How do I calculate what cap length I need ?

[The Byter]

I'll be using a 0.028" cap (if I can get one, 0.031 is np)

I would like to set it up for as little load as possible for lowest temps.

150W would be an over kill - na ?

[Gary Lloyd]

To calculate the cap tube, we need to know the refrigerant as well as the heat load.

[The Byter]

It's a r134a comp that I want to fill with R507 (can i do that?)
The heat load is another quastion, what would be the best setup ?

I see the GT is tuned for 200W, if ill tune for 150W - will I get lower temps ?

[Gary Lloyd]

Tuning for a lower heat load gives you lower temps IF your heat load is at or below that which it is tuned for. But if you have more heat load than the system is tuned for, the temps will skyrocket.

[The Byter]

10x

If I'll tune for 130W and my cpu will put out around 120W will I get lower temp then the GT ?
If so how low can I go this way ?

[Jelen]

Hello i'm connecting to this question. I have ~140W Compressor I will use R22 refrigerant how long caplary tube should I use for loads 150W and 200W CPU ,how long 1mm ID cappliary and 0.7mm

thx for answers

[Gary Lloyd]

Originally posted by The Byter
10x

If I'll tune for 130W and my cpu will put out around 120W will I get lower temp then the GT ?
If so how low can I go this way ?

If everything else in your system is the same as the GT, then yes. How low? I don't know.

[Gary Lloyd]

Originally posted by Jelen
Hello i'm connecting to this question. I have ~140W Compressor I will use R22 refrigerant how long caplary tube should I use for loads 150W and 200W CPU ,how long 1mm ID cappliary and 0.7mm

thx for answers

Guestimate: For 150W use 2.5M of .7mm cap tube. For 200W use 1.5M of .7mm cap tube. 1mm cap tube is not suitable for either.

[The Byter]

I'll be using a 0.031" cap, baker block, and around 200W is the gool.

how long do I need the cap ?
with the baker block came this spec:

"
Technical Specifications

Designed to be used with 120" of 0.028" capillary tubing but may vary depending on which compressor and refrigerant is being utilized in the system.
The connecter is a 3/8" flare fitting and 3/8" for piping is recommended.
"

120" is good ? do I need more for the 0.031 ?

10x 4 the help

[fr33ze]

http://www.phase-change.com/phpBB2/viewtopic.php?t=1206

[The Byter]

cheers