Capillary tube Chart for Lenght vs Size

Hi all,

I got a situation where I need Capillary tubes of size: 0.094'' ID 15.75'' Lenght. Problem is, the manufacturer I deal with doesn't have this ID and could be three months before he can send me some.

I could get some 0.079 ID Cap tubes ( Closest I got on hand ) & I heard there were charts that could help me determine the right lenght to use. Where can I find those ?

It would be for R-22 @ 30 000BTU/Hr , 1 outdoor unit & 3 Indoor , Inverter Compressor. Do I have to get the same exact Capillaries or can I calculate equivalency with those 0.079 ID ones ?

I made the rule of three but really think it must be harder than that to find the equivalency.
Here's what it looks like..:

0.079 divided by 0.094 = 0.8404255
0.8404255 times 15.75 = 13.236701

So I would use a 13 7/16'' Lenght.

Waiting for your Expert advises ;)

Thanks,
Nice site BTW !

Attached is the Fluid diagram, I thought it might help.
I need the Caps# 3,4 & 5, those at the end of the condenser.

Thanks again !

You could try the free calculation software from Danfoss, namely Dancap.

http://www.danfoss.com/BusinessAreas...ils/DanCap.htm

It may help.

edit: Just had a look at your diagram; those capillaries are part of the condenser unit, you do not have to add them to the system,

hi
try actrol capillary conversion chart

Use this formula to convert the ID or length of a cap tube:

(L1/L2) = (D1/D2)^5.4

^ means to the power of

Thanks everyone !

Since I wasn't too sure about the 'to the power of' thing & didn't want to go through the Danfoss Registration ( maybe another time though ), I used the 'actrol capillary conversion chart' & it worked as a charm.

The exact dimensions were not there but I used the modifier of '0.095 to 0.08' ( 0.46 ) & applied it to my '0.094 to 0.079'. So I put 7 1/4 long of the 0.079 Capillary Tubes I had.

It may not be the exact precise theorical fit but has to be close enough.

Anyway, who cares about possessing THE perfect system as long as they got what they want & feel comfortable ..unless their a pain in the ass.. & we know there are some ;)

Thanks again,
I appreciate your quick answers, and they were all good ones so once again, Very nice site !