Insulation material for Mach II?

Monge

New member
What kind of insulation material and size does the Mach II and the Mach II GT use for the suction line?

And which is the best insulation material?

And whats the difference between the old Mach II (R134a) and new Mach II GT (R404a). What was changed?
 
I dont know about the size, but it is closed cell neoprene with a protective wrap around it.

The difference is exactly what you posted, one has r134a and one has r404a, and are tweaked for using those gases respectively. R404a has a lower boiling point than r134a, as it contains r507 as well as r134a, so it gives you lower temps.

G
 
Master_G: Thx :)

But what about the controller board?

Didn't it change?

Is it possible to mod the Mach II with new gas R404a or R507 or will the R404a/R507 give to much pressure/heat in the NL11F compressor?

Other modifications needed in combination with regassing?

Capilar tube length maybe?
 
AFAIK the controller board didnt change, only the firmware.

R404a and R507 mods are fine, phil does them, check out the site. The cap tube length needs to be changed and phil tweaks them for higher heatload (about 210W true holding value).

G
 
For regassing, there is no actual need to change the captube or it's length. If you want to get the best tuning, and the optimal result, then captube tuning can be done, but it's not something that's needed to get better temps and load from the unit.

The gas itself has a higher capacity, and the charge of the gas can be a strong determining factor in the ability for your mach to hold load. More gas = more load is a general rule to a point, within the confines of the captube length.

However, using the charge method of determining capacity is a double edged sword, and not without sacrifice. More gas in your unit means 2 things.

1. You can get to a point where you're heavily charged, enough that you simply cannot run your unit safely without some kind of load on the evaporator. The load from a cpu doing nothing isn't enough and you actually need to run a load program, like prime95, or Folding@home, just so that the refrigerant doesn't return to compressor as a liquid which can cause damage, both short term or long depending on how heavy that is.

2. You lose your colder temps. Balancing the charge vs. the ability to hold load is the trickiest part of doing the modifications. Tuning for 210w means that you won't be quite as cold at other, lower heatloads, but your temps don't change as much from idle to load. The perfect tuning is one that's done to YOUR specific cpu, while under load at maximum overclock. That's nearly impossible unless it's being tuned by the person who owns the PC, or you send your entire PC to the person who does it.

Tuning the captube to roughly what you're after, ie 210w = 9.6' of .031" for example, then tuning using a load tester which is exactly 210w, and charging so that you get the best temps at said 210w, will give you the best balance of load and temp at 210w.

The same could be said for any wattage you think your cpu will put out. That creates a lot of work for the person who's going to do that work, and you DO have a little give in either direction with tuning by charge amount. A stock unit may only be capable of 190w for example, and have a captube that's 200w nominal. After Fatty charges it with his load tester at 210w, it's capacity is higher both from the nature of the 507 gas, and the charge amount flooding the evaporator slightly more, which is slightly less efficient than the perfect amount (just enough to cool the load in question) but tends to have a lost less 'swing' in temps from idle to load, making your overclock easier to maintain as the temps don't rise as much. Also 'futureproofs' your unit a little more as you can go to a higher wattage cpu without worry.

Jeez...I talk too much...

Insulation that works well for me is 5/16" ID in either 9mm or 13mm thickness. 9mm will do, but 13mm is better. I find though that the side panel of the mach chassis is pushed a bit until the insulation get's flattened into shape.

Cheers

Gray
 
Gray: Thanks a lot for explaning :)

You don't talk to much IMO.

5/16" ID in either 9mm or 13mm thickness closed cell neoprene?

Where to find within EU?
 
I buy mine online here

http://www.bes.ltd.uk/nav_graf/frames_cat.htm

[FONT=Arial, Helvetica, sans-serif]Refrigeration - Insulation, Flexible Connectors, Clipshttp://www.extremeprometeia.com/forum/[/FONT] [FONT=Arial, Helvetica, sans-serif]Class O Armaflex [/FONT][FONT=Arial, Helvetica, sans-serif]Armaflex is a flexible, closed cell, elastometric, nitrile rubber insulation. It is a highly efficient method of insulating hot and cold water services, chilled water lines, heating systems, air conditioning ductwork and refrigeration pipework for frost protection, energy conservation and condensation control. Armaflex is dust, fibre and CFC free with an ODP of zero which means an environmentally friendly product. P/Ns 14927 to 14946 supplied in 2m lengths. P/Ns 14947 to 14960 supplied in various coiled lengths.[/FONT]

[FONT=Arial, Helvetica, sans-serif]SPECIFICATION[/FONT][FONT=Arial, Helvetica, sans-serif]Temperature range:[/FONT][FONT=Arial, Helvetica, sans-serif]minimum line temperature - 40 °C

maximum line temperature +105 °C
[/FONT][FONT=Arial, Helvetica, sans-serif]Thermal conductivity:[/FONT][FONT=Arial, Helvetica, sans-serif]to BS 874 part 2 1986[/FONT][FONT=Arial, Helvetica, sans-serif]Water vapour permeability:[/FONT][FONT=Arial, Helvetica, sans-serif]to BS 4370 part 2 1973[/FONT][FONT=Arial, Helvetica, sans-serif]Fire propogation: [/FONT][FONT=Arial, Helvetica, sans-serif]to BS 476 part 6 1989[/FONT][FONT=Arial, Helvetica, sans-serif]Fire performance:[/FONT][FONT=Arial, Helvetica, sans-serif]to BS 478 part 7 1987[/FONT][FONT=Arial, Helvetica, sans-serif]Noise reduction:[/FONT][FONT=Arial, Helvetica, sans-serif]DIN 4109 : to 30 dB (A)[/FONT]
14927.gif
14927coil.gif
 
I remember seeing some real nice insulation on XS - it was silver and shiny, with an effect like carbon fibre weave. I asked where it was from or what it was, but no one would tell me :(

So if anyone knows....
 
Hehehe

Hey Fatty we have the same supplier :D They're really good there, and for insulation it's hard to find a better price.

I spoke to them about carrying armaflex tape as well and they said it's something they'd consider in future but they haven't added it yet.

Stocky that's the braided sheathing that goes over the insulation, like the stuff you put on wiring and such in the PC. I have no idea where to get it in the UK in the size you need for insulation, but it can be had from Chilly when the evap heads are ordered and stuff. I'm not sure about what colors he had available but I asked him to send out some with some evap's I've ordered so I'll look at what colors are there.

I think I might know the one you mean though, on Ricky's modded LS I'm sure they used a silvery looking braid. Really sweet, but he said it was some local place in Portugal he got it from so might not be easy to find that specific color unless a person can find out who actually makes the stuff and orders direct but I haven't had any luck with that yet.

The braiding you get for your wiring isn't really any different I don't think, but finding someone who can get a large enough size for a suction line hasn't been easy 8)

Gray
 
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