Bowmans Mod Shop

Thanks Pedro...briefly read the instructions when I checked the display once it shipped to me but didn't see that bit.

ok i took some pics of the prometia's in a friendly battle.and the mach II to the right is only differant by there is no display and the panel is clear to see the lcd.

first was a friendly crank up both and as i load one the other gets to run no load.so in this pic the new prommie is running at a no load of -44c not bad.(this prometia was checked at the dealer and was told it was one of the best he had seen as far as coldest come into the states)
but my fluke dont lie like a softwear based LCD display does.as so many of the people have been buying these mach II's and just because it reads -60c on the display think it is doing that but not....:)
any ways while this prometia is running no load at -44c and with a ambient room temp of 28.8c which is rather hot(and yes prommies make you room warm,anyone who actually thinks the heat isnt going back into the room is just not thinking)
the modded prometia mach I is running loaded at a nice -41c.

ok now that was friendly enough but lets swap the load and see how the mach II likes a little heat ;)


as you can see the heat load i use stopped the mach II alittle short.
it didnt like my heat....and the modded prommie only goes down to -44c no load and the mach II is -29c loaded

Definitely a good example of why no load temps dont mean too much except look impressive.

Excellent prommie mod by the way. Shows the mach II's price for what it is, inflated, like its display temps :)

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Originally posted by Fushyuguru
Definitely a good example of why no load temps dont mean too much except look impressive.

Excellent prommie mod by the way. Shows the mach II's price for what it is, inflated, like its display temps :)

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I don't see the mach II as over priced...altho expensive, where you going to buy an alternative phase change system?

What the Mach II needs, actually what Chip-con needs is....Bowman....problem solved! :)

well you guys do get a great display and windows interface more flexable hose(less prone to break).it does have some nice features.
it is just ,what do you want to buy and how much can you spend?

if you want just cooling no extra's get a mach I.

want the whole pie get a mach II

or build your own:D

I couldn't agree with you more....What the o/c phase change enthusiast really need is the simple "kit".... then we can build it our self and be damm proud of it! :)

Remember though...you're comparing a highly modified Mach I running R404a to the stock Mach II running R134a...with stock cap tube length. No special evaporator block or extra cap tube length has been done by bowman on the Mach II yet.

I think the Mach II will perform quite well after gas conversion, and special tune up techniques performed by bowman. More will follow, I'm sure. I'm pretty happy with his preliminary results thus far actually...and his great feedback via the forums, phone, etc also.

Edit - all the reviews I read pre purchase were saying not much improvement at all in temps, but more flexibile hose, better software to interface with windows, and upgradeable firmware also. Not quite sure why there is such a price premium for the II over the I but I bought it for the long run anyway.

wow i just went throught this whole thread...man where have i been? u have done seen like 5prommis in this whole thread lol i am in awww gj man!!!

Bowman>

1. Will a better condenser be of great impotance when filling r404a in the Mach I, or is the standart condenser really enough(with extra air flow)?

2. How big will the difference be in performance between an Mach I filled with R404a and no capillary length change compared with a Mach I were the length is changed? Both systems have been given the optimum mass of refrigerant and is therefore not holding the same amount.

Thanks for answering.

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Originally posted by Quickmcj
Bowman>

1. Will a better condenser be of great impotance when filling r404a in the Mach I, or is the standart condenser really enough(with extra air flow)?

2. How big will the difference be in performance between an Mach I filled with R404a and no capillary length change compared with a Mach I were the length is changed? Both systems have been given the optimum mass of refrigerant and is therefore not holding the same amount.

Thanks for answering.

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OK
1st the condensor is very well suited.nothing i have trown at them has affected them with lots of air flow.run the fan at full speed and they are fine,if you run them slower the excess heat causes the hi pressure to rise very bad.

second quetion ....well this is what happenns.if you dont change the cap tubing,you get excess refrigerant flowing into the evaperator that cannot boil of fast enough,this causes the pressure to rise, also because the compressor cannot move that amount of gas fast enough to keep it in a 10hg vacuum,so it goes up to 5psi maybe.
now where i add cap tubing to reduce the flow and slow down the refrigerant going to the evap.this keeps excess refrigerant from filling the lines and thus keep the load down on the compressor and less load = more vacuum.more vacuum = colder temps.so the prommie with 2 to 5psi low side is only boiling at-40 to -45c where the prommie running in a vacuum is boiling close to -60c
which would you want?;)

Bowman>

Thanks for a fulfilling answer. It is very useful knowledge.

Yep. And if the cap tube goes the other way, being too restrictive, then the high side pressure must be elevated in order to push enough refrigerant through. This raises the temperature of the liquid and the pressure which the compressor must pump against, both of which give you a higher evap temp. Aside from that limit, less restrictive gives you faster pulldown, while more restrictive gives you lower temps. Not restrictive enough or too restrictive, either way you lose. And just right means just right for one specific heat load. Everything is balance and trade-offs.

A TEV valve would do the job?

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Originally posted by Quickmcj
A TEV valve would do the job?

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TEV's cannot opperate at that low of a heat load.too bad thou

Yeah...

I have actually been told the same by a technician at Chip-Con but would not believe him.

But when you says so too ;)

well WxChaser i got yours changed out.and is running.the factory fan isnt running fast enough to keep the head pressure down,so i added one temperary until i wire the factory fan straight to the 12v power source.
but this is a nice one.
unloaded temps are hitting -58c which supprised me a little.this one i added a slightly differant cap tube lenght.and it seams to be working slightly better:D

ok this is where the boys meet the men:D

fully loaded and i am again supprised it is running so strong hard to see in the pic but -45c loaded..:D

looking great!

could you hook the unit up to a USB and see what the evaporator temp is like?? seems to me the sensor on mach II reports 10-15C too low :(

Bowman you are one awesome dude (I can't wipe the smile off my face at all now). :toast:

Will call shortly.

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Originally posted by WxChaser
Bowman you are one awesome dude (I can't wipe the smile off my face at all now). :toast:

Will call shortly.

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:toast: Excellent! I'm really happy for you....I know you can't wait to get that prommie back in you hands. :slobber:
Bowman did it again!.....:)

That's great!

Bowman, you should really consider a Europe Tour - all mods you can make here could pay you a very nice vacations :D

Quote:

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Originally posted by JCviggen
looking great!

could you hook the unit up to a USB and see what the evaporator temp is like?? seems to me the sensor on mach II reports 10-15C too low :(

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Very good idea JC, please do that I also suspect the measure are not to accurate..it is just a matter of connect the the USB to any internal port and install the software, myself or any other MachII user are more than happy to send the SW you if necessary:)

Here are what I get with a standard (no 404 mod, no extra fans) unit a idlle

http://pprocha1.no.sapo.pt/MachII_Temp.jpg

Bowman,

Did you just add some cap tube to WXChaser's unit? If so have you got some pic's of a cap tube join? I would have thought that was a pretty trick feat.

Quote:

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Originally posted by Quickmcj
Bowman>

Thanks for a fulfilling answer. It is very useful knowledge.

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I will ad to Bowman;
A prommy R404a with standard kapillaertube, can't hold mutch, its only a little better than standard Prommy.
But one thing.. it have a VERY fast booting time. The temp drop instantly, so if that is importent, it might be an option. The mod is very chip an not complicated to do.:rolleyes:

Quote:

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Originally posted by Tom Holck
I will ad to Bowman;
A prommy R404a with standard kapillaertube, can't hold mutch, its only a little better than standard Prommy.
But one thing.. it have a VERY fast booting time. The temp drop instantly, so if that is importent, it might be an option. The mod is very chip an not complicated to do.:rolleyes:

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Til mig snakker du bare dansk Tom ;) Men i respekt for de andre:

The problem is that it really is not cheap. 2000-2500 DK kr is allot of money just for a refill with r404a and an adjusted capillary tube. I will just have to see if I can find a person who will do it for less.

Bowman come to Denmark lol ;)

Any updates regarding your projects?

Hey Bowman, How did you build that triple evaporator? I see you ran three capillaries. How did you run all three? Is that all ran off the same compressor?

Quote:

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Originally posted by Quickmcj


Bowman come to Denmark lol ;)

Any updates regarding your projects?

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No i am just up to my head in prommies.....that attack me at night;)
maybe i will work on something else tonight.

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Originally posted by JToolz
Hey Bowman, How did you build that triple evaporator? I see you ran three capillaries. How did you run all three? Is that all ran off the same compressor?

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yep 3 cap tubes with 3 evaperators and one compressor.that is hard to do.but it does run but takes alot of work to get it to run right.cap tube lenght is very important on a system like this.
i have made a brand new return distribution manifold i hope to brase up tonight.with a build in accumulator to hold the liquid refirgerant longer and to help my subcooling more.effecientcy is the name of the game.squeeze all i can from the refrigerant.:D

i may post a pic of the manifold tonight

Quote:

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Originally posted by bowman1964
No i am just up to my head in prommies.....that attack me at night;)
maybe i will work on something else tonight.



yep 3 cap tubes with 3 evaperators and one compressor.that is hard to do.but it does run but takes alot of work to get it to run right.cap tube lenght is very important on a system like this.
i have made a brand new return distribution manifold i hope to brase up tonight.with a build in accumulator to hold the liquid refirgerant longer and to help my subcooling more.effecientcy is the name of the game.squeeze all i can from the refrigerant.:D

i may post a pic of the manifold tonight

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I am very curious to see how you hook the whole assembly up. I am interested in a setup like that.

Bowman, could you post a picture of the Mach II cooling head from the hose side, showing the screw holes relative to the hose. I'm seeing pictures of the Mach II head which seem to differ by 180 degrees.

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Originally posted by bmg
Bowman, could you post a picture of the Mach II cooling head from the hose side, showing the screw holes relative to the hose. I'm seeing pictures of the Mach II head which seem to differ by 180 degrees.

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well look at this pic from a earler post which shows the holes are below the hose on the new mach II


http://www.xtremesystems.org/forums/...&postid=200030

well this is my new manifold for my 3 block evap system(going on my cascade when i get to work on it...).but for the time being i well test it with my 1hp condensor assm.

Damn you're good! :D

That looks sweet, great work bud.

Quote:

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Originally posted by WxChaser


That looks sweet, great work bud.

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well thanks...

by the way yours is running as we speak,,has gotten my room hot with 2 prommies in here running,right now it is 29c (84.2f) in here and it has caused yours to warm up to blistering -43c loaded ....oooooo baby not to bad for this hot room temp

You already have it running like a top :toast:

Bowman,

When you get a chance, can you post a picture on how you wired your 1hp compressor. I believe we have the same compressor.

thanks
baker18

And what about oil puddling when you test on that 1hp compressor? Will you use a oil separator?

Bowman, are you building a autocascade system or a classic cascade?

Quote:

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Originally posted by berkut
And what about oil puddling when you test on that 1hp compressor? Will you use a oil separator?

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Have no need for a oil seperator on the 1hp unit,it is just a classic refriegeration setup.i do have a accumulator built into the new manifold but that one will use a cap tube to keep the oil feeding to the compressor(is that what you were refering to?)


the cascade i have does use a oil seperator.and it is a twin compressor cascade.

Quote:

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Originally posted by Apoc
Bowman, are you building a autocascade system or a classic cascade?

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welcome to the Xtreme......:toast:

glad to have you here.

and i yes classic cascade:D

i have a few asking how does my manifiold work ?well this drawing should explain it.

as the excess refrigerant boils out of the evaperators into the hoses. it must fall down into a catch tube(accumulator sorta)this bottom part of the tube collects and let the excess boil off properly,but this can cause a problem with oil return.so i attach a piece of large capillary tubing so the oil can slowly drain back into the return hose going back to the compressor.
now this has a great purpose other than keeping excess refrigerant from the comprssor.it holds the liquid in the bottom of the tube which has the capillary tubes coiled around it.this will really cool the cap tubes giving me great subcooling.and making sure the extra refrigerant is being boiled off.

How do you run the three capillaries?

I must say...that is a really clever design whether or not it is your design, but applause to you if it is.

I do not know if that drawing is basic knowledge among cooling technicians, but if not I would not show it to the “public” so to speak. Companies can copy your excellent work with no trouble at all.

Then again…if it IS basic knowledge I glad you posted the picture, to clarify things ;)

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Originally posted by Quickmcj
I must say...that is a really clever design whether or not it is your design, but applause to you if it is.

I do not know if that drawing is basic knowledge among cooling technicians, but if not I would not show it to the “public” so to speak. Companies can copy your excellent work with no trouble at all.

Then again…if it IS basic knowledge I glad you posted the picture, to clarify things ;)

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i agree.. bowman could profit off his ideas easily..

Bowman could take over Chip-Con and put out a way better product.

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Originally posted by JToolz
Bowman could take over Chip-Con and put out a way better product.

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yea.. or bowman couls make his own and outsell them with better products and hire me to help :)

Quote:

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Originally posted by Dissolved
yea.. or bowman couls make his own and outsell them with better products and hire me to help :)

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LOL...very true. He could make tons of money.

Soon as I win the Lotto I'm going to buy out Chip-Con.

Then you'll see some changes Homer....... bowman1964
in charge of R&D.... The Dude in charge of PR.... OPP
in charge of Benching & World Records.... Who's in
charge of the RMA Dep't?.... nobody 'cause there won't
be such a thing. Me.... I'm in charge of janitorial. We
will be hiring a sales rep and that job is open

We just need to hire someone to answer the phone.

And
also hire company reps with staff all over the free world.

Only be open for business during the hours of darkness
'cause who gives a damn about working in the daytime.

Work attire will be at your own discretion. Each break
room/company lounge will be fully stocked with food and
beverage at company expense.

Base starting salary is six figures. 1 month annual vacation
with pay. Full medical benefits provided. Company
vehicles provided to all. Expense accounts are provided.

Let the Lotto Gods be good to me......


Pops.

you must think they make a little more money than they really do, unless your guna pay the workers with the money from the lotto. If thats the case, ill answer phones :)

Quote:

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Originally posted by Quickmcj
I must say...that is a really clever design whether or not it is your design, but applause to you if it is.

I do not know if that drawing is basic knowledge among cooling technicians, but if not I would not show it to the “public” so to speak. Companies can copy your excellent work with no trouble at all.

Then again…if it IS basic knowledge I glad you posted the picture, to clarify things ;)

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nope i designed it from stratch....my own.but i am sure i am not the first to think of it..:D

if anyone has seen one before it would be Gary,what he thinks of it would prove interesting to me .

as far as i know i have the only twin or triple working evaperator system for a computer anywhere.
if anyone here has ever seen one let me know.

that means chip-con i will know where it came from if you start selling one.... lol but it wont be easy....:D

ok well been busy tonight.

this is what is going on tonight.

first i am checking the new triple manifold for leaks,running vacuum for 12 hours and them pressurize for 12 more.

i cannt stress how important it is to take the time to test every componant you can seperatly before you put the unit together.so many of my friends online rush to get it togther without taking the time to check every section.everyone should notice i build my stuff in sections to check it this way.any thats why i dont have near the trouble as some.

hees the manifold capped off and under vacuum

next i am working on a cover for the new evaperator i am putting on TheDudes prommie.
this pic you can see i have the basic cover done and installed 4 feet inside of the cover (this is to place even and strong pressure to the cpu without crushing the foam that the block will have to be filled with).

this is the cover as i start to make a mold of it.once the bottom mold is complete i will make a inside mold and then i should be able to pour the new covers quickly and more easily.

You are loving this just way too much Bowman. :D

Rock.

last but not least i have a small unit i am going to start on for a man who is building a custom pc from stratch.;)

Once again!.....I'm speechless!....:worship: :worship: :)

Quote:

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Originally posted by bowman1964
last but not least i have a small unit i am going to start on for a man who is building a custom pc from stratch.;)

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are dents like that in the compressor ok?

mine has dents on the bottom right behind the screws that hold the compressor the the metal bottom plate. there not all the same shape so i was curious?

Quote:

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Originally posted by Dissolved
are dents like that in the compressor ok?

mine has dents on the bottom right behind the screws that hold the compressor the the metal bottom plate. there not all the same shape so i was curious?

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mine is made that way from the factory,it is fine.most compressors have dimples or dents for a reason.

Quote:

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Originally posted by bowman1964
mine is made that way from the factory,it is fine.most compressors have dimples or dents for a reason.

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ok thanks :)

Nice job btw on all your stuff its very interesting to see the pictures of your workshop, hope you can get some free time to relax soon :)

Uhhhh... in the new manifold, the large capillary needs to tie into the suction line above the liquid level or it defeats the purpose. The liquid refrigerant will drain out into the suction line while the system is off.

I wouldn't want to discourage you for anything, Bowman. Let's just say that it is not patentable (obsolete actually), but clever of you to come up with it. :D

Got a position for a retired service technician/author in the new Chipcon?

Bowman....

Awesome job on the new evap cover mold! I like the feet idea....should work great! :D

I love it here :D

It would be great if we could use one of those really big stainless steel coffee cup that is insulated by a vacuum and use it as an evap cover. I'm not sure how to get the suction line through it without breaking the vacuum.

It would look really good as well :D

Quote:

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Originally posted by Gary Lloyd
Uhhhh... in the new manifold, the large capillary needs to tie into the suction line above the liquid level or it defeats the purpose. The liquid refrigerant will drain out into the suction line while the system is off.

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well i havent drilled the cap tube because of that.
2 things i am running though my head.
one if i run the large cap tube above the liquid line there is a possablity that oil will collect there and not drain.
if i run it like in the picture i will have to use a very well selected piece of cap tube that will not drain very well while running to allow it to fill with refrigerant and oil.then when unit it off the oil will drain out slowly.at startup the oil will go straight back to the compressor.i will try and post a small pic of what i am talking about later.

I haven't been able to find a picture of an accumulator online, but I will try to describe it for you:

The refrigerant coming back from the evap dumps into a large shell. Inside the shell is a U shaped tube. One end of the tube is open. The tube goes down to the bottom of the shell, then up to the top where the non-open end attaches to the suction line back to the compressor. In other words, the compressor is pulling vapor from the inside top of the shell through the U-shaped tube. At the bottom of the U is a small hole. When the compressor is running, liquid feeds very slowly into the vapor stream through that hole.

I hope that made sense.

Quote:

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Originally posted by Gary Lloyd
I haven't been able to find a picture of an accumulator online, but I will try to describe it for you:

The refrigerant coming back from the evap dumps into a large shell. Inside the shell is a U shaped tube. One end of the tube is open. The tube goes down to the bottom of the shell, then up to the top where the non-open end attaches to the suction line back to the compressor. In other words, the compressor is pulling vapor from the inside top of the shell through the U-shaped tube. At the bottom of the U is a small hole. When the compressor is running, liquid feeds very slowly into the vapor stream through that hole.

I hope that made sense.

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although i did know that and they are easy to build but.....the problem with running the tube like that on my manifold is...

for that to work properly you need a certain amount of flow moving by the tube so it will pull a very slight vacuum though the tube,that is how a normal accumulor works.the fast moving gas creates a low pressure area at the mouth of the feed tube creating the small vacuum needed to pull the liquid up and out.but on the manifold i have it will not have enough flow because of the size of the tube,not giving it enough flow to create a usable vacuum.
this is why i am leaning towards a small piece of cap tubing in the bottom that will constantly drain small amounts of oil and refrigerant while it is running and completly drain when unit it off.

o and for everyone who would like to see a accumulator here is a small pic of a accumulator with a cooler built in.

Okay then, using your design allows liquid to drain by gravity into the suction line during the off cycle. If the suction line then goes back upwards that liquid will be trapped, much like the suction line dip in the prommie.

One more U turn and you've got it. :D

Quote:

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Originally posted by Gary Lloyd
Okay then, using your design allows liquid to drain by gravity into the suction line during the off cycle. If the suction line then goes back upwards that liquid will be trapped, much like the suction line dip in the prommie.

One more U turn and you've got it. :D

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Yes you are right.:D
but i have reduced the return hose leaving the manifold to a size i think will not cause a restriction but keep the gas speed up enough to pull the oil in the hose back like normal....I hope.

What's the ID on the hose?

Quote:

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Originally posted by Gary Lloyd
What's the ID on the hose?

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Flex hose is 1/2"id but it wont make alot of differance since the compressor i will be testing it on is only setup for 3/8 id tube.so the smallest opening in the return line will determain the amount of flow.it will be faster than straight 3/8" all the way but not by much.

Amount of mass flow is equal at all points in the system, and is determined by the system's choke point (the cap tubes).

Velocity of flow varies with the ID at any given point.

Based on experience, I would go with 3/8 ID, especially if it is going uphill. The 1/2 ID may not have enough velocity to carry the oil upwards.

Quote:

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Originally posted by Gary Lloyd
Amount of mass flow is equal at all points in the system, and is determined by the system's choke point (the cap tubes).

Velocity of flow varies with the ID at any given point.

Based on experience, I would go with 3/8 ID, especially if it is going uphill. The 1/2 ID may not have enough velocity to carry the oil upwards.

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Funny you should say that......
i was worried about a possablity of that happening.so i am making the system with the 1/2 hose runnning from the manifold which will be 2 ft above the compressor running down to the connection which is 3/8 id tube at the condersor assem.so in any case it should be fine i hope.
thats another reason for the upper accumalor is the evaperators will be above the condensor assm and i knew everything would run down to the compressor too fast for my liking.
so i sat down and came up with the manifold with accumulator to help stop that problem..

Sounds like you have the situation well under control. :D

Hey Bowman, I still dont understand how you run three capillaries off one compressor. I thought it was only safe to run one??

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Originally posted by JToolz
Hey Bowman, I still dont understand how you run three capillaries off one compressor. I thought it was only safe to run one??

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you can run as many as you like as long as you can tune it to work.it just makes it more complicated to make work by a factor of 5...

for every cap tube you run you increase the load on the compressor.and increase the tuning needed.

all you are doing it increasing the refrigerant flow to the evap and increasing the load to the compressor and condensor.it is not to be tried by anyone unless you are pretty good with a single cap tube and have worked on quite a few,because i dont think it is possable to put one together without having to trouble shoot it.

it isnt like a single cap tube where you can follow a book and put it together,multiples act like a family.today thay get along tommorow they are fighting.there is constant tunning needed sometimes.lot of trouble,

i am mad right now....:mad:

another new unit( a brand new MACH II )is broken from shipping.i am not going to say much but show a pic where they all are breaking at so far,that i have personally seen.

Chip-Con needs to use pallets on the bottoms of the packing and prevent this type of recurrent breakage (just glad mine survived from Denmark to your place). It's sad something so expensive is packed so poorly.

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Originally posted by WxChaser
Chip-Con needs to use pallets on the bottoms of the packing and prevent this type of recurrent breakage (just glad mine survived from Denmark to your place). It's sad something so expensive is packed so poorly.

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well putting small pallets would help as i am shipping all my modded units out now with a small pallet,but...

i believe there can be a small improvement to stop this from happening in the furture if the unit is even dropped like this one was.
i am thinking hard about it now, i may start to include this improvement into my repairs and upgrades.
i feel i know what the problem is and it can be done at chip-con for little to no extra expense.and it will improve the cooling(but only slightly).

When my caseless Vapo came from Asetek, that was bolted to a wood frame with a wooden box around it. Best packing job ive seen, didnt even need peanuts.

With something that expensive, things like this shouldnt happen.

Your anger is well warranted.

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Originally posted by bowman1964
i am mad right now....:mad:

another new unit( a brand new MACH II )is broken from shipping.i am not going to say much but show a pic where they all are breaking at so far,that i have personally seen.

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its a gusher!! tap that oil well paw. jk. man oil is gross when it sprays all over you, i had that happen when my unit rolled over in the car when taking a turn too fast. pssssss, leaking propane/oil :banana:

that must have been dropped pretty hard to break one of those braze joints. do you add more oil when that happens? poe oil looks like lard when it leaks out of a small hole haha.

bowman. With that manifold of yours, by coiling the capillary tube around the manifold there is very little of it's surface area which is in contact with the copper pipe. If you slip a slightly larger pipe with one end capped over the cap tube and manifold. Then fill it up with some type of work liquid such as alcohol it will transfer the heat. Now you're relying more on conduction to transfer the heat and not mere convection.

I guess you could just solder the cap tube to the manifold. That would increase the surface area which is in contact, but that would be a pain in the ass to get off again.

Quote:

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Originally posted by JToolz
Hey Bowman, I still dont understand how you run three capillaries off one compressor. I thought it was only safe to run one??



you can run as many as you like as long as you can tune it to work.it just makes it more complicated to make work by a factor of 5...

for every cap tube you run you increase the load on the compressor.and increase the tuning needed.

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There has been some discussion of running three evap in series rather than parallel, using one cap tube. In 35 years in the trade I have never seen this done, but that doesn't necessarily mean that it can't or shouldn't be done. Theoretically, the center evap would run colder than the other two. A heavy load on the first two would starve the third, but extra refrigerant could be added to compensate. This would necessitate an accumulator. If there were a leak or a restriction, the third evap would suffer.

Problems, but nothing that can't be worked out. In any case, something that might make for an interesting experiment.

Quote:

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Originally posted by Apoc
bowman. With that manifold of yours, by coiling the capillary tube around the manifold there is very little of it's surface area which is in contact with the copper pipe. If you slip a slightly larger pipe with one end capped over the cap tube and manifold. Then fill it up with some type of work liquid such as alcohol it will transfer the heat. Now you're relying more on conduction to transfer the heat and not mere convection.

I guess you could just solder the cap tube to the manifold. That would increase the surface area which is in contact, but that would be a pain in the ass to get off again.

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what have you been doing.....spying on me?;) you can be arrested or maybe even shot for doing that.....:p:

yep there is a larger tube that will suround the bottom part.this will be filled with a easy to use liquid.
i am impressed to be honest.i hadnt said a word about that part because i cannt even start on installing it untill i get the cap tub wrapped and drain tube tube installed.very good my friend....:D

hehe.. thanks mate

I have too much free time :D

Great minds think alike :toast:

Hey Bowman! Are you running all three evaps off of one compressor? If so what are the specs of that compressor?

1hp if i recall correctly, which is roughly 12,000btu, and since that is a window unit compressor it can remove 12,000btu at 45F evap temps. what refrigerant are you using? that is an r22 compressor from the looks of it, are you using r404 in an r22 compressor? if it is r404 than the 12,000 would be somthing different, probly higher at the given evap temps but the condenser will have to remove more heat and the compressor will get as hot as my car hood on a hot summers day.

sorry guys my ISP is acting up and i cannt upload or even view the fourm from home.so i got back from a get away with my girlfriend over the weekend and now my ISP is screwing me....
i will try and update the pages as soon as i can.but right now online at work is all i have and it will be trying to catch up,but it will be slow.

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Originally posted by bowman1964
...so i got back from a get away with my girlfriend over the weekend...

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Where are your priorities?!?!?!?!? ;)

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Originally posted by uclajd
Where are your priorities?!?!?!?!? ;)

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well that was a tough decision.....:rolleyes:

you see one hand i had ......get alot of work caught up on my projects and maybe do some benching....

on the other hand i had a 6ft tall, very deep dark tanned ,bunette female, who layed topless on my boat for hours on end saturday and sunday.......

man it was a tough decision:slobber:

Quote:

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Originally posted by bowman1964
well that was a tough decision.....:rolleyes:

you see one hand i had ......get alot of work caught up on my projects and maybe do some benching....

on the other hand i had a 6ft tall, very deep dark tanned ,bunette female, who layed topless on my boat for hours on end saturday and sunday.......

man it was a tough decision:slobber:

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Whoa! Thats an easy decision for me. I think you made the right decision. :toast:

I didn't think you were that hard on your equipment (the boat man, the boat)! :D

Bowman,

You have topless prommies don't you? Several I imagine....every mans dream! :D

Quote:

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get away with my girlfriend over the weekend and now my ISP is screwing me....

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You're doing it wrong, Bowman. Should be vice versa. :D

Gotta teach these kids everything... lol

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Originally posted by Gary Lloyd
You're doing it wrong, Bowman. Should be vice versa. :D

Gotta teach these kids everything... lol

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Laughing my axx off......Gary I wondered who would be the first to spot my wording.....:toast:

Quote:

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Originally posted by Gary Lloyd
You're doing it wrong, Bowman. Should be vice versa. :D

Gotta teach these kids everything... lol

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hahahahahaha! That is one of the funniest things I've ever read in the forums. By the way, Hey Gary I came across your Tech Method book. One of my fathers friends is a refrigeration guy and he gave me a copy of it. Im reading it now, amazing book so far. I am noob at this stuff and am learning slowly but looking at Bowmans work and seeing his work and now reading your book, its like a whole new world. :banana:

Steal it so he will have to buy another copy. :D

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Originally posted by Gary Lloyd
Steal it so he will have to buy another copy. :D

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Actually I already took it :D But being the honest guy I am, Ill probably return it and buy my own.

I think you'll get your money's worth. When going for lowest possible temperature, fine tuning is everything.

Besides that, you'll be able to fix your own A/C, refrigerator, freezer, etc., and fine tune it better than most people in the trade. :D

..... if this boat's rockin'..... don't be knockin'.

How'd that song go? "don't rock the boat baby."

For punishment, you will remain in the Mod Shop

over the long Labor Day week-end and redeem yourself.

The sanity of the phase-change world is upon your

shoulders and you are carousing on some house boat

with a semi-nude lady. The Devil will get ya.

Repent!!!!



Pops.

we all need a break from computers..