set
for 3-5 minutes. When the thermostat calls for cool, run the
fan backwards for 60 seconds then let it spin down during the
remainder of the anti short cycle delay so there would be no
stress on the components because of reversing a fan running at
full speed. Me and my helper cleaned 6 condensers and 3 evaporators
this morning at one restaurant, my hair hurts and I'm a bit
dehydrated. Darn this Global Cooling!

TDD

In article ,
The Daring Dufas wrote:

On 7/25/2010 1:32 PM, HeyBub wrote:
If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a bit of
the otherwise lost efficiency.

Just sayin'...



Sounds like a good idea, I can implement it now on a number of
AC units that I've serviced. The universal replacement condenser
fan motors have a pair of leads with insulated 1/4" fast on
connectors that determine rotation for the motor, it would be
quite easy to reverse the condenser fan motor during the anti
short cycle time delay for the compressor which I usually set
for 3-5 minutes. When the thermostat calls for cool, run the
fan backwards for 60 seconds then let it spin down during the
remainder of the anti short cycle delay so there would be no
stress on the components because of reversing a fan running at
full speed. Me and my helper cleaned 6 condensers and 3 evaporators
this morning at one restaurant, my hair hurts and I'm a bit
dehydrated. Darn this Global Cooling!

TDD

Most fans don't work all that well in reverse. I'd be curious to see how
much the CFM plummeted.

On 7/25/2010 4:44 PM Smitty Two spake thus:

In article ,
The Daring Dufas wrote:

On 7/25/2010 1:32 PM, HeyBub wrote:

If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a bit of
the otherwise lost efficiency.

Sounds like a good idea, I can implement it now on a number of
AC units that I've serviced. The universal replacement condenser
fan motors have a pair of leads with insulated 1/4" fast on
connectors that determine rotation for the motor, it would be
quite easy to reverse the condenser fan motor during the anti
short cycle time delay for the compressor which I usually set
for 3-5 minutes. When the thermostat calls for cool, run the
fan backwards for 60 seconds then let it spin down during the
remainder of the anti short cycle delay so there would be no
stress on the components because of reversing a fan running at
full speed.

Most fans don't work all that well in reverse. I'd be curious to see how
much the CFM plummeted.

Are you sure about that? Most fans I've seen have pretty symmetrical
blades, so you'd think they'd be about as efficient in one direction as
the other.

Besides, even if it's a little less efficient during the "backwards"
part of the cycle, BFD: it's only running for a minute to clean the
schmutz off the condenser.


--
The fashion in killing has an insouciant, flirty style this spring,
with the flaunting of well-defined muscle, wrapped in flags.

- Comment from an article on Antiwar.com (http://antiwar.com)

On 7/25/2010 6:56 PM, David Nebenzahl wrote:
On 7/25/2010 4:44 PM Smitty Two spake thus:

In article ,
The Daring Dufas wrote:

On 7/25/2010 1:32 PM, HeyBub wrote:

If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a
bit of
the otherwise lost efficiency.

Sounds like a good idea, I can implement it now on a number of
AC units that I've serviced. The universal replacement condenser
fan motors have a pair of leads with insulated 1/4" fast on
connectors that determine rotation for the motor, it would be
quite easy to reverse the condenser fan motor during the anti
short cycle time delay for the compressor which I usually set
for 3-5 minutes. When the thermostat calls for cool, run the
fan backwards for 60 seconds then let it spin down during the
remainder of the anti short cycle delay so there would be no
stress on the components because of reversing a fan running at
full speed.

Most fans don't work all that well in reverse. I'd be curious to see
how much the CFM plummeted.

Are you sure about that? Most fans I've seen have pretty symmetrical
blades, so you'd think they'd be about as efficient in one direction as
the other.

Besides, even if it's a little less efficient during the "backwards"
part of the cycle, BFD: it's only running for a minute to clean the
schmutz off the condenser.



If you look closely at the squared blades you will notice that one
of the sides is not quite as wide as the other, that's the edge
that cut into the air. It's more pronounced in some conventional
blades but it's there.

TDD

The Daring Dufas wrote:
On 7/25/2010 1:32 PM, HeyBub wrote:
If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a
bit of the otherwise lost efficiency.

Just sayin'...



Sounds like a good idea, I can implement it now on a number of
AC units that I've serviced. The universal replacement condenser
fan motors have a pair of leads with insulated 1/4" fast on
connectors that determine rotation for the motor, it would be
quite easy to reverse the condenser fan motor during the anti
short cycle time delay for the compressor which I usually set
for 3-5 minutes. When the thermostat calls for cool, run the
fan backwards for 60 seconds then let it spin down during the
remainder of the anti short cycle delay so there would be no
stress on the components because of reversing a fan running at
full speed. Me and my helper cleaned 6 condensers and 3 evaporators
this morning at one restaurant, my hair hurts and I'm a bit
dehydrated. Darn this Global Cooling!


Let me know how your experiment pans out.

I'll add your name to the patent.

Jeff The Drunk wrote:
On Sun, 25 Jul 2010 13:32:20 -0500, HeyBub wrote:

If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a
bit of the otherwise lost efficiency.

Just sayin'...

Take a leaf blower and blow it out every month.

The problem with that is when the yard man comes the day after the blow job
and fills the coils with grass clippings. With the above idea, most would
get blowm out within the hour as the compressor cycles.

Right now, I use a pressure washer (gently) with car wash detergent to
spiffy up the coils. Seems to do a pretty good job.

David Nebenzahl wrote:
On 7/25/2010 11:32 AM HeyBub spake thus:

If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a
bit of the otherwise lost efficiency.

Just sayin'...

That idea could be patentable.

I just remembered my T-Bird had something like "comfort control" that
would adjust itself as the car heated up. In the winter it wouldn't
blow cold air, it would wait until the engine was warmed up then the fan
would run. I don't remember if it did the same for the A/C?

Bet you used a couple galons of alki foam.

Restaurants are tough working environment, if they use a lot of
grease and oil.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"The Daring Dufas" wrote in message
...

Me and my helper cleaned 6 condensers and 3 evaporators
this morning at one restaurant, my hair hurts and I'm a bit
dehydrated. Darn this Global Cooling!

TDD

Suppose you did the backwards thing. Blow the dust and dirt out. So,
then the dust and dirt is hanging in the air. When the unit comes back
on, it all sucks back into the coils.

Isn't schmutz a type of dog?

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"David Nebenzahl" wrote in message
.com...


Besides, even if it's a little less efficient during the "backwards"
part of the cycle, BFD: it's only running for a minute to clean the
schmutz off the condenser.

Jeff The Drunk wrote:
On Sun, 25 Jul 2010 15:22:53 -0400, Tony wrote:

Tony wrote:
HeyBub wrote:
If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a
bit of the otherwise lost efficiency.

Just sayin'...
One of these days I'll add a 1 or 2 second delay to the blower fan so
when it blows, it's cold. And it won't give that blast of super humid
air either.
Uh, that was supposed to be a 1 or 2 MINUTE delay, not seconds.

The switch in my SUV is bad for air on low. It has 5 positions. When it's
hot out I turn it on low, the compressor starts but the fan doesn't blow.
Once I back out of the garage and let the motor warm up for a minute or
so I turn it to 5 and have instant cold air.

I'd hope that my low speed goes out but it only has 3 speeds and I use
low often. Guess if I really wanted to I could splice a switch in the
circuit.

Anyway I just realized this was about the condenser and I'm talking
about the evaporator. My condenser coil seems to stay clean, but I am
cutting the grass.

On Jul 26, 8:45*am, Tony wrote:
Jeff The Drunk wrote:
On Sun, 25 Jul 2010 15:22:53 -0400, Tony wrote:

Tony wrote:
HeyBub wrote:
If A/C manufacturers arranged the fan on the condensing unit to run
BACKWARDS for the first few seconds of condenser activity?

It would blow SOME of the mung out of the coils thereby retaining a
bit of the otherwise lost efficiency.

Just sayin'...
One of these days I'll add a 1 or 2 second delay to the blower fan so
when it blows, it's cold. *And it won't give that blast of super humid
air either.
Uh, that was supposed to be a 1 or 2 MINUTE delay, not seconds.

The switch in my SUV is bad for air on low. It has 5 positions. When it's
hot out I turn it on low, the compressor starts but the fan doesn't blow.
Once I back out of the garage and let the motor warm up for a minute or
so I turn it to 5 and have instant cold air.

I'd hope that my low speed goes out but it only has 3 speeds and I use
low often. *Guess if I really wanted to I could splice a switch in the
circuit.

Anyway I just realized this was about the condenser and I'm talking
about the evaporator. *My condenser coil seems to stay clean, but I am
cutting the grass.- Hide quoted text -

- Show quoted text -

I have some shrubs in the area around the condensor, they filter out
most of the grass clippings. I also turn the AC off when cutting
around the condensor. Butt you need a way to reverse the air flow
thru the condensor, and just a leaf blower, etc, is still blowing from
the outside into the condensor radiator, and that doesn't really clear
things out like a reversal of air flow would do.

On 7/26/2010 7:58 AM, Stormin Mormon wrote:
Bet you used a couple galons of alki foam.

Restaurants are tough working environment, if they use a lot of
grease and oil.


I used a quart of concentrate in my foam gun on the end of a
hundred feet of hose. For the evaporators, a two gallon pump
up sprayer mixture of 4-X BASE COIL CLEANER. I went back
today and talked to the owner who had been running the 5 ton
unit without a filter. I considered pumping it down, pulling
the evaporator and taking it out to the parking lot to clean
it like I have before but I was able to take a hose hooked to
the mop sink and blast most of the dirt off of it. A little
messy but it was another 100°F day and it was warm in there
even with 6-7 extra tons of cooling. We cleaned 4 inside
condensers, 3 outside condensers, 2 evaporators inside the
walk-in coolers and of course the crud encrusted 5 ton AC
evaporator. It's a pain but at least nothing is on the roof.

TDD

You were a busy beaver, today? Wish I had accounts like that.

The sprayer at the end of the hose, does that mix the solution as you
go? I've tried to mix on the roof with a garden sprayer or sprinkler.
It never works quite right.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"The Daring Dufas" wrote in message
...

I used a quart of concentrate in my foam gun on the end of a
hundred feet of hose. For the evaporators, a two gallon pump
up sprayer mixture of 4-X BASE COIL CLEANER. I went back
today and talked to the owner who had been running the 5 ton
unit without a filter. I considered pumping it down, pulling
the evaporator and taking it out to the parking lot to clean
it like I have before but I was able to take a hose hooked to
the mop sink and blast most of the dirt off of it. A little
messy but it was another 100°F day and it was warm in there
even with 6-7 extra tons of cooling. We cleaned 4 inside
condensers, 3 outside condensers, 2 evaporators inside the
walk-in coolers and of course the crud encrusted 5 ton AC
evaporator. It's a pain but at least nothing is on the roof.

TDD

On 7/27/2010 9:17 PM, Stormin Mormon wrote:
You were a busy beaver, today? Wish I had accounts like that.

The sprayer at the end of the hose, does that mix the solution as you
go? I've tried to mix on the roof with a garden sprayer or sprinkler.
It never works quite right.


I have two of the guns, one very old and the newer all plastic gun
that has been out for several years. I've gotten a lot of my friends
using them now after they see it in action.

http://www.nucalgon.com/products/coi...rs_coilgun.htm

http://www.youtube.com/watch?v=L3uQEWaPIeE

TDD

That does look totally useful. I've put cleaner on with a garden
sprayer, which works well. For small units, like window AC and 1/3 HP
refrigeration units. However, this looks like it would work well with
large units. (roof tops, etc.)

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"The Daring Dufas" wrote in message
...

I have two of the guns, one very old and the newer all plastic gun
that has been out for several years. I've gotten a lot of my friends
using them now after they see it in action.

http://www.nucalgon.com/products/coi...rs_coilgun.htm

http://www.youtube.com/watch?v=L3uQEWaPIeE

TDD