Tecumseh Question

sdumper · 10-11-2009, 11:12 AM

Not sure if this is a screw or scroll how can I tell?

Tecumseh AKA5512EXA

http://www.tecumsehcoolproducts.com/...AK111AT-004-J7

What are the drawbacks if any from using a scroll as apposed to a screw? I plan on using two of these in a cascade I am starting soon.

ruffus · 10-11-2009, 06:43 PM

no it is a hermetic i have 1 of them and it works ok not the best but i never messed with it much. i have a tecumseh book that tells me everything even the starting hard ware

lesstutrey · 10-11-2009, 07:17 PM

Quote:

Originally Posted by ruffus

no it is a hermetic i have 1 of them and it works ok not the best but i never messed with it much. i have a tecumseh book that tells me everything even the starting hard ware

Thought hermetic = it's in a hermetic container, not indicative at all what type of compressor it is, other than the type you replace not repair (hermetic means air tight seal, therefor a hermetic compressor is just a weld sealed compressor) and they are usually reciprocating type compressors....

sdumper · 10-11-2009, 08:19 PM

Quote:

Originally Posted by ruffus

no it is a hermetic i have 1 of them and it works ok not the best but i never messed with it much. i have a tecumseh book that tells me everything even the starting hard ware

Hey so you have used this model compressor?

sdumper · 10-11-2009, 08:31 PM

Quote:

Originally Posted by lesstutrey

Thought hermetic = it's in a hermetic container

Correct...

For example here is a spec sheet for a hermetically sealed rotary...
http://sysdoc.doors.ch/LG/QK141C.pdf

Im sure Ruffus meant reciprocating...

ruffus · 10-11-2009, 08:41 PM

sorryya i ment reciprocating and yes i have used one before but it was something i was just messing with so could not tell u much about it as well i have a AJA5512XE as the first stage in this cascade and it works real good so give it a try i know i would

chilly1 · 10-12-2009, 01:38 AM

AJA5512XE

Critical data.... 5512 EXA
the first letters are family and config
second five, decimal places in BTU rating
12 is the first two numbers in the btu rating
so 12,000 BTU or one ton of refrigeration
This is an 1 hp hermetic compressor the last 2 digits is oil and voltage

sdumper · 10-12-2009, 05:35 AM

Quote:

Originally Posted by chilly1

AJA5512XE

Critical data.... 5512 EXA
the first letters are family and config
second five, decimal places in BTU rating
12 is the first two numbers in the btu rating
so 12,000 BTU or one ton of refrigeration
This is an 1 hp hermetic compressor the last 2 digits is oil and voltage

Still cant tell if its a scroll or not though but will call and check tomorrow.

ultralo1 · 10-12-2009, 08:59 AM

99% sure its a recip.

[XC] gomeler · 10-12-2009, 10:27 AM

Quote:

Originally Posted by ultralo1

99% sure its a recip.

Agreed. I'd say it isn't large enough to get into scroll territory, or at least the scrolls I've seen.

sdumper · 10-12-2009, 11:32 AM

Bummer thanks guys

ruffus · 10-12-2009, 04:33 PM

y do u want a scroll i will give u one but it is 220v i have never seen a 120v one

sdumper · 10-12-2009, 06:45 PM

Quote:

Originally Posted by ruffus

y do u want a scroll i will give u one but it is 220v i have never seen a 120v one

Thanks for the offer but 220v would be tough to sell when it goes in a cascade.

Any way I found a 13k btu for my first and a 12k btu for my second at a reasonable price so im set for the build im starting.

ruffus · 10-13-2009, 12:51 PM

where did u get some that big and can i get some

chilly1 · 10-13-2009, 01:13 PM

Quote:

Originally Posted by sdumper

Thanks for the offer but 220v would be tough to sell when it goes in a cascade.

Any way I found a 13k btu for my first and a 12k btu for my second at a reasonable price so im set for the build im starting.

Put the larger compressor in the second stage and add a large air cooled condenser before the HX it will increase the effeciency

sdumper · 10-13-2009, 07:11 PM

Quote:

Originally Posted by chilly1

Put the larger compressor in the second stage and add a large air cooled condenser before the HX it will increase the effeciency

Thanks Chilly im glad you posted because i was thinking the larger compressor should go as the anchor.

I normally do the following:

Largest compressor->Large fan air cooled Condenser->Filter Drier->Reciever->sight glass (optional)->TXV->HX->Smaller compressor->floated oilsep->desuper condeser->filter drier->HX->ect...

But I will try the 13k as the second and the 12k as the first.

Its awesome to have you back posting!!!

ruffus · 10-13-2009, 07:51 PM

hey man u should really put the oil sep after the de-superheater coil so that u don't burn up the oil sep

sdumper · 10-14-2009, 05:38 AM

Quote:

Originally Posted by ruffus

hey man u should really put the oil sep after the de-superheater coil so that u don't burn up the oil sep

It can go either way without hurting the oil sep...

sdumper · 10-21-2009, 08:53 AM

http://www.tecumsehcoolproducts.com/...RK147AT-021-J7

Ok I bought this compressor and its now arrived and it looks a bit smaller than I expected.
I bought it for the first stage of a 2 stager thinking it was close to 12k BTU and around 16cc.

Well the spec sheet states its 11700 btu but then it gets weird:

Displacement 0.993

Is the displacement in Cubic Inches?

[XC] gomeler · 10-21-2009, 09:21 AM

No need to make two threads about the same compressor, merged threads.

0.993 cubic inches is 16.27 cubic centimeters.

sdumper · 10-21-2009, 09:22 AM

nvm

I was mixing lra and rla numbers