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Temprite
01-08-2005, 01:10 PM
Hello all.

Does anyone know where you can obtain superheat/subcool charts for some of the more popular brands of split systems?

Thanks in advance.
frank
01-08-2005, 08:17 PM
Would a comparator not be of any help?
Brian_UK
01-08-2005, 11:10 PM
I don't know whether the 'modern' splits are provided with them; not like the old Carriers etc.

They assume, I think, that you have measured the pipework lengths and adjusted the charge accordingly.
Temprite
02-08-2005, 11:11 AM
Would a comparator not be of any help?

Forgive my ignorance frank.What is a comparator?

I have a table which gives different superheat values depending on indoor and outdoor temps.

Most units when you put gas in you weigh it in.
(Definitely inverters.)

But I was just wondering what different manufacturers recommend on their non inverter a/c's for superheat subcool.
frank
02-08-2005, 08:42 PM
Forgive my ignorance frank.What is a comparator?

It resembles a slide rule and gives the saturated vapour temperatures against gauge pressures for different refrigerants.

Very similar to the pressure/temp readings from your service gauges.
Temprite
03-08-2005, 11:37 AM
It resembles a slide rule and gives the saturated vapour temperatures against gauge pressures for different refrigerants.

Very similar to the pressure/temp readings from your service gauges.

Normally I use pressure temp chart.
One of the wholesaler price cataloges has pressure/temp charts for about 20 different refrigerants.
Definetely not small enought to fit into your pocket:)
How many refrigerants does it cater for?
jan behnke
03-08-2005, 07:06 PM
If you ask your refrigerant supplier nicely they should give you one, the one from bitzer is good
frank
03-08-2005, 08:16 PM
How many refrigerants does it cater for?

Normally 4 or 5 different gases. Really handy to have in the tool box :)
chemi-cool
03-08-2005, 08:40 PM
Hi Frank,
Danfoss used to make them.
Do they still do?

Chemi:)
frank
03-08-2005, 08:48 PM
Hi Chemi

Most of the ones we now use are provided by the refrigerant suppliers. Even picked up the latest R410a one at the NEC :D

We've now confirmed DEC are you still up for a meet? :)
CuGe
14-08-2005, 06:56 AM
A-Gas in Bristol do a good one: www.agas.com